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Book 1 PanGlobal Assessment Test Unit One: Boiler Details (5th Class Power Engr) > Unit 1 Review Self-Assessment Test Boiler Details > Flashcards

Unit 1 Review Self-Assessment Test Boiler Details Flashcards

1
Q
  1. Cast-iron sectional boilers have flue gas passages which:
    A. Are often termed “breeching”
    B. Increase heat transfer
    C. Receive radiant heat only
    D. Act as boiler water legs
    E. Are smooth to increase combustion gas flow
A

B. Increase heat transfer

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2
Q 
2. The Locomotive boiler has a furnace that is:
A.	External
B.	Almost completely surrounded by water
C.	Partially surrounded by brickwork
D.	Called a firetube
E.	Not part of the pressure shell
A

B. Almost completely surrounded by water

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3
Q
  1. The lower tubes of the serpentine watertube boiler are exposed to the _____ heat from the fire.

A. Radiant

B. Convection

C. Conduction

D. Radiant and conduction

E. Convection and conduction

A

A. Radiant

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4
Q
  1. The advantages of “bent tube” boilers include:
  2. Bent tubes allowed for better heat transfer
  3. Much refractory was eliminated
  4. Limitations on design and configuration
  5. The tubes could form flue gas baffles

A. 1, 2

B. 2, 3, 4

C. 3, 4

D. 1, 2, 3, 4

E. 1, 2, 4

A

E. 1, 2, 4

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5
Q
  1. The “Steel plate heating boiler” is classified as a _____ pass boiler.

A. One

B. Two

C. Three

D. Four

E. Multi

A

A. One

Steel plate heating boiler is classified as a ONE pass boiler.

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6
Q
  1. The electrode type electric boiler consists of two cylindrical chambers:

A. The inner one forming the regulating compartment and the other the generating compartment

B. The inner one forming the generating compartment and the other the regulating compartment

C. The inner one forming the regulating compartment and the other the steam compartment

D. The inner one forming the steam compartment and the other the generating compartment

E. The inner one forming the fire compartment and the other the generating compartment

A

B. The inner one forming the generating compartment and the other the regulating compartment

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7
Q
  1. “Prior to the power being turned on” in an electrode type electric boiler the water levels in the two chambers would be:

A. Higher in the inner chamber

B. Higher in the outer chamber

C. The same in both chambers

D. Lower in the fire tubes

E. Lower in the water tubes

A

C. The same in both chambers

Note: “PRIOR TO THE POWER BEING TURNED ON”

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8
Q
  1. Cast-iron boiler sections maximize heat transfer by:

A. Using four push nipples per section

B. Vertical firing

C. Exposing as large a surface as possible to the hot gases

D. Utilizing an external furnace

E. Using a large economizer

A

C. Exposing as large a surface as possible to the hot gases

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9
Q
  1. Since pure water will not conduct electricity a predetermined amount of electrolyte (_____) is dissolved in the water.

A. NaOH

B. H2SO4

C. NaSO3

D. HCl

E. NaCl

A

E. NaCl

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10
Q
  1. The top of the furnace in a Locomotive boiler was termed the:

A. Uptake

B. Firebox

C. Barrel

D. Crown sheet

E. Smoke box

A

A. Uptake

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11
Q
  1. In order to reduce extensive heat losses from the externally fires furnace walls:

A. The furnace was made longer

B. The furnace was enlarged

C. More firetubes were added

D. The furnace grate was placed inside the enlarged return flue

E. The furnace walls were lined with refractory

A

D. The furnace grate was placed inside the ‘‘enlarged return flue’’

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12
Q
  1. At atmospheric conditions with the heat available 1 litre of water will produce _____ litres of steam.

A. 500

B. 1000

C. 1500

D. 1700

E. 2000

A

D. 1700

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13
Q
  1. The HRT boiler is classified as a _____ pass boiler.

A. One

B. Two

C. Three

D. Four

E. Multi

A

B. Two

HRT BOILER is a Two types Boiler

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14
Q
  1. The stampings on a packaged firetube boiler may indicate a Maximum Allowable Working Pressure (MAWP) of 1000 kPa (145 psi), but the applicable code or Certificate of Inspection may show a MAWP of:

A. 100 kPa (14.5 psi)

B. 103 kPa (14.7 psi)

C. 160 kPa (23.2 psi)

D. 1000 kPa (145 psi)

E. 1100 kPa (159.5 psi)

A

B. 103 kPa (14.7 psi)

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15
Q
  1. The types of construction used with packaged boilers are:
  2. “A”
  3. “B”
  4. “C”
  5. “D”
  6. “O”

A. 1, 2, 3

B. 2, 3, 4

C. 1, 4, 5

D. 1, 2, 4

E. 2, 3, 5

A

C. 1, 4, 5

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16
Q
  1. Which of the following are advantages of packaged watertube boilers?
  2. Ease of installation
  3. One supplier supplies all components
  4. Built with all of the necessary fittings
  5. Warranties and similar items are easy to deal with

A. 1, 2

B. 2, 3, 4

C. 3, 4

D. 1, 2, 3, 4

E. 1, 2, 4

A

D. 1, 2, 3, 4

17
Q
  1. The forerunner of the modern packaged firetube boiler was the _____ boiler.

A. HRT

B. Scotch Marine

C. Locomotive

D. Firebox

E. Water box

A

B. Scotch Marine

18
Q
  1. The copper tubular boiler finds application in:
  2. Residential hot water heating systems
  3. Commercial hot water heating systems
  4. Industrial hot water heating systems
  5. Domestic hot water supply
  6. High pressure steam production]

A. 1, 2, 3

B. 2, 3, 4

C. 3, 4, 5

D. 1, 2, 4

E. 1, 2, 3, 5

A

D. 1, 2, 4

19
Q
  1. Steel plate heating boilers have thin steel installed in the:

A. Water tubes to give the water a swirling motion

B. Firetubes to give the gases a swirling motion

C. Firetubes to give the water a swirling motion

D. Water tubes to give the gases a swirling motion

E. Firetubes to give the air a swirling motion

A

B. “Firetubes” to give the gases a swirling motion

20
Q
  1. The main part of a heating firetube boiler through which the straight firetubes pass is called the:

A. Windbox

B. Furnace

C. Shell

D. Steam drum

E. Mud drum

21
Q
  1. The crown sheet of a Locomotive boiler was held in place by:

A. Longitudinal stays

B. Stay bolts

C. Grates

D. Fusible plugs

E. Radial stay

A

E. Radial stay

22
Q
  1. An advantage of a cast-iron sectional boiler is:

A. Their large capacity

B. Light weight requiring a minimal foundation

C. Its ability to withstand high pressure

D. The choice of assembly location

E. Small fixed size

A

D. The choice of assembly location

23
Q
  1. The HRT boiler is “inefficient” to operate due to:

A. The labour required to construct the brickwork

B. The gas passes were to long

C. The gas passes were too few

D. Heat loss through the brick setting was too high

E. The coal fired grates

A

D. Heat loss through the “brick setting was too high”

24
Q
  1. In a vertical firetube boiler, the steam space is located:

A. In a separate chamber

B. In a compartment on the side

C. At the lower part of the shell

D. At the top of the shell

E. In the firetubes

A

D. At the top of the shell

25
Q
  1. “Vertical firetube boilers” have an advantage when _____ is limited.

A. Height

B. Weight

  1. Vertical firetube boilers have an advantage when _____ is limited.

A. Height

B. Weight

C. Floor space

D. Pressure

E. Temperature

D. Pressure

E. Temperature

A

C. Floor space
One advantage of FIRETUBE

E. Temperature

26
Q
  1. Today the dry-back version of the “Scotch Marine” boiler is extremely popular with many manufacturers due to:

A. Its flexibility

B. The watertube design

C. The simplicity of construction

D. The firetube design

E. The high pressure operation

A

C. The simplicity of construction

27
Q
  1. The tubes of a serpentine watertube boiler are connected to the upper and lower headers by:

A. Welding

B. Silver solder

C. Four bolt flanges

D. Crosby clips

E. Threaded connections

A

E. Threaded connections

28
Q
  1. A machined and slightly tapered piece of pipe found in cast-iron sectional heating boilers is referred to as a:

A. Tie rod

B. Tapered bushing

C. Push nipple

D. Pipe nipple

E. Tie bolt

A

C. Push nipple

29
Q
  1. The forerunner of the modern packaged firetube boiler was the _____ boiler.

A. HRT

B. Scotch Marine

C. Locomotive

D. Firebox

E. Water box

A

B. Scotch Marine

30
Q
  1. The vertical firetube boiler has a cylindrical shell with tubes connected between the:

A. Steam drum and the mud drum

B. Front and rear tube sheets

C. Crown sheet and the shell

D. Crown sheet and the barrel

E. Upper and lower tube sheets

A

E. Upper and lower tube sheets

31
Q
  1. One of the characteristics of a firetube boiler is:

A. Their large water capacity makes them slow in coming up to operating pressure

B. Their large water capacity makes them fast in coming up to operating pressure

C. Their small water capacity makes them fast in coming up to operating pressure

D. Their small water capacity makes them slow in coming up to operating pressure

E. The small amount of heat stored in the water makes it possible to meet load changes quickly

A

A. Their large water capacity “makes them slow” in coming up to operating pressure

32
Q
  1. The longitudinal drum boiler is a _____ combustion gas pass boiler.

A. One

B. Two

C. Three

D. Four

E. Five

33
Q
  1. The Steel plate heating boiler is classified as a _____ pass boiler.

A. One

B. Two

C. Three

D. Four

E. Multi

34
Q

Answer Unit 1 Review
Boiler Details

  1. B
  2. B
  3. A
  4. E
  5. A
  6. B
  7. C
  8. C
  9. E
  10. D
  11. D
  12. D
  13. B
  14. B
  15. C
  16. D
  17. B
  18. D
  19. B
  20. C
  21. E
  22. D
  23. D
  24. D
  25. C
  26. C
  27. E
  28. C
  29. B
  30. E
  31. A
  32. C
  33. A

Book 1 PanGlobal Assessment Test Unit One: Boiler Details (5th Class Power Engr) (24 decks)

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