Question 1

Which inoculant is used to produced ductile iron?

Accepted Answer

A) Graphite 
B) Carbon 
C) Fluorides 
D) Magnesium 
A) Graphite 
B) Carbon 
C) Fluorides 
D) Magnesium D

Question 2

By compacting the sand

Accepted Answer

A) both density as well as permeability decrease 
B) density increases and permeability 
C) both density as well as permeability increase 
D) density decreases and permeability increases 
A) both density as well as permeability decrease 
B) density increases and permeability 
C) both density as well as permeability increase 
D) density decreases and permeability increases B

Question 3

The order of surface finish possible in die castings is

Accepted Answer

A) 0.08 microns 
B) 0.008 microns 
C) 0.0008 microns 
D) 0.8 microns 
A) 0.08 microns 
B) 0.008 microns 
C) 0.0008 microns 
D) 0.8 microns D

Question 4

In die castings, heavy local sections are usually avoided and replaced by

Accepted Answer

A) channel sections 
B) corrugated forms 
C) ribs 
D) any of the above 
A) channel sections 
B) corrugated forms 
C) ribs 
D) any of the above

Question 5

For grey cast iron the pouring temperature is

Accepted Answer

A) 1400 to 1465°C 
B) 1455 to 1495°C 
C) 1250 to 1290°C 
D) 1510 to 1532°C 
A) 1400 to 1465°C 
B) 1455 to 1495°C 
C) 1250 to 1290°C 
D) 1510 to 1532°C

Question 6

The water content of green sand is usually

Accepted Answer

A) 1 to 2 percent 
B) 20 to 25 percent 
C) 6 to 8 percent 
D) 12 to 18 percent 
A) 1 to 2 percent 
B) 20 to 25 percent 
C) 6 to 8 percent 
D) 12 to 18 percent

Question 7

The advantage of investment casting is

Accepted Answer

A) high degree of accuracy 
B) adaptability to casting of most of the metals 
C) complex shaped articles can be cast 
D) all of the above 
A) high degree of accuracy 
B) adaptability to casting of most of the metals 
C) complex shaped articles can be cast 
D) all of the above

Question 8

Distortion in castings can be reduced by

Accepted Answer

A) modifying design 
B) providing sufficient machining allowance 
C) improving foundry practice 
D) all of the above 
A) modifying design 
B) providing sufficient machining allowance 
C) improving foundry practice 
D) all of the above

Question 9

The contraction allowance for magnesium is around

Accepted Answer

A) 5 mm/metre 
B) 14 mm/metre 
C) 25 mm/metre 
D) 1 mm/metre 
A) 5 mm/metre 
B) 14 mm/metre 
C) 25 mm/metre 
D) 1 mm/metre

Question 10

The hardness of the mould is affected by the proportion of ingredients in the sand and

Accepted Answer

A) degree of ramming 
B) the temperature 
C) shape of particles 
D) refractoriness 
A) degree of ramming 
B) the temperature 
C) shape of particles 
D) refractoriness

Question 11

Composition of cast iron can be better controlled when melted in

Accepted Answer

A) pit furnace 
B) cupola 
C) arc furnace 
D) none of the above 
A) pit furnace 
B) cupola 
C) arc furnace 
D) none of the above

Question 12

Permeability of sand decreases as

Accepted Answer

A) permeability increases 
B) moisture content increases 
C) bonding content increases 
D) all of the above 
A) permeability increases 
B) moisture content increases 
C) bonding content increases 
D) all of the above

Question 13

The sand mass does not fall out of the moulding box but is held firmly in it when the moulding box is lifted. This is due to the property of

Accepted Answer

A) adhesiveness of sand 
B) plasticity of sand 
C) porosity of sand 
D) refractoriness of sand 
A) adhesiveness of sand 
B) plasticity of sand 
C) porosity of sand 
D) refractoriness of sand

Question 14

On the interior surfaces the draft allowance is usually

Accepted Answer

A) 40 to 60 mm/metre 
B) 10 to 20 mm/metre 
C) 100 to 120 mm/metre 
D) 200 to 225 mm/metre 
A) 40 to 60 mm/metre 
B) 10 to 20 mm/metre 
C) 100 to 120 mm/metre 
D) 200 to 225 mm/metre

Question 15

Which of the following facilitates shaking and lifting large pattern from the mould?

Accepted Answer

A) Swab 
B) Bellows 
C) Trowel 
D) Ripping plate 
A) Swab 
B) Bellows 
C) Trowel 
D) Ripping plate

Question 16

In furan process, furan resins are primarily used as

Accepted Answer

A) binders 
B) chemicals for exothermic reactions 
C) fluxes 
D) none of the above 
A) binders 
B) chemicals for exothermic reactions 
C) fluxes 
D) none of the above

Question 17

Annealing of aluminium castings

Accepted Answer

A) improves ductility 
B) relieves micro stresses 
C) reduces tensile strength 
D) mechanical properties change 
A) improves ductility 
B) relieves micro stresses 
C) reduces tensile strength 
D) mechanical properties change

Question 18

Tin coated low carbon steel chaplets are used in

Accepted Answer

A) ferrous foundries 
B) non-ferrous foundries 
C) both (
A)  and (
B)  above 
A) ferrous foundries 
B) non-ferrous foundries 
C) both (
A)  and (
B)  above

Question 19

In die casting

Accepted Answer

A) there is no need of air venting 
B) there is no restriction of material, any material that can be poured can be cast 
C) the product surface is smooth and clean without the parting line 
D) the heat loss from molten metal is fast as the mould is metallic 
A) there is no need of air venting 
B) there is no restriction of material, any material that can be poured can be cast 
C) the product surface is smooth and clean without the parting line 
D) the heat loss from molten metal is fast as the mould is metallic

Question 20

Core prints are

Accepted Answer

A) made separately in the mould by hand 
B) made in the mould be separate pattern 
C) attached to pattern 
D) none of the above 
A) made separately in the mould by hand 
B) made in the mould be separate pattern 
C) attached to pattern 
D) none of the above

Which inoculant is used to produced ductile iron?

By compacting the sand

The order of surface finish possible in die castings is

In die castings, heavy local sections are usually avoided and replaced by

For grey cast iron the pouring temperature is

The water content of green sand is usually

The advantage of investment casting is

Distortion in castings can be reduced by

The contraction allowance for magnesium is around

The hardness of the mould is affected by the proportion of ingredients in the sand and

Composition of cast iron can be better controlled when melted in

Permeability of sand decreases as

The sand mass does not fall out of the moulding box but is held firmly in it when the moulding box is lifted. This is due to the property of

On the interior surfaces the draft allowance is usually

Which of the following facilitates shaking and lifting large pattern from the mould?

In furan process, furan resins are primarily used as

Annealing of aluminium castings

Tin coated low carbon steel chaplets are used in

In die casting

Core prints are

Foundry Processes and Materials

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Casting and Moulding Processes: Part A

Casting and Moulding Processes: Part B

Foundry Processes and Techniques

Casting Processes and Materials

Casting and Moulding Processes: Techniques and Defects

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Exam 3: Casting Techniques and Processes

Which inoculant is used to produced ductile iron?

By compacting the sand

The order of surface finish possible in die castings is

In die castings, heavy local sections are usually avoided and replaced by

For grey cast iron the pouring temperature is

The water content of green sand is usually

The advantage of investment casting is

Distortion in castings can be reduced by

The contraction allowance for magnesium is around

The hardness of the mould is affected by the proportion of ingredients in the sand and

Composition of cast iron can be better controlled when melted in

Permeability of sand decreases as

The sand mass does not fall out of the moulding box but is held firmly in it when the moulding box is lifted. This is due to the property of

On the interior surfaces the draft allowance is usually

Which of the following facilitates shaking and lifting large pattern from the mould?

In furan process, furan resins are primarily used as

Annealing of aluminium castings

Tin coated low carbon steel chaplets are used in

In die casting

Core prints are

Foundry Processes and Materials

Foundry and Casting

Foundry and Casting Processes: Properties, Tools, and Methods

Casting and Foundry Technology

Foundry Operations and Techniques

Casting and Moulding Processes: Part A

Casting and Moulding Processes: Part B

Foundry Processes and Techniques

Casting Processes and Materials

Casting and Moulding Processes: Techniques and Defects

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