Manufacturing Technology (3151912) MCQs

MCQs of Foundary Technology

Showing 61 to 70 out of 125 Questions
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61.

The low permeability in sand can cause which of the following defects in casting

(a)

Rough surface
(b)

Blow holes   
(c)

hot tears  
(d)

Drop
Answer:

Option (b)

62.

The property of sand due to which gas and steam escapes from sand is

(a)

cohesiveness  
(b)

adhesiveness  
(c)

permeability
(d)

permeability
Answer:

Option (c)

63.

Riddle is

(a)

A round sieve
(b)

 A long, flat metal plate fitted with an offset handle
(c)

Used to make or repair comers in a mould
(d)

Used to scoop sand deep in the mould
Answer:

Option (a)

64.

Strength and permeability of served sand are related to

(a)

Grain size
(b)

Clay-content
(c)

Hardness
(d)

Moisture content 
Answer:

Option (d)

65.

Distortion allowance is not provided in the following shape of casting.

(a)

Flowability
(b)

Hardenability
(c)

Green strength
(d)

Dry strength
Answer:

Option (b)

66.

According to their use, which of the following is not a type of moulding sand?

(a)

green sand 
(b)

dry sand 
(c)

loam sand 
(d)

wet sand
Answer:

Option (d)

67.

A big advantage of using synthetic sand in foundry shop is that

(a)

 It is less costly
(b)

Its properties can be controlled easily 
(c)

It possesses high moisture
(d)

 It possesses high % of clay
Answer:

Option (b)

68.

Facing sand used in foundry work comprises of

(a)

Alumina, silica and clay
(b)

Silica and clay
(c)

Clay and alumina
(d)

Silica and alumina
Answer:

Option (b)

69.

Which of the following sand is applied directly next to the surface of the pattern?

(a)

green sand 
(b)

parting sand 
(c)

 loam sand
(d)

core sand
Answer:

Option (b)

70.

Green sand consists of

(a)

70% sand and 30% clay
(b)

40% sand and 60% clay
(c)

30% sand and 70% clay
(d)

60% sand and 40% clay
Answer:

Option (a)

Showing 61 to 70 out of 125 Questions
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