21-In tubular type radiator cores:

(A) Air flows through tubes and coolant passes around

(B) Coolant passes through tube and air passes around

(C) Air and coolant passes through tubes

(D) Air and coolant passes around tubes

22-The volatile liquid that filled in bellows type thermostat is:

(A) Ethylene glycol

(B) Freon

(C) Acetone

(D) Glycerene

23-What operation has to be done on the ends of brake pipe to prevent leakage?

(A) Purging

(B) Reaming

(C) Counter sinking

(D) Flaring

24-The brake pads of disc brakes are returned by:

(A) Retractor spring

(B) Rubber seal ring

(C) Shoe return spring

(D) Caliper

25-The part of hydraulic brake system which actuates brakes shoes directly:

(A) Master cylinder

(B) Push rod

(C) Wheel cylinder

(D) Brake pedal

26-The type of jack with diamond shaped frame having a nut on one side and sleeve on other side

(A) Tripod

(B) Trolley type

(C) Scissor type

(D) Bottle type

27-Which of the following is a finishing operation for machined components?

(A) Broaching

(B) Cyaniding

(C) Vulcanization

(D) Honing

28-In Semi floating type rear axle, the bearing is located

(A) On the axle and inside axle casing

(B) On the axle casing and inside the hub

(C) On the axle and inside the hub

(D) None of the above

29-The tool which is used to remove gear, bearing, wheels and pulleys from their attaching components are:

(A) Screw driver

(B) Monkey plier

(C) Pullers

(D) Hammer

30-The type of gear wheels used in sliding mesh gear box is:

(A) Helical gear

(B) Double helical gear

(C) Spur gear

(D) Spiral gear

ANSWERS:

21-(B), 22-(C), 23-(D), 24-(A), 25-(C), 26-(C), 27-(D), 28-(A), 29-(C), 30-(C)