Chapter 3

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  1. All piping and ductwork must have provision for ____.
    A.  Insulation
    B.  Expansion
    C.  painting
    D.  Labelling
    B.  Expansion
    (this multiple choice question has been scrambled)
  2. To support the main steam drum ____ shaped hangers are attached to the structural steel.
    A.  U
    B.  L
    C.  W
    D.  V
    A.  U
    (this multiple choice question has been scrambled)
  3. Buckstays Provide the furnace walls with additional _______Support
    (A) Vertical
    (B) Linear
    (C) Horizontal
    (D) Lateral
    (D) Lateral
    (this multiple choice question has been scrambled)
  4. U-bolts permit ____ movement of the drum with temperature variations.
    (A) Horizontal
    (B) Vertical
    (C) Linear
    (D) Angled
    (C) Linear
    (this multiple choice question has been scrambled)
  5. The ____ is a major anchor point for other boiler components.
    A. Tubing
    B. Mud Drum
    C. Casing
    D. Steam Drum
    D. Steam Drum
    (this multiple choice question has been scrambled)
  6. What is meant by the foundation of a boiler?
    A. The ground support of the boiler?????
    B. The steel work of the boiler
    C. The person who designed the boiler
    D. The support beams on top of a boiler
    E. The setting of the boiler
    A. The ground support of the boiler?????
    (this multiple choice question has been scrambled)
  7. Every boiler must be supported by a good foundation
    1. To allow for expansion
    2. To avoid movement due to settling
    3. To prevent extra stress in connected pipework
    4. To allow accurate water indication of the boiler
    A. 1, 3, 4
    B. 1, 2
    C. 2, 4????
    D. 1, 2, 3, 4
    E. 2, 3, 4
    C. 2, 4????
    (this multiple choice question has been scrambled)
  8. Why do boilers have allowances for expansion?
    1. To prevent the brickwork from cracking
    2. To prevent undue stress on the pipework
    3. To prevent thermal shock to the steam drum
    4. Because the boiler is not always operating at the same temperature
    A. 1, 2, 4???
    B. 2, 3, 4
    C. 2, 4
    D. 2, 3
    E. 1, 2
    A. 1, 2, 4???
    (this multiple choice question has been scrambled)
  9. The boiler pressure parts are allowed to expand __________ from the main supports at the top.
    A. up wards
    B. downwards
    C. sideways
    D. static
    B. downwards
    (this multiple choice question has been scrambled)
  10. Upon completion of the structural steel installation, the “U” shaped hangers are attached to the structural steel for support of the main steam ______.
    A. economizer
    B. drum
    C. header
    D. superheater
    B. drum
    (this multiple choice question has been scrambled)
  11. The drum is supported by U-bolts, which permit linear movement of the drum with ___________ variations.
    A. size
    B. temperature
    C. pressure
    D. small
    B. temperature
    (this multiple choice question has been scrambled)
  12. The _____ is used as the major anchor point for other boiler components, and for this reason, accurate location is important.
    A. structure
    B. superheater
    C. header
    D. drum
    D. drum
    (this multiple choice question has been scrambled)
  13. The bottom-supported boiler has concrete drum _________, which support the bottom drum and bottom headers.
    A. feet
    B. foundations
    C. hangers
    D. holders
    B. foundations
    (this multiple choice question has been scrambled)
  14. The boiler tubes themselves are used to support the top _____ in a bottom-supported boiler.
    A. tubes
    B. drum
    C. header
    D. cover
    B. drum
    (this multiple choice question has been scrambled)
  15. All piping and ductwork must have provision for _______.
    A. shrinkage
    B. installation
    C. vibration
    D. expansion
    D. expansion
    (this multiple choice question has been scrambled)
  16. Boiler ______ is the term used to describe the airtight metal casing of a boiler wall.
    A. casing
    B. house
    C. wall
    D. metal
    A. casing
    (this multiple choice question has been scrambled)
  17. __________ is cement like. It is used to withstand very high temperatures in areas such as burner throats and boiler target walls.
    A. Cladding
    B. Casing
    C. Insulation
    D. Refractory
    D. Refractory
    (this multiple choice question has been scrambled)
  18. The use of membrane or water-cooled walls has reduced the use of __________ in modern watertube boilers.
    A. insulation
    B. castables
    C. refractory
    D. cladding
    B. castables
    (this multiple choice question has been scrambled)
  19. Cladding (also called lagging) is the metal covering, which protects the _____ surface of the boiler.
    A. wet
    B. inner
    C. bottom
    D. outer
    D. outer
    (this multiple choice question has been scrambled)
  20. Boiler tubes may be constructed in a seamless form, or they may be ____.
    (A) Expanded
    (B) Riveted
    (C) Welded
    (D) Glued
    (C) Welded
    (this multiple choice question has been scrambled)
  21. Boiler tubes may be fabricated in a _________ form, or they may be welded.
    A. rolled
    B. cast
    C. seamed
    D. seamless
    D. seamless
    (this multiple choice question has been scrambled)
  22. Tubes for boiler application are either hot-finished, or _____ -drawn depending on the size, tolerance, and finish desired.
    A. rough
    B. mild
    C. cold
    D. hot
    C. cold
    (this multiple choice question has been scrambled)
  23. _________ tubes have no welded joints.
    A. Seamless
    B. Superheater
    C. Boiler
    D. Cold
    A. Seamless
    (this multiple choice question has been scrambled)
  24. The function of the rolling mill is to ________ the tube and reduce the wall thickness to the approximate dimensions required.
    A. roll
    B. lengthen
    C. smooth
    D. protect
    B. lengthen
    (this multiple choice question has been scrambled)
  25. Directly after rolling and while the tube is still hot, a reeling machine shown in Fig. 14 smooths the outer surface. This is called __________.
    A. smoothing
    B. reeling
    C. burnishing
    D. stressing
    C. burnishing
    (this multiple choice question has been scrambled)
  26. Another method used to produce seamless tubes is known as ________.
    A. cold rolling
    B. extrusion
    C. polishing
    D. casting
    B. extrusion
    (this multiple choice question has been scrambled)
  27. To form a drum or shell of the required diameter, the plates must be rolled to the correct _________.
    A. width
    B. curvature
    C. thickness
    D. diameter
    B. curvature
    (this multiple choice question has been scrambled)
  28. The automatic submerged-arc welding process normally makes longitudinal and circumferential ______ in drums.
    A. welds
    B. connections
    C. seams
    D. cuvature
    C. seams
    (this multiple choice question has been scrambled)
  29. Drumheads are formed from flat plate by hot pressing with suitable forming dies, and then machining the circumferential welding grooves.
    a. True
    b. False
    a. True
  30. Nozzles and stubs for connecting the drum to tubes and piping are formed by _____ forging from a solid steel cylinder, or “billet”.
    A. cold
    B. hot
    C. mild
    D. roll
    B. hot
    (this multiple choice question has been scrambled)
  31. The _____ form the connection for the attachment of the boiler steam generating tubes to the drum and the saturated steam outlet tubes from the top or steam space of the drum.
    A. welding
    B. stubs
    C. manholes
    D. tubes
    B. stubs
    (this multiple choice question has been scrambled)
  32. Upon completion of all welding, every drum must be subjected to a preweld heat treatment.
    a. True
    b. False
    b. False
  33. It is not allowed to make any welds directly to the drum _____ stress relieving has been completed.
    A. during
    B. until
    C. before
    D. after
    D. after
    (this multiple choice question has been scrambled)
  34. Postweld heat treatment, often called stress relieving, consists of heating the welded parts uniformly, to a temperature sufficient to relieve most of the stresses created by the heat from the welding. The parts are then cooled at a constant rate.
    a. True
    b. False
    a. True
  35. In the field, the stress relieving of welded pipe joints may be accomplished by means of __________ induction coils, which are wrapped around the welded section of the pipe.
    A. electrical
    B. heat
    C. magnetic
    D. gas
    A. electrical
    (this multiple choice question has been scrambled)
  36. A final test which is carried out in the manufacturer’s shop is a hydraulic or hydrostatic test, (conducted according to the ASME Code Section I, PW-54), at a pressure of ____ times the design pressure.
    A. 5
    B. 2
    C. 1
    D. 1.5
    D. 1.5
    (this multiple choice question has been scrambled)
  37. A tube expander consists of three rollers mounted in a cage, which fits inside the tube end. A tapered mandrel or spindle fits between the rollers and when the mandrel is turned, the rollers are rotated and forced out against the tube wall pressing in against the tube hole.
    a. True
    b. False
    a. True
  38. Boiler tubes are sometimes welded to _____, which have already been welded to the headers or drum.
    A. stubs
    B. tubes
    C. welds
    D. manholes
    A. stubs
    (this multiple choice question has been scrambled)
  39. Nozzles and stubs for connecting the drum to tubes and piping are formed by hot forging from a solid steel cylinder, or ______.
    A. billet
    B. stub
    C. connector
    D. pipe
    A. billet
    (this multiple choice question has been scrambled)
  40. Handholes and manholes are provided in drums and ________ to give access to allow for cleaning, inspection, and repair during the life of the boiler.
    A. headers
    B. tubes
    C. superheaters
    D. furnaces
    A. headers
    (this multiple choice question has been scrambled)
  41. The ASME Code Section __ specifies that the size of an elliptical manhole shall not be less than 280 mm by 380 mm or 250 mm by 410 mm.
    A. III
    B. I
    C. VII
    D. IV
    B. I
    (this multiple choice question has been scrambled)
  42. Drum manhole openings may be elliptical or _____.
    A. square
    B. slotted
    C. dished
    D. circular
    D. circular
    (this multiple choice question has been scrambled)
  43. The ASME Code specifies that circular manholes must not be less than ____, inside diameter.
    (A) 380mm???
    (B) 250mm
    (C) 406mm
    (D) 525mm
    (E) 303mm
    (A) 380mm???
    (this multiple choice question has been scrambled)
  44. When a manhole opening is made in a drum or shell, the area becomes _______ due to the amount of metal removed.
    A. flatter
    B. rougher
    C. stronger
    D. weaker
    D. weaker
    (this multiple choice question has been scrambled)
  45. The covers fit on the ______ of the drum and are held in place by means of bolts and yoke pieces.
    A. ends
    B. middle
    C. inside
    D. outside
    C. inside
    (this multiple choice question has been scrambled)
  46. The gaskets used are the woven type for pressures up to _____ kPa and the metallic type for higher pressures.
    A. 5000
    B. 2500
    C. 1500
    D. 3450
    D. 3450
    (this multiple choice question has been scrambled)
  47. For pressures up to ______ kPa and temperatures up to 454°C, handhole covers with gaskets are used and are bolted into place.
    A. 10,000
    B. 5000
    C. 6210
    D. 8370
    D. 8370
    (this multiple choice question has been scrambled)
  48. Before the refractory and casing can be installed the ____ witnesses the hydrostatic test and carries out an inspection of the boiler.
    (A) Power Engineer
    (B) Boiler Inspector
    (C) Steam Chief
    (D) Unit Operator
    (B) Boiler Inspector
    (this multiple choice question has been scrambled)
  49. Only some of the firetubes in firetube boilers are:
    A. beaded
    B. expanded
    C. flared
    D. rolled
    E. seal welded
    E. seal welded
    (this multiple choice question has been scrambled)
  50. ________ boilers must be built or put together in the field (field erected).
    A. Sectional
    B. Larger
    C. Package
    D. Recovery
    B. Larger
    (this multiple choice question has been scrambled)
  51. Large quantities of ______ are used to complete the foundations, which must support the loads from the boiler and all of the auxiliary equipment.
    A. earth
    B. refractory
    C. steel
    D. cement
    D. cement
    (this multiple choice question has been scrambled)
  52. The _________ steel carries the weight of the steam drum and the major pressure components.
    A. main
    B. mild
    C. welded
    D. structural
    D. structural
    (this multiple choice question has been scrambled)
  53. The steam drum is usually the _______ major pressure component placed in the steel structure.
    A. last
    B. second last
    C. only
    D. first
    D. first
    (this multiple choice question has been scrambled)
  54. Coal pulverizers must be installed _____ to allow installation of coal piping to the boiler.
    A. first
    B. last
    C. early
    D. only
    C. early
    (this multiple choice question has been scrambled)

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Author:
PowerPrep
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317528
Filename:
Chapter 3
Updated:
2016-03-20 13:14:07
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Chapter 3
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