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 one of the following statements is not correct_________________?

A the tangent of the angle of friction is equal to coefficient of friction

B the angle of repose is equal to angle of friction

C the tangent of the angle of repose is equal to coefficient of friction

D the sine of the angle of repose is equal to coefficient to friction

Review Detailed Answer

Correct Answer: the sine of the angle of repose is equal to coefficient to friction

Pick up the incorrect statement from the following ?

A The C.G. of a circle is at its center

B The C.G. of a triangle is at the intersection of its medians

C The C.G. of a rectangle is at the inter-section of its diagonals

D The C.G. of a semicircle is at a distance of r/2 from the center

Review Detailed Answer

Correct Answer: The C.G. of a semicircle is at a distance of r/2 from the center

Two coplanar couples having equal and opposite moments_________________?

A balance each other

B produce a couple and an unbalanced force

C are equivalent

D produce a moment of couple

Review Detailed Answer

Correct Answer: balance each other

On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be___________________?

A towards the wall at its upper end

B away from the wall at its upper end

C upwards at its upper end

D downwards at its upper end

Review Detailed Answer

Correct Answer: upwards at its upper end

The ratio of limiting friction and normal reaction is known as _____________________?

A coefficient of friction

B angle of friction

C angle of repose

D sliding friction

Review Detailed Answer

Correct Answer: coefficient of friction

A framed structure is perfect if it contains members equal to_________________?

A 2n-3

B n-l

C ‘2n-l

D n – 2

Review Detailed Answer

Correct Answer: 2n-3

In detennining stresses in frames by methods of sections, the frame is divided into two parts by an imaginary section drawn in such a way as not to cut more than____________________?

A two members with unknown forces of the frame

B three members with unknown forces of the frame

C four members with unknown forces of the frame

D three members with known forces of the frame

Review Detailed Answer

Correct Answer: three members with unknown forces of the frame

The center of gravity of a triangle lies at the point of __________________?

A concurrence of the medians

B intersection of its altitudes

C intersection of bisector of angles

D intersection of diagonals

Review Detailed Answer

Correct Answer: concurrence of the medians

The possible loading in various members of framed structures are_________________?

A compression or tension

B buckling or shear

C shear or tension

D all of the above

Review Detailed Answer

Correct Answer: compression or tension

Angle of friction is the_______________________?

A angle between normal reaction and the resultant of normal reaction and the limiting friction

B ratio of limiting friction and normal reaction

C the ratio of minimum friction force to the friction force acting when the body is just about to move

D the ratio of minimum friction force to friction force acting when the body is in motion

Review Detailed Answer

Correct Answer: angle between normal reaction and the resultant of normal reaction and the limiting friction

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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

Which one of the following statements is not correct_________________?

Pick up the incorrect statement from the following ?

Two coplanar couples having equal and opposite moments_________________?

On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be___________________?

The ratio of limiting friction and normal reaction is known as _____________________?

A framed structure is perfect if it contains members equal to_________________?

In detennining stresses in frames by methods of sections, the frame is divided into two parts by an imaginary section drawn in such a way as not to cut more than____________________?

The center of gravity of a triangle lies at the point of __________________?

The possible loading in various members of framed structures are_________________?

Angle of friction is the_______________________?