57.

58.

89.

60.

61.

62.

68.

The angle which is found between the face of the cutting tool and the normal to the machined
surface at the cutting edge is called :

(ക) rake angle (B) relief angle
(C) clearance angle (D) cutting angle

The hardness with which the bond holds the cutting points or abrasives in place defined by
the term :

(A) structure (B) grit size
(C) grain size (D) grade

Which of the following is not a part of Capstan lathe?
(^) chuck (B) tailstock
(©) spindle (D) 00010080

The gears manufactured on generating principle in :
(ക) hobbing (൫) milling
(C) - broaching (D) shaping

Quick returning mechanism is used in :
(4) milling machine (8) broaching machine
(C) slotting machine (D) lathe machine

During ultrasonic machining the metal removal is achieved by :
(A) high frequency eddy currents
(B) high frequency sound waves
(C) hammering action of abrasive particles
(D) rubbing action between tool and work piece

According to Indian standard specifications the total number of designated grades of
fundamental tolerances are :

ക 8 ® 21
(0 24 ⋅⇁ D) 28
64. In a metric thread designated by M12 x 1.5 specify that the thread has :
(A) cross sectional area 12 mm? and depth 1.5
(B) nominal diameter 12 mm and pitch 1.5
)0 nominal diameter 12 mm and number of threads per mm is 1.5
(D) Pitch 1.5 and depth 12 mm
147/2015 10 A