Maharashtra AMVI Paper 2002 -Automobile Engineering

MPSC Assistant Motor Vehicle Inspector Automobile Engineering Paper 2002

Which one is the low-pressure steam generator?
(a) Benson steam generator
(b) Loeffler steam generator
(c) Volex steam generator
(d) None of these

Compression ratio for compressor is always
(a) more than 1.0
(b) less than 1.0
(c) equal to 1.0
(d) Zero

In a compressor, the clearance volume is kept minimum, because it affects
(a) isothermal efficiency
(b) compressor efficiecny
(c) volumetric efficiency
(d) None of the above

The performance of a reciprocating compressor is expressed by
(a) adiabatic work
(b) isothermal work
(c) isothermal work/ indicated work
(d) None of the above

Air conditioning controls
(a) temperature only
(b) humidity only
(c) motion of air and humidity
(d) All the above three factors

In a multi-stage compression with intercooling, work required is
(a) reduced
(b) increased
(c) not changed
(d) None of the above

In a double acting compressor, the air is compressed
(a) in a single cylinder
(b) in two cylinders
(c) in two stages on one side
(d) in a single cylinder on both sides

In a compressor, the volume of air sucked during the suction stroke is known as
(a) free air delivered
(b) swept volume
(c) compressor capacity
(d) None of the above

The ratio of delivery pressure to suction pressure of air is called
(a) volumetric efficiency
(b) expansion ratio
(c) compression efficiency
(d) compression ratio

In a two-stage air compressor, an intercooler is placed
(a) before L.P cylinder
(b) after H.P cylinder
(c) in between L.P and H.P cylinder
(d) None of the above

1 ton of refrigeration is the
(a) mass of refrigerant flow per second
(b) mass of refrigeration unit
(c) rate of ice formed per second
(d) heat extraction at the rate of 3.5 kJ per second

A house-hold refrigerator works on
(a) vapour absorption cycle
(b) vapour compression cycle
(c) Carnot cycle
(d) Bell-Coleman cycle

The voltage required to produce a spark between the spark ponts in spark plug is in the rage
(a) 2 to 4 kV
(b) 5 to 5.5l kV
(c) 6 to 10 kV
(d) 12 to 15 kV

The ratio of heat extracted from refrigerant to work supply is called
(a) coefficient of performance of heat pump
(b) coefficient of performance of refrigerator
(c) refrigeration efficiency
(d) relative coefficient of performance

What is the refrigerant used in a house-hold refrigerator?
(a) Freon 22
(b) Feon 11
(c) Freon 12
(d) NH3