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 the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one_______________?

A ellipse

B hyperbola

C parabola

D circle

Review Detailed Answer

Correct Answer: hyperbola

The co-efficient of friction depends upon _________________?

A nature of surfaces

B area of contact

C shape of the surfaces

D ail of the above.

Review Detailed Answer

Correct Answer: nature of surfaces

If three forces acting in one plane upon a rigid body, keep it in equilibrium, then they must either___________________?

A meet in a point

B be all parallel

C at least two of them must meet

D all the above are correct

Review Detailed Answer

Correct Answer: all the above are correct

The algebraic sum of moments of the forces forming couple about any point in their plane is__________________?

A equal to the moment of the couple

B constant

C both of above are correct

D both of above are wrong

Review Detailed Answer

Correct Answer: equal to the moment of the couple

Dynamic friction as compared to static friction is __________________?

A same

B more

C less

D may be less of more depending on nature of surfaces and velocity

Review Detailed Answer

Correct Answer: less

If rain is falling in the opposite direction of the movement of a pedestrain, he has to hold his umbrella ________________________?

A more inclined when moving

B less inclined when moving

C more inclined when standing

D less inclined when standing

Review Detailed Answer

Correct Answer: less inclined when standing

In a belt drive, the pulley diameter is doubled, the belt tension and pulley width remaining same. The changes required in key will be____________________?

A increase key length

B increase key depth

C increase key width

D double all the dimensions

Review Detailed Answer

Correct Answer: increase key width

The value of shear stress which is induced in the shaft due to the applied couple varies____________________?

A from maximum at the center to zero at the circumference

B from zero at the center to maximum at the circumference

C from maximum at the center to mini-mum at the cricumference

D from minimum at the centro to maxi-mum at the circumference

Review Detailed Answer

Correct Answer: from zero at the center to maximum at the circumference

The safe twisting moment for a compound shaft is equal to the _________________?

A maximum calculated value

B minimum calculated value

C mean value

D extreme value

Review Detailed Answer

Correct Answer: minimum calculated value

The force acting along the circumference will cause stress in the walls in a direction normal to the longitudinal axis of cylinder; this stress is called___________________?

A longitudinal stress

B hoop stress

C yeiled stress

D ultimate stress

Review Detailed Answer

Correct Answer: hoop stress

Showing 1401 to 1410 of 1919 results

Contact Info

Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one_______________?

The co-efficient of friction depends upon _________________?

If three forces acting in one plane upon a rigid body, keep it in equilibrium, then they must either___________________?

The algebraic sum of moments of the forces forming couple about any point in their plane is__________________?

Dynamic friction as compared to static friction is __________________?

If rain is falling in the opposite direction of the movement of a pedestrain, he has to hold his umbrella ________________________?

In a belt drive, the pulley diameter is doubled, the belt tension and pulley width remaining same. The changes required in key will be____________________?

The value of shear stress which is induced in the shaft due to the applied couple varies____________________?

The safe twisting moment for a compound shaft is equal to the _________________?

The force acting along the circumference will cause stress in the walls in a direction normal to the longitudinal axis of cylinder; this stress is called___________________?