GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 059

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 059

581). For the measurement of very low temperature we use
A). mercury thermometer
B). vapour pressure thermometer
C). resistance thermometer
D). radiation thermometer

Answer: mercury thermometer


   
582). Control rods used in nuclear reactors are made of
A). stainless Steel
B). graphite
C). cadmium
D). plutonium

Answer: cadmium


   
583). In order to double the period of a simple pendulum .
A). its length should be doubled
B). its length should be quadrupled
C). the mass of its bob should be doubled
D). the mass of its bob should be quadrupled

Answer: its length should be quadrupled


   
584). If the depth of floatation of a ship changes when it sails from the Arabian sea to the Indian ocean, it is due to
A). change of pressure
B). change in weight of the ship
C). change of direction
D). change in density of sea water

Answer: change in density of sea water

   
585). A sudden decrease in the barometric pressure indicates
A). a stormy weather
B). a fine weather
C). a wet weather
D). a dry weather

Answer: a stormy weather


586). The lens used to rectify long sight is
A). concave lens
B). convex lens
C). plano concave lens
D). piano convex lens

Answer: convex lens


   
587). A solar eclipse occurs when
A). the sun, the moon and the earth are not in the same line
B). the moon comes between the sun and the earth
C). the earth comes between the sun and the moon
D). the sun Comes between the earth and the moon

Answer: the moon comes between the sun and the earth


   
588). Consider the following statements : 

Assertlon (A) : The rear View mirror used in motor vehicles is a convex mirror. 

Reason (R) : A convex mirror produces an erect, diminished virtual image.
Now select your answer according to the coding scheme given below:
A). Both (A) and (R) are true, but (R) is not the correct explanation of (A)
B). Both (A) and (R) are true, and (R) is the correct explanation of (A)
C). (A) is true, but (R) is false
D). (A) is false, but (R) is true

Answer: Both (A) and (R) are true, and (R) is the correct explanation of (A)


   
589). The process in which heat is transmitted without the aid of the intervening medium is
A). conduction
B). convection
C). radiation
D). none of these

Answer: radiation


   
590). When the pressure increase, the boiling point rises. The device Which uses this principle is
A). pressure cooker
B). electric iron
C). electric heater
D). manometer

Answer: pressure cooker