Download PDF
Free download in PDF Automobile Engineering Multiple Choice Questions(MCQs) with Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
61
Of the four tyres on a car, the one that wears most is the
[A]
Right front tyre
[B]
Right rear tyre
[C]
Left front tyre
[D]
Left rear tyre
62
For a through inspection a tyre should be
[A]
On the car
[B]
On the wheel
[C]
Off the wheel
[D]
Inflated
63
The radius of a pneumatic tyre is
[A]
The radius of unloaded fully inflated tyre
[B]
The height of centre of tyre from the ground when it is loaded
[C]
Imaginary radius found by measuring the distance per revolution of the loaded tyre
[D]
It is fixed radius, based on the dimensions of the tyre
Answer: The radius of unloaded fully inflated tyre
64
During braking the brake shoe is moved outward to press against the
[A]
Wheel piston or cylinder
[B]
Brake lining
[C]
Brake drum or disc
[D]
Wheel rim or axle
Answer: Brake drum or disc
65
Movement of the brake pedal forces brake fluid from the master brake cylinder through brake lines and into the
[A]
Brake shoes
[B]
Wheel cylinders
[C]
Brakes cables
[D]
Pedal rod
66
The working fluid normally used in hydraulic brake systems is
[A]
A solution of castor oil in alcohol along with neutralizer
[B]
High speed diesel oil along with alcohol
[C]
SAE 20 oil with anti-corrosion additives
[D]
A mixture of vegetable oil and SAE 10 oil
Answer: A solution of castor oil in alcohol along with neutralizer
67
Brake lining area required for shoe brakes for trucks is mainly based on
[A]
Average truck speed
[B]
Frequency of brake applications
[C]
Gross vehicle weight
[D]
Material used for brake drums
Answer: Gross vehicle weight
68
In the case of brake linings saturants and bonding materials are used to
[A]
Facilitate moulding and curing of brake linings
[B]
To improve the heat dissipating capacity of linings
[C]
To give a constant coefficient of friction up to 800 C
[D]
To make the lining material impervious to moisture and oil and to ensure a steady coefficient of friction up to 3000 C
Answer: Facilitate moulding and curing of brake linings
69
In the hydraulic brake system, the movement of a piston in the master cylinder produces hydraulic pressure which causes movement of
[A]
Brake shoe
[B]
Brake pedal
[C]
Brake cam
[D]
None
70
The approximate ratio of effort applied : effort available from servo system is
[A]
1:1
[B]
3:1
[C]
1:4
[D]
10:1
71
In a vacuum type servo-assisted brake system, vacuum is available in …….. is made use of
[A]
Exhaust manifold
[B]
Combustion chamber
[C]
Water jackets
[D]
Inlet manifold
72
Gudgeon pins or piston pins are made by
[A]
Piston material itself
[B]
Cork
[C]
Cast iron
[D]
Hardened and ground steel
Answer: Hardened and ground steel
73
Piston compression rings are manufactured by
[A]
Aluminium
[B]
Cast iron
[C]
Steel
[D]
Bronze
74
The material used for the piston of modern passenger cars are
[A]
Brass pistons
[B]
Cast iron pistons
[C]
Aluminiun alloy pistons
[D]
Steel pistons
Answer: Aluminiun alloy pistons
75
Aluminium alloy pistons are preferred because
[A]
They are good absorbers of shock
[B]
They are having less weight
[C]
They are very strong in tension
[D]
They have good water resistance
Answer: They are having less weight
76
Conform ability of an engine bearing is
[A]
Ability of the bearing to adjust itself to variations in shaft alignment and journal shape
[B]
Ability of a bearing to permit foreign particles to embed in it
[C]
Ability of a bearing to withstand the wear and tear
[D]
Resistivity to corrosion
Answer: Ability of the bearing to adjust itself to variations in shaft alignment and journal shape
77
A liquid that boils at a relatively high temperature is said to have
[A]
A low viscosity
[B]
A high viscosity
[C]
A low volatility
[D]
A high volatility
78
Changing position of an object against an opposing force is called
[A]
Work
[B]
Torque
[C]
Power
[D]
Energy
79
It is cheaper if we use gaskets of
[A]
Rubber asbestos type
[B]
Copper asbestos type
[C]
Steel asbestos type
[D]
None of these
Answer: Rubber asbestos type
80
The brake shoes are curved to conform to the inner diameter of the
[A]
Tyre
[B]
Wheel
[C]
Pedal
[D]
Brake drum
Take Mock Tests