1. Types of tyre are
(A) Tube type and tubeless
(B) Solid and tubeless
(C) Air and Pneumatic
(D) Split rim and drop center
2. Tubeless tyre is better than tube tyre because
(A) Slow air leakage
(B) Better fuel efficiency
(C) Less chances of running flat
(D) All of these
3. Which number shows Aspect Ratio in 175/65 R-14 82-S?
(A) 175
(B) 65
(C) 14
(D) 82
4. When comparing radial tyre and bias tyre, how is bias tyre better than radial tyre?
(A) Longer life
(B) Lower rolling resistance
(C) Smoother ride at low speed
(D) None of these
5. If the cords of ply wave 30° to 38° from the center line of tyre, this type of tyre is known as
(A) Bias ply
(B) Radial ply
(C) Run flat tyre
(D) Space saver tyre
6. Part of tyre which touches the rim is called
(A) Bead
(B) Tread
(C) Wall
(D) Sip
7. Distance between center line of rim and mounting face of hub is called
(A) Wheel offset
(B) Wheel width
(C) Wheel diameter
(D) Aspect ratio
8. If the mounting face of rim is outside the center line of rim then offset is known as
(A) Positive
(B) Negative
(C) Zero
(D) Camber
9. If the mounting face of rim is inside the center line of rim then offset is known as
(A) Positive
(B) Negative
(C) Zero
(D) Camber
10. If the cords of ply wave perpendicular to center line of tyre, this type of tyre is known as
(A) Bias ply
(B) Radial ply
(C) Run flat tyre
(D) Space saver tyre
11. Part of tyre that connects with the road surface is known as
(A) Base
(B) Tread
(C) Bead
(D) Grooves
12. Problem of unbalanced tyre which shows during driving is
(A) Makes large noise when its heavy point hits the road surface
(B) Deflects in the vehicle’s longitudinal direction
(C) Bounces vertically or deflects from side to side
(D) All of the above
13. Aspect Ratio of tyre means ratio between
(A) Section width to section height
(B) Section height to section width
(C) Wheel diameter to section height
(D) Wheel diameter to section width
14. Basic purpose of tyre is
(A) Grip the road and provide good traction
(B) Substitute for spring
(C) Act as brake
(D) None of these
15. At which temperature inflation pressure of tyre should be checked?
(A) 20°C
(B) 25°C
(C) 35°C
(D) Ambient temperature
16. Which part of tyre flexes during driving?
(A) Bead
(B) Side wall
(C) Shoulder
(D) Tread
17. Bead wire is made of
(A) Steel
(B) Copper
(C) Zinc
(D) Aluminum
18. In case of under inflation which parts of tyre tread wear faster?
(A) Near the center
(B) Near the edges
(C) In the lateral direction
(D) In the cross direction
19. What is the purpose of tyre rotation?
(A) Avoid ply separation
(B) Equalize wear
(C) Get better ride
(D) None of these
20. What is the meaning of vulcanizing?
(A) Heating rubber under pressure
(B) Spraying with special paint
(C) Melting rubber while stirring it
(D) None of these
21. Symptoms of unbalanced tyre are
(A) Hard steering and hard ride
(B) Poor acceleration and hard steering
(C) Steering wheel vibration and uneven tyre wear
(D) Poor acceleration and reduced fuel efficiency