Book 1: Chapter 15 Piping Materials & Connections Flashcards
Copper and copper alloys offer great resistance to:
Select one:
A. Thermal expansion
B. Breakage
C. Corrosion
D. High pressure
E. Creep
C. Corrosion
A disadvantage of steel piping is its:
Select one:
A. Low thermal expansion rate
B. High thermal expansion rate
C. Low strength to mass ratio
D. Low resistance to the corrosive effects of water
E. High resistance to the corrosive effects of water
D. Low resistance to the corrosive effects of water
One of the general types of pipe flanges used is the _____ flange.
Select one:
A. Lapped or slip-on
B. Raised face
C. Six bolt
D. Eight bolt
E. Flat face
A. Lapped or slip-on
For 152.40 mm (6 inch) nominal pipe size the inside diameter will be:
Select one:
A. 90.1 mm
B. 202.7 mm
C. 128.2 mm
D. 102.3 mm
E. 154.1 mm
E. 154.1 mm
One of the general designs of gaskets is the _____ gasket.
Select one:
A. Fat
B. Soft
C. Hard
D. Ring joint
E. Round
D. Ring joint
The threads are cut by using a pipe die or die head, which is held in a frame called a:
Select one:
A. Collet
B. Ratchet
C. Reamer
D. Threader
E. Stock
E. Stock
The flange of the _____ face design has been found to be the most suitable for high pressure and is the easiest to disassemble.
Select one:
A. Raised
B. O-Ring
C. Male and female
D. Tongue and groove
E. Flat
A. Raised
Threaded _____ pipe fittings cannot be used for gas service piping systems.
Select one:
A. Malleable iron
B. Aluminum
C. Copper
D. Cast iron
E. Steel
D. Cast iron
Threaded cast iron pipe fittings cannot be used for _____ service piping systems.
Select one:
A. Oil
B. Steam
C. Gas
D. Water
E. Chemicals
C. Gas
Gaskets used for higher pressures and temperatures are made from:
Select one:
A. Cork
B. Teflon (PTFE)
C. Metal or metal reinforced flexible graphite
D. Neoprene
E. Rubber
C. Metal or metal reinforced flexible graphite
For 60.3 mm (2 inch) nominal pipe size the inside diameter will be:
Select one:
A. 77.9 mm
B. 62.7 mm
C. 40.9 mm
D. 35.1 mm
E. 52.5 mm
E. 52.5 mm
Black steel piping cannot be used for _____ lines.
Select one:
A. Potable (drinking water) water
B. Lubricating oil
C. Instrument air
D. Fuel oil
E. Gas
A. Potable (drinking water) water
The diameter of commercial pipe is measured by its :
Select one:
A. Wall thickness
B. Natural pipe size
C. Inside diameter
D. Nominal pipe size
E. Outside diameter
D. Nominal pipe size
Joining or connecting lengths of piping by the use of threaded pipe and screwed connections has the advantage of:
Select one:
A. A qualified welder must be used
B. The piping can be easily assembled or disassembled
C. There is no chance of leakage
D. Gaskets are not required
E. The strength of the pipe is not reduced
B. The piping can be easily assembled or disassembled
The grooved pipe system uses a joining connection made with a/an _____ that also serves as a union between the fitting and the piping.
Select one:
A. Quick couple
B. Elbow
C. Coupling collar
D. Flange fitting
E. Adaptor
C. Coupling collar
Seamless steel pipe is made from a solid billet of steel which is pierced and rolled is used for _____ service.
Select one:
A. Oil
B. Higher pressure
C. Steam
D. Water
E. Lower pressure
B. Higher pressure
The use of welded joints for piping has the advantage over the use of screwed or flanged connections in that:
Select one:
A. The need for maintenance is higher
B. The possibility of leakage is greatly increased
C. The piping is easier to insulate
D. The cost of material is higher
E. The weight of the piping system is more
C. The piping is easier to insulate
When pipe is cut with a wheel and roller cutter, a burr is left on the inside of the pipe that is removed with a pipe:
Select one:
A. Threader
B. Bender
C. Cutter
D. Reamer
E. Cleaner
D. Reamer
Cast steel is commonly used for:
Select one:
A. Pipe fittings and valves
B. Water pipes
C. Gas pipes
D. Steam pipes
E. Oil pipes
A. Pipe fittings and valves
Joining or connecting lengths of piping by the use of threaded pipe and screwed connections is generally used for pipe sizes _____ and smaller for low and moderate pressures.
Select one:
A. 1 in
B. 3 in
C. 3/4 in
D. 2 in
E. 1/2 in
D. 2 in
Cast iron has a high resistance to _____ and abrasion and is used for sewage and storm drainage lines.
Select one:
A. Vibration
B. Pressure
C. Thermal expansion
D. Corrosion
E. Temperature
D. Corrosion
Joining or connecting lengths of piping by the use of threaded pipe and screwed connections is generally used for:
Select one:
A. Moderate and high temperatures
B. Low and moderate pressures
C. Low and high pressures
D. Moderate and high pressures
E. Low and moderate temperatures
B. Low and moderate pressures
Before assembly the threads must be thoroughly cleaned and a small amount of thick lubricant, sometimes called pipe dope, is applied to the:
Select one:
A. Inside of the pipe
B. Female threads
C. Inside of the fitting
D. Male pipe threads
E. Both male and female threads
D. Male pipe threads
For 21.3 mm (1/2 inch) nominal pipe size the inside diameter will be:
Select one:
A. 26.6 mm
B. 20.9 mm
C. 9.2 mm
D. 12.5 mm
E. 15.8 mm
E. 15.8 mm
