Suitable lubricant for 2-stroke engines is:
A.Crude petroleum lubricant
B.Vegetable lubricant
C.Mineral lubricant
D.None of these
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Say bolt universal Seconds’ is related with the:
A.Viscosity of oil
B.Density of oil
C.Gravity of oil
D.All are correct
If stroke: bore ratio of an engine increase, the thermal efficiency:
A.Increase
B.Decrease
C.Remains same
D.None of these
If the viscosity of fluid is high then flow will be:
A.Rapidly
B.Slowly
C.Irregular
D.All are correct
The best hydrocarbons from detonation point of view are:
A.Paraffin
B.Naphthenes
C.Aromatics
D.Olefins
The carburetor of an engine is used to mix fuel with:
A.Air
B.Water
C.Oil
D.None of these
The volume displaced by one-stroke of piston is:
A.Cylinder volume
B.Swept volume
C.Clearance volume
D.Total volume
Detonation refers to the:
A.Engine knocking
B.Engine speed
C.Engine efficiency
D.All are correct
The pushrod is located between:
A.Valve and rocker arm
B.Tappet and rocker arm
C.Tappet and camshaft
D.Valve and camshaft
Black smoke indicates:
A.Burning of libricant in the cylinder
B.Presence of water in fuel
C.Engine is overloaded
D.None of these
