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Chapter II: Boiler Systems

Total questions: 25

Worksheet time: 6hrs 15mins

Name
Class
Date
1.

If a boiler is generating 20,000 lb/hr of steam, it must be supplied with ___ lb/hr of feedwater

a)

10,000

b)

20,000

c)

30,000

d)

40,000

2.

From the deaerator, oxygen and other noncondensable gases are separated from the feedwater and directed toward the atmosphere ___

a)

By Using the Closed Feedwater Heater

b)

Through the Economizer

c)

By Using Steam Traps

d)

Through the Vent

3.

A(n) ___ system is a system of measuring instruments and controllers that work together to control a process

a)

Instrumentation

b)

Feedwater

c)

Control

d)

Combustion

4.

One pound of water is needed to produce ___ of steam

a)

1 lb

b)

3 lb

c)

144 BTU

d)

970.3 BTU

5.

In a low pressure gas system, the ___ valve is an electric valve that cannot be opened until the gas pilot is lit

a)

Check

b)

Pressure-Regulating

c)

Manual Reset

d)

Pressure Reducing

6.

___ are used for loads that require dry steam, such as turbines

a)

Superheaters

b)

Forced Draft Fans

c)

Reclaimed Steam Lines

d)

Automatic Non-Return Valves

7.

In a feedwater system, the ___ valve is located closest to the shell of the boiler on the feedwater line so that the check valve can be repaired without draining (dumping) the boiler

a)

Blowdown

b)

Manual Reset

c)

Stop

d)

Automatic Non-Return

8.

A steaming boiler can have the water from the gauge glass go from half full to empty in a matter of ___ if water is not added to the boiler

a)

Minutes

b)

Hours

c)

Days

d)

Weeks

9.

Superheated Steam Has More ___ Than Saturated Steam at the Same Pressure

a)

Heat Energy

b)

Volume

c)

Pressure

d)

Moisture

10.

The Deaerator Tank Is Located ___

a)

Above The Feedwater Pumps

b)

Below the Feedwater Pumps

c)

After the Closed Feedwater Heater

d)

Before the Centrifugal Pump

11.

A gas pilot line on a high-pressure gas system supplies gas through a ___ valve to the pilot gas-pressure regulator

a)

Check

b)

Shutoff

c)

Butterfly

d)

Throttling

12.

The purpose of any fuel oil system is to supply fuel oil to the burner at the proper ___

a)

Volume and Pressure

b)

Temperature and Volume

c)

Temperature and Pressure

d)

Viscosity and Speed

13.

No. _ fuel oil needs to be heated before it is pumped so it can flow

a)

2

b)

3

c)

4

d)

6

14.

Pulverizing coal allows ___

a)

The Coal to be Stored Easily

b)

For Better Burning on the Grates

c)

For Closer Contact Between the Coal and Oxygen for Complete Combustion

d)

For Easy Hand-Firing

15.

Draft is ___ caused by a difference in pressure between two points

a)

The Balance of Pressure

b)

The Flow of the Air or Gases of Combustion

c)

A Type of Back Pressure

d)

The Stack Height

16.

Natural draft is a result of temperature differences between ___

a)

Fuel Oil and Air

b)

Burning Coal and Sulfur

c)

Air and Gases of Combustion

d)

Fuel Oil and Gases of Combustion

17.

In a low-pressure gas system, the air mixes with the gas in the ___

a)

Injector

b)

Gas Pilot Line

c)

Burner Register

d)

Pulverizer

18.

A measuring instrument can use a ___ to send a signal to a controller

a)

Control Valve

b)

Final Element

c)

Transmitter

d)

Primary Element

19.

Pulverized coal is ground into a fine powder and blown into the combustion chamber where it is burned in ___

a)

Scales

b)

Grates

c)

Suspension

d)

Large Particles

20.

A control system uses a ___ to execute control strategy

a)

Steam Pressure Gauge

b)

Pressure Control Station

c)

Feedwater Control Valve

d)

Control Loop

21.

Water weighs approximately ___ lb/gal

a)

2.5

b)

6.4

c)

8.3

d)

10.2

22.

Induced draft is produced by pulling air through the boiler furnace with a fan located in the ___

a)

Breeching

b)

Inlet Damper

c)

Combustion Chamber

d)

Economizer

23.

A control loop typically uses ___ as the control element

a)

Pressure Transmitter

b)

Modulating Water Valve

c)

Temperature Sensor

d)

Steam Pressure Controller

24.

Codes may require that a(n) ___ be positioned before the firing-rate valve that controls the volume of gas to the burner

a)

Equalizer

b)

Manual Shutoff Valve

c)

Flue Gas Analyzer

d)

Pressure-Reducing Governor

25.

In a fuel oil system, the purpose of duplex strainers is to ___

a)

Isolate The Fuel Oil System in the Event of a Fire

b)

Remove Water From The Fuel Oil

c)

Prevent Return Flow To The Tank

d)

Permit One Strainer To Be Cleaned While the Other Is In Service