Refractories and Insulation in Water Tube Boilers

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Which type of monolithic refractory is used in construction of studded water walls?

Castable refractory

Insulating materials

Plastic Chrome Ore (correct)

Mouldable refractory

What is the primary function of insulating materials in relation to refractories?

Increase mechanical strength

Improve resistance to high temperatures

Enhance thermal conductivity

Ensure acceptable working temperatures for the operator (correct)

Where is castable refractory typically placed in a boiler?

Behind water walls and other parts of the boiler (correct)

Around insulating materials

On studded water walls

Where direct exposure to radiant heat takes place

What property does Plastic Chrome Ore have that allows it to be used in studded water walls?

Low thermal conductivity Signup and view all the answers

Which compound is NOT mentioned as an insulating material in the text?

Alumina Signup and view all the answers

Which of the following is NOT a purpose of refractories and insulation in water tube boilers?

Increasing the efficiency of the boiler by enhancing heat transfer Signup and view all the answers

What is the maximum recorded furnace temperature in marine boilers according to the text?

1650°C Signup and view all the answers

Which of the following is an example of an alkaline refractory material?

Lime Signup and view all the answers

What is the potential consequence of mixing acid and alkaline refractory materials at high temperatures?

Formation of salts that destroy the effectiveness of the refractory Signup and view all the answers

Which of the following is NOT a form in which refractory can be installed?

Insulation blankets Signup and view all the answers

Refractories and Insulation in Water Tube Boilers

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Questions and Answers

Which type of monolithic refractory is used in construction of studded water walls?

What is the primary function of insulating materials in relation to refractories?

Where is castable refractory typically placed in a boiler?

What property does Plastic Chrome Ore have that allows it to be used in studded water walls?

Which compound is NOT mentioned as an insulating material in the text?

Which of the following is NOT a purpose of refractories and insulation in water tube boilers?

What is the maximum recorded furnace temperature in marine boilers according to the text?

Which of the following is an example of an alkaline refractory material?

What is the potential consequence of mixing acid and alkaline refractory materials at high temperatures?

Which of the following is NOT a form in which refractory can be installed?

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