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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.

Guide angle as per the aerofoil theory of Kaplan turbine blade design is defined as the angle between_________________?

A lift and resultant force

B drag and resultant force

C lift and tangential force

D lift and drag

Review Detailed Answer

Correct Answer: lift and resultant force

Casting of a centrifugal pump is designed so as to minimize________________?

A friction loss

B cavitation

C static head

D loss of kinetic energy

Review Detailed Answer

Correct Answer: loss of kinetic energy

High specific speed of turbine implies it is__________________?

A propeller turbine

B Francis turbine

C impulse turbine

D any one of the above

Review Detailed Answer

Correct Answer: propeller turbine

Select the correct statement?

A Local atmospheric pressure depends upon elevation of locality only

B Standard atmospheric pressure is the mean local atmospheric pressure a* sea level

C Local atmospheric pressure is always below standard atmospheric pressure

D A barometer reads the difference be-tween local and standard atmospheric pressure

Review Detailed Answer

Correct Answer: Standard atmospheric pressure is the mean local atmospheric pressure a* sea level

Fluid is a substance that___________________?

A cannot be subjected to shear forces

B always expands until it fills any container

C has the same shear stress.at a point regardless of its motion

D cannot remain at rest under action of any shear force

Review Detailed Answer

Correct Answer: cannot remain at rest under action of any shear force

Practical fluids___________________?

A are viscous

B possess surface tension

C are compressible

D possess all the above properties

Review Detailed Answer

Correct Answer: possess all the above properties

If no resistance is encountered by displacement, such a substance is known as ___________________?

A fluid

B water

C gas

D perfect solid

Review Detailed Answer

Correct Answer: fluid

Density of water is maximum at__________________?

A 0°C

B 0°K

C 4°C

D 100°C

Review Detailed Answer

Correct Answer: 4°C

Property of a fluid by which its own molecules are attracted is called___________________?

A adhesion

B cohesion

C viscosity

D compressibility

Review Detailed Answer

Correct Answer: cohesion

The property of a fluid which enables it to resist tensile stress is known as___________________?

A compressibility

B surface tension

C cohesion

D adhesion

Review Detailed Answer

Correct Answer: cohesion

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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

Guide angle as per the aerofoil theory of Kaplan turbine blade design is defined as the angle between_________________?

Casting of a centrifugal pump is designed so as to minimize________________?

High specific speed of turbine implies it is__________________?

Select the correct statement?

Fluid is a substance that___________________?

Practical fluids___________________?

If no resistance is encountered by displacement, such a substance is known as ___________________?

Density of water is maximum at__________________?

Property of a fluid by which its own molecules are attracted is called___________________?

The property of a fluid which enables it to resist tensile stress is known as___________________?