Physcis Quiz - 1 - TNPSC Portal

1. A man jumping out of a moving train will ne thrown in which direction
   1. Sideways
   2. Backward
   3. Forward
   4. None of the above
   
   
2. If a person weighs 12 kg in earth how much he will weighs at moon
   1. 1 kg
   2. 3 kg
   3. 5 kg
   4. 2 kg
   
   
3. When ice melts its volume
   1. Decreases
   2. Increases
   3. Remains Same
   4. None of the above
   
   
4. When water is cooled from 4 degree celcius to 2 degree celcius its density
   1. Remains the same
   2. first increase then decrease
   3. Increases
   4. Decreases
   
   
5. A piece of ice is floating in water kept in a beaker. Ehen all the ice melts the level of water will
   1. Rise
   2. Fall
   3. First rise then fall
   4. Remain the same
   
   
6. A ship sailing from a river to the sea
   1. Sinks more in the sea
   2. Sinks less in the sea
   3. Neither sinks nor less in the sea
   4. Sinking more or less depends on the sea
   
   
7. A pressure gauge for fluids is called
   1. Hydrometer
   2. Lactometer
   3. Manometer
   4. Anemometer
   
   
8. Hydraulic Jack to lift heavy vehicles in automobile service stations is one of the application of
   1. Archimidis Law
   2. Boyle Law
   3. Hooke's law
   4. Pascal's law
   
   
9. Instrument to detemine the Relative Density of a liquid is
   1. Hygrometer
   2. Hypsometer
   3. Hydrometer
   4. Densimeter
   
   
10. Pieces if camphor placed on water move about rapidly. This is because of
    1. Viscosity
    2. Surface tension
    3. Diffusion
    4. Capillarity
    
    
11. Mixing up of two gases is a reust of
    1. Diffusion
    2. Effusion
    3. Vaporisation
    4. Sublimation
    
    
12. Powder clings in our skin because of
    1. Cohession
    2. Adhession
    3. Capillary action
    4. Absorbtion
    
    
13. Metals are good conductors of heat because
    1. Their atoms are relatively for apart
    2. They have reflecting surfaces
    3. They contain free electrons
    4. Their attom collide frequently
    
    
14. A temperature below absolute zero for an ideal gas
    1. Can be attained
    2. Impossible
    3. Does not exist at all
    4. None is corruct answer
    
    
15. Anemometer is used to measure
    1. Power
    2. Dynamo current
    3. Wind speed
    4. Atmosphere pressure
    
    
16. Unit of heat energy is
    1. Watt
    2. Degree Celcius
    3. Joule
    4. Erg
    
    
17. Tachometer is used to measure
    1. Power
    2. Dynamo current
    3. Atmosphere pressure
    4. Revolutions per minute
    
    
18. At what temperature Fahrenheit and Celcius give same reading
    1. 212 Degree
    2. 32 Degree
    3. -40 Degree
    4. 0 Degree
    
    
19. Radius of curvature of a spherical mirror is
    1. Equal to half of its focal length
    2. Equal to its focal length
    3. Twice its focal length
    4. None of the above
    
    
20. Radiator in a car serves to
    1. Start the car
    2. Cool the engine
    3. Heat up the engine
    4. Moderate the speed
    
    

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