In actual practice, the exhaust value of a four stroke I.C. engine should close
A.exactly at the end of expansion stroke
B.slightly before the end of exhaust stroke
C.slightly after the end of exhaust stroke
D.none of the above
Category: Automobile Engineering Mcqs
Dirt or gum in fuel nozzle or jets may cause
A.Excessive fuel consumption
B.Lack of engine power
C.Smoky black exhaust
D.White exhaust
E.Uneven engine speed
In an automobile the probable cause for dragging brakes could be
A.Lack of clearance
B.Drums out of round
C.Loose wheel bearings
D.Weak retracting spring
E.Any of the above
Air supply in case of Diesel engines is usually
A.10 percent deficient
B.Stoichometric
C.5 to 10 percent surplus
D.15 to 20 percent surplus
E.About 40 percent surplus
In order to engage securely and prevent dragging the clearance between release bearing and release collar in a clutch is usually
A.2 – 3 mm
B.10 – 15 mm
C.20 – 25 mm
D.30 – 35 mm
E.40 – 50 mm
A spark voltage needs a voltage of
A.12 V
B.24 V
C.220 V
D.440 V
E.5000 – 15000 V.
The turbulence in diesel engine ensures to
A.Increase the volumetric efficiency
B.Increase the compression pressure
C.Bring the fuel quickly in contact with air
D.Increase the fuel consumption
E.Reduce the engine vibrations
To avoid chances of maisalignment the bearing generally used is
A.Radial bearing
B.Axial bearing
C.Taper roller bearing
D.Self-aligning bearing
E.Double row ball bearing
In commercial vehicle layouts engine is located forward, rear or under floor mainly to
A.Better utilise the space
B.Increase fuel economy
C.Have better weight distribution
D.Reduce the weight of chassis
E.Minimize the tendency to over turn
The operation of removing trapped air from hydraulic braking system is known as
A.Trapping
B.Tapping
C.Pressurization
D.Bleeding
E.Clearing
