MCQs of Basic Machine Tools and Metal Cutting Principles (Manufacturing Processes - 3141908)

Manufacturing Processes (3141908) MCQs

MCQs of Basic Machine Tools and Metal Cutting Principles

Showing 31 to 40 out of 100 Questions

31.

Force exerted by workpiece on-chip in the normal direction of the shear plane is known as

(a)	Cutting force
(b)	Frictional resistance
(c)	Backing up force
(d)	Shear force

32.

Metal resistance to shear during chip formation is known as

(a)	Cutting force
(b)	Frictional resistance
(c)	Backing up force
(d)	Shear force

33.

The horizontal force exerted by the tool on the workpiece is known as

(a)	Cutting force
(b)	Frictional resistance
(c)	Backing up force
(d)	Shear force

34.

Which of the following is the correct relation for the shear angle ‘φ’? Given that: φ=shear angle, α=rake angle

(a)	tan φ= cosα/(1-r*sinφ)
(b)	tan φ= rcosα/(1-r*sinφ)
(c)	tan φ= rcosα/(1-sinφ)
(d)	tan φ= cosα/(r-r*sinφ)

35.

If t1 denotes the uncut chip thickness and t2 denotes cut chip thickness ratio then, which of the following equation is correct about chip thickness ratio ‘r’?

(a)	r=t1/t2
(b)	r=t2/t1
(c)	r=t1 x t2
(d)	None of the mentioned

36.

Which of the following is correct about the chip thickness ratio ‘r’?

(a)	r<1
(b)	r=1
(c)	r>1
(d)	None of the mentioned

37.

What is the optimum value of side cutting edge in degrees for maximum tool life?

(a)	20
(b)	22
(c)	25
(d)	30

38.

With an increase in rake angle of the tool, tool life will

(a)	Increase
(b)	Decrease
(c)	Remains constant
(d)	First, increase then decrease

39.

With an increase in side cutting edge angle keeping the width of cut constant, depth of cut will

(a)	Increase
(b)	Decrease
(c)	First, increase then decrease
(d)	Remains constant

40.

Which of the following tool will give the best result for machining of brass?

(a)	Large positive rake angle tools
(b)	Large negative rake angle tools
(c)	Zero rake angle tools
(d)	Small point angle tools

Showing 31 to 40 out of 100 Questions