Concept of Pressure Explained with MCQs | Pressure MCQs | Hindi | SSC UPSC RAILWAY CDS PCS BANKPO BANKCLERK ARMY NAVY

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Q1. It is difficult to cut things with a blunt knife because

  1. the pressure exerted by knife for a given force increases with increase in bluntness
  2. A sharp edge decreases pressure exerted by knife for a given force
  3. a blunt knife decreases the pressure for a given force
  4. a blunt knife decreases the area of intersection
Answer -3

Q2. The pressure in a liquid at a given depth below the surface

  1. is same in all directions
  2. is always exerted downward
  3. equals the total weight of liquid above the depth
  4. depends upon the amount of liquid below the depth
Answer -1

Q3. The pressure at the bottom of a liquid tank does not depend on

  1. density of the liquid
  2. acceleration due to gravity
  3. area of the liquid surface
  4. height of the liquid
Answer -3

Q4. The pressure of the earth’s atmosphere at sea level is due to the

  1. heating of the atmosphere by the sun
  2. fact that most living things constantly breathe air
  3. evaporation of water from the seas and oceans
  4. gravitational attraction of the earth for the atmosphere
Answer -4

Q5. The rate of leak from a hole in a tank is

  1. more if situated near the bottom
  2. more if situated near its top
  3. independent of its height from the bottom
  4. more at midway between top and bottom
Answer -1

Q6. An ideal liquid flows through a horizontal tube of variable diameter.

The pressure is lowest where the

  1. velocity is lowest
  2. velocity is highest
  3. diameter is largest
  4. None of the above
Answer -2

Q7 . If we want to calculate the pressure of a  liquid at the bottom of vessel, the quantity which is not required to determine it, is of a liquid

  1. surface area of the bottom of the vessel
  2. height of the liquid column
  3. density of the liquid
  4. acceleration due to gravity at the bottom of the vessel
Answer -1

Q8. The operating principle of a hydraulic press is

  1. Boyle’s law
  2. Pascal’s principle
  3. Archimedes’ principle
  4. Newton’s law of gravitation
Answer -2

Q9. Pressure at any point of a liquid increases with

  1. density of the liquid
  2. acceleration due to gravity
  3. depth of the point from the free surface
  4. All of the above
Answer -4

Q10 . Which one of the following is used by the mountaineers and the pilots to measure pressure?

  1. Simple barometer
  2. Fortin barometer
  3. Manometer
  4. Aneroid barometer
Answer -4

Q11. A gradual increase in the barometric height indicates which one of the following?

  1. Coming of rain
  2. Coming of a storm
  3. Starting of cold weather
  4. Coming of fair weather
Answer -4

Q12.What is the unit of pressure?

  1. N/m2
  2. N/kg2
  3. N/cm2
  4. None of these
Answer -1

Q13 Pressure Cooker cooks faster because

  1. boiling point decreases with rise of pressure
  2. it cooks the food at low pressure
  3. higher temperature is attained for cooking
  4. the material of the cooker is a good conductor
Answer -3

Q14 Why is it difficult to breathe at higher altitudes?

  1. Due to low air pressure
  2. Due to low temperature
  3. Due to ozone
  4. Due to high humidity
Answer -1

Q15. With Increase in weight of object the pressure

  1. Increases
  2. Decreases
  3. Remain Unchanged
  4. None of these
Answer -1

Q16 . To Increase pressure

  1. Area of contact increase
  2. Area of contact decrease
  3. Area remain unchanged
  4. None of above
Answer -2

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