Manufacturing Technology (3151912) MCQs

MCQs of Foundary Technology

Showing 1 to 10 out of 125 Questions
1 2 3 4 5 6
1.

What is the function of cores in the casting process?

(a)

To support the pattern
(b)

To provide differential cooling rates at specific portions
(c)

To make holes and cavities
(d)

For ease of flow of the molten material
Answer:

Option (c)

2.

Which of the following is not a property of moulding sand?

(a)

Flowability
(b)

Hardenability
(c)

Green strength
(d)

Dry strength
Answer:

Option (b)

3.

Which of the following is ‘not’ an allowance given to the pattern for casting?

(a)

Shrinkage
(b)

Draft
(c)

Hole
(d)

Machining
Answer:

Option (c)

4.

The life of a pattern is most likely to depend upon which of the following term?

(a)

Number of castings produced
(b)

Type of cooling rate of the casting
(c)

Size of the casting
(d)

Size of the pattern
Answer:

Option (a)

5.

When sand is in its natural moist state it is known as?

(a)

Green sand
(b)

Facing sand
(c)

Loam sand
(d)

Dry sand
Answer:

Option (a)

6.

To prevent heavier and lighter impurities which of the following system is used?

(a)

Skim bob
(b)

Pouring basin
(c)

Strainer
(d)

Riser
Answer:

Option (a)

7.

A permeability of a core should be _________

(a)

Low
(b)

Moderate
(c)

High
(d)

Has no effect on casting
Answer:

Option (c)

8.

The adhesiveness is the property of a sand due to which

(a)

it evolves a great amount of steam and other gases
(b)

the sand grains stick together
(c)

it cling to the sides of a moulding box
(d)

none of these
Answer:

Option (c)

9.

"The property of sand due to which the sand grains stick together, is called"

(a)

collapsibility
(b)

permeability
(c)

cohesiveness
(d)

adhesiveness
Answer:

Option (c)

10.

Green sand is a mixture of

(a)

30% sand and 70% clay
(b)

50% sand and 50% clay
(c)

70% sand and 30% clay
(d)

90% sand and 10% clay
Answer:

Option (c)

Showing 1 to 10 out of 125 Questions
1 2 3 4 5 6