Mechanical Engineering MCQs

A. Otto cycle
B. Diesel cycle
C. Dual cycle
D. Carnot cycle

A. More efficient
B. Less efficient
C. Equally efficient
D. Unperdictable

A. 1 sec
B. 0.1 sec
C. 0.01 sec
D. 0.001 sec

A. Using additives in the fuel
B. Engine derating i.e. reducing the maxi-mum flow of fuel
C. Increasing the compression ratio
D. Adherence to proper fuel specification

C. Transformer
B. D.c. generator
C. Capacitor
D. Magnetic circuit

A. Scavenging
B. Turbulence
C. Supercharging
D. Pre-ignition

A. Minimum temperature to which1 oil is heated in order to give off inflammable vapours in sufficient quantity to ignite momentarily when brought in contact with a flame
B. Temperature at which it solidifies or congeals
C. Temperature at which it catches fire without external aid
D. Indicated by 90% distillation temperature, i.e. when 90% of sample oil has distilled off

A. Naturally aspirated
B. Supercharged
C. Centrifugal pump
D. Turbo charger

A. Thermal efficiency
B. Speed
C. Power output
D. Fuel consumption

A. 6 : 1
B. 9 : 1
C. 12 : 1
D. 15 : 1