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666 IP > Plumbing IP #2 Part B > Flashcards

Plumbing IP #2 Part B Flashcards

1
Q
  1. What is placed on the cold water inlet of a hot water tank to prevent cold water from being drawn from a hot water faucet?
    a. A dip tube
    b. A check valve
    c. A vacuum relief valve
    d. Baffles
A

a. A dip tube

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2
Q
  1. Turn the following types of copper will withstand the greatest busting pressure?
    a. Type M
    b. Type H
    c. Type K
    d. Type L
A

c. Type K

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3
Q
  1. Cutting oil is used to
    a. act as a seal
    b. act as lubricant
    c. help contain the swarf
    d. make removal of the chasers easier
A

b. act as lubricant

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4
Q
  1. The minimum size vent for a water closet is:
    a. 1 1/4”
    b. 1 1/2”
    c. 2”
    d. 3”
A

b. 1 1/2”

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5
Q
  1. In the formula “P = H x D”:
    a. P = pressure in lbs/inces sq.
    b. H = Height of a column of water in feet
    c. D = density of water per cubic inch
    d. all of the above
A

d. all of the above

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6
Q
  1. A fixture drain is:
    a. a pipe connecting a trap to another part of the drainage system
    b. a pipe connecting the waste opening of the fixture to the trap
    c. a pipe connecting the trap to the vent
    d. a pipe connecting horizontal branch to the vent
A

a. a pipe connecting a trap to another part of the drainage system

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7
Q
  1. The theoretical lift of a pump is directly related to:
    a. The friction in the suction line
    b. The atmospheric pressure
    c. Power of the pump
    d. The flow rate of the pump
A

b. The atmospheric pressure

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8
Q
  1. A pump that delivers a pressure of 40 psi would pump water:
    a. 18’ high
    b. 40’ high
    c. 57’ high
    d. 92’ high
A

d. 92’ high

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9
Q
  1. A pump that is connected to a pressure tank starts and stops frequently. This is probably due:
    a. too high pressure in the tank
    b. too low pressure in the tank
    c. too small a pump
    d. Water logging of the tank
A

d. Water logging of the tank

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10
Q
  1. The actual lift of a pump is less than the theoretical lift. This is caused by:
    a. The loss of efficiency due to friction
    b. The inability of the pump to create a perfect vacuum
    c. The changes in atmospheric pressure above sea level
    d. all of the above
A

d. all of the above

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11
Q
  1. Some types of plumbers putty should not be used when installing:
    a. a PO plug in a cultured marble basin or fibreglass shower
    b. a PO plug in an enamelled steel basin
    c. a waste and overflow in an enamelled steel bathtub
    d. A kitchen sink
A

a. a PO plug in a cultured marble basin or fibreglass shower

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12
Q
  1. The basic function of a fixture trap is:
    a. To provide a place to catch sediment
    b. Start a circular motion of waste water to scour piping
    c. To prevent sewer gases from entering the building
    d. Provide protection against positive or negative pressures within the DWV system
A

c. To prevent sewer gases from entering the building

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13
Q
  1. Proper distance that the base of an extension ladder should be from the:
    a. 4’
    b. 1/4 of its vertical length
    c. 5’
    d. 1/4 of its extended length
A

b. 1/4 of its vertical length

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14
Q
  1. Asbestos – cement pipe is commonly referred to as:
    a. white pipe
    b. transite pipe
    c. bituminized fibre pipe
    d. both a and b
A

a. white pipe

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15
Q
  1. Drainage piping up 3 inch diameter and smaller mass grade at least:
    a. 1.8” per foot
    b. 1/4” per foot
    c. 3/8” per foot
    d. 1/2” per foot
A

b. 1/4” per foot

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16
Q
  1. The minimum water seal of a P-trap is:
    a. 1 1/2”
    b. 2”
    c. 3”
    d. 4”
A

a. 1 1/2”

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17
Q
  1. Plumbing drains are designed:
    a. To run completely full to help scour the piping
    b. To run completely full to allow smaller sizing
    c. To run 1/2 to 2/3 full for adequate airflow
    d. To run a 1/4 to 1/2 full for future loads
A

c. To run 1/2 to 2/3 full for adequate airflow

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18
Q
  1. A “PO” plug stands for:
    a. Pop up
    b. plastic outlet
    c. patent overflow
    d. possible outage
A

c. patent overflow

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19
Q
  1. Developed length means:
    a. The distance along the piping when it has expanded
    b. Distance along the centreline of the piping
    c. Nominal diameter measured around the circumference
    d. The horizontal length excluding the vertical drop
A

b. Distance along the centreline of the piping

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20
Q
  1. The top edge of a fixture from which water overflows is called:
    a. The overflow outlet
    b. The flood point
    c. The floor level rim
    d. The PO plug
A

c. The floor level rim

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21
Q
  1. Assume that “A” is the south elevation of a building the sketch at ___ illustrates the east elevation
    a. A
    b. B
    c. C
A

c. C

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22
Q
  1. In the mechanical drawing, an invisible surface or address shown as which of the following lines?
    a. A
    b. B
    c. C
    d. D
A

c. C

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23
Q
  1. Maximum surface temperature that a hot water radiant floor heating panel should not exceed is:
    a. 80-100 F
    b. 100-140 F
    c. 160-180 F
    d. 180-200 F
A

a. 80-100 F

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24
Q
  1. “Nominal pipe size” refers to pipe sizes:
    a. 1” - 10” (25 - 250 mm)
    b. 1/2” - 12” (13-300 mm)
    c. 1/8” - 10” (7-250 mm)
    d. 1/8” - 12” (7-300mm)
A

d. 1/8” - 12” (7-300mm)

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25
Q
  1. Fixture for the purpose of overflow protection that does not receive the regular discharge from other fixtures, appliances or device is known as:
    a. Emergency fixture drain
    b. Critical level train
    c. Flood level rim drain
    d. Emergency floor drain
A

d. Emergency floor drain

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26
Q
  1. Any liquid waste other than clean water waster stormwater is known as;
    a. Water waste
    b. Rain water
    c. sewage
    d. subsoil drainage
A

c. sewage

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27
Q
  1. Horizontal piping, including any vertical offset that conducts sewage, Clearwater waster stormwater to building sewer is known as:
    a. Subsoil drain
    b. Building drain
    c. Branch
    d. Storm drain
A

b. Building drain

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28
Q
  1. The unobstructed vertical distance through air between the lowest point of a water supply outlet and the flood level rim of the fixture or device into which the outlet discharge is is known as the:
    a. air break
    b. atmospheric vacuum
    c. air gap
    d. critical level
A

c. air gap

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29
Q
  1. The length of a continuous vent is determined by its:
    a. Overall length from its upper end to its lower end
    b. Developed length from its connection with all the lower soil-or-waste pipe to open air
    c. Developed length from its connection with the soil or waste pipe to where it connects to a stack vent, vent stack, vent header or to open air
    d. developed length from its top to its bottom
A

c. Developed length from its connection with the soil or waste pipe to where it connects to a stack vent, vent stack, vent header or to open air

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30
Q
  1. Condition that would make it necessary to use a vent header on a plumbing installation would be:
    a. More than one continuous vent
    b. More than one branch vent
    c. Two or more vent stacks
    d. All of the above
A

c. Two or more vent stacks

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31
Q
  1. The minimum diameter of an individual vent for a 2 inch trap is:
    a. 1 1/4”
    b. 1 1/2”
    c. 2”
    d. Dependent upon vent length
A

b. 1 1/2”

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32
Q
  1. Minimum protection for cross connection control use on an irrigation system that is directly connected to the water supply system would be:
    a. Reduce pressure backflow assembly
    b. Atmospheric vacuum breaker
    c. Air gap
    d. Pressure vacuum breaker
A

b. Atmospheric vacuum breaker

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33
Q
  1. This drafting line indicates an alternating positions or moveable parts, or future location of equipment or piping:
    a. Section line
    b. hidden body line
    c. phantom line
    d. section line
A

c. phantom line

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34
Q
  1. Which of the following metals can be classified as ferrious?
    a. copper
    b. lead
    c. cast iron
    d. bronze
A

c. cast iron

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35
Q
  1. Which of the following pairs of metals would suffer the most from corrosion due to electrochemical action:
    a. Iron and nickel
    b. Lead and tin
    c. tin and iron
    d. copper and iron
A

d. copper and iron

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36
Q
  1. When you install a mechanical pop-up on a basin, the pull up rod would probably be best adjusted to which of the following?
    a. So it’s knob hits the top of the faucet before the plug is fully open
    b. So it’s knob is between !/4” and 1/2” above the faucet when the plug is fully open
    c. So it’s knob hits the top of the basin when the plug is in its fully open position
    d. No adjustment necessary: they are adjusted at the factory
A

b. So it’s knob is between !/4” and 1/2” above the faucet when the plug is fully open

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37
Q
  1. A 1/2” pipe, threaded correctly, will have an affected thread length of:
    a. Approximately 3/8 inch
    b. Approximately 1/2 inch
    c. Approximately 1/4 inch
    d. The same as the OD of the pipe
A

b. Approximately 1/2 inch

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38
Q
  1. Annealing copper tube means:
    a. to make it soft
    b. to make it hard
    c. to make it longer
    d. to make it shorter
A

a. to make it soft

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39
Q
  1. Which of the following is most destructive to both glass and virtified clay pipe?
    a. Clorinated compounds
    b. Hydrofluoric acid
    c. Hydrochloric acid
    d. Nitric acid everything
A

b. Hydrofluoric acid

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40
Q
  1. Which term means a pipe that connects the waste opening of a fixture to the trap serving the fixture?
    a. Direct connection
    b. Fixture outlet pipe
    c. Trap arm
    d. Fixtures drain
A

b. Fixture outlet pipe

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41
Q
  1. Application for a plumbing permit accompanied by plumbing drawings should show a layout of the portable water distribution system including the:
    a. Pipe sizes
    b. pipe sizes and valves
    c. pipe sizes and supports
    d. fixture unit values
A

b. pipe sizes and valves

42
Q
  1. In a case of conflict between the provisions of the plumbing code in those other reference document, the:
    a. Permit holder shall decide
    b. Authority having jurisdiction shall decide
    c. Reference documents shall govern
    d. Provisions of the code shall govern
A

d. Provisions of the code shall govern

43
Q
  1. Which term means the highest part of the lower interior surface of a trap:
    a. Trap standard
    b. Trap seal death
    c. Trap depth
    d. Trap weir
A

d. Trap weir

44
Q
  1. Which term means a vent pipe that is connected at its upper end to a vent header or is terminated in outside air and that is used to limit the pressure differential in a soil or waste stack?
    a. vent stack
    b. stack vent
    c. yoke vent
    d. relief vent
A

a. vent stack

45
Q
  1. Which term means a vent pipe that also serves as a soil or waste pipe?
    a. Stack vent
    b. Loop vent
    c. Wet vent
    d. fresh air inlet
A

c. Wet vent

46
Q
  1. What is required when a soil-or-waste stack receives discharge from fixtures located on more than 11 stories
    a. Relief vent
    b. vent stack
    c. the stack is extended full size through to outside air
    d. yoke vent
A

d. yoke vent

47
Q
  1. String, hair, rags or lint that extend over the weir of a trap may cause loss of trap seal due to:
    a. Direct siphonage
    b. Momentum siphonage
    c. Atmospheric induction
    d. Capillary attraction
A

d. Capillary attraction

48
Q
  1. The trap seal refers to the vertical distance measured from the:
    a. Bottom of the trap to the trap dip
    b. Trap weir to the trap dip
    c. Trap weir to the inside bottom of the trap
    d. Slip joint to the trap dip
A

b. Trap weir to the trap dip

49
Q
  1. Which fixture operates on an intermittent siphon
    a. Urinal flush tank
    b. flush tank toilet
    c. siphon jet bowl
    d. flushometer toilet
A

a. Urinal flush tank

50
Q
  1. Flush valve is commonly installed in place of a flush tank on water closets for commercial and industrial use because:
    a. It is cheaper
    b. It does not require large supply pipe size
    c. It has more rapid flashing action
    d. It makes less noise
A

c. It has more rapid flashing action

51
Q
  1. A double sanitary tee fittings shall not be used to connect the trap arms of:
    a. . Back to back kitchen sinks
    b. Side-by-side lavatories
    c. 3 compartment sinks
    d. Back outlet water closets installed back to back
A

d. Back outlet water closets installed back to back

52
Q
  1. A shower door must not open:
    a. Towards a water closet
    b. Into a shower stall
    c. By spring hinges
    d. Automatically
A

b. Into a shower stall

53
Q
  1. If a 1” pipe can supply 5 GPM, how many GPM can be supplied by 3” pipe at the same pressure
    a. 10
    b. 15
    c. 30
    d. 45
A

d. 45

54
Q
  1. A deep well jet pump with a particularly clogged jet would cause:
    a. A low vacuum reading on the suction line
    b. A high vacuum reading on the suction line
    c. No loss of vacuum on the suction line
    d. a loss of prime
A

b. A high vacuum reading on the suction line

55
Q
  1. When a minus pressure is created in a drainage system by the discharging of another fixture, loss of trap seal occurs by:
    a. Direct self siphonage
    b. Momentum siphonage
    c. Back pressure
    d. capillery action
A

b. Momentum siphonage

56
Q
  1. The minimum design rate of flow in a building sewer is considered to be approximately:
    a. 1 ft./s
    b. 2 ft./s
    c. 3 ft./s
    d. 4 ft./s
A

b. 2 ft./s

57
Q
  1. When a shallow well pump starts, it:
    a. Creates a perfect vacuum in the drop pipe
    b. Reduces atmospheric pressure in the drop pipe
    c. Pushes the air from the drop pipe
    d. Sucks water from the well into the drop pipe
A

b. Reduces atmospheric pressure in the drop pipe

58
Q
  1. The type or types of Copper tubing recommended for a water service is:
    a. Type M
    b. Type H
    c. Type L or K (soft)
    d. Type DWV
A

c. Type L or K (soft)

59
Q
  1. Self closing faucets are used essentially to:
    a. Prevent a person from being burned in the shower
    b. Shut off the lavatory by automatic means to prevent overflow
    c. Allow only a limited amount of water to run into a bathtub
    d. Prevent waste of water
A

d. Prevent waste of water

60
Q
  1. From the following list, choose the water closet bowl that comes in a wall outlet type only:
    a. Siphone Jet
    b. washdown
    c. blowout
    d. reverse trap
A

c. blowout

61
Q
  1. Which of the following fixtures would be least affected by high pressure drop?
    a. Flush valve WC
    b. Shower
    c. Bathtub
    d. Drinking fountain
A

d. Drinking fountain

62
Q
  1. The term “lead”, in reference to chasers, is:
    a. Space required on the chaser to prevent chip build up
    b. Specific angle on machined into the chaser to enable dies to start on the pipe
    c. Distance between threads at the back of the die and the threads on the pipe
    d. None of the above
A

b. Specific angle on machined into the chaser to enable dies to start on the pipe

63
Q
  1. Size of an air break shall be:
    a. 1 inch or equal to the size of the fixture dream
    b. Twice the effective opening
    c. Twice the size of the fixture drain
    d. 1 inch – except in the case of a drinking fountain where it may be three-quarter inch
A

a. 1 inch or equal to the size of the fixture dream

64
Q
  1. For cleanliness in public washrooms, the recommended bowl is the:
    a. Bidet type
    b. siphon type
    c. washdown type
    d. elongated type
A

d. elongated type

65
Q
  1. What is the maximum number of fixture units which may be drained through a 2 inch branch?
    a. 1
    b. 3
    c. 6
    d. 27
A

c. 6

66
Q
  1. What is the number of fixture units which may be drained through a 3 inch branch?
    a. 1
    b. 3
    c. 6
    d. 27
A

d. 27

67
Q
  1. Every roof drain shall be securely connected to the leader and provisions shall be made for:
    a. Condensation
    b. exapnsion and contraction
    c. overflow
    d. leakage
A

b. exapnsion and contraction

68
Q
  1. Cast iron soil pipe and fittings shall not be used:
    a. below a slab
    b. in a water system
    c. in an unheated crawl space
    d. in a firewall
A

b. in a water system

69
Q
  1. What was the minimum size of a branch receiving the discharge from (3) tank type water (3) and three?
    a. 3”
    b. 4”
    c. 5”
    d. 6”
A

b. 4”

WC @ 4 x 3

Lav @ 1 x 3

Total = 15FU

3” is good up to 27 FU

BUT not less than 4” downstream the 3rd WC

70
Q
  1. The backflow preventer is only suitable as protection against back siphonage
    a. DCVA
    b. PRBA
    c. AVB
    d. DCDA
A

c. AVB

71
Q
  1. A vent must terminate no less than:
    a. 3’ (1m) above a fresh air inlet
    b. 5’ (1.5m) above a fresh air inlet
    c. 7’ (1.65m) above a fresh air inlet
    d. there is no distance specified
A

a. 3’ (1m) above a fresh air inlet

72
Q
  1. Relief vent is required when more than ____ FUs discharge past a circuit vented branch?
    a. 1/5
    b. 3
    c. 6
    d. 8
A

c. 6

73
Q
  1. A vent stack is requiring when fixtures drain to a stack that is:
    a. More than two stories in height
    b. Four more stories in height
    c. more than 4 storeys in height
    d. at least 11 storeys in height
A

c. more than 4 storeys in height

74
Q
  1. Soft tempered copper shall be supported at intervals not exceeding:
    a. 2.25m
    b. 2.5m
    c. 2.75m
    d. 3m
A

b. 2.5m

75
Q
  1. Aluminum DWV pipe shall be supported at intervals not exceeding:
    a. 2m
    b. 2.5m
    c. 2.75m
    d. Not specified
A

d. Not specified

76
Q
  1. According to the national plumbing code of Canada, every trap shall have a minimum seal depth of:
    a. 38mm (min), 100 mm (max)
    b. 38mm (min), no max
    c. 50mm (min), no max
    d. none of the above
A

b. 38mm (min), no max

77
Q
  1. A die marked as “5/8 NC” would be used for threading:
    a. brass pipe
    b. galvanized pipe
    c. plastic pipe
    d. mild steel rod
A

d. mild steel rod

78
Q
  1. Which type of water metre would be best suited to an installation with both large piece clothes and relatively low flows?
    a. compound
    b. turbine
    c. nutating disc
    d. oscillating piston
A

a. compound

79
Q
  1. Standard pipe thread is cut at an angle of:
    a. 11 1/4 deg
    b. 30 deg
    c. 60 deg
    d. 72 deg
A

c. 60 deg

80
Q
  1. A flow switch may be found in which of the following systems:
    a. Hot water heating
    b. Fire sprinkler
    c. Hose and standpipe
    d. All of the above
A

d. All of the above

81
Q
  1. Seals of properly–vented legal traps may be broken by:
    a. Indirect siphonage
    b. Direct siphonage
    c. Evaporation
    d. Any of the above
A

c. Evaporation

82
Q
  1. The venting of a plumbing system is for the purpose of:
    a. Preventing traps siphonage
    b. Preventing the loss of seal by evaporation
    c. Preventing loss of seal by back pressure
    d. Both A and C
A

d. Both A and C

83
Q
  1. How soon must employer report an injury or occupational disease to the employer?
    a. Within 24 hours
    b. Within 48 hours
    c. 72 hours
    d. As soon as reasonably possible
A

b. Within 48 hours

84
Q
  1. What does the pictogram shown here represent:
    a. Hot work
    b. Oxidizing
    c. Explosion
    d. Fire
A

d. Fire

85
Q
  1. There are two types of wheels on the cutter amrs of the internal glass cutter. One is called the cutter wheel, and the other is call the _______ wheel.
    a. driver
    b. chaser
    c. leader
    d. follower
A

d. follower

86
Q
  1. What size pipe wrench is recommended when installing 32 mm and 38 mm (1 1/4 in and 1 1/2 in) threaded pipe?
    a. 61 cm (24”)
    b. 46 cm ( 18”)
    c. 36 cm (14”)
    d. 30 cm (12”)
A

b. 46 cm ( 18”)

87
Q
  1. When bending tubing, the short cutting of the corners gives additional length to the remaining section of straight tube. What is the length required commonly referred to as?
    a. loss
    b. gain
    c. cheat
    d. growth
A

b. gain

88
Q
  1. What is the name of tool used to measure the diameter of a pipe groove (groove depth)?
    a. pi tape
    b. roll tester
    c. diamometer
    d. groove gauge
A

a. pi tape

89
Q
  1. The maximum distance from the face of a grinding wheel to the tool rest should be:
    a. 1 mm (1/16”)
    b. 3 mm (1/8”)
    c. 6mm (1/4”)
    d. 12 mm (1/2”)
A

b. 3 mm (1/8”)

90
Q
  1. 1 m high calling of water over base area of 1 m² will exert how much pressure in kPa?
    a. 0.0361
    b. 0.491
    c. 9.81
    d. 62.4
A

c. 9.81
3. 28 x .433 x 6.895

91
Q
  1. What is the minimum height of a gaurd rail?
    a. 600 mm (24”)
    b. 750 mm (30”)
    c. 900 mm (36”)
    d. 1020 mm (40”)
A

d. 1020 mm (40”)

92
Q
  1. When several ropes are to be attached to a single hook, the connection to the hook be made with a:
    a. turnbuckle
    b. U-bolt
    c. shackle
    d. series of cable clips
A

c. shackle

93
Q
  1. How is the mechanical advantage of a hydraulic jack determined?
    a. by the length of the pump section
    b. by the length of the lifting piston
    c. by the ratio of the pumps pistons force to the lifting pistons force
    d. by the ratio of the pumps pistons diameter to the lifting pistons diameter
A

d. by the ratio of the pumps pistons diameter to the lifting pistons diameter

94
Q
  1. What is circulation in a gravity system caused by:
    a. The boiler being higher than the emitter
    b. the emitters being above the boiler piping
    c. the difference in the water densities in the system
    d. a pump
A

c. the difference in the water densities in the system

95
Q
  1. “the quantity of heat required to raise or lower the temperature of 1 pound of water by 1°F” is the description of what:
    a. A joule
    b. a calorie
    c. a watt
    d. a BTU
A

d. a BTU

96
Q
  1. When is a heating system in “thermal equilibrium”?
    a. When heating system adds more heat than it is lost
    b. Building loses more heat than is replaced
    c. Heating system is oversized
    d. When heat loss equals heat added
A

d. When heat loss equals heat added

97
Q
  1. What is the maximum water temperature permitted to a bathtub or shower head?
    a. 40 degrees C
    b. 49 degrees C
    c. 52 degrees C
    d. 60 degrees C
A

b. 49 degrees C

98
Q
  1. The maximum design flash cycle for HET (high-efficiency toilet)?
    a. 13.25 L
    b. 6.0 L
    c. 4.8 L
    d. 2.5 L
A

c. 4.8 L

99
Q
  1. What fixture is used to clean instruments or glassware with boiling water?
    a. Centrifuge
    b. Boiler
    c. Autoclave
    d. Sanitizer
A

d. Sanitizer

100
Q
  1. The water delivered from a fountain bubble must be directed upward at approximately what angle?
    a. 30 degrees
    b. 45 degrees
    c. 60 degrees
    d. 90 degrees
A

b. 45 degrees

666 IP (31 decks)

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