Manufacturing and Industrial Engineering [GATE (Graduate Aptitude Test in Engineering) Mechanical Engineering (ME)]: Questions 37 - 40 of 606

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Question 37

Appeared in Year: 1993

Question MCQ▾

In ultrasonic machining process, the material removal rate will be higher for materials with

Choices

Choice (4)Response

a.

Higher ductility

b.

Higher toughness

c.

Higher fracture strain

d.

Lower toughness

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Question 38

Appeared in Year: 1995

Question MCQ▾

Light impurities in the molten metal are prevented from reaching the mould cavity by providing a

Choices

Choice (4)Response

a.

Skim bob

b.

Strainer

c.

Button well

d.

None of the above

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Question 39

Appeared in Year: 1996

Question MCQ▾

If at the optimum in a linear programming problem, a dual variable corresponding to a particular primal constraint is zero, then it means that

Choices

Choice (4)Response

a.

The objective function is unbounded

b.

Right hand side of the primal constraint can be altered without affecting the optimum solution

c.

The problem is degenerate

d.

Changing the right hand side of the primal constraint will disturb the optimum solution

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Question 40

Appeared in Year: 2004

Question MCQ▾

Misrun is a casting defect which occurs due to

Choices

Choice (4)Response

a.

Very high pouring temperature of the metal

b.

Improper alignment of the mould flasks

c.

Insufficient fluidity of the molten metal

d.

Absorption of gases by the liquid metal

Edit