Heating Boiler & Heating System Controls 2

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Question 1 of 1

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181248

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The thermal element of a hot water boiler limit control:

Select the correct answer(s).

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181249

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In a self-contained control system the energy for operation is provided by:

Select the correct answer(s).

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181250

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Prior to a boiler safety valve popping during routine boiler operation:

Select the correct answer(s).

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181251

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Which of the following is NOT a final control device for a heating system?

Select the correct answer(s).

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181252

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Quickly closing the main burner manual cock valve during boiler operation should trip the:

Select the correct answer(s).

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181253

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The bimetal sensing element consists of a strip made up of two thin layers of metal with:

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181254

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Which of the following is NOT an advantage of electrical control systems?

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181255

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An electric boiler feedwater valve will:

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181257

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A low air pressure fuel cut-off switch:

Select the correct answer(s).

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181258

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The feedwater supply to most steam heating boilers is usually controlled by a:

Select the correct answer(s).

(0/0)

181259

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A device consisting of a solenoid coil which operates load carrying contacts when the coil is energized is termed:

Select the correct answer(s).

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181260

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A high gas pressure fuel cut-off switch:

Select the correct answer(s).

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181261

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Which of the following is also known as a "cad" cell?

Select the correct answer(s).

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181262

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An example of final control device for a heating system is a:

Select the correct answer(s).

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181263

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A steam heating boiler is found cycling due to the cut-in and cut-out points on the ON-OFF control being set too close. To correct this problem you will:

Heating Boiler & Heating System Controls 2

Question 1 of 1

Time Left

The thermal element of a hot water boiler limit control:

Select the correct answer(s).

(0/0)

In a self-contained control system the energy for operation is provided by:

Select the correct answer(s).

(0/0)

Prior to a boiler safety valve popping during routine boiler operation:

Select the correct answer(s).

(0/0)

Which of the following is NOT a final control device for a heating system?

Select the correct answer(s).

(0/0)

Quickly closing the main burner manual cock valve during boiler operation should trip the:

Select the correct answer(s).

(0/0)

The bimetal sensing element consists of a strip made up of two thin layers of metal with:

Select the correct answer(s).

(0/0)

Which of the following is NOT an advantage of electrical control systems?

Select the correct answer(s).

(0/0)

An electric boiler feedwater valve will:

Select the correct answer(s).

(0/0)

A low air pressure fuel cut-off switch:

Select the correct answer(s).

(0/0)

The feedwater supply to most steam heating boilers is usually controlled by a:

Select the correct answer(s).

(0/0)

A device consisting of a solenoid coil which operates load carrying contacts when the coil is energized is termed:

Select the correct answer(s).

(0/0)

A high gas pressure fuel cut-off switch:

Select the correct answer(s).

(0/0)

Which of the following is also known as a "cad" cell?

Select the correct answer(s).

(0/0)

An example of final control device for a heating system is a:

Select the correct answer(s).

(0/0)

A steam heating boiler is found cycling due to the cut-in and cut-out points on the ON-OFF control being set too close. To correct this problem you will:

Select the correct answer(s).

(0/0)

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