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 - 2

Question 1:

In centrifugal pumps, maximum efficiency is obtained when the blades are
(a) straight
(b) bent forward
(c) bent backward
(d) radial

Check Answer

Correct Answer – (C)

Question 2 :

In a centrifugal pump, the liquid enters the pump
(a) at the top
(b) at the bottom
(c) at the center
(d) from sides

Check Answer

Correct Answer – (C)

Question 3 :

Low specific speed of a pump implies it is
(a) centrifugal pump
(b) mixed flow pump
(c) axial flow pump
(d) any one of the above

Check Answer

Correct Answer – (A)

Question 4 :

If a pump is handling water and is discharging a certain flow Q at a constant total dynamic head requiring a definite B.H.P., the same pump when handling a liquid of specific gravity 0.75 and viscosity nearly same as of water would discharge
(a) same quantity of liquid
(b) 0.75 Q
(c) Q/0.75
(d) 1.5 Q

Check Answer

Correct Answer – (A)

Question 5 :

When a piping system is made up primarily of friction head and very little of vertical lift, then pump characteristics should be
(a) horizontal
(b) nearly horizontal
(c) steep
(d) first rise and then fall

Check Answer

Correct Answer – (B)

MCQ Questions Mechanical Engineering Hydraulic Machines

Question 6:

For small discharge at high pressure, following pump is preferred
(a) centrifugal
(b) axial flow
(c) mixed flow
(d) reciprocating.

Check Answer

Correct Answer – (D)

Question 7:

The optimum value of vane exit angle for a centrifugal pump impeller is
(a) 10-15°
(b) 20-25°
(c) 30-40°
(d) 50-60°

Check Answer

Correct Answer – (B)

Question 8:

The horse power required in above case will be
(a) same
(b) 0.75 B.H.P.
(c) B.H.P./0.75
(d) 1.5 B.H.P.

Check Answer

Correct Answer – (B)

Question 9:

In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly lowered. It can be done by
(a) designing new impeller
(b) trimming the impeller size to the required size by machining
(c) not possible
(d) some other alterations in the impeller

Check Answer

Correct Answer – (B)

Question 10:

Multistage centrifugal pumps are used to obtain
(a) high discharge
(b) high head
(c) pumping of viscous fluids
(d) high head and high discharge

Check Answer

Correct Answer – (B)

MCQ Questions Mechanical Engineering Hydraulic Machines

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