Engineering Mechanics MCQ Questions & Answers | Mechanical Engineering

A. 20 N

B. 40 N

C. 120 N

D. None of these

A. Bears a constant ratio to the normal reaction between the two surfaces

B. Is independent of the area of contact, between the two surfaces

C. Always acts in a direction, opposite to that in which the body tends to move

D. All of the above

A. $$\frac{{{{\text{m}}_1}{{\text{m}}_2}{\text{g}}}}{{{{\text{m}}_1} + {{\text{m}}_2}}}$$

B. $$\frac{{2{{\text{m}}_1}{{\text{m}}_2}{\text{g}}}}{{{{\text{m}}_1} + {{\text{m}}_2}}}$$

C. $$\frac{{{{\text{m}}_1} + {{\text{m}}_2}}}{{{{\text{m}}_1}{{\text{m}}_2}{\text{g}}}}$$

D. $$\frac{{{{\text{m}}_1} + {{\text{m}}_2}}}{{2{{\text{m}}_1}{{\text{m}}_2}{\text{g}}}}$$

A. The same as centre of gravity

B. The point of suspension

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

D. None of the above

A. Will

B. Will not

C. Either A or B

D. None of these

A. N-m

B. m/s

C. m/s²

D. rad/s²

A. M/min

B. Rad/s

C. Revolutions/min

D. Both (B) and (C)

A. Kilogram

B. Newton

C. Watt

D. Dyne

A. Newton

B. Erg

C. Kg-m

D. Joule

A. Gravitational pull exerted by the earth

B. Forces experienced by body in atmosphere

C. Force of attraction experienced by particles

D. Gravitational force of attraction towards the centre of the earth