Q.1
What is the purpose of the supercharger?
  • a) To increase the pressure
  • b) To increase the speed of the engine
  • c) To increase the gear ratio
  • d) To increase the cooling rate
Q.2
Which of the following is not the effect of supercharging?
  • a) Improved cold starting
  • b) Increased gas loading
  • c) Reduced exhaust smoke
  • d) Increased thermal loads
Q.3
When the supercharger draws power from engine exhaust gases with the help of gas turbine, what is the supercharger called?
  • a) Turbocharger
  • b) Vane type supercharger
  • c) Root’s supercharger
  • d) Centrifugal type supercharger
Q.4
Which type of supercharger is used at low speeds?
  • a) Centrifugal type supercharger
  • b) Vane type supercharger
  • c) Root’s supercharger
  • d) Twin-screw supercharger
Q.5
Which of the following is the advantage of Root’s supercharger?
  • a) It occupies less space
  • b) It consumes less power
  • c) It has minimum maintenance
  • d) It produces high pressure
Q.6
How does the supercharger increase power output?
  • a) By increasing the charge pressure
  • b) By increasing the charge temperature
  • c) By increasing the speed of the engine
  • d) By increasing the quantity of fuel admitted
Q.7
What is used to run the supercharging air compressor?
  • a) Separate electric motor
  • b) Engine
  • c) Exhaust gas turbine
  • d) Gear pump
Q.8
Why is there a need for charge cooling?
  • a) To increase the engine operating temperature
  • b) To reduce the engine operating temperature
  • c) To decrease the density of air
  • d) To increase the exhaust temperature
Q.9
What is the brake power if the swept volume is 3.5 liters, brake mean effective pressure isbars, and speed isrpm?
  • a) 175 kW
  • b) 17.5 kW
  • c) 1.75 kW
  • d) 1750 kW
Q.10
The turbocharger makes use of the power from the engine so that it increases the pressure.
  • a) True
  • b) False
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