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- Question
Supercharging is the process of supplying the intake air to the engine cylinder at a density __________ the density of the surrounding atmosphere.
Options- A. equal to
- B. less than
- C. greater than
- Correct Answer
- greater than
- 1. The unit of power in S.I. units is
Options- A. horsepower
- B. joule
- C. watt
- D. kg-m Discuss
- 2. According to Avogadro's law, the density of any two gases is __________ their molecular masses, if the gases are at the same temperature and pressure.
Options- A. equal to
- B. directly proportional to
- C. inversely proportional to Discuss
- 3. A fluid which obeys the Newton's law of viscosity is termed as
Options- A. real fluid
- B. ideal fluid
- C. newtonian fluid
- D. non-newtonian fluid Discuss
- 4. The property of a liquid which enables it to resist tensile stress is called its surface tension.
Options- A. Agree
- B. Disagree Discuss
- 5. In the middle part of the blast furnace (zone of absorption), the temperature is
Options- A. 400° to 700°C
- B. 800°C to 1000°C
- C. 1200°C to 1300°C
- D. 1500°C to 1700°C Discuss
- 6. The amount of heat required to raise the temperature of the unit mass of gas through one degree at constant volume, is called
Options- A. specific heat at constant volume
- B. specific heat at constant pressure
- C. kilo Joule
- D. none of these Discuss
- 7. The critical pressure gives the velocity of steam at the throat
Options- A. equal to the velocity of sound
- B. less than the velocity of sound
- C. more than the velocity of sound
- D. none of these Discuss
- 8. In velocity compounding of an impulse turbine, the expansion of steam takes place in a nozzle or a set of nozzles from the boiler pressure to condenser pressure.
Options- A. True
- B. False Discuss
- 9. Which of the following is the correct statement?
Options- A. All the reversible engines have the same efficiency.
- B. All the reversible and irreversible engines have the same efficiency.
- C. Irreversible engines have maximum efficiency.
- D. All engines are designed as reversible in order to obtain maximum efficiency. Discuss
- 10. An open tank containing liquid is made to move from rest with a uniform acceleration. The angle 0 which the free surface of liquid makes with the horizontal is such that (where a = Horizontal acceleration of the tank, and g = Acceleration due to gravity)
Options- A. tan ? = a/g
- B. tan ? = 2 a/g
- C. tan ? = a/2g
- D. tan ? = a2/2g Discuss
More questions
Correct Answer: watt
Correct Answer: directly proportional to
Correct Answer: newtonian fluid
Correct Answer: Agree
Correct Answer: 800°C to 1000°C
Correct Answer: specific heat at constant volume
Correct Answer: equal to the velocity of sound
Correct Answer: True
Correct Answer: Irreversible engines have maximum efficiency.
Correct Answer: tan ? = a/g
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