MCQsDrive | MCQsDrive

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.

Which of the following is not correct procedure to increase the fatigue limit_______________?

A cold working

B shot peening

C surface decarburisation

D under-stressing

Review Detailed Answer

Correct Answer: surface decarburisation

Endurance limit or fatigue limit is the maximum stress that a member can withstand for an infinite number of load applications without failure when subjected to________________?

A dynamic loading

B static loading

C combined static and dynamic loading

D completely reversed loading

Review Detailed Answer

Correct Answer: completely reversed loading

Stress concentration in static loading is more serious in__________________?

A ductile materials

B brittle materials

C equally serious in both cases

D depends on other factors

Review Detailed Answer

Correct Answer: brittle materials

The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be_________________?

A same in both cases

B 2 times more

C 3 times more

D 4 times more

Review Detailed Answer

Correct Answer: 3 times more

The endurance limit of a material with finished surface in comparison to rough surface is_________________?

A more

B less

C same

D more or less depending on quantum of load

Review Detailed Answer

Correct Answer: more

Brittle coating technique is used for_________________?

A determining brittleness

B protecting metal against corrosion

C protecting metal against wear and tear

D experimental stress analysis

Review Detailed Answer

Correct Answer: experimental stress analysis

Other method of reducing shock load in the above case can be_________________?

A to decrease length

B to increase length

C unaffected by length

D other factors would decide same

Review Detailed Answer

Correct Answer: to increase length

If an unsupported uniform cross sectional elastic bar is subjected to a longitudinal impact from a rigid bob moving with velocity v, then a compressive wave of intensity sc is propagated through the bar as follows______________________?

A vpE

B vVvF

C WpE/2

D IvHpE

Review Detailed Answer

Correct Answer: vpE

Guest’s theory of failure is applicable for following type of materials_________________?

A brittle

B ductile

C elastic

D plastic

Review Detailed Answer

Correct Answer: ductile

The property of a material which enables it to resist fracture due to high impact loads is known as__________________?

A elasticity

B endurance

C strength

D toughness

Review Detailed Answer

Correct Answer: toughness

Showing 51 to 60 of 123 results

Contact Info

Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

Which of the following is not correct procedure to increase the fatigue limit_______________?

Endurance limit or fatigue limit is the maximum stress that a member can withstand for an infinite number of load applications without failure when subjected to________________?

Stress concentration in static loading is more serious in__________________?

The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be_________________?

The endurance limit of a material with finished surface in comparison to rough surface is_________________?

Brittle coating technique is used for_________________?

Other method of reducing shock load in the above case can be_________________?

If an unsupported uniform cross sectional elastic bar is subjected to a longitudinal impact from a rigid bob moving with velocity v, then a compressive wave of intensity sc is propagated through the bar as follows______________________?

Guest’s theory of failure is applicable for following type of materials_________________?

The property of a material which enables it to resist fracture due to high impact loads is known as__________________?