25,

26,

27

28,

29,

30,

31,

32,

33,

34,

How many cells are used in 12 volt automobile battery ?
(ಹ) 3 ൫ 4 © 8 യു 6

If the air fuel mixture ignites before the spark takes place at spark plug is called :
(മ) Penetration (8) Detonation (ಲ) Oxidization (D) Pre-ignition

What is the reason behind using aluminium alloy to make cylinder blocks ?
(മ) Light in weight and has good heat dissipation

(8) Low in material cost

(9) Good look in colour

(D) Heavy weight and poor heat dissipation

The thermal efficiency of the 4 stroke engine is :
(A) Low (3) Medium (9) High (D) Normal

The inlet valve generally spins about 15 degree before TDC is called :
(ಹಿ) Valve lag (B) Valve lead
(C) Valve twist (D) None of the above

In a 4 stroke cycle engine each cylinder has :
(ಹಿ) Two parts (8) Four valves (ಲ) One valve (D) Two valves

The operation of removing trapped air from the hydraulic brake system is known as :
(ಹ) Exhausting (B) Trapping (€) Bleeding (D) Ventilation

When a vehicle is moving on straight level road and the resistance affecting both the driving
wheels is the :

(A) Lower (8) Higher (ಲ) Normal (D) Same

Which of the following is not a part of differential gear box 7
(ಹ) Star pinion (8) Axle shaft (ಲ) Drivepinion (D) Crank shaft

The shape of reflector used for automobile head lamp is :
(ಹ) ಲಯ (8) Spherical (ಲ) Parabolic (D) Elliptical

068/2018 6 A