MCQ Questions Mechanical Engineering I.C. Engines

Take a look at these MCQ Questions I.C. Enginess for engineering interview questions and our tips on how to answer them. If you’re applying for an engineering internship, graduate scheme or entry-level job, you’ll face at least one interview as part of an engineering employer’s recruitment process. You may be interviewed by one or more members of the HR team, senior members of the engineering team you’d be joining or a mixture of both. In this section we will study MCQ Questions Mechanical Engineering I.C. Engines.

As well as questions about your reasons for applying to the role and the employer in question, engineering recruiters will be assessing your potential in the areas that is crucial to any engineering role: technical expertise. Engineers may be asked to perform feats of fantastic technical prowess, but it will be as as part of a Justice League rather than as a solo engineering super hero.

The interviewer is almost as nervous as the candidate in most interviews. You might wonder if you look confident enough, if you will hire the right person, or if you are asking the right engineering interview questions. The last question is arguably the most crucial part to worry about when you’re interviewing candidates.

MCQ Questions Mechanical Engineering I.C. Engines - Set - 2

Question 1:

As a result of detonation in an I.C. engine, following parameter attains very high value
(a) peak pressure
(b) rate of rise of pressure
(c) rate of rise of temperature
(d) peak temperature

Check Answer

Correct Answer – (B)

Question 2 :

For the same compression ratio
(a) Otto cycle is more efficient than the Diesel
(b) Diesel cycle is more efficient than Otto
(c) both Otto and Diesel cycles are, equally efficient
(d) compression ratio has nothing to do with efficiency

Check Answer

Correct Answer – (A)

Question 3 :

It the temperature of intake air in IC engines is lowered, then its efficiency will
(a) increase
(b) decrease
(c) remain same
(d) increase upto certain limit and then decrease

Check Answer

Correct Answer – (A)

Question 4 :

If one cylinder of a diesel engine receives more fuel than the others, then for that cylinder the
(a) exhaust will be smoky
(b) piston rings would stick into piston grooves
(c) exhaust temperature will be high
(d) scavenging occurs.

Check Answer

Correct Answer – (D)

Question 5 :

Which of the following is not an interns combustion engine
(a) 2-stroke petrol engine
(b) 4-stroke petrol engine
(c) diesel engine
(d) steam turbine.

Check Answer

Correct Answer – (D)

MCQ Questions Mechanical Engineering I.C. Engines

Question 6:

The process of breaking up or a liquid into fine droplets by spraying is called
(a) vapourisation
(b) carburetion
(c) ionisation
(d) automisation.

Check Answer

Correct Answer – (D)

Question 7:

In a typical medium speed 4-stroke cycle diesel engine
(a) compression starts at 35° after bottom dead center and ends at top dead center
(b) compression starts at bottom dead center and ends at top dead center
(c) compression starts at 10° before bottom dead center and, ends just before top dead center
(d) may start and end anywhere

Check Answer

Correct Answer – (A)

Question 8:

The output of a diesel engine can be increased without increasing the engine revolution or size in following way
(a) feeding more fuel
(b) increasing flywheel size
(c) heating incoming air
(d) supercharging.

Check Answer

Correct Answer – (D)

Question 9:

Pick up the false statement
(a) Thermal efficiency of diesel engine i about 34%
(b) Theoretically correct mixture of air am petrol is approximately 15 : 1
(c) High speed compression engines operate on dual combustion cycle
(d) S.I. engines are quality-governed engines.

Check Answer

Correct Answer – (D)

Question 10:

The inlet value of a four stroke cycle I.C engine remains open for nearly
(a) 180°
(b) 125°
(c) 235°
(d) 200°

Check Answer

Correct Answer – (C)

MCQ Questions Mechanical Engineering I.C. Engines

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