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MCQs

Total Questions : 60 | Page 3 of 6 pages
Question 21. 10 mm of water (density = 1000 kg/m³) and 5 mm of a liquid has the same pressure drop, what is the density of liquid?
  1.    500 kg/m³
  2.    1000 kg/m³
  3.    1500 kg/m³
  4.    2000 kg/m³
 Discuss Question
Answer: Option D. -> 2000 kg/m³
Answer: (d).2000 kg/m³
Question 22. Which of the following is not a pressure measuring device?
  1.    Manometer
  2.    Barometer
  3.    Galvanometer
  4.    None of the mentioned
 Discuss Question
Answer: Option C. -> Galvanometer
Answer: (c).Galvanometer
Question 23. What is the pressure difference of the ends of a U-tube manometer filled with liquid (density = 10 kg/m³) the difference in the height of the liquid in the tubes is 5 cm?
  1.    5 N/m²
  2.    10 N/m²
  3.    15 N/m²
  4.    20 N/m²
 Discuss Question
Answer: Option A. -> 5 N/m²
Answer: (a).5 N/m²
Question 24. A hydraulic lever has input surface area 2 m², and output surface area 10 m², if the input force is 5 N, then what is the output force?
  1.    1 N
  2.    2 N
  3.    5 N
  4.    10 N
 Discuss Question
Answer: Option A. -> 1 N
Answer: (a).1 N
Question 25. Bernoulli’s Equation is the conservation of?
  1.    Energy
  2.    Momentum
  3.    Pressure
  4.    Mass
 Discuss Question
Answer: Option A. -> Energy
Answer: (a).Energy
Question 26. A Closed U-tube manometer has a gas at one end and vacuum at other end, if the height difference of the liquid (density = 10 kg/m³) in the manometer in 5 cm, what is the pressure of the gas?
  1.    10 N/m²
  2.    5 N/m²
  3.    2.5 N/m²
  4.    1 N/m²
 Discuss Question
Answer: Option B. -> 5 N/m²
Answer: (b).5 N/m²
Question 27. An object is dipped in water, if the weight of the object measured by spring balance is 10 g and buoyancy force acting on the object is 0.1 N then what is the actual mass of the object?
  1.    10 g
  2.    20 g
  3.    30 g
  4.    40 g
 Discuss Question
Answer: Option B. -> 20 g
Answer: (b).20 g
Question 28. An open end manometer is filled with a gas on one end and other end is open to atmosphere with height difference of liquid (density = 10000 Kg/m³) 10 cm, what is the pressure of gas?
  1.    1 atm
  2.    1.1 atm
  3.    1.2 atm
  4.    1.3 atm
 Discuss Question
Answer: Option B. -> 1.1 atm
Answer: (b).1.1 atm
Question 29. Archimedes’ principle describes which of the following quantities?
  1.    Pressure
  2.    Buoyancy
  3.    Velocity
  4.    Mass
 Discuss Question
Answer: Option B. -> Buoyancy
Answer: (b).Buoyancy
Question 30. A closed end manometer is filled with a gas on one end and other end is close with vacuum, height difference of liquid (density = 10000 Kg/m³) 25 cm, what is the pressure of gas?
  1.    0.1 atm
  2.    0.24 atm
  3.    0.36 atm
  4.    0.9 atm
 Discuss Question
Answer: Option B. -> 0.24 atm
Answer: (b).0.24 atm

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