Machine Design MCQ Questions & Answers | Mechanical Engineering

A. Decreasing the cross-section area of bar

B. Increasing the cross-section area of bar

C. Remain unaffected with cross-section area

D. Would depend upon other factors

A. Keeping the core diameter of threads equal to the diameter of unthreaded portion of the bolt

B. Keeping the core diameter smaller than the diameter of the unthreaded portion

C. Keeping the nominal diameter of threads equal to the diameter of unthreaded portion of the bolt

D. None of the above

A. Increasing the initial tension in the belt

B. Dressing the belt to increase the coefficient of friction

C. Increasing wrap angle by using idler pulley

D. All of the above methods

A. Tightening it properly

B. Increasing shank diameter

C. Grinding the shank

D. Making shank diameter equal to core diameter of thread

A. Cold working

B. Shot peening

C. Grinding and lapping surface

D. Hot working

A. Bottom side only

B. Top side only

C. On both sides

D. Any side

A. Shoe brake

B. Band and block brake

C. Band brake

D. Internal expanding brake

A. $$\frac{{\text{W}}}{{\text{A}}}$$

B. $$\frac{{\text{W}}}{{2{\text{A}}}}$$

C. $$\frac{{2{\text{W}}}}{{\text{A}}}$$

D. $$\frac{{3{\text{W}}}}{{\text{A}}}$$

A. Right hand

B. Left hand

C. Both A and B

D. None of these

A. Effective

B. Smallest

C. Largest

D. None of these