Which of the following operations is carried out at a minimum cutting velocity if the machines are equally rigid and the tool work materials are the same?

A machine P can print out one lakh books in 8 hours. Machine Q can print the same number of books in 10 hours while machine R can print them in 12 hours. All the machines are started at 9 A.M.While machine P is stopped at 11 A.M. and remaining two machines completed the work. Approximately at what at what time will the work time (to print one lakh books) be finished?

A

11.30 Am

B

12 Noon

C

12.30 Pm

D

11.35 am

A machine P can paint one lakh books in 8 hours; machine Q can print the same number of books in 10 hours while machine R can print them in 12 hours. All the machines started operating at 9 A. M. while machine P is stopped at 11 A. M. and the reamaining two machines completed the work. Approximately at what time will the work (to print one lakh books) be finished?

A

11:30 A. M

B

12:00 noon

C

12:30 P. M.

D

1:00 P. M.

In a ________, both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram.

A

Simple die

B

Progressive die

C

Combination die

D

Compound die

As the cutting speed increases, the tool cutting forces

A

Remain constant

B

Increases

C

Decreases

D

First increases and then decreases

In oblique cutting system, the cutting edge of the tool

A

May clear the width of the workpiece

B

May or may not clear the width of the workpiece

C

May not clear the width of the workpiece

D

Should always clear the width of the workpiece

In oblique cutting of metals, the cutting edge of the tool is

A

Perpendicular to the workpiece

B

Perpendicular to the direction of tool travel

C

Parallel to the direction of tool travel

D

Inclined at an angle less than 90° to the direction of tool travel

The vector sum of cutting velocity and chip velocity is __________ shear velocity.

A

Equal to

B

Less than

C

More than

D

None of these

The angle made by the face of the tool and the plane parallel to the base of cutting tool is called

A

Rake angle

B

Cutting angle

C

Clearance angle

D

Lip angle

In a prismatic member made of two materials so joined that they deform equally under axial stress, the unit stresses in two materials are

A

Equal

B

Proportional to their respective moduli of elasticity

C

Inversely proportional to their moduli of elasticity

D

Average of the sum of moduli of elasticity

Eight people are planning to share equally the cost of a rental car . If one person withdraws from the arrangement and the others share equally the entire cost of the car ,then the share of each of the remaining persons will be increased by -

A

1/7

B

1/85

C

7/8

D

1/2

Which of the following operations is carried out at a minimum cutting velocity if the machines are equally rigid and the tool work materials are the same?

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