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Process Technology Equipment, 2e (NAPTA)
Chapter 4 Piping, Gaskets, Tubing, Hoses, and Fittings
1) What are flat pieces of a material used to make a seal between two piping or equipment
connection points?
A) Hoses
B) Gaskets
C) Blinds
D) Expansion loop
2) Which of the following is a material that is used to make tubing?
A) Alloys
B) Synthetics
C) Plastics
D) All of the above
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3) If there is a chance that the temperature, pressure, or chemical limitations of a hose will be
reached or exceeded, what should be used to replace the hose?
A) Blinds
B) Tubing
C) Piping
D) Expansion loop
4) Which piping support holds pipes from underneath?
A) Pipe shoes
B) Pipe hangers
C) Pipe clamps
D) Expansion loop
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5) What is the most common piping material?
A) Plastic
B) Alloy steel
C) Stainless steel
D) Carbon steel
6) What construction material should be used for low-pressure applications and corrosive
services?
A) Plastic
B) Alloy steel
C) Stainless steel
D) Copper
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7) Which of the following is a drawback of stainless steel?
A) It is less expensive than carbon steel.
B) It is subject to stress corrosion.
C) It can easily rust.
D) It is more brittle than carbon steel at low temperatures.
8) Which category of stainless steel is a very hard, high-strength alloy?
A) Ferritic
B) Austenitic
C) Martensitic
D) Bronze
9) Which non-metal construction material is used in waste treatment ponds?
A) Clay
B) Elastomeric membranes
C) Plastics
D) Porcelain
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10) What happens to the ID when the wall of the pipe gets thicker?
A) It gets larger.
B) It gets smaller.
C) There is no change.
D) It changes the nominal pipe size.
11) What is the pressure-temperature rating for carbon steel pipe flanged fittings at 300 degrees
Fahrenheit and a class of 400?
A) 675
B) 875
C) 990
D) 2220
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12) What is the nominal pipe size of a schedule S40 pipe with an OD of 3.5 inches and an ID of
0.215?
A) 3 inches
B) 4 inches
C) 6 inches
D) 8 inches
13) What type of pipe connection should be used in a low-pressure water service?
A) Threaded
B) Screwed
C) Bonded
D) Welded
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14) What type of sealant compound is a paste that is applied to the thread of a pipe to seal the
thread connections?
A) Teflon tape
B) Pipe dope
C) Resin compound
D) Bonding
15) In what scenario would you use a glued joint?
A) Plastic lines and pipes
B) Copper water pipes
C) Connecting two pipes of the same diameter
16) In what scenario would you use a soldered joint?
A) Plastic lines and pipes
B) Copper water pipes
C) Connecting two pipes of the same diameter
D) Clay and concrete piping
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17) What type of tubing connection is used for copper or aluminum tubing?
A) Flared fitting
B) Flanged fitting
C) Quick connect
D) Compression fitting
18) What type of hose connection is also called a crow's foot?
A) Camlock
B) Boss fitting
C) Quick connect
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19) What type of fitting is used to close the end of a piping run?
A) Cap
B) Plug
C) Elbow
D) Wye fitting
20) What type of fitting allows the splitting or joining of flows?
A) Tee
B) Union
C) Cross
D) Nipple
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21) Which of the following is a disadvantage of hydrostatic testing?
A) It allows steam to get trapped.
B) A potential for rupture exists in high-pressure, large-volume systems.
C) Ambient temperature must be within a certain range.
22) What is a constant flow of steam through small diameter tubing that runs beside the pipe to
keep the pipe warm?
A) Steam traps
B) Insulation
C) Heat tracing
D) Steam tracing
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23) Which of the following is a material used to make insulation?
A) Calsil
B) Kaowool
C) Fiberglass
D) All of the above
24) Which of the following can be caused by piping corrosion?
A) Piping failure
B) Leaking piping
C) Stress cracking
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25) Which of the following improper operations does NOT cause a hazard of exposure to
chemicals?
A) Piping corrosion
B) Using the wrong hose type
C) Incorrect piping material
