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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.

The specific weight of water is 1000 kg/m”_________________?

A at normal pressure of 760 mm

B at 4°C temperature

C at mean sea level

D all the above

Review Detailed Answer

Correct Answer: all the above

When the flow parameters at any given instant remain same at every point, then flow is said to be___________________?

A quasi static

B steady state

C laminar

D uniform

Review Detailed Answer

Correct Answer: uniform

An object having 10 kg mass weighs 9.81kg on a spring balance. The value of ‘g’ at this place is _________________?

A 10m/sec2

B 9.81 m/sec2

C 10.2/m sec

D 9.75 m/sec2

Review Detailed Answer

Correct Answer: 10m/sec2

For very great pressures, viscosity of moss gases and liquids__________________?

A remains same

B increases

C decreases

D shows erratic behavior

Review Detailed Answer

Correct Answer: shows erratic behavior

Viscosity of water in comparison to mercury is_________________?

A higher

B lower

C same

D higher/lower depending on temperature

Review Detailed Answer

Correct Answer: higher

The bulk modulus of elasticity___________________?

A has the dimensions of 1/pressure

B increases with pressure

C is large when fluid is more compressible

D is independent of pressure and viscosity

Review Detailed Answer

Correct Answer: increases with pressure

Units of surface tension are____________________?

A energy/unit area

B distance

C both of the above

D it has no units

Review Detailed Answer

Correct Answer: both of the above

For manometer, a better liquid combination is one having ___________________?

A higher surface tension

B lower surface tension

C surface tension is no criterion

D high density and viscosity

Review Detailed Answer

Correct Answer: higher surface tension

Alcohol is used in manometer, because____________________?

A its vapour pressure is low

B it provides suitable meniscus for the inclined tube

C its density is less

D it provides longer length for a given pressure difference

Review Detailed Answer

Correct Answer: its vapour pressure is low

The property of fluid by virtue of which it offers resistance to shear is called________________?

A surface tension

B adhesion

C cohesion

D viscosity

Review Detailed Answer

Correct Answer: viscosity

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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

The specific weight of water is 1000 kg/m”_________________?

When the flow parameters at any given instant remain same at every point, then flow is said to be___________________?

An object having 10 kg mass weighs 9.81kg on a spring balance. The value of ‘g’ at this place is _________________?

For very great pressures, viscosity of moss gases and liquids__________________?

Viscosity of water in comparison to mercury is_________________?

The bulk modulus of elasticity___________________?

Units of surface tension are____________________?

For manometer, a better liquid combination is one having ___________________?

Alcohol is used in manometer, because____________________?

The property of fluid by virtue of which it offers resistance to shear is called________________?