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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 point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as_________________?

A meta center

B center of pressure

C center of buoyancy

D center of gravity

Review Detailed Answer

Correct Answer: center of pressure

A liquid would wet the solid, if adhesion forces as compared to cohesion forces are________________?

A less

B more

C equal

D less at low temperature and more at high temperature

Review Detailed Answer

Correct Answer: more

A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will_________________?

A increase

B decrease

C remain same

D increase/decrease depending on depth of immersion

Review Detailed Answer

Correct Answer: remain same

If 850 kg liquid occupies volume of one cubic meter, men 0.85 represents its__________________?

A specific weight

B specific mass

C specific gravity

D specific density

Review Detailed Answer

Correct Answer: specific gravity

A pressure of 25 m of head of water is equal to_________________?

A 25 kN/m2

B 245 kN/m2

C 2500 kN/m2

D 2.5kN/m2

Review Detailed Answer

Correct Answer: 245 kN/m2

A one dimensional flow is one which_________________?

A is uniform flow

B is steady uniform flow

C takes place in straight lines

D involves zero transverse component of flow

Review Detailed Answer

Correct Answer: involves zero transverse component of flow

Kinematic viscosity is equal to_________________?

A dynamic viscosity/density

B dynamicviscosity x density

C density/dynamic viscosity

D 1/dynamicviscosity x density

Review Detailed Answer

Correct Answer: dynamic viscosity/density

The units of kinematic viscosity are____________________?

A metres2 per sec

B kg sec/metre

C newton-sec per metre

D newton-sec per metre

Review Detailed Answer

Correct Answer: metres2 per sec

If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be________________?

A h

B wh

C w/h

D h/w

Review Detailed Answer

Correct Answer: h

Increase in pressure at the outer edge of a drum of radius R due to rotation at corad/sec, full of liquid of density p will be___________________?

A pco2/?2

B pco2/?2/2

C 2pa2R2

D pa2R/2

Review Detailed Answer

Correct Answer: pco2/?2

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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as_________________?

A liquid would wet the solid, if adhesion forces as compared to cohesion forces are________________?

A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will_________________?

If 850 kg liquid occupies volume of one cubic meter, men 0.85 represents its__________________?

A pressure of 25 m of head of water is equal to_________________?

A one dimensional flow is one which_________________?

Kinematic viscosity is equal to_________________?

The units of kinematic viscosity are____________________?

If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be________________?

Increase in pressure at the outer edge of a drum of radius R due to rotation at corad/sec, full of liquid of density p will be___________________?