Top 50+ Solved Supercharging andTurbocharging of IC Engine MCQ Questions Answer
Q. The centrifugal type supercharger is preferable only for
a. low speeds
b. high speeds
c. high pressures
d. none of the above
Q. The advantage of Root's supercharger is
a. big pressure
b. minimum maintenance
c. consumes less power
d. occupies less space
Q. Supercharging air compressor is driven by
a. exhaust gas turbine
b. engine itself
c. separate electrical motor
d. none of the above
Q. If turbochargers compressor is driven by
a. exhaust gas turbine
b. engine itself
c. separate electrical motor
d. none of the above
Q. Cooling after compression is necessary to
a. increase the density of air
b. reduce engine operating temperatures
c. both (a) and (b)
d. increase exhaust temperature
Q. Volumetric efficiency of supercharged engine is
a. between 100 - 110%
b. between 90 - 100%
c. between 80 - 90%
d. between 70 - 80%
Q. Supercharging is normally done in
a. racing cars
b. marine engines
c. automotive diesel engines
d. none of the above
Q. Compared to engine driven supercharger the exhaust driven super charger is
a. easy to handle
b. supplies more air
c. utilizes the exhaust energy of the engine
d. matching with engine is easy
Q. Types of supercharger are
a. reciprocating type
b. gear type
c. centrifugal type
d. none of the above
Q. The operation of forcing additional air under pressure in the engine cylinder is known as
a. scavenging
b. turbulence
c. supercharging
d. pre-ignition
Q. Supercharging is essential in
a. diesel engines
b. gas turbines
c. petrol engines
d. aircraft engines.
Q. The output of a diesel engine can be increased without increasing the engine revolution orsize in following way
a. feeding more fuel
b. increasing flywheel size
c. heating incoming air
d. supercharging.
Q. Supercharging is the process of
a. supplying the intake of an engine with air at a density greater than the density of the surrounding atmosphere
b. providing forced cooling air
c. injecting excess fuel for raising more load
d. supplying compressed air to remove combustion products fully
Q. Pick up the wrong statement about supercharging
a. supercharging reduces knocking in diesel engines
b. there can be limited supercharging in petrol engines because of detonation
c. supercharging at high altitudes is essential
d. supercharging results in fuel economy
Q. The reason for supercharging in any engine is to
a. increase efficiency
b. increase power
c. reduce weight and bulk for a given out-put
d. effect fuel economy