GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 081

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 081

 

 

 

801). Which of the following can be made into permanent magnet?
A). soft iron
B). hard steel
C). lead
D). none of these

Answer: hard steel


   
802). X-rays cannot pass through
A). glass
B). bone
C). tree
D). none of these

Answer: bone


   
803). The scientist who discovered that current can be produced in a closed conductor
A). Michael Faraday
B). Oersted
C). Ampere
D). Lenz

Answer: Michael Faraday


   
804). Water has maximum density at
A). 0° C
B). 4° C
C). 100° C
D). -4° C

Answer: 4° C


   
805). The densities of three liquids are D, 2D and 3D. What will be the density of the resulting mixture if equal volume of the three liquids are mixed?
A). 6D
B). 14D
C). 20D
D). 3D

Answer: 20D

 


806). Cooking is quicker in a pressure cooker because
A). increased pressure raises boiling point
B). steam is not wasted
C). steam cooks food faster
D). water boils at lower temperature

Answer: increased pressure raises boiling point


   
807). When a ship floats on water
A). the weight of water displaced is more than that of the ship
B). the weight of water displaced is less than that of I the ship
C). the Weight of water displaced equals that of the ship
D). it displaces no water

Answer: the Weight of water displaced equals that of the ship


   
808). GSLV project of India is connected to
A). agriculture development
B). conservation of river water
C). banking system
D). missile engines for space programmes

Answer: missile engines for space programmes


   
809). A decibel is
A). the relative intensity of sound
B). unwanted noise
C). a magnetic assembly in a tape
D). the arm of a record player

Answer: the relative intensity of sound


   
810). An antenna
A). converts short waves into long waves
B). absorbs heat
C). converts heat into light
D). converts radio waves into electrical signals

Answer: converts radio waves into electrical signals