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ADVANCED ENGINEER TRAINING I (Third-Class Upgrade) > Test 1 Multiple Choice > Flashcards

Test 1 Multiple Choice Flashcards

1
Q

A lead sulfide cell which is used for flame detection is sensitive to

Infrared light
Light
Heat
Temperature increases

A

Infrared light

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2
Q

Carbon dioxide in the flues gas is a sign of ________combustion

Perfect
Complete
Incomplete
Half-complete

A

Complete

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3
Q

The ON/OFF pressure control must be connected to the ________

Main steam line
Main feedwater line
Highest part of the steam side of the boiler
Water side of the boiler below the NOWL

A

Highest part of the steam side of the boiler

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4
Q

A slowly rising water level in the gauge glass indicates that_____

The top line is closed or clogged
The bottom line is closed or clogged
Both lines are closed or clogged
A good fireman is on duty

A

The top line is closed or clogged

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5
Q

The purge cycle of a combination gas/fuel oil boiler is___when burning fuel oil as when burning gas

The same
Shorter
Twice as long
Three times as long

A

The same

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6
Q

The purpose of the boiler modulating pressure control is to

Regulate the water flow
Prevent carryover
Start and stop the burner on steam pressure demand
Regulate the high and low firing rate of the burner

A

Regulate the high and low firing rate of the burner

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7
Q

Bituminous coal has a_____content

High volatile
High hydrogen
High fixed carbon
High ash

A

High volatile

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8
Q

Carbon monoxide in the flue gas is a sign of_____combustion

Perfect
Complete
Incomplete
Half incomplete

A

Incomplete

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9
Q

The valves located between the boiler and the water column are_______valves and must be locked and sealed open

Check
Os&y, or lever
Gate
Globe

A

Os&y, or lever

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10
Q

Pressure gauges are calibrated with an(a)

Pressure gauge pump
Orsat analyzet
Lightweight tester
Deadweight tester

A

Deadweight tester

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11
Q

Complete combustion is defined as burning all the fuel using_____

The theoretical amount of air
A minimal amount of excess air
No excess air
CO2 and CO

A

A minimal amount of excess air

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12
Q

________dioxide is a major cause of air pollution and is caused by burning fuel oil

Nitrous
Vanadium
Hydrogen
Sulfur

A

Sulfur

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13
Q

A vaporstat control is sensitive to____

Pressure
Temperature
Electricity
Infrared rays

A

Pressure

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14
Q

Scale deposit in an HRT boiler can cause

A high rate of heat transfer
Overheating of the boiler metal
Carryover
Purging

A

Overheating of the boiler metal

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15
Q

An economizer heats

Steam
Air for combustion
Fuel oil
Feedwater

A

Feedwater

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16
Q

The scanner must be installed on the front of the boiler to sight

Both the pilot and the main flame
The pilot only
The main flame only
The boiler eater level

A

Both the pilot and the main flame

17
Q

Viscosity is the internal resistance of a fluid to flow. No. 6 fuel oil has_____viscosity

No
A high
A medium
A low

A

A high

18
Q

The orsat analyzer is used to determine the____

Requiere chimney temperature
Combustion efficiency
Steam quality in the boiler
Heating value of the fuel

A

Combustion efficiency

19
Q

In a closed feedwater heater the steam and water

Come into intimate contact
Only mix in the discharge side
Do not mix

A

Do not mix

20
Q

Boiler feedwater is chemically treated to

Increase circulation
Increases oxygen concentration
Prevent formation of scale

A

Prevent formation of scale

21
Q

The induce draft fan is located between the _______and ______

Feedwater pump heater
First pass heater
Boiler economizer
Boiler chimney

A

Boiler chimney

22
Q

Soot on the outside of the boiler tubes is removed bu a

Steam turbine
Water turbine
Soot blower
Wire brush and vacuum cleaner

A

Soot blower

23
Q

The BTU content of natural gas is______Btu per_____

100,000/ therm
100,000/cubit foot
152,000/ therm
152,000/cubit foot

A

100,000/therm

24
Q

The underfeed stoker in steam plants uses

Natural draft
Ash to keep the grates cool
An ignition arch
Forced draft

A

Forced draft

25
Q

The boiler superheater rises the temperature of the

Feedwater
Gases of combustion
Air for combustion
Steam leaving the boiler

A

Steam leaving the boiler

26
Q

An evaporation test should be perform______to check the low water fuel cutoff control

Daily
Weekly
Monthly
Yearly

A

Monthly

27
Q

______and______are used to soften feedwater

Calcium chloride/soda ash
Lime/soda ash
Lime/hydrochloride acid

A

Lime/soda ash

28
Q

Water polluted with foreign
matter causes an increase in

Makeup
Blowdown
Fuel consumption
Surface tension

A

Surface tension

29
Q

A ringelmann test is used to

Analyze feedwater

Measure CO2 in flue gas

Measure CO in flue gas

Determine smoke density

A

Determine smoke density

30
Q

Boiler horses power is the evaporation of______lb of water/hr from and at a feedwater temperature of 212 F

34.5

180

343

970.3

A

34.5

31
Q

According to the ASME code when warming up a boiler during cold plant startup, the boiler vent should remain open until the steam pressure reaches approximately ______psi

3

8

13

25

A

25 psi

32
Q

A pop-type safety valve is a____type

Hand and lever

Pin and disc

Deadweight

Spring-loaded

A

Spring-loaded

33
Q

An open feedwater heater is located_____.

Above the feedwater pump on the discharge side

Above the feedwater pumpon the suction side

In the boiler room

Between the feedwater pump and the boiler

A

Above the feedwater pump on the suction side

34
Q

When economizers are used to heat boiler feedwater every 10% rise in feedwater temperature is accompanied by a______% savings in fuel

.24%

1%

5%

10%

A

1%

35
Q

A proximate analysis of coal is used to determine the______

Volume of volatile matter fixed carbon, moisture and ash

Volume of carbon, hydrogen, oxygen and sulfur

Weight of moisture, oxygen sulfur, and ash

Weight of moisture, oxygen, sulfure, and ash

A

Weight of moisture, fixed carbon, volatile matter, and ash

36
Q

According to the ASME code, a boiler that has more than_____sq ft of beating surface must have two or more safety valves.

100

300

500

700

A

500

37
Q

The purpose of the scanner is to prove_______.

Only the pilot

Only the main flame

Both the pilot and the main flame

The proper boiler water level

A

Both the pilot and the main flame

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

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