4TH CLASS POWER ENGINEERING UNIT A11 CHAPTER 1: INTRODUCTION
TO BOILERS QUESTIONS AND ACCURATE ANSWERS
Typically, high pressure boiler service tubes are:
Choose one:
a. Welded
b. rolled c. smooth
Beaded (d) ANSWER c
On the job site, this kind of boiler is put together piece by piece:
Choose one:
a. field-assembled b. field-erected c. packaged d. auxiliary - ANSWER b
A cylindrical part of a pressure vessel that can be fitted with heads or other
complementary parts:
Choose one:
A. descender B. ascender C. flue D. path - ANSWER d
This plate seals the end of a cylindrical shell or drum in a pressure vessel:
Choose one:
A manhole
ANSWER d: b. tubesheet c. lagging d. head
The protective covering for insulating material on pipes, ducts, or boilers is
known as:
Choose one:
Setting, refractory, insulation, and lagging Respond to a
Short tube stubs used to attach fittings and pipework are welded to shells,
drums, and headers.
Choose one:
Rods, nozzles, nipples, and mandrels are some examples. ANSWER b
There is no internal circulation in this kind of boiler:
Choose one:
Fluidized bed boilers, packaged boilers, once-through boilers, and scotch
boilers— ANSWER c
A pressure vessel's exterior cylindrical section is the
TO BOILERS QUESTIONS AND ACCURATE ANSWERS
Typically, high pressure boiler service tubes are:
Choose one:
a. Welded
b. rolled c. smooth
Beaded (d) ANSWER c
On the job site, this kind of boiler is put together piece by piece:
Choose one:
a. field-assembled b. field-erected c. packaged d. auxiliary - ANSWER b
A cylindrical part of a pressure vessel that can be fitted with heads or other
complementary parts:
Choose one:
A. descender B. ascender C. flue D. path - ANSWER d
This plate seals the end of a cylindrical shell or drum in a pressure vessel:
Choose one:
A manhole
ANSWER d: b. tubesheet c. lagging d. head
The protective covering for insulating material on pipes, ducts, or boilers is
known as:
Choose one:
Setting, refractory, insulation, and lagging Respond to a
Short tube stubs used to attach fittings and pipework are welded to shells,
drums, and headers.
Choose one:
Rods, nozzles, nipples, and mandrels are some examples. ANSWER b
There is no internal circulation in this kind of boiler:
Choose one:
Fluidized bed boilers, packaged boilers, once-through boilers, and scotch
boilers— ANSWER c
A pressure vessel's exterior cylindrical section is the
