Book1 chapter15 Flashcards
(28 cards)
An advantage of plastic piping is:
Select one:
A. Resistance to high temperatures
B. High cost
C. Ease of assembly
D. Ease of corrosion
E. Ease of corrosion
C. Ease of assembly
One of the general designs of gaskets is the _____ gasket.
Select one:
A. Ring joint
B. Hard
C. Soft
D. Round
E. Fat
A. Ring joint
Welded steel pipe made from flat steel plates that are rolled and welded is used for _____ service.
Select one:
A. Higher pressure
B. Oil
C. Lower pressure
D. Water
E. Steam
C. Lower pressure
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. Flat
B. Tongue and groove
C. Raised
D. O-Ring
E. Male and female
C. Raised
Gaskets used for higher pressures and temperatures are made from:
Select one:
A. Teflon (PTFE)
B. Rubber
C. Neoprene
D. Cork
E. Metal or metal reinforced flexible graphite
E. Metal or metal reinforced flexible graphite
Cast steel is commonly used for:
Select one:
A. Pipe fittings and valves
B. Gas pipes
C. Oil pipes
D. Water pipes
E. Steam 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:
Select one:
A. Low and moderate temperatures
B. Low and moderate pressures
C. Moderate and high temperatures
D. Moderate and high pressures
E. Low and high pressures
B. Low and moderate pressures
For 60.3 mm (2 inch) nominal pipe size the inside diameter will be:
Select one:
A. 40.9 mm
B. 77.9 mm
C. 52.5 mm
D. 35.1 mm
E. 62.7 mm
C. 52.5 mm
Cast iron has a high resistance to _____ and abrasion and is used for sewage and storm drainage lines.
Select one:
A. Thermal expansion
B. Corrosion
C. Temperature
D. Pressure
E. Vibration
B. Corrosion
Threaded _____ pipe fittings cannot be used for gas service piping systems.
Select one:
A. Copper
B. Steel
C. Aluminum
D. Malleable iron
E. Cast iron
E. Cast iron
One of the general types of pipe flanges used is the _____ flange.
Select one:
A. Six bolt
B. Eight bolt
C. Raised face
D. Lapped or slip-on
E. Flat face
D. Lapped or slip-on
Joining or connecting lengths of piping by the use of threaded pipe and screwed connections has the advantage of:
Select one:
A. The piping can be easily assembled or disassembled
B. There is no chance of leakage
C. A qualified welder must be used
D. The strength of the pipe is not reduced
E. Gaskets are not required
A. The piping can be easily assembled or disassembled
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. 2 in
B. 3/4 in
C. 1/2 in
D. 3 in
E. 1 in
A. 2 in
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. Bender
B. Cutter
C. Cleaner
D. Reamer
E. Threader
D. Reamer
The threads are cut by using a pipe die or die head, which is held in a frame called a:
Select one:
A. Threader
B. Collet
C. Reamer
D. Stock
E. Ratchet
D. Stock
For 21.3 mm (1/2 inch) nominal pipe size the inside diameter will be:
Select one:
A. 15.8 mm
B. 26.6 mm
C. 12.5 mm
D. 20.9 mm
E. 9.2 mm
A. 15.8 mm
A disadvantage of steel piping is its:
Select one:
A. Low thermal expansion rate
B. High thermal expansion rate
C. Low resistance to the corrosive effects of water
D. Low strength to mass ratio
E. High resistance to the corrosive effects of water
C. Low resistance to the corrosive effects of water
The use of welded joints for piping has the advantage over the use of screwed or flanged connections in that:
Select one:
A. The possibility of leakage is greatly increased
B. The need for maintenance is higher
C. The weight of the piping system is more
D. The cost of material is higher
E. The piping is easier to insulate
E. The piping is easier to insulate
Seamless steel pipe is made from a solid billet of steel which is pierced and rolled is used for _____ service.
Select one:
A. Water
B. Lower pressure
C. Oil
D. Higher pressure
E. Steam
D. Higher pressure
Black steel piping cannot be used for _____ lines.
Select one:
A. Gas
B. Lubricating oil
C. Instrument air
D. Fuel oil
E. Potable (drinking water) water
E. Potable (drinking water) water
Copper and copper alloys offer great resistance to:
Select one:
A. Corrosion
B. Breakage
C. Thermal expansion
D. Creep
E. High pressure
A. Corrosion
Joining or connecting lengths of piping by the use of threaded pipe and screwed connections has the disadvantage of:
Select one:
A.
A qualified welder must be used
B.
The strength of the pipe is reduced
C.
There is no chance of leakage
D.
The piping can not be easily assembled or disassembled
E.
Gaskets are not required
B.
The strength of the pipe is reduced
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 fitting
B.
Inside of the pipe
C.
Male pipe threads
D.
Female threads
E.
Both male and female threads
C.
Male pipe threads
Threaded cast iron pipe fittings cannot be used for _____ service piping systems.
Select one:
A.
Oil
B.
Chemicals
C.
Steam
D.
Water
E.
Gas
E.
Gas
