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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.

A liquid compressed in cylinder has a volume of 0.04 m3 at 50 kg/cm2 and a volume of 0.039 m3 at 150 kg/cm2. The bulk modulus of elasticity of liquid is___________________?

A 400 kg/cm2

B 4000 kg/cm2

C 40 x 105 kg/cm2

D 40 x 106 kg/cm2

Review Detailed Answer

Correct Answer: 4000 kg/cm2

Surface tension__________________?

A acts in the plane of the interface normal to any line in the surface

B is also known as capillarity

C is a function of the curvature of the interface

D decreases with fall in temperature

Review Detailed Answer

Correct Answer: acts in the plane of the interface normal to any line in the surface

A balloon lifting in air follows the following principle_____________________?

A law of gravitation

B Archimedes principle

C principle of buoyancy

D all of the above

Review Detailed Answer

Correct Answer: all of the above

The bulk modulus of elasticity with increase in pressure__________________?

A increases

B decreases

C remains constant

D increases first up to certain limit and then decreases

Review Detailed Answer

Correct Answer: increases

A fluid in equilibrium can’t sustain____________________?

A tensile stress

B compressive stress

C shear stress

D bending stress

Review Detailed Answer

Correct Answer: shear stress

The tendency of a liquid surface to contract is due to the following property_____________?

A cohesion

B adhesion

C viscosity

D surface tension

Review Detailed Answer

Correct Answer: surface tension

Specific weight of water in S.I. units is equal to ________________?

A 1000 N/m3

B 10000 N/m3

C 9.81 xlO3 N/m3

D 9.81 xlO6N/m3

Review Detailed Answer

Correct Answer: 9.81 xlO3 N/m3

Mercury does not wet glass. This is due to property of liquid known as__________________?

A adhesion

B cohesion

C surface tension

D viscosity

Review Detailed Answer

Correct Answer: surface tension

The value of mass density in kgsecVm4 for water at 0°C is_________________?

A 1

B 1000

C 100

D 101.9

Review Detailed Answer

Correct Answer: 1

An ideal flow of any fluid must fulfill the following____________________?

A Newton’s law of motion

B Newton’s law of viscosity

C Pascal’ law

D Continuity equation

Review Detailed Answer

Correct Answer: Continuity equation

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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

A liquid compressed in cylinder has a volume of 0.04 m3 at 50 kg/cm2 and a volume of 0.039 m3 at 150 kg/cm2. The bulk modulus of elasticity of liquid is___________________?

Surface tension__________________?

A balloon lifting in air follows the following principle_____________________?

The bulk modulus of elasticity with increase in pressure__________________?

A fluid in equilibrium can’t sustain____________________?

The tendency of a liquid surface to contract is due to the following property_____________?

Specific weight of water in S.I. units is equal to ________________?

Mercury does not wet glass. This is due to property of liquid known as__________________?

The value of mass density in kgsecVm4 for water at 0°C is_________________?

An ideal flow of any fluid must fulfill the following____________________?