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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.

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

A downwards at its upper end

B upwards at its upper end

C perpendicular to the wall at its upper end

D zero at its upper end

Review Detailed Answer

Correct Answer: zero at its upper end

Coefficient 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 friction force acting when the body is just about to move

D the friction force acting when the body is in motion

Review Detailed Answer

Correct Answer: ratio of limiting friction and normal reaction

A body of weight W on inclined plane of a being pulled up by a horizontal force P will be on the point of motion up the plane when P is equal to________________?

A W

B W sin (a + $)

C Wtan(a + <|))

D W\an(a-)

Review Detailed Answer

Correct Answer: W

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

A particle moves along a straight line such that distance (x) traversed in t seconds is given by x = t2 (t – 4), the acceleration of the particle will be given by the equation __________________?

A 3t2-lt

B 3t2+2t

C 6f-8

D 6f-4

Review Detailed Answer

Correct Answer: 6f-8

A projectile is fired at an angle 9 to the vertical. Its horizontal range will be maximum when 9 is_______________?

A 0°

B 30°

C 45°

D 60°

Review Detailed Answer

Correct Answer: 45°

Coulomb friction is the friction between _________________?

A bodies having relative motion

B two dry surfaces

C two lubricated surfaces

D solids and liquids

Review Detailed Answer

Correct Answer: bodies having relative motion

The effort required to lift a load W on a screw jack with helix angle a and angle of friction <j) is equal to _________________?

A Wtan(a + )

B Wtan(a-)

C Wcos(a + )

D Wsin(a + )

Review Detailed Answer

Correct Answer: Wtan(a + )

The maximum frictional force which comes into play when a body just begins to slide over another surface is called__________________?

A limiting friction

B sliding friction

C rolling friction

D kinematic friction

Review Detailed Answer

Correct Answer: limiting friction

A single force and a couple acting in the same plane upon a rigid body_____________________?

A balance each other

B cannot balance each other

C produce moment of a couple

D are equivalent

Review Detailed Answer

Correct Answer: balance each other

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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

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

Coefficient of friction is the_________________?

A body of weight W on inclined plane of a being pulled up by a horizontal force P will be on the point of motion up the plane when P is equal to________________?

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

A particle moves along a straight line such that distance (x) traversed in t seconds is given by x = t2 (t – 4), the acceleration of the particle will be given by the equation __________________?

A projectile is fired at an angle 9 to the vertical. Its horizontal range will be maximum when 9 is_______________?

Coulomb friction is the friction between _________________?

The effort required to lift a load W on a screw jack with helix angle a and angle of friction <j) is equal to _________________?

The maximum frictional force which comes into play when a body just begins to slide over another surface is called__________________?

A single force and a couple acting in the same plane upon a rigid body_____________________?