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Department of Mechanical Engineering
TE 11
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Question 1 : The ratio of the B.H.P to the heat energy of the fuel supplied during the same interval of time is called
Option-1 :brake thermal efficiency
Option-2 :indicated thermal efficiency
Option-3 :volumetric efficiency
Option-4 :relative efficiency
Question 2 : The ratio of the I.H.P. to the heat energy of the fuel supplied during the same interval of time is called
Option-1 :brake thermal efficiency
Option-2 :indicated thermal efficiency
Option-3 :volumetric efficiency
Option-4 :relative efficiency
Question 3 : For a four stroke engine, the ratio of the volume of the charge admitted to the engine cylinder during suction stroke at N.T.P. to the swept volume of the piston is called
Option-1 :brake thermal efficiency
Option-2 :indicated thermal efficiency
Option-3 :volumetric efficiency
Option-4 :reletive efficiency
Question 4 : The ratio of the indicated thermal efficiency to the corresponding ideal air standard efficiency is called
Option-1 :brake thermal efficiency
Option-2 :indicated thermal efficiency
Option-3 :volumetric efficiency
Option-4 :relative efficiency
Question 5 : In spark ignition engines, decreasing the coolant temperature the possibility of knock will
Option-1 :increase
Option-2 :decrease
Option-3 :not take place
Option-4 :none of the above
Question 6 : In spark ignition engines, reducing the compression ratio, the possibility of knock will
Option-1 :increase
Option-2 :decrease
Option-3 :not take place
Option-4 :none of the above
Question 7 : Increasing the speed of the engine, in a spark iginition engine, the possibility of knock will (when a fixed octane rating fuel is used)
Option-1 :increase
Option-2 :decrease
Option-3 :not take place
Option-4 :none of the above
Question 8 : The power available at the shaft of an I.C engine is known as brake horse power and is equal to
Option-1 :total power produced _frictional horse power
Option-2 :net I.H.P - frictional horse power
Option-3 :net I.H.P.+frictional power
Option-4 :net I.H.P/frictional horse power
Question 9 : The four operation i.e.,suction, compression, expansion and exhaust in a four stroke cycle engine, are completed in the number of revolutions of the crankshaft equal to
Option-1 :one
Option-2 :two
Option-3 :three
Option-4 :four
Question 10 : In a two stroke engine, the working cycle is completed in the number of revolution of the crank shaft equal to
Option-1 :one
Option-2 :two
Option-3 :three
Option-4 : four
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