Manufacturing and Industrial Engineering-Metal Casting (GATE Mechanical Engineering): Questions 19 - 23 of 24

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Question number: 19

» Manufacturing and Industrial Engineering » Metal Casting » Design of Patterns

Appeared in Year: 2006

MCQ▾

Question

An expendable pattern is used in

Choices

Choice (4) Response

a.

Slush casting

b.

Investment casting

c.

Squeeze casting

d.

Centrifugal casting

Question number: 20

» Manufacturing and Industrial Engineering » Metal Casting » Design of Patterns

Appeared in Year: 2001

MCQ▾

Question

Shrinkage allowance on pattern is provided to compensate for shrinkage when

Choices

Choice (4) Response

a.

The temperature of solid phase drops from freezing to room temperature

b.

The metal changes from liquid to solid state at freezing temperature

c.

The temperature of metal drops from pouring to room temperature

d.

The temperature of liquid metal drops from pouring to freezing temperature

Question number: 21

» Manufacturing and Industrial Engineering » Metal Casting » Design of Patterns

Appeared in Year: 2011

MCQ▾

Question

A cubic casting of 50 mm side undergoes volumetric solidification shrinkage and volumetric solid contraction of 4 % and 6 % respectively. No riser is used. Assume uniform cooling in all directions. The side of the cube after solidification and contraction is

Choices

Choice (4) Response

a.

49.90 mm

b.

49.94 mm

c.

49.96 mm

d.

48.32 mm

Question number: 22

» Manufacturing and Industrial Engineering » Metal Casting » Design of Patterns

Appeared in Year: 2008

MCQ▾

Question

While cooling, a cubical casting of side 40 mm undergoes 3%, 4 % and 5 % volume shrinkage during the liquid state, phase transition and solid state, respectively. The volume of metal compensated from the riser is

Choices

Choice (4) Response

a.

7%

b.

2%

c.

8%

d.

9%

Question number: 23

» Manufacturing and Industrial Engineering » Metal Casting » Design Considerations

Appeared in Year: 2002

MCQ▾

Question

The primary purpose of a sprue in a casting mould is to

Choices

Choice (4) Response

a.

Feed the casting at a rate consistent with the rate of solidification

b.

Feed molten metal from the pouring basin to the gate

c.

Act as a reservoir for molten metal

d.

Help feed the casting until all solidification takes place

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