ABSA 4A UNIT 7 FINAL EXAM TEST .

ABSA 4A UNIT 7 FINAL EXAM TEST 2026\2027.




One disadvantage of using threaded connections to join pipes and fittings is that it:

Select one:
a. Is more costly
b. Weakens the pipe
c. Difficult to insulate
d. Requires the services of a pipe fitter
b. Weakens the pipe
With respect to NPS 14 pipe and larger, the Nominal Pipe Size number is referring to the:

Select one:
a. Outside diameter
b. Inside diameter
c. Thickness
d. Mass per metre of length
a. Outside diameter
Two types of expansion joints are the _________ designs.

Select one:
a. Bolted and threaded
b. Flex bend and raised face
c. Ring joint and slip
d. Bellows and slip
d. Bellows and slip
A good rule of thumb is to install pipe hangers at ___________ intervals along a pipe.

Select one:
a. 1 m
b. 1.5 m
c. 3 m
d. 5 m
c. 3 m

, ABSA 4A UNIT 7 FINAL EXAM TEST 2026\2027.


In most sizes of pipe, Schedule 40 corresponds to _____ wall thickness.

Select one:
a. Welded only
b. Threaded only
c. Extra strong (XS)
d. Standard
d. Standard
Which two systems are used to designate nominal pipe size?

a. USCS uses NPS, and SI assigns a DN
b. Nominal inside diameter and actual outside diameter
c. Schedule numbers and nominal size
d. SI uses NPS and USCS assigns a DN
a. USCS uses NPS, and SI assigns a DN
With respect to NPS 14 pipe and larger, as the pipe schedule increases, the outside diameter:

Select one:
a. Dependent on the material selected
b. Remains the same
c. Decreases
d. Will be equal to the schedule number
b. Remains the same
A common material used for water and instrument air piping in power plants is

Select one:
a. galvanized steel
b. cast iron
c. bronze
d. copper
d. copper
The three markings mandatory on valves to be used in pressure piping include manufacturer's
name, material designation and _______________.

Select one: