3 B1 Chapter 3 - Boiler Construction Exam Questions With Complete Solutions

3 B1 Chapter 3 - Boiler Construction Exam Questions With
Complete Solutions

________ boilers must be built or put together in the field (field
erected).

a. Recovery
b. Sectional
c. Larger
d. Package Correct Answers c

_________ tubes have no welded joints
a. Boiler
b. Superheater
c. Seamless
d. Cold Correct Answers c

__________ is cement like. It is used to withstand very high
temperatures in areas such as burner throats and boiler target
walls
a. Refractory
b. Insulation
c. Cladding
d. Casing Correct Answers a

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. 1
b. 2
c. 1.5
d. 5 Correct Answers c

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 Correct Answers a

All piping and ductwork must have provision for _______
a. expansion
b. installation
c. vibration
d. shrinkage Correct Answers a

Another method used to produce seamless tubes is known as
________.
a. cold rolling
b. extrusion
c. polishing
d. casting Correct Answers b

Boiler ______ is the term used to describe the airtight metal
casing of a boiler wall.
a. wall
b. metal
c. casing