GATE Mechanical Engineering: Questions 46 - 50 of 68

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Question number: 46

» Manufacturing and Industrial Engineering » Production and Control » Material Requirement Planning

Appeared in Year: 1992

MCQ▾

Question

The two main criteria for selecting the electrolyte in Electrochemical Machining (ECM) is that the electrolyte should

Choices

Choice (4) Response

a.

Not allow dissolution of cathode material

b.

Have high electrical conductivity

c.

Be chemically stable

d.

Both b. and c. are correct

Question number: 47

» Manufacturing and Industrial Engineering » Metal Casting » Design Considerations

Appeared in Year: 2009

Match List-Ⅰ List-Ⅱ▾

Question

Match the items in Column I and Column II.
List-Ⅰ (Column I) List-Ⅱ (Column II)

(A)

Metallic Chills

(i)

Progressive solidification

(B)

Riser

(ii)

Control cooling of critical sections

(C)

Metallic Chaplets

(iii)

Support for the core

(D)

Exothermic Padding

(iv)

Reservoir of the molten metal

Choices

Choice (4) Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (ii)
  • (iv)
  • (i)
  • (iii)

b.

  • (i)
  • (iv)
  • (iii)
  • (ii)

c.

  • (iv)
  • (iii)
  • (i)
  • (ii)

d.

  • (ii)
  • (iii)
  • (iv)
  • (i)

Question number: 48

» Manufacturing and Industrial Engineering » Operation Research » Simplex and Duplex Methods

Appeared in Year: 2010

MCQ▾

Question

Simplex method of solving linear programming problem uses

Choices

Choice (4) Response

a.

Only the interior points in the feasible region

b.

All the points in the feasible region

c.

Intermediate points within the infeasible region

d.

Only the comer points of the feasible region

Question number: 49

» Manufacturing and Industrial Engineering » Operation Research » PERT and CPM Models

Appeared in Year: 2004

MCQ▾

Question

In PERT analysis a critical activity has

Choices

Choice (4) Response

a.

Zero Float

b.

Minimum cost

c.

Maximum cost

d.

Maximum Float

Question number: 50

» Manufacturing and Industrial Engineering » Metal Casting » Solidification and Cooling

Appeared in Year: 2009

MCQ▾

Question

Two streams of liquid metal which are not hot enough to fuse properly result into a casting defect known as

Choices

Choice (4) Response

a.

Cold shut

b.

Swell

c.

Sand wash

d.

Scab

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