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Automobile Engineering MCQ Questions & Answers | Mechanical Engineering

Learn Automobile Engineering MCQ questions & answers are available for a Mechanical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Automobile Engineering MCQ question is the important chapter for a Mechanical Engineering and GATE students. Page-10 section-1

Each section contains 100 MCQs on Automobile Engineering .
91
The basic purpose of providing caster angle on wheels is to
Discuss
Answer & Solution
Answer: Option B
Solution:
Excessive caster angle will make the steering heavier and less responsive, although in racing large caster angles are used for improving camber gain in cornering.
92
The coefficient of rolling resistance for a truck weighing 63,500 N is 0.018. The rolling resistance to the truck is
Discuss
Answer & Solution
Answer: Option D
Solution:
As per given data,
Truck weight = 63500 N.
Coefficient of rolling = 0.018
Equation: Rolling resistance = Coefficient of rolling × weight
Rolling resistance = 0.018 × 63500 = 1143 N
93
Instead of valves, the ports are used in case of
Discuss
Answer & Solution
Answer: Option B
Solution:
Instead of valves, the ports are used in case of two stroke I.C. engines
94
An overinflated tyre will wear the tread most near the
Discuss
Answer & Solution
Answer: Option C
Solution:
An overinflated tyre will wear the tread most near the centre
95
The connecting rods are generally made of __________ shaped cross-section.
Discuss
Answer & Solution
Answer: Option A
Solution:
The connecting rods are generally made of I shaped cross-section.
96
The problems caused by the wheel imbalance are
Discuss
Answer & Solution
Answer: Option C
Solution:
The problems caused by the wheel imbalance are
Hard steering and hard ride.
Poor acceleration and hard steering.
Steering wheel vibrations and uneven tyre wear.
Poor acceleration and reduced fuel efficiency.
97
The compression ratio in petrol engine is kept less than in Diesel engine because
Discuss
Answer & Solution
Answer: Option B
Solution:
The compression ratio in petrol engine is kept less than in Diesel engine because Higher or equivalent compression ratio in petrol engines is not possible due to pre-ignition
98
In a Diesel engine, the function of a fuel injector is to
Discuss
Answer & Solution
Answer: Option D
Solution:
The purpose of the fuel injection system is to deliver fuel into the engine cylinders, while precisely controlling the injection timing, fuel atomization, and other parameters.
99
If the air-fuel mixture in a spark ignition engine is too rich, then air-fuel ratio is about
Discuss
Answer & Solution
Answer: Option D
Solution:
If the air-fuel mixture in a spark ignition engine is too rich, then air-fuel ratio is about 10 : 1.
100
The service brakes employed in cars are generally operated
Discuss
Answer & Solution
Answer: Option B
Solution:
The service brakes employed in cars are generally operated Hydraulically