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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-9 section-1

Each section contains 100 MCQs on Automobile Engineering .
81
The aspect ratio (expressed in percentage) of the tyre is defined as the ratio of
Discuss
Answer & Solution
Answer: Option B
Solution:
The aspect ratio (expressed in percentage) of the tyre is defined as the ratio of Section height to section width
82
The composition of the electrolyte in a fully charged battery is that
Discuss
Answer & Solution
Answer: Option C
Solution:
The composition of the electrolyte in a fully charged battery is that The electrolyte is a mixture of 64% distilled water and 36% sulphuric acid by weight
83
The instrument used to check specific gravity of acid in a battery is
Discuss
Answer & Solution
Answer: Option A
Solution:
A hydrometer is an instrument used for measuring the relative density of liquids based on the concept of buoyancy.
They are typically calibrated and graduated with one or more scales such as specific gravity.
84
The size of engine cylinder is referred in terms of its
Discuss
Answer & Solution
Answer: Option C
Solution:
The size of engine cylinder is referred in terms of its Bore and stroke
85
Clutch facings are usually attached to the plate by
Discuss
Answer & Solution
Answer: Option B
Solution:
Clutch facings are usually attached to the plate by Brass rivets
86
When the brake pedal free play is less than the specified value, then the
Discuss
Answer & Solution
Answer: Option A
Solution:
When the brake pedal free play is less than the specified value, then the Brake drags
87
A petrol engine of a car develops 125 Nm torque at 2700 r.p.m. The car is driven in second gear having gear ratio of 1.75. The final drive ratio is 4.11. If the overall transmission efficiency is 90%, then the torque available at the driving wheels is
Discuss
Answer & Solution
Answer: Option C
Solution:
Torque = gear ratio × final drive ratio × overall transmission efficiency
$$\eqalign{ & {\text{T}} = 1.75 \times 4.11 \times \frac{{90}}{{100}} \times 125 \cr & {\text{T}} = 809.1{\text{ Nm}} \cr} $$
88
For the same maximum pressure and temperature
Discuss
Answer & Solution
Answer: Option A
Solution:
For the same maximum pressure and temperature Diesel cycle is more efficient than Otto cycle
89
The engine oil is stored in _________ when the engine is not running.
Discuss
Answer & Solution
Answer: Option A
Solution:
The engine oil is stored in oil pan when the engine is not running.
90
The major purpose of an electronically controlled automatic transmission is that this type of transmission
Discuss
Answer & Solution
Answer: Option D
Solution:
The major purpose of an electronically controlled automatic transmission is that this type of transmission Reduces shift shock and achieves more efficient transmission of engine torque