Eric's ip exam

Question 1

Which precaution is taken when removing insulation from piping?

a.
Wet it down with water.

b.
Wrap it in plastic.

c.
Cover surface area for falling debris.

d.
Positively identify the material.

Question 2

What is applied to a strap wrench to prevent it from slipping?

a.
Pumice

b.
Resin

c.
Sandpaper

d.
Wax

Question 3

What is the minimum length of 2 inch by 10 inch wooden planks required for a 2.4 meter (8 feet) long scaffold platform?

a.
2.4 meters (8 feet)

b.
2.7 meters (9 feet)

c.
2.6 meters (8 feet 6 inches)

d.
2.9 meters (9 feet 6 inches)

Question 4

Which hand signal is indicated in the following image?

a.
Lower the boom slowly.

b.
Lower the load slowly.

c.
Raise the boom slowly.

d.
Raise the load slowly.

Question 5

Given the following information:

Labor requirements are being estimated for the installation if the piping for in-floor heating

The floor space measures 9 meters by 10 meters (25 feet by 30 feet)

15 square meters (125 square feet) per hour can be completed per person.

How long will it take two tradespersons to complete this job?

a.
6 hours

b.
3 hours

c.
2 hours

d.
8 hours

Question 6

How is pipe for a medical gas system stored?

a.
With capped ends and separated from other materials

b.
With piping capped and placed in a climate controlled space away from any temperature fluctuations

c.
Placed in an area that is out of direct sunlight.

d.
With caps removed and all pipes wrapped using heavy polyethylene

Question 7

Which two tees are required for this piping installation?

a.
1 - 200mm x 150mm x 150mm

1 - 200mm x 200mm x 100mm

b.
1 - 200mm x 200mm x 150mm

1 - 200mm x 100mm x 100mm

c.
1 - 200mm x 200mm x 150mm

1 - 200mm x 150mm x 100mm

d.
1 - 200mm x 200mm x 150mm

1 - 200mm x 200mm x 100mm

Question 8

Refer to the following image to answer the question.

What is the distance of dimension “A” from the finished floor to the center of the drain?

a.
533mm (21 inches)

b.
545mm (21 1/2 inches)

c.
558mm (22 inches)

d.
629mm (23 1/2 inches)

Question 9

Refer to the Plan view image below to answer the question.

X = 18.3meters (60 feet)
Y = 2.5 meters (8 feet)
Z = 2.13 meters (7 feet)

What is the minimum number of hangers required inside the room for the horizontal 4 inch steel pipe when there is support at each end of the pipe as it goes through the wall? (not including ends)

a.
7

b.
8

c.
10

d.
9

Question 10

Refer to the image provided to answer the question.

Which length of copper tube is required to bend the expansion loop from point A to point B if the gain is 6mm (1/4 inch) per bend?

a.
1246mm (49 inches)

b.
1295mm (51 inches)

c.
1219mm (48 inches)

d.
1270mm (50 inches)

Question 11

What is the procedure used to assemble a compression joint on copper tubing?

a.
Cut, slide nut and ferrule over tubing, ream, push tubing completely into socket, then tighten nut.

b.
Cut, bevel, slide nut and ferrule over tubing, push tubing completely into socket, then tighten nut

c.
Cut, ream, slide nut and ferrule over tubing, push tubing completely in socket, then tighten nut.

d.
Cut, ream, slide nut over tubing, push tubing completely into socket, then tighten nut.

Question 12

What is the procedure for brazing a copper tube or tubing joint?

a.
Remove oxidization from pipe and fittings, heat to a minimum or 540 degrees C (1000 degrees F), then apply brazing rod.

b.
Remove oxidization from pipe and fittings, heat to a minimum or 260 degrees C (500 degrees F), then apply brazing rod.

c.
Remove oxidization from pipe and fittings, heat to a minimum or 260 degrees C (500 degrees F), then apply solder.

d.
Remove oxidization from pipe and fittings, heat to a minimum or 540 degrees C (1000 degrees F), then apply solder.

Question 13

What is the procedure to join PEX pipe using an expanding tool after the pipe has been cut square?

a.
Slide fitting into pipe, push ring over pipe, then expand pipe while secure.

b.
Slide ring over pipe, expand pipe with tool while turning head, then insert fitting.

c.
Expand ring with tool, insert fitting while turning pipe, then crimp.

d.
Expand pipe with tool, push ring over pipe, then insert fitting.

Question 14

A large diameter, new hub and spigot gasket plastic pipe is being installed. Which steps are required?

a.
Align pipe sections, lubricate both ends, then pull piping sections together.

b.
Align pipe sections, pull piping sections together, then silicone the joints.

c.
Align pipe sections, apply silicone to hub end, then pull piping sections together.

d.
Align pipe sections, lubricate hub end, then twist piping sections together.

Question 15

How is a tight or loose thread corrected?

a.
By applying additional cutting oil.

b.
By adjusting the dies.

c.
By re-reaming the pipe.

d.
By applying teflon tape

Question 16

Refer to the image below to answer the question.

What is installed between the flanges?

a.
Slip on Flange

b.
Socket Weld Flange

c.
Spectacle Blind

d.
Companion Flange

Question 17

What is the change in direction in a cast iron 1/8 bend?

a.
45 degrees

b.
90 degrees

c.
60 degrees

d.
22 1/2 degrees

Question 18

What is the procedure for cutting the pipe when inserting an MJ wye into a cast iron stack?

a.
Measure the length of the pipe, select tube cutter, then cut pipe 1/4 to 1/2 longer than the wye.

b.
Measure the length of the wye, select snap cutter, then cut pipe 1/4 to 1/2 inch longer than the wye.

c.
Measure the length of the pipe, select grinder, then cut the pipe 1/2 to 1 inch shorter that the wye.

d.
Measure the length of the wye, select hacksaw, then cut pipe to the same length as the wye.

Question 19

Which type of coupling is used when joining two field-cut lengths of glass pipe together?

a.
Fusion to fusion

b.
Bead to bead

c.
Plain to plain.

d.
Bead to plain

Question 20

What is the size of a storm building sewer (slope of 1:100) that has drainage from a 27 meter by 22 meter flat roof with rainfall intensity or 25mm per 15 minutes?

a.
4 inch

b.
8 inch

c.
6 inch

d.
5 inch

Question 21

An air conditioning fixture has a continuous flow of 5 liters per second. What is the hydraulic load?

a.
167.3FU

b.
3600FU

c.
158.5FU

d.
126.8FU

Question 22

The total length of a sanitary building sewer is 100 feet and the total fall is 2 feet 1 inch . What is the grade of the sewer per foot?

a.
1/4 inch per foot

b.
1/8 inch per foot

c.
1/2 inch per foot

d.
3/8 inch per foot

Question 23

Which type of support is used for a nominally horizontal pipe installed underground on a base that is not firm and continuous?

a.
Hangers supported by a structural slab.

b.
Sand.

c.
Wood blocking.

d.
Hangers supported by wood blocking under a slab.

Question 24

What is the minimum size for the inlet pipe connected to a septic tank?

a.
6 inch

b.
2 inch

c.
3 inch

d.
4 inch

Question 25

Which test is used to determine the suitability of the soil for a treatment field?

a.
Permeation

b.
Saturation

c.
Percolation

d.
Siphon

Question 26

What is the volume of effluent in an effluent chamber if the width is 0.9 meters (3 feet), the working depth is 1.8 meters (6 feet) and the length is 1.8 meters (6 feet)?

a.
2.92 cubic meters (108 cubic feet)

b.
3.24 cubic meters (36 cubic feet)

c.
1.62 cubic meters (18 cubic feet)

d.
4.50 cubic meters (15 cubic feet)

Question 27

For a septic field. What is the primary purpose of the washed gravel?

a.
To provide air space allowing aerobic bacterial action to take place.

b.
To provide support for weeping lateral.

c.
To allow ground water to dissipate before contacting effluent

d.
To keep lateral dry after effluent flushing.

Question 28

What is the minimum size vent required for a sewage sump with a 6 inch inlet?

a.
5 inch

b.
2 inch

c.
3 inch

d.
4 inch

Question 29

Refer to the image to answer the question.

What is the minimum size and type of vent required?

a.
1 1/4 inch individual and continuous

b.
1 1/4 inch continuous vent

c.
1 1/2 inch continuous vent

d.
1 1/2 inch individual and continuous

Question 30

What is the maximum number of liters allowed on a 4-inch combined building sewer at 2% grade?

a.
180L

b.
390L

c.
10800L

d.
5970L

Question 31

What is the minimum size of a floor drain that is permitted to be in a private residence?

a.
2 inch

b.
4 inch

c.
3 inch

d.
1 1/2 inch

Question 32

Refer to the image to answer the question.

What is the minimum size of the wye?

a.
4 inch x 4 inch x 3 inch

b.
4 inch x 3 inch x 4 inch

c.
3 inch x 3 inch x 3 inch

d.
4 inch x 4 inch x 4 inch

Question 33

What is the minimum size storm building drain for a continuous discharge of 5 L/s at a grade of 1:50?

a.
4 inch

b.
6 inch

c.
5 inch

d.
3 inch

Question 34

Item X is found in a twelve story building. What is the size and name of item X?

a.
3 inch offset relief vent

b.
3 inch yoke vent

c.
2 inch yoke vent

d.
2 inch offset relief vent

Question 35

What’s the minimum trap-arm length of a shower drain with a flow rate of 15 LPM?

a.
18 inch

b.
6 inch

c.
4 inch

d.
2 inch

Question 36

When may a floor drain be connected to a storm drainage system?

a.
If the building drain is not in the area.

b.
If the floor drain receives only clear water waste.

c.
If the building is not served by a building drain.

d.
If the floor drains are in the boiler room.

Question 37

What is the maximum temperature of effluent allowed to discharge into the drainage system?

a.
39 C

b.
49 C

c.
99 C

d.
75 C

Question 38

Where is a clean-out located to serve a running trap?

a.
Both downstream and upstream of every running trap.

b.
Upstream side and directly over every running trap.

c.
The nearest stack upstream of the running trap.

d.
Downstream side and directly over every running trap.

Question 39

What is the rod reading at point A?

a.
1.66 feet

b.
0.66 feet

c.
6.065 feet

d.
6.61 feet

Question 40

Find the depth of the pipe invert at dimension X from the figure.

a.
1.90 m

b.
1.95 m

c.
2.4 m

d.
2.0 m

Question 41

What is the number of flow control roof drains required for a 45 meter by 90 meter roof?

a.
5

b.
4

c.
6

d.
3

Question 42

A 6-inch building drain is graded at 1/8 inch per foot. The pipe is suspended 12 inches below the slab to the center. What is the distance from the suspended slab to the center of the 8-inch cored hole where the drain exits the building 160 feet away?

a.
32 inches

b.
28 inches

c.
20 inches

d.
24 inches

Question 43

The lowest portion of the drainage system receives 18 fixture units. What is the name of the pipe and the minimum grade required?

a.
Sanitary Building Drain, 1:133

b.
Sanitary Branch, 1:50

c.
Sanitary Branch, 1:133

d.
Sanitary Building Drain, 1:50

Question 44

Where is the main shut-off valve required to be located when it is supplied from a gravity-water tank?

a.
As close as possible to where the water service enters the building.

b.
On the water service pipe at the source of supply.

c.
Within 900 mm (36 inches) upstream of the water meter.

d.
Within 900mm (36 inches) downstream of the water meter.

Question 45

What is the maximum static pressure allowed at a fixture?

a.
700 kPa

b.
100 kPa

c.
550 kPa

d.
80 kPa

Question 46

Given the following information:

One bathroom group with flush tank water closets (6LPF)
One kitchen sink (8.3 LPM)
One dishwasher
One washing machine (3.5 kg)
Two combination hot and cold hose bibs (1/2 inch)
Pressure at the property line is 396kPa
Maximum velocity of 2.4 m/s
Most distant fixture is 32 meters from the property line to furthest source
Highest fixture is 5 meters above the finished floor
Water service elevation at property line is 3 meters below

(Use small building method)

What is the minimum size of a water distribution pipe directly after water service for a private use application?

a.
1 inch

b.
1/2 inch

c.
3/4 inch

d.
5/8 inch

Question 47

What is required if the volume of water on the top floor of a two story building is inadequate?

a.
Increase the size of water service.

b.
Install pressure regulating valve.

c.
Install double check valve.

d.
Decrease size of water service.

Question 48

What is done to achieve the greatest circulation potential in a hot water heating, gravity circulation system?

a.
Insulate the return line and supply line.

b.
Insulate the return line only.

c.
Insulate the boiler and return line.

d.
Insulate the supply line only.

Question 49

When must a domestic hot water recirculating system be installed?

a.
When the building is occupied by more that 4 families.

b.
When balancing valves are not available.

c.
When the developed line length is more than 30 meters.

d.
When the water temperature must exceed 54 C.

Question 50

If a bypass is installed around a pressure regulating valve, which valve type should be used?

a.
Globe valves on each side of the regulator and a gate valve for bypass

b.
Gate valves on each side of the regulator and a globe valve for bypass.

c.
Check valves on each side of the regulator and a globe valve for bypass.

d.
Gate valves on each side of the regulator and a check valve for bypass.

Question 51

What does the A identify?

a.
Balancing line

b.
Vent line.

c.
Pre-heated supply line

d.
Tempered water line

Question 52

What is the friction head loss on the discharge line of a submersible pump that is 350 feet long with a friction loss of 2 psi per 100 feet.

a.
16.17 ft

b.
13.24 ft

c.
19.17 ft

d.
7.00 ft

Question 53

What is installed below the frost level to create a seal on the service line serving a well pump?

a.
Pitless adapter

b.
Pressure gauge

c.
Plug

d.
Vent

Question 54

Which green source of energy is used to operate a pump system?

a.
Solar

b.
Fuel cells

c.
Nuclear

d.
Three-phase

Question 55

What is the minimum trap seal depth on a laboratory, potentially, acid drain waste system?

a.
38mm

b.
50mm

c.
100mm

d.
76mm

Question 56

What is the requirement for drainage lines from refrigerators and other food storage containers?

a.
Connected directly to a trap.

b.
Connected through a check valve.

c.
Discharged through an indirect connection.

d.
Discharged directly to drainage system.

Question 57

How is a dishwasher drain hose connected to a food disposal unit on a two compartment sink?

a.
By directly connecting downstream of the food disposal unit, downstream of the trap.

b.
By directly connecting upstream of the food disposal unit, upstream of the trap.

c.
By indirectly connecting downstream of the food disposal unit, downstream of the trap.

d.
By indirectly connecting upstream of the food disposal unit, upstream of the trap.

Question 58

Note: Water Softener sizing charts are based on 7 days. Regeneration cycles of more than 7 days are not recommended.

Given the following information:

Water per person: 75 gallons per day
Clothes washer: 25 gallons per day
Water hardness: 28 gpg
Regeneration cycle: 6 days

Which size of softener is required for a 3-person household?

a.
24000

b.
48000

c.
32000

d.
40000

Question 59

Why is the storage of reverse osmosis (RO) treated water critical to its potability?

a.
The water is void of chlorine.

b.
The water is very corrosive.

c.
The water is tasteless and odorless.

d.
The water is free of moist minerals.

Question 60

How must a water treatment device be connected to the drainage system?

a.
Indirectly with an air break.

b.
Directly into a storm sewer.

c.
Indirectly with an air gap.

d.
Directly into a floor drain.

Question 61

How much steam is produced by 2 cubic feet of water?

a.
970.4 cubic feet

b.
1970 cubic feet

c.
1700 cubic feet

d.
3400 cubic feet

Question 62

Given the following information:

Heat transfer fluid = water
Temperature difference of 40 F
Load of 135000 BTUH

What is the hydronic heating system flow rate in US gpm?

a.
27.0

b.
6.75

c.
5.63

d.
13.5

Question 63

On which hydronic heating system is a monoflow tee installed?

a.
A two-pipe.

b.
A one-pipe.

c.
A reverse return.

d.
A multi-zone.

Question 64

When installing a two-pipe reverse return system, what must be ensured?

a.
The radiator with the longest supply has the longest return.

b.
The monoflow tees are installed in the correct orientation.

c.
The run-outs to the radiator increase as the length of the supply main increases.

d.
The radiator with the longest supply has the shortest return.

Question 65

How far downstream should a flow switch be installed from a change of direction on a 1 1/2 inch supply?

a.
15 inches

b.
2 1/2 inches

c.
7 1/2 inches

d.
6 inches

Question 66

The design criteria for a hydronic heating system indicate a need for a high-mass boiler. What are the characteristics of a high-mass boiler?

a.
Flame modulation and variable flow rate.

b.
Long fire cycles and low temperature operation.

c.
High temperature operation and variable flow rate.

d.
Short fire cycles and high temperature operation.

Question 67

Which additional equipment is installed in a combi-unit application using a gas fired water heater?

a.
Timed circulator on the heating loop.

b.
Cast iron pump and strainer.

c.
Flue vent economizer.

d.
Glycol injection pump in the heating loop.

Question 68

What is the primary consideration when choosing the location of a boiler?

a.
Service access for the equipment.

b.
Proximity to a power source.

c.
Temperature of the condensing water required.

d.
Temperature of water required for the cooling system.

Question 69

Which organization develops standards and guidelines for the installation of hydronic cooling systems?

a.
ASHRAE

b.
ASPE

c.
ASTM

d.
ANSI

Question 70

What is the purpose of an outdoor temperature sensor on a hydronic heating system?

a.
To increase system temperature to compensate for a drop in outside temperature.

b.
To decrease system temperature to compensate for a drop in outside temperature.

c.
To increase system temperature to compensate for a drop in indoor temperature.

d.
To decrease system temperature to compensate for a drop in indoor temperature.

Question 71

Where is a thermostat installed for a hydronic system?

a.
On an insulated outside wall.

b.
As close as possible to the boiler.

c.
On an inside wall.

d.
Directly above the baseboard convector.

Question 72

Which type of high-temperature hydronic heat transfer unit is used when there is no usable wall space?

a.
In-floor tubing

b.
Concealed fan coil unit

c.
Vented wall heater

d.
Cast iron radiator

Question 73

What is done on a compressed air supply so that it may be used for spraying paint?

a.
Install dryer and adjust regulator

b.
Install oiler and cartridge filter

c.
Install dryer and oiler, and adjust regulator

d.
Install dryer, filter, oil separator and regulator.

Question 74

How is the potable water system protected when adding water to a non-potable rain water tank system?

a.
By installing a spring loaded plug valve.

b.
By creating an air gap.

c.
By installing a swing check.

d.
By connecting a lift check.

Question 75

Which fixture can be supplied by a non-potable water system?

a.
Urinal

b.
Clothes washer

c.
Bidet

d.
Emergency shower

Question 76

Which piping material is used for milk distribution in a dairy?

a.
Type M copper

b.
Galvanized steel

c.
Black iron

d.
Stainless steel

Question 77

What is the assembly method when installing high silicon cast-iron drainage systems?

a.
Welded

b.
Threaded

c.
Grooved

d.
MJ clamp

Question 78

What causes sugaring inside the pipe when installing welded stainless steel in a process piping application?

a.
Glazing

b.
Humidity

c.
Carbonization

d.
Oxidation

Question 79

How much is the pressure rating reduced by threading schedule 80 PVC?

a.
50%

b.
40%

c.
25%

d.
35%

Question 80

While monitoring a boiler, a pressure gauge indicates 15 psi. The normal operating pressure is 28 psi. Which is the first device to be verified?

a.
Low water cut-off.

b.
Water feed valve.

c.
High limit.

d.
Low limit.

Question 81

The manufacturer recommends an operating temperature of 90 F, a thermometer reads 160 F. What is done to reach the recommended temperature?

a.
Decrease temperature by 70 C.

b.
Decrease temperature by 70 F.

c.
Increase temperature by 19 C

d.
Increase temperature by 19 F

Question 82

What is the maximum temperature of water discharging into a shower?

a.
49 C

b.
43 C

c.
40 C

d.
60 C

Question 83

What is done before checking the air charge in an diaphragm expansion tank on a potable water system in a multiple story building?

a.
Keep system pressurized, keep all faucets closed, then open a drain valve at level of tank.

b.
Isolate the system, then maintain system pressure

c.
Isolate the system, then drop system pressure to 15 psi.

d.
Isolate system, open faucets on upper floors, then open a drain valve at level of the tank.

Question 84

A supply pump in a shallow well system starts up each time a faucet is opened. What is the cause?

a.
Pressure tank is water logged.

b.
Foot valve is not holding.

c.
Pump is not sized correctly.

d.
Pressure control switch is set too high.

Question 85

An electric water heater was installed with a piping arrangement that allowed back siphonage caused by insufficient water supply. Which problem would service personnel expect to find?

a.
Temperature and pressure relief valve has accidentally discharged.

b.
Electric elements have become overheated and burnt out.

c.
High limit water heater controls have tripped out or short circuited.

d.
Integral energy cutoff switch has shut off the power supply.

Question 86

A pressure pump is leaking between the impeller and the motor. What is the cause?

a.
Warped volute casing.

b.
Cracked impeller.

c.
Bent shaft.

d.
Worn mechanical seal.

Question 87

A cast iron soil stack has deteriorated 500mm (20 inches) above a concrete floor in a basement. What is the first step in the repair process?

a.
Support the soil stack.

b.
Support the trap arms.

c.
Cut the soil stack.

d.
Remove the trap arms.

Question 88

What is done to reduce water hammer or excess noise within a potable water system?

a.
Increase the water service pipe size and increase water pressure.

b.
Install shock arrestors on the piping being served.

c.
Increase the water pressure and reduce the distribution piping size.

d.
Install quick closing valves on showers and appliances.

Question 89

During the inspection of a hydronic heating system, the water in the boiler absent of solids, but black in color with a stagnant odor. What is recommended?

a.
Boiler should be cleaned, flushed and refilled with demineralized water.

b.
The water needs to be treated with oxygen and iron reducing agent,

c.
The boiler is corroding from the inside and replacement should be considered.

d.
No action is required, as the characteristics of the water are typical.

Question 90

What is done if backflow from a hose bibb is contaminating the potable water lines?

a.
Replace the atmospheric vacuum breaker.

b.
Replace the hose connection vacuum breaker.

c.
Install a check valve.

d.
Install a pressure vacuum breaker.

Question 91

When field beveling pipe for welding what angle do you bevel the pipe edge to?

a.
27 degrees

b.
37.5 degrees

c.
45 degrees

d.
80 degrees

Question 92

What is the best type of gasket to use for corrosive materials?

a.
Fiber

b.
Rubber

c.
Teflon

d.
Steel

Question 93

What is the temperature measuring device used in a tankless water heater?

a.
Thermometer

b.
ECO

c.
Thermistor

d.
Pyrometer

Question 94

Approximately how many liters of a 100% glycol solution would be required to increase a 420L heating system from 25% glycol to 35% glycol?

a.
42 L

b.
56 L

c.
74.5 L

d.
67.5 L

Question 95

What is the dangerous gas commonly found in sewers?

a.
19.5 - 20.2 % Oxygen

b.
CO

c.
CO2

d.
H2S

Question 96

How often should the webbing in a hard hat be replaced?

a.
Annually

b.
Every 5 Years

c.
Every 3 years

d.
Every 10 years

Question 97

Which class of hard hat is mandatory for construction workers?

a.
Type 2, Class C

b.
Type 1, Class C

c.
Type 1, Class A

d.
Type 1, Class E

Question 98

What is the size of the opening for a manhole?

a.
600 mm

b.
750 mm

c.
450 mm

d.
1 m

Question 99

How many threads per inch will you find on a 1/2” iron pipe?

a.
8

b.
11.5

c.
16

d.
14

Question 100

How far from the hole/trench should heavy equipment be located?

a.
600 mm

b.
1 m

c.
300 mm

d.
500 mm

Question 101

How far from a house should a septic tank be located? (minimum)

a.
2 m

b.
5 m

c.
1.5 m

d.
1 m

Question 102

What is the minimum size drain valve for a steam boiler?

a.
1”

b.
1 1/4”

c.
3/4”

d.
1 1/2”

Question 103

Referring to the image. Using 45’ fittings, what is the travel?

a.
16.12’

b.
11.4’

c.
14.14’

d.
10.7’