Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

Mechanical Engineering MCQs prepared for job test and interview preparation, especially for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover key topics such as Machine Design, Theory of Machines, Hydraulic Machines, and other important mechanical engineering concepts.

The thermal efficiency of a gas turbine as compared to a diesel plant is__________________?

A same

B more

C less

D depends on other factors

Review Detailed Answer

Correct Answer: less

Gas turbine blades are given a rake___________________?

A equal to zero

B in the direction of motion of blades

C opposite to the direction of motion of blades

D depending on the velocity

Review Detailed Answer

Correct Answer: in the direction of motion of blades

Mechanical efficiency of gas turbines as compared to I.C engines is____________________?

A higher

B lower

C same

D depends on on odier considerations

Review Detailed Answer

Correct Answer: higher

The fuel consumption in gas turbines is accounted for by___________________?

A low.er heating value

B higher heating value

C heating value

D higher calorific value

Review Detailed Answer

Correct Answer: low.er heating value

The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. is_______________?

A low

B high

C same

D low/high depending on make and type

Review Detailed Answer

Correct Answer: low

The work ratio of a gas turbine plant is defined as the ratio of__________________?

A net work output and heat supplied (6) net work output and work done by tur¬bine

C actual heat drop and isentropic heat drop

D net work output and isentropic heat drop

Review Detailed Answer

Correct Answer: net work output and isentropic heat drop

Rotary compressors are suitable for ____________________?

A large discharge at high pressure

B low discharge at high pressure

C large discharge at low pressure

D low discharge at low pressure

Review Detailed Answer

Correct Answer: large discharge at low pressure

Gas turbine works on______________?

A Brayton or Atkinson cycle

B Carnot cycle

C Rankine cycle

D Erricsson cycle

Review Detailed Answer

Correct Answer: Brayton or Atkinson cycle

Gas turbine works on_______________?

A Brayton or Atkinson cycle

B Carnot cycle

C Rankine cycle

D Erricsson cycle

Review Detailed Answer

Correct Answer: Brayton or Atkinson cycle

The pressure ratio of an ideal vaned compressor with increase in mass flow rate_________________?

A increases

B decreases

C remains constant

D first decreases and then increases

Review Detailed Answer

Correct Answer: remains constant

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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

The thermal efficiency of a gas turbine as compared to a diesel plant is__________________?

Gas turbine blades are given a rake___________________?

Mechanical efficiency of gas turbines as compared to I.C engines is____________________?

The fuel consumption in gas turbines is accounted for by___________________?

The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. is_______________?

The work ratio of a gas turbine plant is defined as the ratio of__________________?

Rotary compressors are suitable for ____________________?

Gas turbine works on______________?

Gas turbine works on_______________?

The pressure ratio of an ideal vaned compressor with increase in mass flow rate_________________?