Objective Questions on Mechanical Engineering

(A) Mild steel

(B) Cast iron

(C) Nickel Steel

(D) Wood

122-In a shaper:

(A) Work reciprocates and tool stationary

(B) Work reciprocates and tool moves over them

(C) Work stationary and tool reciprocates

(D) Work stationary and tool moves over them

123-The following semi-circular key is used for transmitting light torque:

(A) Feather key

(D) Woodruff key

124-The actual difference between the surface speed of the belt and pulley is:

(A) Creep

(B) Slip

(C) Dressing

(D) None of these

125-The ratio of pitch circle diameter to the number of teeth of the gear is:

(A) Pitch

(B) Pitch circle

(C) Root depth

(D) Module

126-The jockey pulley or idler pulley is fitted:

(A) Near the driver pulley on the tension side of the belt

(B) Near the driven pulley on the tension side of the belt

(C) Near the driver pulley on the slack side of the belt

(D) Near the driven pulley on the slack side of the belt

127-The fast pulley is a pulley which:

(A) Runs fast

(B) Runs independently

(C) Has grooved pulley

(D) Is fitted on the shaft

128-The trimmed size (in mm) of A3 drawing sheet is:

(A) 297 x 420

(B) 210 x 297

(C) 148 x 210

(D) 420 x 594

129-Which type of drawing shows the front of the object in true position?

(A) Oblique projection

(B) Perspective projection

(C) Isometric projection

(D) None of these

130-When the object is cut by a section plane parallel to HP and perpendicular to VP. Then the section view of the object is obtained in:

(A) Right side view

(B) Left side view

(C) Plan

(D) Elevation

131-If an object lies in third quadrant, its position with respect to reference plane will be:

(A) In front of VP, above HP

(B) In front of VP, below HP

(C) Behind VP, above HP

(D) Behind VP, below HP

132-‘Rag bolt’ is a type of:

(A) Welding bolt

(B) Foundation bolt

(C) Heavy duty bolt

(D) Locking bolt