block B review Flashcards
What color of solvent cement would be used to join PVC pipe?
Select one:
a.
Clear
b.
White
c.
Yellow
d.
Grey
The correct answer is: Grey
What connection method would be used to join underground high-density polyethylene pipe (HDPE)? .
Select one:
a.
Solvent cement
b.
Heat fusion
c.
Crimp rings
d.
Mechanical joints
The correct answer is: Heat fusion
What is the name given to plastic that becomes soft when heated and hard when cooled?
Select one:
a.
Thermoplastic
b.
Proxylene
c.
High density
d.
Thermoset
The correct answer is: Thermoplastic
Which of the following plastics would ·be classified as a thermoset?
Select one:
a.
FRP
b.
PVC
c.
ABS
d.
CPVC
A
Which of the following plastics has the highest expansion rate?
Select one:
a.
CPVC
b.
PVC
c.
PEX
d.
ABS
C
What is the maximum operating temperature of ABS piping?
Select one:
a.
140 °F
b.
100 °F
c.
180 °F
d.
220 °F
C
What is the standard length of 4 inch plastic DWV piping?
Select one:
a.
10 feet
b.
20 feet
c.
14 feet
d.
12 feet
The correct answer is: 12 feet
Identify the minimum thickness of plastic piping that may be joined by threading?
Select one:
a.
Schedule 40
b.
Schedule 80
c.
Schedule 20
d.
Schedule 160
B
What color is used for CVPC piping designed for fire suppression applications?
Select one:
a.
Black
b.
Purple
c.
Orange
d.
Red
C
Which of the following plastics require a primer prior to solvent welding?
Select one:
a.
PVDF
b.
ABS
c.
PEX
d.
PVC
D
Cast iron soil pipe is made from:
Select one:
a.
grey cast iron
b.
silicon iron
c.
Duriron
d.
white cast iron
A
Which of the following items was used specifically for horizontal lead and oakum joints ?
Select one:
a.
Ladle
b.
Running rope
c.
Yarning iron
d.
Caulking iron
The correct answer is: Running rope
What material may be used to join bell and spigot cast iron soil pipe?
Select one:
a.
Potassium Permanganate
b.
Philplug cold caulking compound cord
c.
Silicon caulking
d.
Epoxy cement
The correct answer is: Philplug cold caulking compound cord
Mechanical joints used for glass piping are typically lined with:
Select one:
a.
Teflon
b.
Asbestos
c.
Nitrile
d.
Toluene
The correct answer is: Teflon
What type of ends will be found on a 90° glass elbow?
Select one:
a.
Bell
b.
Beaded
c.
Plainend
d.
Threaded
The correct answer is: Beaded
Which of the following chemicals should not be used with glass piping?
Select one:
a.
Bromine
b.
Hydrochloric Acid
c.
Hydrogen Peroxide
d.
Alkaline Solution
Feedback
The correct answer is: Alkaline Solution
Which of the following is not permitted to be installed in a drainage system underground/under a building?
Select one:
a.
Red Brass Pipe
b.
Vitrified Clay Pipe
c.
Welded and Seamless Steel Galvanized Pipe
d.
Cellular Core PVC Pipe
able A 2.2.5.
The correct answer is: Welded and Seamless Steel Galvanized Pipe
What is the most common method of joining asbestos-cement DWV piping?
Select one:
a.
Threading
b.
0-rings
c.
Wiped lead
d.
Solvent cement
The correct answer is: 0-rings
Which of the following would not be suitable for an underground drainage system?
Select one:
a.
Welded and Seamless Galvanized Steel Pipe
b.
ABS Schedule 40
c.
Vitrified Clay Pipe
d.
Concrete Pipe
The correct answer is: Welded and Seamless Galvanized Steel Pipe
A pipe measurement is 18 1/2 inches C-C of elbows. If the thread engagements is 5/16 inch and the F-C measurement (throw) is 5/8 in., what length of pipe must be cut?
Select one:
a.
18 1/2 inch
b.
17 7/8 inch
c.
17 1/4 inch
d.
17 9/16 inch
The correct answer is: 17 7/8 inch
We are to make an offset using two 22 1/2 degree elbows and the horizontal offset is 14 inches, what will be the center to center measurement between the two 22 degree elbows?
Select one:
a.
15 5/16 inches
b.
15 15/16 inches
c.
15 3/16 inches
d.
15 5/8 inches
The correct answer is: 15 3/16 inches
The C-C length of the angled pipe with 45 degree fittings is:
548mm
From the accompanying diagram, find the measurement for “x” and “y” if they are equal in length, 45 degree fittings are used and the offset 1 ft., 10 inches:
Select one:
a.
2 feet, 7 inch
b.
8 feet, 8 inch
c.
1 feet, 10 inch
d.
4 feet, 4 inch
The correct answer is: 4 feet, 4 inch
If a 12 foot offset is created using 45 degree elbows instead of 90 degree elbows, how much pipe will be saved?
Select one:
a.
5 feet 6 inch
b.
7 feet 0 inch
c.
4 feet 0 inch
d.
3 feet 6 inch
The correct answer is: 7 feet 0 inch
Calculate the end-to-end measurement of pipe ‘T’, if the center-to-face measurement of a 45 degree fitting is 1 1/8 of an inch and the thread engagement is 11/16 of an inch:Select one:
a.
31 feet, 7/16 inch
b.
31 feet, 11/16 inch
c.
31 feet, 15/16 inch
d.
31 feet, 3/16 inch
The correct answer is: 31 feet, 7/16 inch
A standard pipe thread is cut at an-angle of ________ degrees.
Select one:
a.
11 1/2
b.
60
c.
72
d.
30
The correct answer is: 60
The purpose of the square hole in the reamer blade of a tubing pipe cutter is:
Select one:
a.
a hand-hold for gripping the reamer
b.
to tighten the set screw on a hacksaw
c.
to open or close a “B”-tank valve
d.
to adjust the regulator pressure
The correct answer is: to open or close a “B”-tank valve
The wheels on the chain of a cast iron snap cutter:
Select one:
a.
are thinner than those on a steel pipe cutter
b.
are pressure points to break the cast iron pipe
c.
are diamond-tipped for long life
d.
are meant to roll around the pipe to cut it
The correct answer is: are pressure points to break the cast iron pipe
What is the correct sequence when preparing a flared connection on copper tubing ?
Select one:
a.
Flare, ream, flare nut, cut
b.
Flare nut, cut, flame, ream
c.
Cut, ream, flare, flare nut
d.
Cut, flare nut, ream, flare
The correct answer is: Cut, flare nut, ream, flare
What is the next step when you cut copper tubing ?
Select one:
a.
Ream
b.
Sand
c.
Flare
d.
Polish
The correct answer is: Ream
Which tool would be used to cut 2 inch or smaller diameter carbon steel pipe?
Select one:
a.
Pipe cutters
b.
Hacksaw
c.
Reciprocating saw
d.
Tubing cutters
The correct answer is: Pipe cutters
How do you bend Type L hard temper copper tubing?
Select one:
a.
Anneal, cool slowly, then bend
b.
Bend, heat, then cool slowly
c.
Bend, anneal, cool quickly
d.
Heat, cool quickly, then bend
The correct answer is: Anneal, cool slowly, then bend
What is used to join duriron pipe?
Select one:
a.
Threaded joints
b.
Welded joints
c.
Mechanical joints
d.
Brazed joints
The correct answer is: Mechanical joints
What are the typical concerns when making an expansion loop in copper?
Select one:
a.
Narrowing the throat
b.
Too small
c.
Kinking
d.
Too big
The correct answer is: Too small
Which type of pipe wrench would be best suited for installing one inch black iron pipe in a confined space?
Select one:
a.
Spud
b.
Chain
c.
Strap
d.
Compound
The correct answer is: Chain
How do you join lengths of glass piping?
Select one:
a.
Fiber glass resin
b.
Epoxy
c.
Mechanical joints
d.
Flared joints
The correct answer is: Mechanical joints
Which type of piping must be protected from ultra-violet light?
Select one:
a.
Galvanized
b.
Cast iron
c.
Plastic
d.
Pyrex
The correct answer is: Plastic
What would the rod diameter be when supporting a 6 inch diameter cast iron pipe ?
Select one:
a.
18mm
b.
13mm
c.
8mm
d.
6mm
The correct answer is: 13mm
“95-5” solder contains:
Select one:
a.
95% lead, 5% tin
b.
95% lead, 5% zinc
c.
95% tin, 5% antimony
d.
95% tin, 5% lead
The correct answer is: 95% tin, 5% antimony
Brazing alloys used for joining copper tubing to copper fittings:
Select one:
a.
may not require a flux
b.
makes the joint brittle
c.
must always be used with a flux
d.
must completely fill the joint in order to be effective
The correct answer is: may not require a flux
The process whereby molten solder is drawn into the joint is known as:
Select one:
a.
cohesion
b.
convection
c.
capillary action
d.
conduction
The correct answer is: capillary action
Two back-to-back floor outlet water closets have a rough-in measurement of 12 1/2 inches. If there is a nominal 2” x 6” wood stud wall, what is the center-to-center (measurement between the flanges)?
Select one:
a.
28 1/2 inches
b.
30 1/2 inches
c.
31 inches
d.
36 inches
The correct answer is: 30 1/2 inches
Solders and fluxes· having a lead content in excess of ____________shall not be used in a potable water system .
Select one:
a.
.2%
b.
2 %
c.
.5%
d.
.1%
2.2.9.2 (2)
The correct answer is: .2%
What are the acceptable methods for joining. underground copper water lines?
Select one:
a.
Grooved, Flared, Soldered
b.
Grooved, Brazed, threaded
c.
Flared, Soldered, Compression
d.
Flared, Compression, Brazed .
2.3.3.12
The correct answer is: Flared, Compression, Brazed .
What type of brazing alloy is permitted to be used for joining underground copper water lines?
Select one:
a.
BAg
b.
Silphos
c.
BCuP
d.
Silver solder
The correct answer is: BCuP
What is the procedure for cutting glass sight tubes?
Select one:
a.
Use a 1/16 inch zip cut blade, but keep the glass cool with water
b.
Completely score the tube, then tap it
c.
Rotate the tubing cutter, tightening the handle 1/8 of a turn per sweep
d.
Partially score the tube, then tap it
The correct answer is: Completely score the tube, then tap it
From the following list, the black iron pipe with the thinnest wall section would be designated:
Select one:
a.
XXS
b.
Std
c.
XH
d.
XS
The correct answer is: Std
Standard steel pipe is classified according to size by using the nominal diameter for all sizes from 1/8 inch up to and including:
Select one:
a.
12 inch
b.
10 inch
c.
14 inch
d.
16 inch
The correct answer is: 12 inch
Under similar freezing conditions, Type “K” copper is less likely to burst than steel pipe because it is:
Select one:
a.
more ductile
b.
smaller
c.
non-ferrous
d.
more tenacious
The correct answer is: more ductile
Galvanized pipe is steel pipe, coated with:
Select one:
a.
aluminum oxide
b.
oxide of tin
c.
zinc
d.
a nickel-zinc alloy
C
Ductile iron pipe is commonly lined with cement :
Select one:
a.
to prevent corrosion
b.
to help bind the steel molecules
c.
to give it added strength
d.
to aid electrolysis
The correct answer is: to prevent corrosion
Which of the following types of copper tube will withstand the greatest bursting pressure?
Select one:
a.
M
b.
K
c.
L
d.
H
The correct answer is: K
In the refrigeration and gas fitting trades, copper tubing sizes are commonly specified by:
Select one:
a.
their exact outside diameter
b.
their nominal outside diameter
c.
their exact inside diameter
d.
their nominal inside diameter
The correct answer is: their exact outside diameter
The crimp ring used on “PEX” (cross-linked polyethylene) joints should be positioned:
Select one:
a.
1/2 inch from the center of the fitting
b.
1/8 inch to 1/4 inch from the end of the tube
c.
flush with the end of the tube
d.
1/2 inch from the end of the tube
The correct answer is: 1/8 inch to 1/4 inch from the end of the tube
The abbreviation for the type of thread used on standard pipe and fittings is:
Select one:
a.
NC
b.
NPS
c.
NFT
d.
NPT
C
In description a tee fitting, the correct naming sequence for describing the fitting is :
Select one:
a.
Largest opening run , branch, smaller opening run
b.
Smallest opening run, branch, larger opening run
c.
Larger opening run, smaller opening run , branch
d.
Branch, larger opening run, smaller opening run
The correct answer is: Larger opening run, smaller opening run , branch
After tightening a fitting by hand, it’s turned by a wrench approximately:
Select one:
a.
3 1/2 to 4 1/2 turns
b.
1 1/2 to 2 1/2 turns
c.
2 1/2 to 3 1/2 turns
d.
1 to 2 turns
The correct answer is: 2 1/2 to 3 1/2 turns
The change in direction of a 1/16 bend is:
Select one:
a.
45 degrees
b.
11 1/4 degrees
c.
60 degrees
d.
22 1/2 degrees
D
When using pipe wrenches to tighten a valve onto a stationary pipe, where should they be placed?
Select one:
a.
Only one wrench is ever required
b.
One on the pipe and one on the end of the valve that is accepting the pipe
c.
One on the pipe and one on the end of the valve that is open (no pipe)
d.
Both on the valve
The correct answer is: One on the pipe and one on the end of the valve that is accepting the pipe
If a copper water pipe is to be connected to a galvanized-steel nipple, the fitting used should be:
Select one:
a.
a union
b.
di-electric
c.
exposed
d.
serviceable
The correct answer is: di-electric
After a soldered joint has been completed, the joint shall be:
Select one:
a.
thoroughly cleaned of all residue
b.
cleaned with TSP
c.
cleaned bright
d.
flushed with soap solution
The correct answer is: thoroughly cleaned of all residue
What would be required to braze a 2 inch brass MIP onto a copper tube?
Select one:
a.
No flux is required
b.
Petroleum based flux
c.
Low temperature flux
d.
High temperature flux
The correct answer is: High temperature flux
Which of the following copper tubing has the thinnest wall that could be used for a water service?
Select one:
a.
Blue
b.
Yellow
c.
Red
d.
Green
The correct answer is: Blue
Which tool is used to correct internal “hi-low” when preparing a 4 inch steel pipe for welding ?
Select one:
a.
A pencil grinder with a cone stone
b.
A 4 inch grinder with a cutting disc
c.
A 4 inch grinder with a 1/4 inch grinding disc
d.
A mini grinder with a flapper disc
The correct answer is: A pencil grinder with a cone stone
A sleeve is needed to accommodate 300 mm (12 inch) pipe with insulation that is 38 mm (1 1/2 inch) thick. What pipe size should be used for this sleeve?
Select one:
a.
400 mm (16 inch)
b.
350 mm (14 inch)
c.
450 mm (18 inch)
d.
300 mm (12 inch)
The correct answer is: 400 mm (16 inch)
A pipe is being suspended from a concrete structure using 1/2 inch wedge-type female inserts (expansion shield) for supports. What is the procedure for installing these inserts after drilling the correct size hole?
Select one:
a.
Place insert and tighten the locking unit
b.
Apply the epoxy and install the anchor
c.
Place the insert and set the wedge
d.
Insert the anchor and remove the locking nut
Feedback
The correct answer is: Place the insert and set the wedge
Which of the following statements is the correct description of swaging copper tubing?
Select one:
a.
To allow the copper tube to connect to other types of fittings.
b.
Allows to ease the sharp edges of copper tube for both the safety and to prevent damage to the tube edges.
c.
To allow lengths of copper tubing to connect to threaded components such as valves.
d.
To expand or to stretch the end of the copper tubing to allow another the tube to fit over another tube of same diameter.
d.
To expand or to stretch the end of the copper tubing to allow another the tube to fit over another tube of same diameter.
Feedback
What is the test performed on underground Petroleum lines to insure there are no defects to the protective coating?
Select one:
a.
Ultrasonic Test
b.
Beep Test
c.
Integrity Test
d.
Jeep Test
Feedback
The correct answer is: Jeep Test
When using tube benders to make a 90 degree angle, the pull handle moves towards the stationary handle until the?
Select one:
a.
90 degree notch lines up with the 90 degree line on the bending wheel
b.
0 degree notch lines up with the 90 degree line on the bending wheel
c.
45 degree notch lines up with the 90 degree line on the bending wheel
d.
0 degree notch lines up with the 0 degree line on the bending wheel
b.
0 degree notch lines up with the 90 degree line on the bending wheel
When it is required to field bevel pipe prior to welding, at what angle do you bevel the edges to?
Select one:
a.
25 degrees
b.
50 degrees
c.
75 degrees
d.
37.5 degrees
The correct answer is: 37.5 degrees
Before installing a cast iron fitting, how can you check to see if the fitting is cracked?
Select one:
a.
Pressure Test
b.
Gently tap fittings together or with a hammer
c.
Soap and water
d.
Cast Iron fittings never crack
b.
Gently tap fittings together or with a hammer
Some copper tubing is measured by O.D. while other copper tubing may be measured by the I.D. The refrigeration trades use ACR tubing and sometimes GP tubing, what does GP stand for?
Select one:
a.
Gas & Petroleum
b.
Galvanized Pipe
c.
Gas and Plumbing
d.
General Purpose
The correct answer is: General Purpose
Hard copper (types K, L and M) is supplied in straight lengths of?
Select one:
a.
10ft/21ft
b.
12ft/21ft
c.
10ft/20ft
d.
12ft/20ft
The correct answer is: 12ft/20ft
What is the correct sequence when installing grooved fitting assembly?
Select one:
a.
Check pipe and groove fittings, lubricate gasket, position gasket over pipe and fittings, then install housing and bolts
b.
Lubricate gasket, position gasket over pipe or fitting, align connection and slide into center, install housing and bolts, then tighten nuts
c.
Lubricate gasket, check groove dimensions, install housing and bolts, then tighten nuts
d.
Check groove dimensions, align connections and slide gasket into center position, then tighten nuts
The correct answer is: Lubricate gasket, position gasket over pipe or fitting, align connection and slide into center, install housing and bolts, then tighten nuts
What is pipe dope not designed to protect against?
Select one:
a.
Lubrication
b.
Dielectric Protection
c.
Corrosion resistance
d.
Seal
b.
Dielectric Protection
How many threads on a 1 inch black iron nipple?
Select one:
a.
14
b.
11.5
c.
10
d.
12
b.
11.5
How many threads on a 3/4 inch black iron nipple?
Select one:
a.
12
b.
14
c.
10
d.
11.5
b.
14
What is installed to protect downstream piping for ferrous metals from entering the system?
Select one:
a.
Neutralizing Tank
b.
Sump
c.
Strainers
d.
Magnetic P-trap
d.
Magnetic P-trap
Which type of thermoplastic pipe is not commonly used with solvent cement to join connections?
Select one:
a.
CPVC
b.
ABS
c.
PE
d.
PVC
c.
PE
When you thread plastic pipe (min. schedule 80), the pressure rating is reduced by?
Select one:
a.
15%
b.
75%
c.
50%
d.
25%
c.
50%
A NPS 14 will have an outside diameter of?
Select one:
a.
14 inch
b.
14.5 inch
c.
15 inch
d.
14.25 inch
The correct answer is: 14 inch
What should be done to the pipe prior to grooving?
Select one:
a.
Bevel the End
b.
Clean end with sand cloth
c.
Clean with TSP
d.
Level and Square
d.
Level and Square
The abbreviation MIP is short form for type of fitting?
Select one:
a.
Magnetic Iron Pipe
b.
Mitigation Iron Pipe
c.
Male Iron Pipe
d.
Malleable Iron Pipe
c.
Male Iron Pipe
Which of the following statements is incorrect regarding swagelok fittings?
Select one:
a.
Swagelok fittings use a sequential number code to identify material, sizes and component type.
b.
Disassembly of fitting is unnecessary before installation
c.
When tightening the nut for sizes 1 1/4” and larger from hand tight, rotate 3/4 of a turn with your wrench.
d.
Swagelok fittings come completely assembled, finger tight and ready to use.
c.
When tightening the nut for sizes 1 1/4” and larger from hand tight, rotate 3/4 of a turn with your wrench.
What is one major advantage of having a spectacle Blind in a pipeline?
Select one:
a.
It prevents foreign material from entering the pipeline
b.
Allows the user to notice if there is a leak in the system
c.
It acts as a dielectric fitting so two dissimilar metals can be join on either end of a flange
d.
It can be seen at a glance if the line is open or closed
Feedback
d.
It can be seen at a glance if the line is open or closed
What is the bolt angle on a flange that has 12 holes?
Select one:
a.
60 degrees
b.
30 degrees
c.
45 degrees
d.
90 degrees
b.
30 degrees
What is one difference between pipe and tube?
Select one:
a.
Tube is always sized to exact I.D.
b.
There is no difference
c.
Tube is always sized to exact O.D.
d.
Tube doesn’t have as much tolerance for O.D. and wall thickness
Feedback
c.
Tube is always sized to exact O.D.
From the following list below select the recommended pipe wrench sized used for 1/2”-1 1/2” inch pipe?
Select one:
a.
14 inch
b.
10 inch
c.
18 inch
d.
24 inch
a.
14 inch
Threads are of the proper depth when a new fitting can be screwed in by hand how many turns?
Select one:
a.
2 1/2 - 3 turns
b.
3 1/2 - 4 turns
c.
3 - 4 turns
d.
1 - 2 turns
a.
2 1/2 - 3 turns
When joining Butt fusion pipes together, mating surfaces are melted with?
Select one:
a.
Torch
b.
Double Plate Heat Exchanger
c.
Two 120V Electrodes
d.
Hot Plate Heater
d.
Hot Plate Heater
The Principle elements in stainless steel pipe are?
Select one:
a.
Chromium/Nickel
b.
Nickel/Cobalt
c.
Antimony/Zinc
d.
Chromium/Zinc
a.
Chromium/Nickel
The gasket inside a mechanical joint used to install cast iron drainage systems are typically made from?
Select one:
a.
Nitrile
b.
Neoprene
c.
Styrene-Butadiene Rubber
d.
Polyethylene
b.
Neoprene
What wrench is best suited for turning chrome-plated pipe?
Select one:
a.
Crescent wrench
b.
Friction wrench
c.
Square-jawed wrench
d.
Pipe wrench with cloth protection
Feedback
b.
Friction wrench
One major advantage of.a compound-leverage pipe wrench is:
Select one:
a.
less expensive
b.
less space needed to operate
c.
increased torque
d.
increased grip
c.
increased torque
If vertical pipe must be cut just above floor level, which tool should be used?
Select one:
a.
Internal cutter
b.
Three-wheel cutter
c.
External cutter
d.
Hacksaw
a.
Internal cutter
Which of the following would determine the drill speed for a drill bit?
Select one:
a.
Type of material
b.
Drilling position
c.
The type of lubricant used
d.
Thickness of the material
a.
Type of material
Which of the following valves would create the greatest friction loss when fully open ?
Select one:
a.
Angle Pattern Globe
b.
Ball
c.
Straight-pattern globe
d.
Gate
c.
Straight-pattern globe
Which piping materials may be used to replace a damaged galvanized water line in a historic building?
Select one:
a.
Polypropylene tubing
b.
ASTM A53 black iron pipe
c.
PVDF
d.
Galvanized pipe
d.
Galvanized pipe
How would you replace the packing in an 8-inch O.S.&Y. valve that is leaking?
Select one:
a.
Use a single length wrapped around the bonnet
b.
Use multiple pieces but stagger the joints
c.
Use multiple pieces and align the joints
d.
Use graphite paste and a grease gun
b.
Use multiple pieces but stagger the joints
