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 - 3

Question 1:

The rating of a diesel engine, with increase in airintlet temperature, will
(a) increase linearly
(b) decrease linearly
(c) increase parabolically
(d) decrease parabolically

Check Answer

Correct Answer – (B)

Question 2 :

In diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of
(a) 250°C
(b) 500°C
(c) 1000°C
(d) 1500°C

Check Answer

Correct Answer – (C)

Question 3 :

In a typical medium speed, 4-stroke cycle diesel engine
(a) fuel injection starts at 10° before to dead center and ends at 20° after tor dead center
(b) fuel injection starts at top dead center and ends at 20° after top dead center
(c) fuel injection starts at just before top dead center and ends just after top deac center
(d) may start and end anywhere

Check Answer

Correct Answer – (A)

Question 4 :

Which of the following medium is compressed in a Diesel engine cylinder
(a) air alone
(b) air and fuel
(c) air and lub oil
(d) fuel alone

Check Answer

Correct Answer – (A)

Question 5 :

Most high speed compression engines operate on
(a) Diesel cycle
(b) Otto cycle
(c) Dual combustion cycle
(d) Special type of air cycle

Check Answer

Correct Answer – (C)

MCQ Questions Mechanical Engineering I.C. Engines

Question 6:

When crude oil is heated, then which of the following hydrocarbon is given off first.
(a) kerosene
(b) gasoline
(c) paraffin
(d) natural gas.

Check Answer

Correct Answer – (D)

Question 7:

Diesel fuel, compared to petrol is
(a) less difficult to ignite
(b) just about the same difficult to ignite
(c) more difficult to ignite
(d) highly ignitable

Check Answer

Correct Answer – (A)

Question 8:

The air-fuel ratio of the petrol engine is controlled by
(a) fuel pump
(b) governor
(c) injector
(d) carburetor

Check Answer

Correct Answer – (D)

Question 9:

The accumulation of carbon in a cylinder results in increase of
(a) clearance volume
(b) volumetric efficiency
(c) ignition time
(d) effective compression ratio

Check Answer

Correct Answer – (D)

Question 10:

Which of the following statements is correct?
(a) All the irreversible engines have same efficiency
(b) All the reversible engines have same efficiency
(c) Both Rankine and Caront cycles have same efficiency between same temperature limits
(d) All reversible engines working between same temperature limits have same-efficiency

Check Answer

Correct Answer – (D)

MCQ Questions Mechanical Engineering I.C. Engines

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