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MCQs

Total Questions : 368 | Page 1 of 37 pages
Question 1. What is the change potential energy of a stone of mass 5 Kg that falls from a cliff 10 m high?
  1.    5 J
  2.    50 J
  3.    500 J
  4.    5000 J
 Discuss Question
Answer: Option C. -> 500 J
Answer: (c).500 J
Question 2. A fluid in supplied to a cliff 10 m high, what is the change in specific potential energy of fluid?
  1.    10 J/Kg
  2.    100 J/Kg
  3.    200 J/Kg
  4.    500 J/Kg
 Discuss Question
Answer: Option B. -> 100 J/Kg
Answer: (b).100 J/Kg
Question 3. What is the change in potential energy of a stone of mass 1 Kg thrown up with a Velocity 10 m/s and comes down?
  1.    0
  2.    10 J
  3.    100 J
  4.    500 J
 Discuss Question
Answer: Option A. -> 0
Answer: (a).0
Question 4. A fluid is supplied to a cliff 20 m high and comes down by 5 m, what is the change in specific potential energy of fluid?
  1.    100 J/Kg
  2.    150 J/Kg
  3.    200 J/Kg
  4.    250 J/Kg
 Discuss Question
Answer: Option B. -> 150 J/Kg
Answer: (b).150 J/Kg
Question 5. A ball is thrown up and someone catches it on the cliff, what is the change in potential energy?
  1.    Positive
  2.    Negative
  3.    Zero
  4.    Cannot say
 Discuss Question
Answer: Option A. -> Positive
Answer: (a).Positive
Question 6. Which of the following represents vaporization?
  1.    Change of vapor to liquid
  2.    Change of vapor to solid
  3.    Change of solid to vapor
  4.    Change of liquid to vapor
 Discuss Question
Answer: Option D. -> Change of liquid to vapor
Answer: (d).Change of liquid to vapor
Question 7. Vaporization starts at which point?
  1.    Dew point
  2.    Bubble point
  3.    Triple point
  4.    None of the mentioned
 Discuss Question
Answer: Option B. -> Bubble point
Answer: (b).Bubble point
Question 8. What is the point of saturation of a condensable vapor?
  1.    Bubble point
  2.    Boiling point
  3.    Triple point
  4.    Dew point
 Discuss Question
Answer: Option D. -> Dew point
Answer: (d).Dew point
Question 9. What is the vaporization temperature of water at standard conditions?
  1.    100°F
  2.    212°F
  3.    345°F
  4.    432°F
 Discuss Question
Answer: Option B. -> 212°F
Answer: (b).212°F
Question 10. Which of the following can definitely cause vaporization?
  1.    Heating a liquid
  2.    Heating a liquid at constant pressure
  3.    Cooling a liquid
  4.    Cooling a liquid at constant volume
 Discuss Question
Answer: Option B. -> Heating a liquid at constant pressure
Answer: (b).Heating a liquid at constant pressure

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