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. Awankel engine is
A) An internal combustion engine
B) An external combustion engine
C) A reciprocating engine
D) A steam powered engine

. In a four stroke four cylinder inline engine
A) One working stroke per two crankshaft revolutions obtained
B) Two working strokes per two crankshaft revolutions obtained
C) Two working strokes per one crankshaft revolution obtained
D) Four working stroke per one crankshaft revolution obtained

. Ina compression ignition engine
A) Fuel is injected into compressed air in the inlet manifold
B) Air is mixed with fuel outside the cylinder during suction stroke
C) The air is mixed with fuel before it enters the cylinder
D) The air is mixed with fuel after it enters the cylinder

. The valve stem to guide clearance is measured by using
A) Feeler gauge B) Dial gauge
C) Outside micrometer D) Telescopic gauge

. The first cylinder in a four stroke four cylinder inline engine having the firing order
1-3-4-2 is in power stroke. The cylinder no. 4 will be in

A) Suction stroke B) Compression stroke
C) Power stroke D) Exhaust stroke

. If the thermostat valve is always closed, it will lead to
A) Higher thermal efficiency and low engine output
B) High vapourisation of the fuel in the engine
C) Quick engine warm up and overheating of engine
D) Lower engine temperature and lower efficiency

. The advantage of an expansion tank is
A) The radiator does not need a pressure cap
B) The presence of air bubbles in the radiator can be avoided
C) No need to top up the coolant
D) No need of fan in the cooling system