In a S.I. engine the intake valve closes
A.At BDC
B.At TdDC
C.35? to 80? after BDC
D.25? to 80? before BDC
E.10? to 20? before
Category: Automobile Engineering Mcqs
Which one of the following is independent of fuel constituents, combustion chamber design, temperature and pressure of compressed charge
A.Pinking
B.Pre-ignition
C.Knocking
D.none of the above
Which one of the following is mounted between the engine and gear box?
A.Propellor shaft
B.Differential gear
C.Reduction gear
D.Clutch
E.None of the above
The need for installing new piston rings is determined by checking
A.The surface of the piston ring
B.The gap between the ends of the ring
C.The clearance between cylinder and piston
D.The clearance between cylinder and piston rings
E.The clearance between piston and piston rings
Starting motor current may be around
A.0.1 A
B.0.5 A
C.1. A
D.25 A
E.35 A
Which part of the engine is directly driven by the starting motor?
A.Flywheel
B.Camshaft
C.Crankshaft
D.Pulley
E.Any of the above
In case of petrol engine, pre-ignition of the charge during compression stroke is
A.not possible
B.possible
C.possible during power stroke
D.none of the above
In spark plug the gap between the electrodes is
A.10 mm
B.around 5 mm
C.around 1 mm
D.less than 1 mm
Highest useful compression ratio is an indicator of
A.knocking of a fuel at a particular pressure
B.knocking of a fuel at a particular temperature
C.knocking of a fuel in a particular engine
D.knocking of a fuel under specified conditions in a standard engine
In a Diesel engine the fuel injection pressure is usually in the range
A.100 to 170 atm
B.60 to 70 atm
C.30 to 40 atm
D.20 to 25 atm
E.10 to 15 atm
