SECTION-1

##### Q61. Which two of the following parameters need standardisation for main drives?

(a) power
(b) speed range of the main drive
(c) diameter of job
(d) only (a) and (b)

Ans:(d) only (a) and (b)

##### Q62. Which of the following factors are effected by vibrations?

(a) work-piece
(b) machine tool
(c) tool-life
(d) all of the above

Ans:(d) all of the above

##### Q63. The common ratio φ for spindle speeds is geometrical progression lies between

(a) 2.0 to 4.0
(b) 1.0 to 2.0
(c) 0.5 to 1.0
(d) 0.1 to 0.5.

Ans:(b) 1.0 to 2.0

##### Q64. If the cutting speed is constant, then with the increase of diameter of the job, the speed of spindle

(a) increases
(b) decreases
(c) remains constant
(d) first increases then decreases.

Ans:(b) decreases

##### Q65. For a constant speed of spindle, the relation between cutting speed and diameter of the job is

(a) parabolic
(b) a straight line
(c) hyperbolic
(d) none of the above.

Ans:(b) a straight line

##### Q66. Ray diagram is a graph showing the relation between

(a) cutting speed and speed of spindle
(b) cutting speed and diameter of work-piece
(c) diameter of work-piece and spindle speed
(d) cutting speed, diameter of job and spindle speed.

Ans:(d) cutting speed, diameter of job and spindle speed.

(a) 4.0 mm
(b) 5.0 mm
(c) 5.5 mm
(d) 6.0 mm.

Ans:(b) 5.0 mm

(a) broaching
(b) milling
(c) sawing
(d) boring.

Ans:(c) sawing

(a) 1.5 mm
(b) 3.0 mm
(c) 6.25 mm
(d) 8.0 mm.

Ans:(c) 6.25 mm

##### Q70. The average thickness of the cut in one travel of the band saw is

(a) 1.5 mm
(b) 3.0 mm
(c) 6.25 mm
(d) 8.0 mm.

Ans:(a) 1.5 mm

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Manufacturing and Production technology MCQ – Section-1

Manufacturing and Production technology MCQ – Section-2

Manufacturing and Production technology MCQ – Section-3

Manufacturing and Production technology MCQ – Section-4

Manufacturing and Production technology MCQ – Section-5