MECHANICAL ENGINEERING MCQ SECTION 33

321. A cotter joint is capable of transmitting

(A) The twisting moment

(B) An axial tensile as well as compressive load

(C) The bending moment

(D) Only axial compressive

Answer: -An axial tensile as well as compressive load

322. A fit on a hole- shaft system is specified as H7-s6. The type of fit is

(A) Clearance fit

(B) Running (Sliding) fit

(C) Transition fit

(D) Interference fit

Answer: -Interference fit

323. The effect of increasing the stiffness springs of centrifugal clutch is

(A) The decrease of engagement speed

(B) The increase of engagement speed

(C) The increase of frictional force at maximum speed

(D) None of the above

Answer: -The increase of engagement speed

324. What is the purpose of the flush ( ) function?

(A) Flushes all streams and specified streams

(B) Flushes only specified stream

(C) Flushes input/output buffer

(D) Flushes file buffer

Answer: -Flushes file buffer

325. During orthogonal cutting, an increase in cutting speed causes

(A) An increase in longitudinal cutting force

(B) An increase in radial cutting force

(C) An increase in tangential cutting force

(D) Cutting forces to remain unaffected

Answer: -Cutting forces to remain unaffected

326. Which of the following processes has very high material removal rate efficiency?

(A) Electron beam machining (B) Electrochemical machining

(C) Electro discharge machining (D) Plasma arc machining

Answer: -Plasma arc machining

327. Clearance in a fit is the difference between

(A) Maximum hole size and minimum shaft size

(B) Minimum hole size and maximum shaft size

(C) Maximum hole size and maximum shaft size

(D) Minimum hole size and minimum shaft size

Answer: -Minimum hole size and maximum shaft size

328. In a quantity discount model O inventory control, the relevant costs are

(A) Annual purchase cost

(B) Annual order cost and annual carrying cost

(C) Annual purchase cost, annual order cost and annual carrying cost

(D) Annual order cost

Answer: -Annual purchase cost, annual order cost and annual carrying cost

329. For a floating body, buoyant force acts at the

(A) Centroid of the floating body

(B) Center of gravity of the body

(C) Centroid of the fluid vertically below the body

(D) Centroid of the displaced fluid

Answer: -Centroid of the displaced fluid

330. The non-traditional machining process that essentially requires vacuum is

(A) Electron beam machining

(B) Electro chemical machining

(C) Electro chemical discharge machining

(D) Electro discharge machining

Answer: -Electron beam machining