The petrol engines are also known as spark ignition (S.I.) engines compression i

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spark ignition (S.I.) engines

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1. A compound steam engine in which piston rods of high pressure and low pressure cylinders are attached to two different cranks set at 90� to each other, is called
Options
A. receiver type compound engine
B. Tandem type compound engine
C. Woolf type compound engine
D. both (a) and (b)

2. If two bodies having masses m₁ and m₂ (m₁>m₂) have equal kinetic energies, the momentum of body having mass m₁ is __________ the momentum of body having mass m₂.
Options
A. equal to
B. less than
C. greater than

3. Scheduling
Options
A. prescribes the sequence of operations to be followed
B. determines the programme for the operations
C. is concerned with starting of processes
D. regulates the progress of job through various processes

5. The coefficient of restitution for elastic bodies is one.
Options
A. Correct
B. Incorrect

7. The ratio of the workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam is called
Options
A. blading efficiency
B. nozzle efficiency
C. stage efficiency
D. mechanical efficiency

10. The object of supercharging the engine is
Options
A. to reduce mass ofthe engine per brake power
B. to reduce space occupied by the engine
C. to increase the power output of an engine when greater power is required
D. all ofthe above

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