Question 1

Molybdenum upto 1.5% is added to cast iron to

Accepted Answer

A) improve strength 
B) reduce wear resistance 
C) increase machinability 
D) all of the above 
A) improve strength 
B) reduce wear resistance 
C) increase machinability 
D) all of the above A

Question 2

Use of flux in melting of magnesium

Accepted Answer

A) separates out impurities 
B) prevents burning of magnesium alloys 
C) facilitates production of sound cstings 
D) all of the above 
A) separates out impurities 
B) prevents burning of magnesium alloys 
C) facilitates production of sound cstings 
D) all of the above D

Question 3

A cupola one metre in diameter and 4 metres in height will melt in one hour about

Accepted Answer

A) 0.5 tonnes of iron 
B) 10 tonnes of iron 
C) 5 tonnes of iron 
D) 2 tonnes of iron 
A) 0.5 tonnes of iron 
B) 10 tonnes of iron 
C) 5 tonnes of iron 
D) 2 tonnes of iron D

Question 4

Which variety of cast iron can be forged?

Accepted Answer

A) Grey cast iron 
B) High silicon cast iron 
C) Wrought iron 
D) All of the above 
A) Grey cast iron 
B) High silicon cast iron 
C) Wrought iron 
D) All of the above

Question 5

The drawback with metallic pattern is

Accepted Answer

A) excessive weight 
B) expensive 
C) difficult to shape 
D) all of the above 
A) excessive weight 
B) expensive 
C) difficult to shape 
D) all of the above

Question 6

As compared to green sand in shell moulding cooling rate of cast metal is slow. Hence as compared to green sand castings, shell moulded castings will have

Accepted Answer

A) larger grain size 
B) smaller grain size 
A) larger grain size 
B) smaller grain size

Question 7

When external features of the castings are important, which of the following method of casting is preferred?

Accepted Answer

A) Die casting 
B) Slush casting 
C) Carbondioxide casting 
D) Dry sand casting 
A) Die casting 
B) Slush casting 
C) Carbondioxide casting 
D) Dry sand casting

Question 8

For producing several similar parts from a single mould the moulding used is

Accepted Answer

A) bench moulding 
B) floor moulding 
C) plate moulding 
D) none of the above 
A) bench moulding 
B) floor moulding 
C) plate moulding 
D) none of the above

Question 9

Which of the following is used to increase refractoriness of sand?

Accepted Answer

A) Graphite 
B) Silica flour 
C) Iron free zirconium 
D) all of the above 
A) Graphite 
B) Silica flour 
C) Iron free zirconium 
D) all of the above

Question 10

A blind riser can be located

Accepted Answer

A) in cheek only 
B) in either cope or drag 
C) in drag 
D) in cope 
A) in cheek only 
B) in either cope or drag 
C) in drag 
D) in cope

Question 11

Generally for the melting of cast iron, electric furnaces are not used because

Accepted Answer

A) cast iron is in the form of broken pieces 
B) It is expensive to use electricity for melting of cast iron 
C) the rate of heating required for melting cast iron connot be provided by electric furnaces 
D) cast iron requires higher temperature for heating 
A) cast iron is in the form of broken pieces 
B) It is expensive to use electricity for melting of cast iron 
C) the rate of heating required for melting cast iron connot be provided by electric furnaces 
D) cast iron requires higher temperature for heating

Question 12

In carbondioxide moulding the pressure of carbondioxide is around

Accepted Answer

A) 500 kg/cm2 
B) 1.5 kg/cm2 
C) 15 kg/cm2 
D) 150 kg/cm2 
A) 500 kg/cm2 
B) 1.5 kg/cm2 
C) 15 kg/cm2 
D) 150 kg/cm2

Question 13

The property of the foundry sand which enables it to adhere to the surface of other materials is termed

Accepted Answer

A) Cohesiveness 
B) Adhesiveness 
C) Either of (
A)  or (
B)  
A) Cohesiveness 
B) Adhesiveness 
C) Either of (
A)  or (
B)

Question 14

Metal moulds are used in all of the following EXCEPT

Accepted Answer

A) Investment casting 
B) Permanent mould casting 
C) Centrifugal casting 
D) Die casting process 
A) Investment casting 
B) Permanent mould casting 
C) Centrifugal casting 
D) Die casting process

Question 15

Shell patterns are often used for

Accepted Answer

A) pipe work 
B) bends 
C) drainage fittings 
D) all of the above 
A) pipe work 
B) bends 
C) drainage fittings 
D) all of the above

Question 16

Shaving of die casted parts is the process of removal of

Accepted Answer

A) sprue 
B) flash 
C) runner 
D) none of the above 
A) sprue 
B) flash 
C) runner 
D) none of the above

Question 17

A blast furnace operates continuously for

Accepted Answer

A) weeks together 
B) days together 
C) hours together 
D) months together 
A) weeks together 
B) days together 
C) hours together 
D) months together

Question 18

The solidification shrinkage of magnesium alloys is about

Accepted Answer

A) 4 percent 
B) 1 percent 
C) 0.1 percent 
D) 14 percent 
A) 4 percent 
B) 1 percent 
C) 0.1 percent 
D) 14 percent

Question 19

A pit furnace can be used for the melting of

Accepted Answer

A) cast iron 
B) brass 
C) aluminium 
D) all of the above 
A) cast iron 
B) brass 
C) aluminium 
D) all of the above

Question 20

Which of the following cast iron is resistant to attack by sea water?

Accepted Answer

A) Low nickel cast iron 
B) Low sulphur cost iron 
C) Low chromium cast iron 
D) Low phosphorous cast iron 
A) Low nickel cast iron 
B) Low sulphur cost iron 
C) Low chromium cast iron 
D) Low phosphorous cast iron

Molybdenum upto 1.5% is added to cast iron to

Use of flux in melting of magnesium

A cupola one metre in diameter and 4 metres in height will melt in one hour about

Which variety of cast iron can be forged?

The drawback with metallic pattern is

As compared to green sand in shell moulding cooling rate of cast metal is slow. Hence as compared to green sand castings, shell moulded castings will have

When external features of the castings are important, which of the following method of casting is preferred?

For producing several similar parts from a single mould the moulding used is

Which of the following is used to increase refractoriness of sand?

A blind riser can be located

Generally for the melting of cast iron, electric furnaces are not used because

In carbondioxide moulding the pressure of carbondioxide is around

The property of the foundry sand which enables it to adhere to the surface of other materials is termed

Metal moulds are used in all of the following EXCEPT

Shell patterns are often used for

Shaving of die casted parts is the process of removal of

A blast furnace operates continuously for

The solidification shrinkage of magnesium alloys is about

A pit furnace can be used for the melting of

Which of the following cast iron is resistant to attack by sea water?

Foundry Processes and Materials

Foundry and Casting

Casting Techniques and Processes

Foundry and Casting Processes: Properties, Tools, and Methods

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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Exam 5: Casting and Foundry Technology

Molybdenum upto 1.5% is added to cast iron to

Use of flux in melting of magnesium

A cupola one metre in diameter and 4 metres in height will melt in one hour about

Which variety of cast iron can be forged?

The drawback with metallic pattern is

As compared to green sand in shell moulding cooling rate of cast metal is slow. Hence as compared to green sand castings, shell moulded castings will have

When external features of the castings are important, which of the following method of casting is preferred?

For producing several similar parts from a single mould the moulding used is

Which of the following is used to increase refractoriness of sand?

A blind riser can be located

Generally for the melting of cast iron, electric furnaces are not used because

In carbondioxide moulding the pressure of carbondioxide is around

The property of the foundry sand which enables it to adhere to the surface of other materials is termed

Metal moulds are used in all of the following EXCEPT

Shell patterns are often used for

Shaving of die casted parts is the process of removal of

A blast furnace operates continuously for

The solidification shrinkage of magnesium alloys is about

A pit furnace can be used for the melting of

Which of the following cast iron is resistant to attack by sea water?

Foundry Processes and Materials

Foundry and Casting

Casting Techniques and Processes

Foundry and Casting Processes: Properties, Tools, and Methods

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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