The API gravity of water is:
A.8
B.10
C.15
D.20
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The steam engine is
A.Single stroke engine
B.Two stroke engine
C.Four-stroke engine
D.None of these
Lublication reduces:
A.Wear between two rubbing surfaces
B.Friction effect in moving parts
C.Heat from moving part
D.All are correct
For engine parts, a type of lubrication system adopted is:
A.Splash lubrication
B.Pressure lubrication
C.Petrol lubrication
D.All are correct
The arrangements of valves used in the engine may be:
A.I-Head type
B.T-head type
C.L-head type
D.All are correct
The specific gravity of petrol at 15? is:
A.0.73
B.0.82
C.0.9
D.0.85
The thermal efficiency of diesel engine varies between:
A.25 and 32 per cent
B.32 and 38 per cent
C.32 and 40 per cent
D.40 and 45 per cent
General formula of olefins is:
A.Cn H2n
B.Cn Hn
C.Cn H2n+2
D.Cn H2n-2
The carburetor employed on most of tractor engines is:
A.Down draft
B.Middle draft
C.Updraft
D.None of these
The gasket sealing is the most difficult problem at:
A.Head
B.Oil pan
C.Intake manifold
D.Timing cover
