GATE Mechanical Engineering: Questions 60 - 64 of 68

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 68 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 100.00 or

Question number: 60

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

Appeared in Year: 1992

MCQ▾

Question

In a green sand moulding process, uniform ramming leads to

Choices

Choice (4) Response

a.

Less sand expansion type of casting defect

b.

Greater dimensional stability of the casting

c.

Less chance of gas porosity

d.

Uniform flow of molten metal into the mould cavity

Question number: 61

» Manufacturing and Industrial Engineering » Metal Casting » Riser and Gating Design

Appeared in Year: 1995

MCQ▾

Question

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.

All of the above

Question number: 62

» Manufacturing and Industrial Engineering » Metal Casting » Design Considerations

Appeared in Year: 2004

MCQ▾

Question

Misrun is a casting defect which occurs due to

Choices

Choice (4) Response

a.

Absorption of gases by the liquid metal

b.

Insufficient fluidity of the molten metal

c.

Very high pouring temperature of the metal

d.

Improper alignment of the mould flasks

Question number: 63

» 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: 64

» 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

f Page
Sign In