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.

Basic shaft is one__________________?

A whose upper deviation is zero

B whose lower deviation is zero

C whose lower as well as upper deviations are zero

D does not exist

Review Detailed Answer

Correct Answer: whose upper deviation is zero

Whether any core is required in wire ropes________________?

A yes

B no

C sometimes

D rarely

Review Detailed Answer

Correct Answer: yes

In standard taper roller bearings, the angle of taper of outer raceway is___________________?

A 5°

B 8°

C 15°

D 25°

Review Detailed Answer

Correct Answer: 5°

Three different weights fall from a certain height under vacuum. They will take______________?

A same time to reach earth

B times proportional to weight to reach earth

C times inversely proportional to weight to reach earth

D unpredictable

Review Detailed Answer

Correct Answer: same time to reach earth

In oilness bearings________________?

A the oil film pressure is generated only by the rotation of the journal

B the oil film is maintained by supplying oil under pressure

C do not require external supply of lubricant

D grease required to be applied after some intervals

Review Detailed Answer

Correct Answer: do not require external supply of lubricant

Oil in journal bearing should be applied at the point where load is________________?

A nil or lightest

B maximum

C average

D any one of the above

Review Detailed Answer

Correct Answer: nil or lightest

The usual clearance provided in hydrodynamic bearing per mm of diameter of shaft is___________________?

A 0.01 micron

B 0.1 micron

C 1 micron

D 10 microns

Review Detailed Answer

Correct Answer: 1 micron

If two springs are in parallel then their overall stiffness will be_______________?

A half

B same

C double

D unpredictable

Review Detailed Answer

Correct Answer: double

Belt slip may occur due to________________?

A heavy load

B loose belt

C driving pulley too small

D all of the above

Review Detailed Answer

Correct Answer: all of the above

When a close coiled helical spring is compressed, its wire is subjected to________________?

A tension

B shear

C compression

D all of the above

Review Detailed Answer

Correct Answer: tension

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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

Basic shaft is one__________________?

Whether any core is required in wire ropes________________?

In standard taper roller bearings, the angle of taper of outer raceway is___________________?

Three different weights fall from a certain height under vacuum. They will take______________?

In oilness bearings________________?

Oil in journal bearing should be applied at the point where load is________________?

The usual clearance provided in hydrodynamic bearing per mm of diameter of shaft is___________________?

If two springs are in parallel then their overall stiffness will be_______________?

Belt slip may occur due to________________?

When a close coiled helical spring is compressed, its wire is subjected to________________?