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ADVANCED ENGINEER TRAINING I (Third-Class Upgrade) > Test 3 Multiple Choice > Flashcards

Test 3 Multiple Choice Flashcards

1
Q

Oxygen and other noncondensable gases are separated from the feedwater______

In the closed feedwater heater

In the economizer

In the open dearator feedwater heater

A

In the open deaerator feedwater heater

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2
Q

Steam is extracted from the turbine after it has passed through some of the turbine stages to

Reduce back pressure

Increase back pressure

Prevent excessive speed withing the turbine

Be used for process work in the plant

A

Be used for process work in the plant

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3
Q

A surface condenser has water____.

And steam mixed together to create a vacuum

Passed through tubes to cause steam to condensate causing a vacuum

A

Passed through tubes to cause steam to condensate causing a vacuum

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4
Q

A draft fan located between the boiler and chimney is used in a ______ draft system

Natural

Forced

Induced

Furnace induction

A

Induced

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5
Q

When steam is superheated it has_______

A higher pressure thus producing more power

A large volume

More heat energy thus producing more work

A higher temperature and pressure

A

More heat energy thus producing more work

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6
Q

A vacuum on the exhaust side of the turbine

Reduce back pressure and steam flow rate

Reduce back pressure and increase water rate

Prevents excessive speed withing the turbine

Vacuum is never allowed on the turbine

A

Reduces back pressure and steam flow rate

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7
Q

The open feedwater heater is located

Above the feedwater pump

Below the feedwater pump

After the closed feedwater heater

A

Above the feedwater pump

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8
Q

Draft is defined as a difference in pressure that causes.

Air or gases to flow

A balance of pressure

A back pressure

A

Air or gases to flow

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9
Q

Air is mixed inside of the burner register in a_______gas system

Low pressure

High pressure

Equalizing

Fuel oil

A

High pressure

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10
Q

Gas leak should be located and repaired by a. ______

Boiler operator

Shift foreman

Fuel superintendent

Gas company representative

A

Gas company representative

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11
Q

Water weights approximately_____lb/gal

2

  1. 4
  2. 3

10

A

8.3

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12
Q

A______ pump returns condensate from the system back to the boiler

Fuel oil

Return

Gear

Vacuum

A

Vacuum

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13
Q

The feedwater ______ valve opens and closes automatically

Return

Bypass

Check

Equalizing

A

Check

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14
Q

An auxiliary low water fuel cutoff is installed

Slightly above the NOWL

Slightly below the primary low water fuel cutoff

At the highest point on the boiler

A

Slightly below the primary low water fuel cutoff

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15
Q

The______ maintain a constant water level in the boiler

Gauge glass

Water column

Blowdown tank

Feedwater regulator

A

Feedwater regulator

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16
Q

The low water fuel cutoff should be tested_____

Daily

Monthly

Semiannually

Annually

A

Daily

17
Q

A______valve controls fluid flow by turning the valve handle to raise or lower the valve disc

Safety

Pressure relief

Glove

Backflow preventer

A

Glove

18
Q

The most common feedwater pump is a____feedwater pump driven by an electric motor

Steam rotary

Generator

Centrifugal

Piston activated

A

Centrifugal

19
Q

The purpose of the feedwater regulator is to________

Shut the boiler in the event of low water

Maintain a consistent water level in the boiler

A

Maintain a consistent water level in the boiler

20
Q

The automatic makeup water feeder is located

Slightly below the NOWL

On the feedwater heater

A

Slightly below the NOWL

21
Q

Feedwater regulator sensing elements are located

On the steam line

On the water line

At the NOWL

A

At the NOWL

22
Q

Water temperature that is too low in the open feewater heater could cause____

Oxygen pitting in the boiler

Thermal shock in the boiler

A

Oxygen pitting in the boiler

23
Q

Burning a fuel releases_____

Solar energy

Hydrogen gas

Heat energy

A

Heat energy

24
Q

A vent line on a fuel oil tank prevents____

Loss of suction

Pressure buildup

Loss of pressure

A

Pressure buildup

25
Q

A high suction line on a fuel oil tank is used when_____

The tank is full

The tank is low on fuel

Signs of sludge and water are evident in the tank

A

Signs of sludge and water are evident in the tank

26
Q

The pneumercartor is used to_____

Indicate the fuel oil level in the tank

Supply primary air to the burner

Indicate gallons of makeup water used

A

Indicate the fuel oil level in the tank

27
Q

An indication of a dirty fuel oil strainer would be_______across the strainer

A large pressure drop

An equalizing of pressure

A slight pressure drop

No change in pressure

A

A large pressure drop

28
Q

Fuel oil heaters must be protected from excessive fuel oil pressure because they are located______in the pumps

Above

On the suction side

On the discharge side

They need no protection due to control line

A

On the discharge side

29
Q

A gas pressure regulator is used to control the______

Flow of gases of combustion

Desired set pressure at the burner

Air flow going to the burner

Mixture of air and gases

A

Desired set pressure at the burner

30
Q

To prevent caking and to dry the coal entering the pulverizer

Heating coils are used

Electric pipe heaters are used

Warm air is used

Dryers are used

A

Warm air is used

31
Q

Blowers are used in a high pressure gas system to_____

Supply air for combustion

Remove gases of combustion

Regulate the flow of gas

Cool the combustion chamber

A

Supply air for combustion

32
Q

The gas pressure regulator in the low pressure gas system reduces the gas pressure to______psi

0

5

10

16

A

0

33
Q

The amount of gas drawn into the air stream in a low pressure gas system is controlled by the______

Manual reset valve

Check valve

Venturi effect

Flow control calve

A

Venturi effect

34
Q

The underfeed stoker can burn

Only anthracite coal

Only bituminous coal

Anthracite or bituminous coal

A

Anthracite or bituminous coal

35
Q

The thickness of the fuel bed on a chain grate stocker is regulated by a coal____

Conveyor

Scale

Hopper

Gate

A

Gate

ADVANCED ENGINEER TRAINING I (Third-Class Upgrade) (12 decks)

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