MCQ Questions Mechanical Engineering Compressors, Gas Turbines and Jet Engines

Take a look at these MCQ Questions Compressors, Gas Turbines and Jet Engines 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 Compressors, Gas Turbines and Jet 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 Compressors, Gas Turbines and Jet Engines - Set - 5

Question 1:

The ratio of outlet whirl velocity to blade velocity in case of centrifugal compressor is called
(a) slip factor
(b) velocity factor
(c) velocity coefficient
(d) blade effectiveness

Check Answer

Correct Answer – (A)

Question 2 :

The advantage of multistage compression over single stage compression is
(a) lower power consumption per unit of air delivered
(b) higher volumetric efficiency
(c) decreased discharge temperature
(d) moisture free air
(e) all of the above.

Check Answer

Correct Answer – (E)

Question 3 :

During base load operation, the best method of controlling compressor is
(a) start-stop motor
(b) constant speed unloader
(c) relief valve
(d) variable speed

Check Answer

Correct Answer – (A)

Question 4 :

The volumetric efficiency of a compressor falls roughly as follows for every 100 m increase in elevation
(a) 0.1%
(b) 0.5%
(c) 1.0%
(d) 5%

Check Answer

Correct Answer – (C)

Question 5 :

The volumetric efficiency of a compressor is calculated on the basis of
(a) volume of air inhaled at working conditions
(b) volume of air inhaled at N.T.P. conditions
(c) volume at 0°C and 1 kg/cm²
(d) volume at 20°C and 1 kg/cm²

Check Answer

Correct Answer – (B)

MCQ Questions Mechanical Engineering Compressors, Gas Turbines and Jet Engines

Question 6:

As the value of index ‘«’ is decreased, the volumetric efficiency will
(a) increase
(b) decrease
(c) remain unaffected
(d) may increase/decrease depending on compressor clearance

Check Answer

Correct Answer – (B)

Question 7:

Pick up the wrong statement about advantages of multistage compression
(a) better lubrication is possible advantages of multistage
(b) more loss of air due to leakage past the cylinder
(c) mechanical balance is better
(d) air can be cooled perfectly in between

Check Answer

Correct Answer – (B)

Question 8:

More than one stage will be preferred for reciprocating compressor if the delivery pressure is more than
(a) 2 kg/cm²
(b) 6 kg/cm²
(c) 10 kg/cm²
(d) 14.7 kg/cm²

Check Answer

Correct Answer – (A)

Question 9:

For slow-speed large capacity compressor, following type of valve will be best suited
(a) poppet valve
(b) mechanical valve of the corliss, sleeve, rotary or semirotary type
(c) disc or feather type
(d) any of the above

Check Answer

Correct Answer – (C)

Question 10:

In a compressor, free air delivered is the actual volume delivered at the stated pressure reduced to
(d) N.T.P. conditions
(b) intake temperature and pressure conditions
(c) 0°C and 1 kg/cm²
(d) 20°C and 1 kg/cm²

Check Answer

Correct Answer – (B)

MCQ Questions Mechanical Engineering Compressors, Gas Turbines and Jet Engines

NCERT Solutions & Download NCERT Textbooks

MCQ Questions Electrical Engineering Earthing or Grounding

Multiple Choice Questions for Competitive Exams

MCQ Questions Class 11 Chemistry Environmental Chemistry with Answers

Set -1 Set -2 Set -3 Set -4 Set -5
MCQ Questions Class 11 Chemistry Hydrocarbons with Answers

Set -1 Set -2 Set -3 Set -4 Set -5
MCQ Questions Class 11 Chemistry Organic Chemistry with Answers

Set -1 Set -2 Set -3 Set -4 Set -5
MCQ Questions Class 11 Chemistry The p Block Elements with Answers

Set -1 Set -2 Set -3 Set -4 Set -5
MCQ Questions Class 11 Chemistry The s Block Elements with Answers

Set -1 Set -2 Set -3 Set -4 Set -5
MCQ Questions Class 11 Chemistry Hydrogen with Answers

Set -1 Set -2 Set -3 Set -4 Set -5