MCQ Questions Mechanical Engineering Hydraulic Machines

Take a look at these MCQ Questions Hydraulic Machines 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 Hydraulic Machines.

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 Hydraulic Machines - Set - 5

Question 1:

According to fan laws, for fans having constant wheel diameter, the air or gas capacity varies
(a) directly as fan speed
(b) square of fan speed
(c) cube of fan speed
(d) square root of fan speed

Check Answer

Correct Answer – (A)

Question 2 :

Saving of work done and power by fitting an air vessel to single acting reciprocating pump is of the order of
(a) 39.2%
(b) 49.2%
(c) 68.8%
(d) 84.8%

Check Answer

Correct Answer – (D)

Question 3 :

Which place in hydraulic turbine is most susceptible for cavitation
(a) inlet of draft rube
(b) blade inlet
(c) guide blade
(d) penstock

Check Answer

Correct Answer – (A)

Question 4 :

Specific speed for reaction turbines ranges from
(a) 0 to 4.5
(b) 10 to 100
(c) 80 to 200
(d) 250 to 300

Check Answer

Correct Answer – (B)

Question 5 :

The discharge through a reaction turbine with increase in unit speed
(a) increases
(b) decreases
(c) remains unaffected
(d) first increases and then decreases

Check Answer

Correct Answer – (B)

MCQ Questions Mechanical Engineering Hydraulic Machines

Question 6:

Saving of work done and power by fitting an air vessel to double acting reciprocating pump is of the order of
(a) 39.2%
(b) 49.2%
(c) 68.8%
(d) 84.8%

Check Answer

Correct Answer – (A)

Question 7:

Air vessels in reciprocating pump are used to
(a) smoothen flow
(b) reduce acceleration to minimum
(c) increase pump efficiency
(d) save pump from cavitation

Check Answer

Correct Answer – (B)

Question 8:

In axial flow fans and turbines, fluid enters and leaves as follows
(a) radially, axially
(b) axially, radially
(c) axially, axially
(d) radially, radially

Check Answer

Correct Answer – (C)

Question 9:

The angle of taper on draft tube is
(a) greater than 15°
(b) greater than 8°
(c) greater than 5°
(d) less than 8°

Check Answer

Correct Answer – (D)

Question 10:

Reaction turbines are used for
(a) low head
(b) high head
(c) high head and low discharge
(d) high head and high discharge

Check Answer

Correct Answer – (D)

MCQ Questions Mechanical Engineering Hydraulic Machines

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