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.

Center of gravity of a thin hollow cone lies on the axis at a height of ___________________?

A one-fourth of the total height above base

B one-third of the total height above base

C one-half of the total height above base

D three-eighth of the total height above the base

Review Detailed Answer

Correct Answer: one-third of the total height above base

The center of percussion of the homogeneous rod of length L suspended at the top will be___________________?

A L/2

B L/3

C 3L/4

D 2L/3

Review Detailed Answer

Correct Answer: L/3

Center of gravity of a solid cone lies on the axis at the height _____________________?

A one-fourth of the total height above base

B one-third of the total height above base

C one-half of the total height above base

D three-eighth of the total height above the base

Review Detailed Answer

Correct Answer: one-fourth of the total height above base

The units of moment of inertia of an area are__________________?

A kg m2

B m4

C kg/m2

D m3

Review Detailed Answer

Correct Answer: m4

Center of percussion is___________________?

A the point of C.G.

B the point of metacentre

C the point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis

D point of suspension

Review Detailed Answer

Correct Answer: the point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis

The center of gravity of a uniform lamina lies at____________________?

A the center of heavy portion

B the bottom surface

C the mid point of its axis

D all of the above

Review Detailed Answer

Correct Answer: the mid point of its axis

The product of either force of couple with the arm of the couple is called_________________?

A resultant couple

B moment of the forces

C resulting couple

D moment of the couple

Review Detailed Answer

Correct Answer: moment of the couple

According to Lami’s theorem___________________?

A three forces acting at a point will be in equilibrium

B three forces acting at a point can be represented by a triangle, each side being proportional to force

C if three forces acting upon a particle are represented in magnitude and

D if three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two

Review Detailed Answer

Correct Answer: if three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two

D’ Alembert’s principle is used for______________________?

A reducing the problem of kinetics to equivalent statics problem

B determining stresses in the truss

C stability of floating bodies

D designing safe structures

Review Detailed Answer

Correct Answer: reducing the problem of kinetics to equivalent statics problem

According to law of triangle of forces __________________ ?

A three forces acting at a point will be in equilibrium

B three forces acting at a point can be represented by a triangle, each side being proportional to force

C if three forces acting upon a patticle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium

D if three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two

Review Detailed Answer

Correct Answer: if three forces acting upon a patticle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium

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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

Center of gravity of a thin hollow cone lies on the axis at a height of ___________________?

The center of percussion of the homogeneous rod of length L suspended at the top will be___________________?

Center of gravity of a solid cone lies on the axis at the height _____________________?

The units of moment of inertia of an area are__________________?

Center of percussion is___________________?

The center of gravity of a uniform lamina lies at____________________?

The product of either force of couple with the arm of the couple is called_________________?

According to Lami’s theorem___________________?

D’ Alembert’s principle is used for______________________?

According to law of triangle of forces __________________ ?