Quiz  /  Fluid Mechanics Class 10 MCQ Questions With Answers

  • 1. 
    The pressure in a liquid at a given depth is...

  • surface tension
  • gas pressure
  • hydrostatic
  • hydraulic

  • 2. 
    For water...

  • 1 mL = g/mL
  • 1 mL = 1 g
  • 1 L = 1 G
  • 1 mL = 1 L

  • 3. 
    If an object weighing 50.0 N displaces a volume of water with a weight of 10.0 N, what is the buoyant force on the object?

  • 10 N
  • 60 N
  • 40 N
  • 20 N

  • 4. 
    An object submerged in a fluid experiences pressure

  • -on all sides
  • from above the object
  • from below object

  • 5. 
    What device measures in mmHg?

  • baromometer
  • thermometer
  • graduated cylinder
  • sphygomometer

  • 6. 
    Water pressure increases as depth increases.

  • True
  • False

  • 7. 
    What is the principle of flotation?

  • floating objects displace a fluid equal to the weight of the fluid displaced
  • floating objects displace a fluid equal to their own weight
  • floating objects exert an upward buoyant force

  • 8. 
    What is the pressure in the hydraulic fluid?

  • 1210 N
  • 484 N/m2
  • 8000 N
  • 3025 N/m2

  • 9. 
    An object will sink in a fluid if

  • gravity is stronger than buoyant force
  • buoyant force is stronger than gravity
  • a fluid can be a gas or a liquid
  • if the object is solid

  • 10. 
    If a hydraulic system has 1000 N applied to the input piston and has an area of 81 cm2, what is the pressure?

  • 12.35 Pa
  • 12,346 Pa
  • 1235 Pa
  • 123,457 Pa

  • 11. 
    If there is a leak in a hydraulic or pneumatic system, the pressure will increase.

  • True
  • False

  • 12. 
    The pressure caused by gravity pulling on the atmosphere.

  • atmospheric pressure
  • buoyant force
  • pascal pressure
  • density pressure

  • 13. 
    The deeper a person dives in the ocean the ___ pressure felt by the diver.

  • -more
  • less

  • 14. 
    The air pressure for a certain tire is 109kPa. What is the pressure in atmospheres?

  • 813 atm
  • 99.82 atm
  • 471.2 atm.
  • 1.08 atm

  • 15. 
    A system that multiplies force by transmitting pressure from a small surface area through a confined fluid to a larger surface area.

  • hydraulic system
  • archimedes system
  • pressure system
  • bernoulli effect

  • 16. 
    A material that flows is a

  • -fluid
  • liquid
  • pressure
  • compression

  • 17. 
    If an object sinks in a fluid, the weight of the object is

  • greater than the weight of fluid displaced by the object
  • less than the weight of fluid displaced by the object
  • equal to the weight of the fluid displaced by the object
  • obeying the flotation principle

  • 18. 
    The SI unit of pressure

  • Newton
  • Gram
  • Pascal
  • Pound

  • 19. 
    What is the force up on the mailbox?

  • 1210 N
  • 8000 N
  • 7744 N
  • 5655 N

  • 20. 
    How can a water strider walk on a pond?

  • hydrostatic pressure
  • buoyancy
  • surface tension of water
  • density
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