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Showing posts with label CIVIL ENGINEERING. Show all posts
Showing posts with label CIVIL ENGINEERING. Show all posts

Friday, April 24, 2020

April 24, 2020

ENVIRONMENTAL POLLUTION & CONTROL MCQS 10

ENVIRONMENTAL POLLUTION & CONTROL  MCQS 10

MAGMEGURU

1. Pick out the wrong statement.
(A) A slight haze at the top of chimney indicates good combustion in the furnace
(B) A bag filter incurs very small pressure drop and is very efficient for removal of submicronic dust particles from flue gases at very high temperature
(C) Electrostatic precipitator is the most efficient dust collection equipment for removal of submicronic dust particles present in flue gas
(D) None of these
Answer: Option B
 
2. The progressive warming up of the earth's surface is mainly due to the
(A) Automobile exhaust
(B) Blanketing effect of CO2 in the atmosphere
(C) De-forestation
(D) Thickening of ozone layer
Answer: Option B
 
3. The function of skimming tank in sewage treatment is to remove __________ substances.
(A) Dissolved solid
(B) Suspended solid
(C) Oil & fatty
(D) Gritty & inorganic
Answer: Option C
 
4. Hydrogen ion concentration in distilled water is
(A) 10^-7
(B) 7 × 10^-7
(C) 107
(D) 7 × 10^7
Answer: Option A
 
5. A standard test for determination of hardness in water is termed as __________ test.
(A) EDTA
(B) Electometric
(C) Total count
(D) Presumptive
Answer: Option A
 
6. Infective bacteria in water is killed by the __________ process.
(A) Sterilisation
(B) Aeration
(C) Disinfection
(D) None of these
Answer: Option A
 
7. Removal of __________ results from the disinfection of water.
(A) Turbidity
(B) Odour
(C) Hardness
(D) Bacteria
Answer: Option D
 
8. Ozone is
(A) A primary pollutant
(B) A secondary pollutant
(C) Impervious to ultra-violet rays
(D) Both (B) and (C)
Answer: Option D
 
9. Which of the following is not a natural source of air pollution?
(A) Volcanic eruptions and lightening discharges
(B) Biological decay of vegetable matter
(C) Photochemical oxidation of organic matter
(D) None of these
Answer: Option D
 
10. Which of the following is a secondary air pollutant?
(A) Photochemical smog
(B) Sulphur dioxide
(C) Nitrogen dioxide
(D) Dust particles
Answer: Option A
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April 24, 2020

ENVIRONMENTAL POLLUTION & CONTROL MCQS 09

ENVIRONMENTAL POLLUTION & CONTROL  MCQS 09

MAGMEGURU

1. The weakest sound that can be heard by a person in a quiet environment is equivalent to
__________ decibel.
(A) 1
(B) 5
(C) 10
(D) 50
Answer: Option A
2. The maximum CO2 is emitted into the atmosphere by
(A) Combustion
(B) Urea
(C) Biomass burning
(D) Trees
Answer: Option A
3. Workers working in __________ industry are most prone to white lung cancer.
(A) Coal mining
(B) Limestone mining
(C) Textile
(D) Asbestos
Answer: Option C
4. Which of the following processes is involved in the biochemical treatment of sewage effluents?
(A) Oxidation
(B) Reduction
(C) Dehydration
(D) Fermentation
Answer: Option A
5. Which of the following is a manmade source of air pollution?
(A) Automobile exhaust
(B) Forest fire
(C) Bacterial action in soil and swamp areas
(D) All (A), (B) and (C)
Answer: Option A
6. The earth's atmosphere is an envelope of gases present upto a height of about __________ kms.
(A) 10
(B) 200
(C) 1000
(D) 2000
Answer: Option B
7. Which of the following is the most active zone of atmosphere in which weathering events like rain, storm & lightning occur?
(A) Thermosphere
(B) Troposphere
(C) Stratosphere
(D) None of these
Answer: Option B
8. TLV of NO2 & NO exposure for the human being is 5 & 25 ppm respectively. Prolonged exposure of human being to NO2 causes
(A) Skin disorder
(B) Bronchitis
(C) Bone disease
(D) Cancer
Answer: Option B
9. Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure to human beings. Ozone layer depletion in the atmosphere is mainly caused by the presence of
(A) CO2
(B) SO2
(C) Hydrocarbons
(D) CFC (chloro fluoro carbon)
Answer: Option D
10. The density of the gases (present in air) decreases with increasing altitude to such an extent, that about 70% of the mass of atmospheric air is found in the lower 5 km. of the atmosphere. This lower region of atmosphere is called the
(A) Ionosphere
(B) Troposphere
(C) Stratosphere
(D) None of these
Answer: Option B
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April 24, 2020

ENVIRONMENTAL POLLUTION & CONTROL MCQS 08

ENVIRONMENTAL POLLUTION & CONTROL  MCQS 08

MAGMEGURU

1. Global warming may result in
(A) Flood
(B) Cyclone
(C) Decrease in food productivity
(D) All (A), (B) and (C)
Answer: Option D
2. Maximum permissible residual chlorine in treated water should be __________ mg/litre.
(A) 0.001 to 0.01
(B) 0.2 to 0.3
(C) 2 to 3
(D) 5 to 10
Answer: Option B
3. Ringelmann chart No. 2 corresponds to __________ percent black smoke.
(A) 10
(B) 20
(C) 40
(D) 80
Answer: Option C
4. The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about __________ decibels.
(A) 60
(B) 90
(C) 105
(D) 120
Answer: Option B
5. Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by
(A) Chemical coagulation
(B) Floatation & skimming
(C) Centrifugation
(D) Ultra filtration
Answer: Option A
6. A masonry structure built below ground level, where biochemical reaction takes place due to anaerobic bacteria is called
(A) Cesspool
(B) Lagoon
(C) Skimming mill
(D) Septic tank
Answer: Option D
7. Pick out the wrong statement
(A) Low ozone layer thickness in polar regions is due to cold climatic conditions
(B) Amount of unburnt hydrocarbons emitted by two stroke petrol engine is more as compared to that emitted by a four stroke engine
(C) Carbon monoxide present in the two stroke petrol engine exhaust is much less as compared to that emitted from a four stroke engine
(D) Mercury as a pollutant can enter the blood stream & the digestive system/ lungs and is responsible for causing Minamata disease
Answer: Option C
8. Water filtration rate in a slow sand filter ranges from __________ litres/m2/hr.
(A) 10 to 20
(B) 100 to 200
(C) 1500 to 2500
(D) 4000 to 5000
Answer: Option B
9. __________ content of the phosphate rock is the pollutant of primary interest in a
phosphatic fertiliser plant.
(A) Calcium
(B) Fluorine
(C) Phosphorous
(D) Sulphur
Answer: Option B
10. Color test of water is done with an instrument called
(A) Tintometer
(B) Colorimeter
(C) Electro-chemical cell
(D) Turbidimeter
Answer: Option A
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April 24, 2020

ENVIRONMENTAL POLLUTION & CONTROL MCQS 07

ENVIRONMENTAL POLLUTION & CONTROL  MCQS 07

1. Green house gases blanket/block the infrared radiation from earth's surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect?
(A) CO2
(B) H2
(C) SO3
(D) N2
Answer: Option C
 
2. Which of the following is not a source of ozone emission in the atmosphere?
(A) Refrigerators
(B) Xerox machines
(C) Dermatological photo-therapy equipments
(D) High voltage electrical equipments
Answer: Option A
 
3. Which of the following is an adsorbent for removal of nitrogen oxides from gas/air?
(A) Active carbon
(B) Silica gel
(C) Bog iron (iron oxide)
(D) Pulverised limestone
Answer: Option B
 
4. Ringelmann chart is used for the evaluation of __________ pollution.
(A) Air
(B) Water
(C) Noise
(D) Radioactive
Answer: Option A
 
5. The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the
(A) Catalytic conversion
(B) Green house effect
(C) Global warming
(D) Both (B) and (C)
Answer: Option D
 
6. Inorganic impurities causing water pollution is
(A) Fats
(B) Carbohydrates
(C) Salts of metals
(D) Protein
Answer: Option C
 
7. Which of the following is not a practical method of low level radioactive waste disposal?
(A) Dilution with inert material
(B) Discharging to atmosphere through tall stacks after dilution
(C) Disposing off in rivers & oceans
(D) Filling in steel crates and shooting it off out of earth's gravity
Answer: Option D
 
8. In a sedimentation tank, the detention period for water ranges from __________ hours.
(A) 2 to 4
(B) 8 to 12
(C) 16 to 20
(D) 24 to 32
Answer: Option A
 
9. Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of
(A) Ozone and iodine
(B) Chlorine or its compounds
(C) Ultraviolet light for irradiation of water
(D) All (A), (B) & (C)
Answer: Option D
 
10. Inhalation of silica dust by human being during hand drilling in mica mining, lead & zinc mining, silica refractory manufacture and in foundries causes
(A) Asphyxiation (suffocation)
(B) Shortness of breath
(C) Tuberculosis
(D) All (A), (B) and (C)
Answer: Option D
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April 24, 2020

ENVIRONMENTAL POLLUTION & CONTROL MCQS 05

ENVIRONMENTAL POLLUTION & CONTROL  MCQS 05

MAGMEGURU

 

1. Which of the following is not a weightless pollutant?
(A) SPM
(B) Thermal pollution
(C) Radioactive rays
(D) Noise pollution
Answer: Option A
 
2. Noise level inside a jet airliner in normal flight is about __________ decibels.
(A) 80
(B) 100
(C) 125
(D) 150
Answer: Option B
 
3. Noise level in a quiet private business office is about __________ decibels.
(A) 25 (B) 50 (C) 70 (D) 85
Answer: Option B
 
4. Aerosols present in atmospheric air may be
(A) Positively charged 
(B) Negatively charged
(C) Neutral
(D) Combination of all (A), (B) & (C)
Answer: Option D
 
5. Which of the following fine dust removal equipments is the most efficient?
(A) Bag filter
(B) Scrubber
(C) Electrostatic precipitator
(D) Cyclone separator
Answer: Option C
 
6. Fresh domestic sewage is __________ in color.
(A) Grey
(B) Dark brown
(C) Red
(D) Black
Answer: Option A
 
7. Pick out the correct statement.
(A) Chemical oxygen demand (COD) is a measure of chemically oxidisable organic matter present in water
(B) COD is determined by oxidising the organic matter present in water with potassium dichromate in cone, sulphuric acid solution at boiling temperature for specified time
(C) COD is related to BOD of a given waste in water but the relationship varies for different wastes. Typically COD of potable water may be 1-2 mg/litre
(D) All (A), (B) and (C)
Answer: Option D
 
8. Polyvinyl chloride containers are not suitable for storing
(A) Foodstuffs
(B) Woolen clothes
(C) Metallic powder
(D) None of these
Answer: Option A
 
9. Maximum permissible concentration (i.e. TLV) of DDT in public water supply system is __________ micro gram (μ g)/litre.
(A) 22
(B) 42
(C) 332
(D) 1050
Answer: Option B
 
10. The resistance of water to the passage of light through it is a measure of the
(A) Turbidity
(B) Color
(C) Hardness
(D) Dissolved gases
Answer: Option A
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April 24, 2020

ENVIRONMENTAL POLLUTION & CONTROL MCQS 04

ENVIRONMENTAL POLLUTION & CONTROL  MCQS 04

MAGMEGURU

1. Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate?
(A) CO
(B) SO2
(C) NOx
 (D) CFC (chloro fluoro carbons)
Answer: Option A
2. Maximum permissible limit of mercury in human blood is __________ micrograms/100 c.c.
(A) 1
(B) 7
(C) 19
(D) 82
Answer: Option B
3. For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm.
(A) 10000
(B) 5
(C) 500
(D) 1000
Answer: Option B
4. Soluble silica present in boiler feed water can be removed by
(A) Coagulation
(B) Filtration
(C) Anion exchanger
(D) Preheating it
Answer: Option C
5. Threshold limit value (TLV) i.e., the maximum permissible safe limit of phosgene gas which Hitler used to use to kill his enemies in 'gas chamber' is about __________ ppm.
(A) < 1
(B) 10-100
(C) 100-200
(D) 100-1000
Answer: Option A
6. Presence of carbon monoxide in atmosphere produced by decomposition of chlorophyll and haemoglobin breakdown of some animals, beyond TLV (>50 ppm)
(A) Acts as a green house gas thereby raising earth's temperature
(B) Causes asphyxia
(C) Causes increase in sea level
(D) Enhances the green house effect
Answer: Option B
7. Smog is
(A) Nothing but black smoke
(B) A combination of smoke and fog
(C) A liquid particle resulting from vapor condensation
(D) A solid particle e.g. fly-ash
Answer: Option B
8. Fluorosis is caused due to the presence of excessive amount of __________ in drinking water.
(A) Mercury
(B) Lead
(C) Fluoride
(D) Arsenic
Answer: Option C
9. Noise pollution level in a chemical plant is expressed in
(A) Roentgen
(B) Decibel
(C) Hertz
(D) None of these
Answer: Option B
10. A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of __________ high above earth's atmosphere, which absorbs it.
(A) Hydrogen
(B) Carbon dioxide
(C) Ozone
(D) None of these
Answer: Option C
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April 24, 2020

ENVIRONMENTAL POLLUTION & CONTROL MCQS 01

ENVIRONMENTAL POLLUTION & CONTROL  MCQS 01

 

1. Which of the following is used in ceramic industries?
a) Electrostatic precipitator
b) Dynamic precipitator
c) Spray tower
d) Wet cyclonic scrubber
Answer: b

2. Wet scrub4bers are classified into ____ types.
a) 2
b) 3
c) 5
d) 6
Answer: b
3. The centrifugal collectors are classified into how many types?
a) 3
b) 4
c) 5
d) 2
Answer: d
4. Which of the following air pollution control device has maximum efficiency?
a) Electrostatic precipitator
b) Dynamic precipitator
c) Spray tower
d) Wet cyclonic scrubber
Answer: a
5. Which of the following fluid is used in web scrubbers?
a) Lime
b) MgSO4
c) NaCl
d) K2Cr2O7
Answer: a
6. Which of the following is incorrect regarding fabric filter?
a) They can remove very small particle
b) They are liable to chemical attack
c) They have low efficiency in comparison to venturi scrubber
d) They can handle large volume of gas at relatively high speed
Answer: c
7. Which of the following removes both gaseous and particulate contaminants?
a) Venturi scrubber
b) Gravitational settling chamber
c) Dynamic precipitator
d) Wet scrubber
Answer: a
8. Identify the correct statement regarding Electrostatic precipitator.
a) Minimum particle size removal is <0.5μm
b) They can be operated at high temperature
c) It has low maintenance cost
d) It does not cause any freezing problem
Answer: b
9. Pollution by particulate matter emission in the atmosphere does not take place during
metal
(A) Grinding
(B) Machining
(C) Cutting
(D) Polishing
Answer: Option D
10. There are thirteen metals which are treated as pollutants. Which of the following metals is
not a pollutant?
(A) Mercury
(B) Arsenic
(C) Aluminium
(D) Lead
Answer: Option C
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Tuesday, April 21, 2020

BUILDING MATERIALS MCQS SET 54
April 21, 2020

BUILDING MATERIALS MCQS SET 54

BUILDING MATERIALS MCQS SET 54

1. Pick up the metal refractory from the following:
(A) Molybdenum
(B) Tungsten
(C) Zirconium
(D) All of these
Answer: Option D

2. With storage, strength of cement 
(A) Increases
(B) Decreases
(C) Remains the same
(D) None to these
Answer: Option B

3. The commonly used raw material in the manufacture of cement, is
(A) Slate
(B) Sand stone
(C) Lime stone
(D) Basalt
Answer: Option C

4. The rocks formed from molten magma, are called
(A) Sedimentary rocks
(B) Igneous rocks
(C) Metamorphic rocks
(D) None of these
Answer: Option B

5. Bitumen paints offer
(A) Pleasing surface
(B) Hard surface
(C) Smooth surface
(D) Protective surface
Answer: Option D

6. Ground glass
(A) Is made by grinding its one side
(B) Is made by melting powdered glass paints surface
(C) Is used for getting light without transparency
(D) All the above
Answer: Option D

7. The wedging is adopted for quarrying costly stratified rock such as
(A) Laterite
(B) Marble
(C) Limestone
(D) All the above
Answer: Option D

8. The colour of statuary marble used for sculptor's work, is
(A) Red
(B) Blue
(C) White
(D) Green
Answer: Option C

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BUILDING MATERIALS MCQS SET 53
April 21, 2020

BUILDING MATERIALS MCQS SET 53

BUILDING MATERIALS MCQS SET 53

1. Pegmatite is a/an
(A) Intrusive igneous rock
(B) Extrusive igneous rock
(C) Sedimentary rock
(D) Metamorphic rock
Answer: Option A

2. Dorry's testing machine is used for
(A) Crushing test of stone
(B) Hardness test of stone
(C) Impact test of stone
(D) Water absorption test
Answer: Option B

3. Dolomite is a lime stone which contains carbonate of magnesia upto
(A) 15 %
(B) 20 %
(C) 25 %
(D) 45 %
Answer: Option D

4. The portion of the brick cut across its width and having its length equal to that of a full brick, is
known as
(A) Closer
(B) Queen closer
(C) King closer
(D) Prince closer
Answer: Option B

5. The minimum percentage of silica, alumina and ferric oxide in lime for white washing, is
(A) 20
(B) 15
(C) 5
(D) 0
Answer: Option D

6. For a 50 kg cement bag water required, is
(A) 16.5 litres
(B) 18.5 litres
(C) 20.5 litres
(D) 22.5 litres
Answer: Option D

7. Slump test for concrete is carried out, to determine
(A) Strength
(B) Durability
(C) Workability
(D) Water content
Answer: Option C

8. The frog of a brick is normally made on its
(A) Top face
(B) Bottom face
(C) Longer face
(D) Shorter side
Answer: Option A

9. Granite mainly composed of quartz and feldspar particles, is obtained from
(A) Sedimentary rocks
(B) Metamorphic rocks
(C) Igneous rocks
(D) All the above
Answer: Option C

10. Pig iron obtained from the furnace which is properly provided with fuel at a very high  temperature, is called
(A) Bessemer pig
(B) Grey or foundry pig
(C) White or forge pig
(D) Mottled pig
Answer: Option B
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BUILDING MATERIALS MCQS SET 52
April 21, 2020

BUILDING MATERIALS MCQS SET 52

BUILDING MATERIALS MCQS SET 52

1. Mild steel is used for
(A) Structural works in beams, joints and girders
(B) Small sized water pipes
(C) Columns and struts
(D) None of these
Answer: Option A

2. The most valuable timber may be obtained from
(A) Chir
(B) Shishum
(C) Sal
(D) Teak
Answer: Option D

3. Mastic asphalt is
(A) Acid resisting material
(B) Non-corrosive material
(C) Corrosive material
(D) Heating-resisting material
Answer: Option B

4. For lime concrete,
(A) Slump is 50 to 75 mm
(B) Flexural strength at 90 days is 0.2 N/mm2
(C) Compressive strength at 90 days is 1.5 N/mm2
(D) All the above
Answer: Option D

5. The material generally not used as extender in paints, is
(A) Powdered silica
(B) Gypsum
(C) Talc
(D) Zinc white
Answer: Option D

6. Pick up the non-inflammable plastic from the following:
(A) Cellulose acetate plastics
(B) Polyvinyl chloride plastics
(C) Phenol formaldehyde plastic
(D) Urea formaldehyde plastic
Answer: Option B

7. For light and ornamental casting, the most unsuitable pig iron, is
(A) Bessemer pig
(B) Grey or foundry pig
(C) White or forge pig
(D) Mottled pig
Answer: Option D

8. If the ore impurities is
(A) Clay, lime stone is used as flux
(B) Lime stone, clay is used as flux
(C) Quartz, lime stone and argillaceous iron ores are used as flux
(D) All the above
Answer: Option D 

9. The plastics prepared from Vinyl resin are
(A) Odourless
(B) Non-toxic
(C) Transparent
(D) All of these
Answer: Option D

10. A rock contains only one mineral. It is called
(A) Homogeneous
(B) Non-homogeneous
(C) Monomineralic
(D) Polymineralic
Answer: Option C
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BUILDING MATERIALS MCQS SET 51
April 21, 2020

BUILDING MATERIALS MCQS SET 51

BUILDING MATERIALS MCQS SET 51

1. For making fly-ash building bricks, the following mix of fly-ash, sand and lime, is
(A) 80 : 13 : 7
(B) 70 : 20 : 10
(C) 60 : 35 : 5
(D) None of these
Answer: Option A

2. Water paint is a
(A) White wash
(B) Colour wash
(C) Whiting
(D) All the above
Answer: Option D

3. Spirit varnish generally consists of
(A) Oil, wax and resin
(B) Alcohol, wax and turpentine
(C) Pigment and synthetic resin
(D) Spirit and shellac
Answer: Option D

4. Duco paints are
(A) Plastic paints
(B) Cellulose paints
(C) Emulsion paints
(D) Oil paints
Answer: Option D

5. Pick up the correct statement from the following:
(A) Melamine is obtained from calcium carbide
(B) Formaldehyde is prepared synthetically from methane
(C) The melamine when reacted with formaldehyde forms the melamine-formaldehyde resin
(D) All the above
Answer: Option D

6. Steel contains carbon approximately
(A) 1.50% to 5.6%
(B) 0.05% to 1.75%
(C) 0.25 %
(D) None to these
Answer: Option B

7. Based on its dry weight, a freshly felled tree may contain water
(A) 25 %
(B) 50 %
(C) 75 %
(D) 100 %
Answer: Option D

8. Forge pig may be converted to wrought iron by
(A) Rolling
(B) Pudding
(C) Shingling
(D) Refining
Answer: Option B

9. Pick up the correct statement from the following:
(A) Bull's trench kiln a trench excavated in ground
(B) Hoffman's kiln is constructed over ground
(C) Tunnel Kiln is constructed as a tunnel
(D) All the above
Answer: Option D

10. The softest rock is
(A) Marble
(B) Diamond
(C) Talc
(D) Quartz
Answer: Option C
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BUILDING MATERIALS MCQS SET 50
April 21, 2020

BUILDING MATERIALS MCQS SET 50

BUILDING MATERIALS MCQS SET 50

1. In arches, stratified stones are placed so that their planes are
(A) Parallel
(B) Perpendicular
(C) Radial
(D) None of these
Answer: Option C 

2. The fire clay contains pure
(A) Lime
(B) Oxide of iron
(C) Hydrated aluminium silicate
(D) Magnesium
Answer: Option C

3. Pick up the correct characteristic of Pyroxene from the following:
(A) It forms octagonal crystals
(B) It converts to chlorine by hydration
(C) Its density is 2.3 to 3.6 g/cm2
(D) All the above
Answer: Option D

4. The base material for distemper, is
(A) Chalk
(B) Lime
(C) Lime putty
(D) Cement wash
Answer: Option A

5. Slacking of lime is affected by
(A) Keeping it exposed to air
(B) Immersing the lime in water
(C) Crushing the lime lumps
(D) None of these
Answer: Option B

6. Stones used for the construction of retaining walls must be
(A) Soft
(B) Hard
(C) Light
(D) Heavy
Answer: Option D

7. Permanent magnets are made of high carbon steel and
(A) 15% of cobalt
(B) 20% of cobalt
(C) 35% of cobalt
(D) 45% of cobalt
Answer: Option D

8. Stainless steel resists corrosion due to
(A) Carbon
(B) Sulphur
(C) Vanadium
(D) Chromium
Answer: Option D

9. The most important constituent of varnish, is
(A) Drier
(B) Solvent
(C) Resin
(D) All the above
Answer: Option D

10. A ferrous metal is
(A) Cast iron
(B) Wrought iron
(C) Steel
(D) All the above
Answer: Option D
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BUILDING MATERIALS MCQS SET 49
April 21, 2020

BUILDING MATERIALS MCQS SET 49

BUILDING MATERIALS MCQS SET 49

1. In stone masonry, stones (stratified rocks) are so placed that the direction of pressure to the plane
of bedding is
(A) Right angles
(B) 45°
(C) 60°
(D) Parallel
Answer: Option A

2. The most durable varnish is
(A) Water varnish
(B) Spirit varnish
(C) Turpentine varnish
(D) Oil varnish
Answer: Option D

3. Softer variety of steel may be obtained by
(A) Cementation process
(B) Crucible process
(C) Bessemer process
(D) Open hearth process
Answer: Option C

4. Bitumen emulsion is
(A) A liquid containing bitumen in suspension
(B) A paint
(C) Used as anti-corrosive paint
(D) All the above
Answer: Option D

5. Plastic bitumen is generally used for
(A) Road pavements
(B) Expansion joints
(C) Crack fillings
(D) None to these
Answer: Option C

6. Asbestos is
(A) Corrugated sheet used for roofing
(B) An incombustible fire proof material
(C) An organic substance
(D) All the above
Answer: Option D

7. The rocks which are formed due to pouring of magma at the earth's surface are called
(A) Plutonic rocks
(B) Hypabyssal rocks
(C) Volcanic rocks
(D) Igneous rocks
Answer: Option C

8. Invar contains
(A) 12% of nickel
(B) 24% of nickel
(C) 30% to nickel
(D) 36% of nickel
Answer: Option D

9. Distemper is
(A) A paint consisting of powdered chalk, pigments and water
(B) A water proofing agent
(C) A paint consisting of coloured cement and water
(D) A drying agent
Answer: Option A

10. The compound of Portland cement which reacts immediately with water and also sets first is
(A) Tri-calcium silicate
(B) Di-calcium silicate
(C) Tri-calcium aluminate
(D) Tetra calcium alumino ferrite
Answer: Option C
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BUILDING MATERIALS MCQS SET 48
April 21, 2020

BUILDING MATERIALS MCQS SET 48

BUILDING MATERIALS MCQS SET 48

1. Dry rot
(A) Cracks the timber
(B) Reduces the strength of timber
(C) Reduces the timber to powder
(D) Spoils the appearance of timber
Answer: Option C

2. Pozzolana (or surkhi) is used in lime
(A) To impart hydraulicity
(B) To prevent shrinkage
(C) To decrease the cost of construction
(D) To decrease the setting time
Answer: Option A

3. The size of modular bricks, is
(A) 10 × 10 × 9 cm
(B) 19 × 9 × 9 cm
(C) 22.5 × 10 × 8.5 cm
(D) 22.5 × 8.0 × 9 cm
Answer: Option B
 
4. Plywood is obtained by gluing wooden sheets at
(A) 100 to 150 N/cm2
(B) 100 to 130°C
(C) Both (A) and (B)
(D) Neither (A) nor (B)
Answer: Option C

5. The low voltage porcelain is mainly used for
(A) Switch block
(B) Insulating tubes
(C) Lamp sockets
(D) All of these
Answer: Option D

6. The initial setting time of hydraulic lime, is
(A) 30 minutes
(B) 60 minutes
(C) 90 minutes
(D) 120 minutes
Answer: Option D

7. PVC stands for
(A) Plastic very compact
(B) Polythene vinyl chloride
(C) Polythene vinyl carbon
(D) Polythene vanadium carbide
Answer: Option B

8. Cement paints usually
(A) Contain hydrated lime
(B) Contain 5% to 10% colour pigments
(C) Contain 5% sodium chloride
(D) All the above
Answer: Option D

9. The kiln which may work throughout the year, is
(A) Clamp
(B) Bull's kiln
(C) Hoffman's kiln
(D) None of these
Answer: Option C

10. The main ingredient of a good quality brick earth, is
(A) Magnesia
(B) Lime
(C) Silica
(D) Alumina
Answer: Option D
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BUILDING MATERIALS MCQS SET 47
April 21, 2020

BUILDING MATERIALS MCQS SET 47

BUILDING MATERIALS MCQS SET 47

1. Lime concrete is generally used for
(A) Wall foundations
(B) Flooring at ground level
(C) Both (A) and (B)
(D) Neither (A) nor (B)
Answer: Option B

2. Bituminous fells are used for
(A) Covering A.C. sheets
(B) Covering sloping roofs
(C) D.P.C.
(D) None to these
Answer: Option A

3. Quick setting cement is produced by adding
(A) Less amount of gypsum in very fine powdered form
(B) More amount of gypsum in very fine powdered form
(C) Aluminium sulphate in very fine powdered form
(D) Pozzolana in very fine powdered form
Answer: Option C

4. Pick up the correct statement from the following:
(A) The substance which consists of one primary chemical, is known as monomer
(B) The polymer consists of thousands of monomers joined together
(C) The polymer molecule is called macro-molecule  
(D) All the above
Answer: Option D

5. The normal curing period for lime mortar, is:
(A) 1 day
(B) 3 days
(C) 7 days
(D) 10 days
Answer: Option C

6. German silver is an alloy of
(A) Zinc, lead and nickel
(B) Silver, gold and lead
(C) Copper, nickel and zinc
(D) Copper, brass and zinc
Answer: Option C

7. For the manufacture of stainless steel, steel is mixed with
(A) Chromium
(B) Nickel
(C) Tungsten
(D) None of these
Answer: Option A

8. The presence of original rounded surface on the manufactured piece of timber, is called
(A) Wane
(B) Torn grain
(C) Diagonal grain
(D) Chipmark
Answer: Option A

9. In paints, the pigment is responsible for
(A) Durability
(B) Colour
(C) Smoothness
(D) Glassy face
Answer: Option B

10. The operation of removal of impurities or clay adhering to iron ores, is known as
(A) Dressing
(B) Calcination
(C) Roasting
(D) Smelting
Answer: Option A
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BUILDING MATERIALS MCQS SET 46
April 21, 2020

BUILDING MATERIALS MCQS SET 46

BUILDING MATERIALS MCQS SET 46

1. The compound of Portland cement which contributes to the strength after two to three years is
(A) Tri-calcium silicate 
(B) Di-calcium silicate
(C) Tri-calcium aluminate
(D) Tetra-calcium alumino ferrite
Answer: Option B

2. Bessemer process is used for the manufacture of
(A) Pig iron
(B) Cast iron
(C) Wrought iron
(D) Steel
Answer: Option D

3. Which one of the following is an air binding material?
(A) Gypsum
(B) Acid-resistant cement
(C) Quick lime
(D) All of these
Answer: Option D

4. A good quality stone absorbs water less than
(A) 5 %
(B) 10 %
(C) 15 %
(D) 25 %
Answer: Option A

5. The slag which floats on the surface of the molten iron generally contains
(A) Lime (CaO) 45%
(B) Silica (SiO2) 35%
(C) Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8%
(D) All the above
Answer: Option D

6. For the manufacture of plywood, veneers are placed so that grains of adjacent veneers
(A) Run at right angles
(B) Parallel
(C) Inclined at 45°
(D) Inclined at 60°
Answer: Option A

7. The commonly used drying oil for oil paints, is
(A) Olive oil
(B) Linseed oil
(C) Kerosene oil
(D) Acetate of lead
Answer: Option D

8. Initial setting of cement is caused due to
(A) Tri-calcium silicate
(B) Di-calcium silicate
(C) Tri-calcium aluminate
(D) Tetra calcium alumino ferrite
Answer: Option C

9. Wrought iron is manufactured from pig iron by
(A) Refining
(B) Pudding
(C) Shingling
(D) All the above
Answer: Option D

10. Fibre boards can be
(A) Distempered
(B) Painted
(C) Painted and distempered
(D) Used for furniture
Answer: Option D
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BUILDING MATERIALS MCQS SET 45
April 21, 2020

BUILDING MATERIALS MCQS SET 45

BUILDING MATERIALS MCQS SET 45

1. The commonly used colour pigment in paints, is
(A) Ambers
(B) Carbon black
(C) Iron oxide
(D) All the above
Answer: Option D

2. The variety of pig iron used for the manufacture of steel by Bessemer process, is
(A) Bessemer pig
(B) Grey pig
(C) White forge pig
(D) Mottled pig
Answer: Option A

3. Vanadium steel is generally used for
(A) Railway switches and crossing
(B) Bearing balls
(C) Magnets
(D) Axles and springs
Answer: Option D

4. A badly mixed cement concrete results in
(A) Segregation
(B) Bleeding
(C) Honey combing
(D) None of these
Answer: Option C

5. Chemically, marble is known as
(A) Metamorphic rock
(B) Argillaceous rock
(C) Calcareous rock
(D) Siliceous rock
Answer: Option C

6. The filler used in plastic bitumen, is
(A) Shale powder
(B) Talc powder
(C) Asbestos powder
(D) Plastic powder
Answer: Option C

7. Mastic asphalt is generally used for
(A) Damp proof course
(B) Water proof layer
(C) Partition walls
(D) Both (A) and (B)
Answer: Option D

8. The most fire resistant paints are:
(A) Enamel paints
(B) Aluminium paints
(C) Asbestos paints
(D) Cement paints
Answer: Option C

9. A pug mill is used for
(A) Softening brick earth
(B) Moulding brick earth
(C) Tempering brick earth
(D) Providing brick earth
Answer: Option C

10. A good brick earth should contain:
(A) About 20% to 30% of alumina
(B) About 50% to 60% of silica
(C) Not more than 5% of lime
(D) All the above
Answer: Option D
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BUILDING MATERIALS MCQS SET 44
April 21, 2020

BUILDING MATERIALS MCQS SET 44

BUILDING MATERIALS MCQS SET 44

1. The initial setting time of lime-pozzolana, is
(A) 30 minutes
(B) 60 minutes
(C) 90 minutes
(D) 120 minutes
Answer: Option D

2. The clay to be used for manufacturing bricks for a large project, is dugout and allowed to weather
throughout
(A) The monsoon
(B) The winter
(C) The summer
(D) None of these
Answer: Option A

3. If the furnace is provided with insufficient fuel at low temperatures, the type of pig iron produced,
is called
(A) Bessemer pig
(B) Grey or foundry pig
(C) White or forge pig
(D) Mottled pig
Answer: Option C

4. Depending on the chemical composition and mechanical properties, iron may be classified as
(A) Cast iron
(B) Wrought iron
(C) Steel
(D) All the above
Answer: Option D

5. The main constituent of fly-ash, is
(A) Aluminium oxide
(B) Silica
(C) Ferrous oxide
(D) All of these
Answer: Option D

6. Brittleness of cold is due to an excess of
(A) Sulphur
(B) Carbon
(C) Phosphorus
(D) Silicon
Answer: Option C

7. Asbestos cement
(A) Is brittle
(B) Warps due to changes in humidity
(C) Strength is lowered when saturated by water
(D) All of the above 
Answer: Option D

8. Gneiss is obtained from
(A) Igneous rocks
(B) Metamorphic rocks
(C) Sedimentary rocks
(D) Sedimentary metamorphic rocks
Answer: Option D

9. Fibre glass
(A) Retains heat-longer
(B) Has a higher strength to weight ratio
(C) Is shock proof and fire retardant
(D) All the above
Answer: Option D

 10. Pick up the correct statement from the following:
(A) The theory of formation of concrete is based on the phenomena of formation of voids
(B) The bulking of sand is taken into account while volumetric proportioning of the aggregates
(C) The dry sand and the sand completely flooded with water, have practically the same volume
(D) All the above
Answer: Option D
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BUILDING MATERIALS MCQS SET 43
April 21, 2020

BUILDING MATERIALS MCQS SET 43

BUILDING MATERIALS MCQS SET 43

1. Pick up the correct statement from the following:
(A) Hornblende mineral is brittle
(B) Muscovite is also known as white mica and potash mica
(C) Biotite is also known as black-mica
(D) All the above
Answer: Option D

2. Good quality sand is never obtained from
(A) River
(B) Lake
(C) Sea
(D) Gravel powder
Answer: Option C

3. Lime mortar is generally made with
(A) Quick lime
(B) Fat lime
(C) Hydraulic lime
(D) Plain lime
Answer: Option C

4. Pick up the compound responsible for early strength of cement from the following:
(A) Tetra-calcium alumino-ferrite 
(B) Tri-calcium silicate
(C) Tri-calcium aluminate
(D) Di-calcium silicate
Answer: Option B

5. Linseed oil is used in paints as
(A) Thinner
(B) Vehicle
(C) Base
(D) Drier
Answer: Option D

6. Asphalt is obtained from
(A) Petroleum distillation
(B) Bitumen distillation
(C) Plastic distillation
(D) None of these
Answer: Option A

7. Percentage content of silica in window glass, is
(A) 40 to 45
(B) 50 to 55
(C) 60 to 65
(D) 70 to 75
Answer: Option D

8. Most commonly used solvent in oil paints, is
(A) Petroleum
(B) Spirit
(C) Coal tar
(D) Turpentine
Answer: Option A

9. The harmonious mixing of the clay ingredients, is known as
(A) Weathering
(B) Blending
(C) Tempering
(D) None of these
Answer: Option B

10. Bitumen felt
(A) Is used as water proofing material
(B) Is used as damp proofing material
(C) Is made from bitumen and hessian fibres
(D) All the above
Answer: Option D
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