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Internal Combustion Engines

Internal Combustion Engines
The thermal efficiency of diesel engines on weak mixtures is

Higher
Unaffected
Dependent on other factors
Lower

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Internal Combustion Engines
The firing order in an I.C. engine depends upon

Arrangement of the cylinders
All of these
Number of cylinders
Design of crankshaft

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Internal Combustion Engines
Number of working strokes per min. for a four stroke cycle engine are _________ the speed of the engine in r.p.m.

One-half
Twice
Four-times
Equal to

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Internal Combustion Engines
The object of providing masked inlet valve in the air passage of compression ignition engines is to

Induce primary swirl
Enhance flow rate
Control air flow
Induce secondary turbulence

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Internal Combustion Engines
A 75 cc engine has following parameter as 75 cc

Cylinder volume
Lube oil capacity
Swept volume
Fuel tank capacity

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Internal Combustion Engines
In an internal combustion engine, the process of removing the burnt gases from the combustion chamber of the engine cylinder is known as

Supercharging
Polymerisation
Detonation
Scavenging

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