How much time (in a minute) is usually required for the passing of CO2 through the mould?

A) one B) two C) five D) seven A) one B) two C) five D) seven A

Which of the following additives are added to the sand in CO2 moulding for the improvement in collapsibility of the sand?

A) copper oxide B) wood flour C) aluminium oxide D) oil A) copper oxide B) wood flour C) aluminium oxide D) oil

Exam 3: Casting Processes and Three Phase Induction Motors

Two three phase induction motors A and B are identical in all respects except that motor A has a larger air-gap than motor B. Which motor will have more no load current?

Free

(Multiple Choice)

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Question 1

Correct Answer:

Verified

Which gas defect is caused by hydrogen in molten metal?

Free

(Multiple Choice)

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Question 2

Correct Answer:

Verified

How much time (in a minute) is usually required for the passing of CO₂ through the mould?

Free

(Multiple Choice)

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(28)

Question 3

Correct Answer:

Verified

During melting process flux is added to react with impurities to form?

(Multiple Choice)

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Question 4

Which of the following defect is not a gas defect?

(Multiple Choice)

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Question 5

CO₂ moulding process is an ideal process, where speed and flexibility is the prime requirement.

(True/False)

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Question 6

Defects caused by the chilling of the casting are known as?

(Multiple Choice)

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Question 7

Cuts, washes, swell, drop etc. are the examples of which of the following casting defects?

(Multiple Choice)

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Question 8

The direction of rmf when a three phase supply is given to stator of three phase induction motor is?

(Multiple Choice)

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Question 9

Moisture from the mould can be removed by using of dryer or heater in CO₂ moulding.

(True/False)

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(37)

Question 10

Two three phase induction motors A and B are identical in all respects except that motor A has a larger air-gap than motor B. Which motor will have poorer power factor?

(Multiple Choice)

4.7/5

(42)

Question 11

Which of the following additives are added to the sand in CO₂ moulding for the improvement in collapsibility of the sand?

(Multiple Choice)

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Question 12

It is very safe to use CO₂ in CO₂ moulding, so it eliminates the use of any shielding apparatus.

(True/False)

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Question 13

A three phase induction motor is sometimes calles a generalized transformer in so far as voltage and frequency transformation has been concerned. How a three phase induction motor operates when rotor frequency is equal to stator frequency?

(Multiple Choice)

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Question 14

The lower fluidity of molten material causes_______________

(Multiple Choice)

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Question 15

When the molten metal leaks out of mould which defect occurs?

(Multiple Choice)

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(42)

Question 16

The speed of rotation is almost double in semi centrifugal casting as compared to the true centrifugal casting.

(True/False)

4.8/5

(34)

Question 17

Defect which occurs due to the solidification of casting is known as?

(Multiple Choice)

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(36)

Question 18

How much percentage of sodium silicate (Na2SiO3) is added to the sand mixture in CO₂ moulding?

(Multiple Choice)

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Question 19

In centrifugal casting, a movable pouring basin is employed for the pouring of molten metal.

(True/False)

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Question 20

Showing 1 - 20 of 25

Two three phase induction motors A and B are identical in all respects except that motor A has a larger air-gap than motor B. Which motor will have more no load current?

Which gas defect is caused by hydrogen in molten metal?

How much time (in a minute) is usually required for the passing of CO₂ through the mould?

During melting process flux is added to react with impurities to form?

Which of the following defect is not a gas defect?

CO₂ moulding process is an ideal process, where speed and flexibility is the prime requirement.

Defects caused by the chilling of the casting are known as?

Cuts, washes, swell, drop etc. are the examples of which of the following casting defects?

The direction of rmf when a three phase supply is given to stator of three phase induction motor is?

Moisture from the mould can be removed by using of dryer or heater in CO₂ moulding.

Two three phase induction motors A and B are identical in all respects except that motor A has a larger air-gap than motor B. Which motor will have poorer power factor?

Which of the following additives are added to the sand in CO₂ moulding for the improvement in collapsibility of the sand?

It is very safe to use CO₂ in CO₂ moulding, so it eliminates the use of any shielding apparatus.

A three phase induction motor is sometimes calles a generalized transformer in so far as voltage and frequency transformation has been concerned. How a three phase induction motor operates when rotor frequency is equal to stator frequency?

The lower fluidity of molten material causes_______________

When the molten metal leaks out of mould which defect occurs?

The speed of rotation is almost double in semi centrifugal casting as compared to the true centrifugal casting.

Defect which occurs due to the solidification of casting is known as?

How much percentage of sodium silicate (Na2SiO3) is added to the sand mixture in CO₂ moulding?

In centrifugal casting, a movable pouring basin is employed for the pouring of molten metal.

Pattern Making and Cupola Furnace Melting Process

Casting and Foundry Techniques

Welding and Induction Motor Starting Methods

Welding Processes and Efficiency

Friction Welding, Defects, and Metal Forging Operations

Metal Forming Processes and Techniques

Plastic Manufacturing Processes

Casting and Moulding Processes and Properties

Three Phase Induction Motors and Welding Processes

Metal Forming

Polymer Processing Techniques

Filters

Exam 3: Casting Processes and Three Phase Induction Motors

Two three phase induction motors A and B are identical in all respects except that motor A has a larger air-gap than motor B. Which motor will have more no load current?

Which gas defect is caused by hydrogen in molten metal?

How much time (in a minute) is usually required for the passing of CO2 through the mould?

During melting process flux is added to react with impurities to form?

Which of the following defect is not a gas defect?

CO2 moulding process is an ideal process, where speed and flexibility is the prime requirement.

Defects caused by the chilling of the casting are known as?

Cuts, washes, swell, drop etc. are the examples of which of the following casting defects?

The direction of rmf when a three phase supply is given to stator of three phase induction motor is?

Moisture from the mould can be removed by using of dryer or heater in CO2 moulding.

Two three phase induction motors A and B are identical in all respects except that motor A has a larger air-gap than motor B. Which motor will have poorer power factor?

Which of the following additives are added to the sand in CO2 moulding for the improvement in collapsibility of the sand?

It is very safe to use CO2 in CO2 moulding, so it eliminates the use of any shielding apparatus.

A three phase induction motor is sometimes calles a generalized transformer in so far as voltage and frequency transformation has been concerned. How a three phase induction motor operates when rotor frequency is equal to stator frequency?

The lower fluidity of molten material causes_______________

When the molten metal leaks out of mould which defect occurs?

The speed of rotation is almost double in semi centrifugal casting as compared to the true centrifugal casting.

Defect which occurs due to the solidification of casting is known as?

How much percentage of sodium silicate (Na2SiO3) is added to the sand mixture in CO2 moulding?

In centrifugal casting, a movable pouring basin is employed for the pouring of molten metal.

Pattern Making and Cupola Furnace Melting Process

Casting and Foundry Techniques

Welding and Induction Motor Starting Methods

Welding Processes and Efficiency

Friction Welding, Defects, and Metal Forging Operations

Metal Forming Processes and Techniques

Plastic Manufacturing Processes

Casting and Moulding Processes and Properties

Three Phase Induction Motors and Welding Processes

Metal Forming

Polymer Processing Techniques

Filters

How much time (in a minute) is usually required for the passing of CO₂ through the mould?

CO₂ moulding process is an ideal process, where speed and flexibility is the prime requirement.

Moisture from the mould can be removed by using of dryer or heater in CO₂ moulding.

Which of the following additives are added to the sand in CO₂ moulding for the improvement in collapsibility of the sand?

It is very safe to use CO₂ in CO₂ moulding, so it eliminates the use of any shielding apparatus.

How much percentage of sodium silicate (Na2SiO3) is added to the sand mixture in CO₂ moulding?