Foundation study guide Package one Flashcards
1
Q
True or False: In describing a tee fitting, the size of the run is mentioned first, followed by the size of the branch.
A
True
2
Q
True or False: Pipe dope is usually applied only to the female threads.
A
False
3
Q
True or False: 90 degree bends do not impede the flow of fluids as much as 45 degree bends.
A
False
4
Q
True or False: Under similar freezing conditions, type “K” soft copper tubing is less likely to burst than steel pipe.
A
True
5
Q
True or False: 1” and 2” standard pipe threads have the same number of threads per inch
A
True
6
Q
True or False: “Duriron” is well suited for acid drains lines
A
True
7
Q
Besides steel and chrome, what other material or element makes up stainless steel?
A
Nickle
8
Q
What is copper alloyed with to create bronze?
A
Tin
9
Q
What is copper alloyed with to create brass?
A
Zinc
10
Q
Complete the following statement: “Fixtures are required to have…”
A
Smooth, corrosion - resistant surfaces.
11
Q
Choose the best answer that defines “vitrified”
A
Glasslike
12
Q
Which chemical below will affect “Pyrex” pipe?
A
Hydrofluoric acid
13
Q
What is the primary purpose for applying pipe dope to pipe thread?
A
To lubricate + cool the threads when tightening
14
Q
What would be done to shorten the time bn flushes of a tank - type urinal?
A
Turn the stem on the control stop counter clockwise
15
Q
What is the name given to a pip coupling that has bolts running parallel to the pipe to hold it together?
(see picture)
A
Dresser coupling
16
Q
What is the standard height of the flood level rim of a regular water closet bowl?
A
16”
17
Q
What is the thread used on standard pipe / fittings called?
A
NPT: National Pipe Thread
18
Q
When a screwed cast iron fitting is excessively tightened, what will be the most likely result?
A
A cracked fitting
19
Q
After tightening a fitting by hand, approximately how many turns are made by a wrench?
A
2 ½ - 3 turns
20
Q
Why should the inside walls of pipe be free of burrs and other obstructions?
A
To decrease the resistance to the flow of fluids
21
Q
If a pressure gauge reads 14.73 psig, what would the absolute pressure be?
A
29.46 psia
22
Q
What is a wrench used to tighten a flat-faced plumbing fitting called?
A
Spud wrench
23
Q
What size of pipe wrench is recommended for use on pipes ½” and ¾” ?
A
14”
24
Q
What does the schedule number on a pipe indicate?
A
the wall thickness
25
Of the black iron pipes, which number indicates the thinnest wall section?
STD
26
When the diameter of a pipe is doubled, how much does its capacity to convey liquids increase by?
4 times
27
What is a non-ferrous metal?
Tin
28
To prevent black iron from rusting during transit, what protective coating is applied to the pipe?
Lacquer
29
What do the letters "W.O.G" stamped on a valve body mean?
Water, Oil and Gas
30
If the specification reads, "(4) - ¼" x 2" brass nipples", What is the length of a nipple?
2"
31
Which of the following is not a method of steel pipe manufacture?
Victaulic
32
What would the number of threads / inch for 1/8, ½", 1 ½" . and 4"
27 TPI, 14 TPI, 11 ½" TPW
33
What describes the property that allows a metal to be drawn out?
Ductility
34
What describes or indicates the property that resists or keeps the particles of a body from being torn?
Tenacity
35
What best describes the ability of a body to transfer heat or electricity from one particle to another?
Conductivity
36
What best describes the property that allows a metal to be rolled into sheets of various shapes w/o breaking or tearing?
Malleability
37
How much does mercury weigh in comparison to water?
13.6 Times as much as water
38
Finish the sentence, "Atmospheric pressure…"
(increase or decreases with higher altitude)
decreases at higher altitudes
39
39. Math question
40
What is a magnesium rod installed to be sacrificed to the effects of electrolysis known as?
An anode
41
Which of the following metals is lowest on the EMF series?
Copper, Magnesium, gold, tin?
Magnesium
42
Which of the following is not an alloy?
Solder, bronze, copper or brass
copper
43
In order to produce smooth, accurate threads and to cool and lubricate the dies, when is thread cutting oil applied?
During threading
44
What is the purpose of the foot switch used on a power drive? (besides safety)
It's an on / off switch
45
What should the first thing to do when servicing a power vise?
Unplug the power cord
46
How should shaft bearings on a power vice be lubricated?
With grease
47
If extension cords must be used with power tools, what should they have?
a 3-prong plug on one end and a 3-pole receptacle on the other end
48
Why should you not reach across a power vice?
Your foot may come off the switch
you may lose your balance
you cloths may get oil on them
49
How is pipe secured in the chuck of a power vise?
By using the hand wheel
50
Complete the sentence, “when hand pipe cutters are used with a power vise…”
The vise rotates the pipe and the support bar prevents the cutters from rotating.
51
With a power vice, what is the only safe hand reamer to use
A fluted reamer
52
What is the power threader die head type that does not require reversing?
Quick - opening
53
Complete the sentence, “A roll groover for pipe…”
(about burrs)
Will not remove the burr
54
At what point does the coupling seal?
Where the gasket meets the pipe (closer to the end of the pipe)
55
Complete the sentence, “A power vice…”
Holds and turns pipe
56
What tool would be best to use to centre a vertical pipe rising out of the ground under a sleeve in the first floor slab?
A plumb-bob
57
What can a Rigid Model 700 portable drive be used to do?
Thread pipe
58
With mounted accessories, what can a Rigid Model 300 power vise serve as?
A power threader
59
Complete the sentence, “A universal drive shaft…”
normally drives a geared threader
60
How can grooves for joints in steel pipe be made?
By rolling and cutting
61
Where a hazardous material is transferred by a piping system, what must the system be?
Identified
62
In reference to WHMIS, what does provincial legislation apply to?
The storage, handling and use of hazardous material
63
What does WHMIS legislation specify that the employer is responsible to provide?
Worker education on controlled products
64
What does WHMIS legislation provide workers and employers with?
Information on all types of material
65
An average thread is cut approximately how many threads long?
12
66
What is cutting oil used for?
to cool the chasers
to reduce the power required
to help remove cutting chips
67
What does ductility of metal describe?
its ability to be shaped or drawn out
68
In reference to WHMIS, what is the employer responsible for checking?
That the controlled products being delivered are properly labeled
69
What does “WHMIS” stand for?
Workplace Hazardous Material Information System
70
Standard steel pipe is classified according to size by using the nominal diameter for what sizes of pipe?
1/8" up to and including 12"
71
At what angle is a standard pipe thread cut?
60 degrees
72
What is the thread cut on a pipe known as?
male taper thread
73
What is the number of threads per inch for an 8 - inch pipe?
8
74
What is the number of threads per inch for a 1 ¼" pipe?
11.5
75
If a 2" NPS pipe has an ID of 2.067" and an OD of 2.375", what is the wall thickness?
0.154 "
ID - OD / 2 = WT
76
A 2" NPS steel pipe is exactly 2.067" ID and the wall thickness is exactly 0.154". Wat is the exact OD?
2.375"
77
What is the function of a “ball drip” used on a fire department connection?
to drain the siamese connection
78
Which threads are cut by the “lead”?
The imperfect ones
79
At what size does NPS change to OD on mild steel and wrought iron pipes?
14"
80
What shall the upper end of every soil-or-waste stack terminate in?
a stack vent
81
Complete the sentence, “Practically all pipe threads are…”
right hand
82
Which one of the following should a spiral reamer NOT be used with?
a power vise
83
Backing is not required for what type of fixtures?
Vanity basin
84
When making an end-to-centre measurement using a threaded fitting, how many allowances must be made in order to cut and thread the pipe?
1 (the centre one)
85
When making a centre-to-center measurement using a threaded fitting, how many allowances must be made in order to cut and thread the pipe?
2 (both centres)
86
What are the number of degrees of direction change of a 1/16th bend?
22 ½ degree (16 of them make a circle, 360 degrees)
87
87. math question
88
Which one of the following would you use to support a 4" galvanized steel water pipe extending through more than 2 storeys?
Riser clamps
89
Which of the following would you use to support a 6" horizontal branch installed above ground?
Clevis hangers
90
What would you apply to a strap wrench to keep it from slipping?
Powdered resin
91
When a break occurs in a water main, what is likely to occur within the house piping?
negative pressure
92
If cleanouts for two-way rodding are to be installed on a building drain or branch at 50ft (15m) intervals, what min size would the piping be?
less than 2"
93
What is the min size opening for c/o that are 50ft (15m) apart and are capable of 2-way rodding?
Same size as the drainage pipe
94
What is the min size air gap allowable?
1" or 2 times the diameter of the supply pipe
95
What isn't the purpose of a plumbing vent?
Prevent noise from entering the building via drainage system
96
An existing pipe is 2 ½" ID and is to be replaced by two pipes equal in size. If the two pipes are to supply at least as much flow as the original, what is the smallest ID for these pipes?
2"
97
Which of the following would be used to assure trap seal protection?
Use a trap primer
98
What pressure range of acetylene would you likely be working with during oxy-acetylene welding?
1 - 5 psi
99
What approximate acetylene and oxygen pressures would you likely use for cutting of ¼" mild steel?
7 acetylene, 37 oxygene
100
an example of a direct cross connection would be:
a portable water main connection to a plumbing vent
101
A wax seal with an embedded plastic ring is known in the trade as a:
“Kant-leak”
102
The max height at which a worker can work above ground before requiring guardrails is:
10 ft
103
A hot water tank must have a shutoff valve located:
on the cold water inlet
104
If it was required to have a sink full of water, with hot water running continuously, what device could be used to achieve this?
install a standing waste
105
Under similar temp conditions, the expansion rate of copper pipe is:
more than steel pipe
106
A component of a hydronic system that employs an end switch is a:
4-wire zone valve
107
At what size does NPS change to OD on mild steel and wrought iron pipes?
14"
108
What is the purpose of the fire department connection on the outside of a building?
allow the fire department to boost the water pressure in the system
109
The min number and size of planks for a working platform is:
2 planks, 2" x 10"
110
When using wrenches to tighten a valve onto a pipe, the wrenches would be placed:
one on the pipe and one on the valve on the end the pipe is inserted into
111
A vacuum relief valve is used to:
relieve a negative pressure in a HWT
112
Shaft bearing on a power vise should be lubricated with:
with grease
113
The anode rod in a HWT:
becomes smaller with use
114
Soil pipe cutters (snap cutters) are designed to cut:
cast iron pipe
115
In areas subject to heavy frost conditions, the min size of the vent termination serving an individually-vented bathtub shall be not less than:
3"
116
In plumbing, the term “nominally horizontal” refers to a pipe graded to:
less than 45 degree angle with the horizontal
117
The resistance to flow in a piping system can be decreased most satisfactorily by:
increasing the pipe size
118
ASME stand for?
American Society of Mechanical Engineers
119
95/5 solder contains:
95% tin, 5% antimony
120
The density of a substance is defined as:
it's mass per unit volume
121
Which of the following valves would create the most friction losses when fully open?
globe valve
122
A negative pressure in a plumbing drain, waste and vent system can cause a trap to lose its seal by:
siphonage
123
Epoxy coating applied to ring hangers is required to prevent:
galvanic corrosion through dissimilar mental contact
124
The pivot point of a lever in known as a(an):
Fulcrum
125
A cross fitting is allowed in a plumbing system to connect:
Only vent piping
