Mechanical Engineering MCQs

A. 9 : 1
B. 12 : 1
C. 15 : 1
D. 18 : 1

A. Minimum temperature to which 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. It catches fire without external aid
D. Indicated by 90% distillation temperature i.e., when 90% of sample oil has distilled off

A. Controlling valve opening/closing
B. Governing
C. Injection
D. Carburettion

A. sea 30
B. sae 4£
C. sae 50
D. sae 70

A. Chemically correct mixture
B. Lean mixture
C. Rich mixture for idling
D. Rich mixture for over loads

A. Flat
B. Contoured
C. Slanted
D. Depressed

A. Supercharger
B. Centrifugal pump
C. Natural aspirator
D. Movement of engine piston

A. A supercharger
B. A centrifugal blower
C. A vacuum chamber
D. An injection tube

A. Above the piston
B. Below the piston
C. Between the pistons
D. There is no such criterion

A. Graph paper
B. Process chart
C. Planning chart
D. Stop watch