Quiz 233: General Science : Basic Concepts for All Exams

1. Which of the following causes the drop of water to be in spherical shape?
[A] Viscosity
[B] Air resistance
[C] Surface tension
[D] Temperature

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2. On a smooth glass surface , the drop of water spreads while the drop of mercury remains almost spherical. This proves that ________?
[A] Cohesive forces of mercury is more than adhesive forces with glass
[B] Cohesive force of water is less than cohesive forces of mercury
[C] mercury is a metal
[D] 1 & 2

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3. When two mercury drops are brought into contact they form a single bigger drop to get which of the following?
[A] Minimum volume
[B] Minimum surface area
[C] Maximum size
[D] Maximum surface area

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4. If water is heated , it vapor pressure will ______?
[A] Increase
[B] decrease
[C] first increase and then decrease
[D] nothing happens to vapor pressure

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5. Which among the following works while we wipe with a towel.?
[A] evaporation
[B] osmosis
[C] capillary action
[D] surface tension

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6. A transition from the solid to gas phase with no intermediate liquid stage is called?
[A] Evaporation
[B] Sublimation
[C] Adsorption
[D] Solid Phase extraction

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7. what happens when a ship enters a Sea from a river ?
[A] It rises
[B] It remains at the same level
[C] sinks a little
[D] None of the above

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8. When a barometer is taken down in a coal mine , which of the following happens with the Mercury level in the tube?
[A] rises
[B] falls
[C] falls then rises
[D] remains unaltered

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9. Which among the following character of mercury makes it suitable to use in barometers instead of water?
[A] Low density and low vapor pressure
[B] High density and high vapor pressure
[C] Low density and good conductor of heat
[D] High density and low vapor pressure

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10. Which among the following is in action in the process of a liquid rising in the syringe when the piston is pulled up?
[A] Capillary action
[B] surface tension
[C] atmospheric pressure
[D] cohesive forces

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Comments

  • Anonymous
    Reply

    Its the first time i got all 20 correct..

  • Anonymous
    Reply

    ques 18 answer is missing

  • Anonymous
    Reply

    answer for 5 and 18 are missing

  • sandeep
    Reply

    sir answers to some questions are missin plz provide d answers

  • Deepak
    Reply

    ans to no 5 is NONE
    and ans to 18 is first law..(due to inertia of motion the bicycle keeps on moving if the frictional force is ZERO)

  • zenithme4u
    Reply

    a good material