79.

80.

81.

82.

83.

84.

85.

86.

065/23

When the power transmitted in a belt drive is maximum, then

A) (1/2) of the maximum tension is absorbed as centrifugal tension

8) (1/3) of the maximum tension is absorbed as centrifugal tension

C) (1/4) of the maximum tension is absorbed as centrifugal tension
)

D) None of these

Herringbone gears are
A) Spiral gears B) Single helical gears
C) Double helical gears D) Bevel gears

In an IC engine the material/s for the inlet valve is/are
A) Plain Nickel steel B) Nickel-Chrome steel
C) Chrome Molybdenum steel D) (A), (B) and (C) are correct

In a fuel injector which type of nozzle/s is/are used for pre-combustion and for air
cell engines ?

A) Single hole B) Multi hole
C) Pintle type D) Both (A) and (B)

In four cylinder in line engine the best firing order/s is/are
A) Either 1-2-4-3 or 1-3-4-2 B) Either 1-3-4-2 or 1-4-3-2
C) Either 1-2-4-3 or 1-4-3-2 D) Both (A) and (B)

The difference of the work done in expelling the exhaust gases and the work done
by the fresh charge during suction stroke in an IC engine is called

A) Exhaust blow down loss B) Pumping loss
C) Rubbing friction loss D) None of these

Factors which favour the elimination of knock in the C | engine are

A) Short ignition delay period and low self ignition temperature of the fuel
B) Long ignition delay period and low self ignition temperature of the fuel
C) Long ignition delay period and high self ignition temperature of the fuel
D) Short ignition delay period and high self ignition temperature of the fuel

Externally fired boiler is
A) Lancashire boiler B) Cochran boiler
C) Cornish boiler D) Babcock and Wilcox boiler