PRACTICAL PROBLEMS REFRESHER

Stillson wrench

A variation of pipe wrench with a swiveling serrated jaw and knurled control knob located betwen the frame forming the head and the handle of the wrench?

a. Pipe wrench

b. Stillson wrench

c. Rap wrench

d. End Pipe wrench

4"

As an experienced plumber, what is the recommended size of the drain serving water closet?

a. 3"

b. 4"

c. 5"

d. 6"

Black tin pipe

A brewery plant requires a piping system to convey beer, ale, spirituous liquor and distilled water. What kind of pipe to be used?

a. Black tin pipe

b. Copper Pipe

c. Cast Iron Pipe

d. Terra-cotta pipe

Wrought iron pipe

A red spiral line painted on a pipe identified the pipe as ___.

a. Cast Iron pipe

b. Wrought-iron pipe

c. Copper pipe

d. Brass pipe

Copper pipe

A hotel requires hot and cold water supplies. What kind of pipes best suited?

a. Cast iron pipe

b. Copper pipe

c. Galvnized wrought iron pipe

d. Plastic/synthetic pipe

Cast iron pipe

A registered master plumber is consulted to install piiping system for water, gas, steam and oil. What kind of pipe is recommended?

a. Cast iron pipe

b. Plastic pipe

c. Lead pipe

d. Wrought iron pipe

Wrought Iron Pipe

What kind of pipe to be used where heating panels are considered in concrete slabs for the purpose of melting snow?

a. Plastic Pipe

b. Wrought iron pipe

c. Lead pipe

d. Terracotta pipe

Wheel Pipe cutter

When cutting pipe that is coated internally with enamel or glass, delicate cor should be taken to avoid cracking or chipping the internal coating. What kind of tool that should NEVER be used for cutting such pipe?

a. Adjustable hacksaw

b. Pipe Reamer

c. Wheel pipe cutter

d. Square-edge pipe cutter

Nipple chuck

When a very short pipe is threaded. What will you see?

a. Hollow jumper

b. Nipple Chuck

c. Solid Jumper

d. Pipe tong

Turn Pin

What is that tool used for expanding the ends of lead pipe?

a. Shave hook

b. Turn pin

c. Drift plug

d. Dresses

2 sliding sections

When using an extension ladder, what will be the maximum sliding sections allowed?

a. 2 1/2 sliding sections

b. 3 1/2 sliding sections

c. 2 sliding sections

d. 3 sliding sections

2 meters

An 8 meters aluminum ladder is used in delivering plumbing fixtures to the second the foot of the ladder be placed from the wall of the building?

a. 2 meters

b. 2 1/2 meters

c. 3 meters

d. 3 1/2 meters

1/4 of the ladders length

As a registered master plumber, you have to use a ladder to carry the pipes to the second floor of the building, what will be the horizontal distance from the foot of the ladder to the wall that you considered proper?

a. 1/4 of the ladders length

b. 1/3 of the ladders length

c. 1/2 of the ladders length

d. 3/8 of the ladders length

Globe valve

What is that valve recommended for installation that call for throttling?

a. Globe Valve

b. Gate valve

c. Check valve

d. Angle valve

36 in

What is the approximate height above the floor level of a kitchen sink?

a. 30 in

b. 34 in

c. 36 in

d. 38 in

16"

What is the aproximate height above the floor level of a built-in bathtub floor level?

a. 12"

b. 16"

c. 18"

d. 24"

Pipe rest

What is the device used to support the water supply riser?

a. Pipe rest

b. Iron ring

c. Iron insects

d. Eye log bolt

Valve

What is that fitting necessary in a water supply system which is used to the water supply in some portion of the installation?

a. Meter stop

b. Valve

c. Curb stop

d. Corporation stop

Gate valve

What kind of valve is suited for the water main supply lines and pump lines?

a. Angle valve

b. Gate valve

c. Globe Valve

d. Check Valve

90 deg

Gnerally, the registered master plumber must be systematic in connecting the riser branches to the main of the water supply system. What will be the right angle of all branches connection to the main?

a. 30 deg

b. 45 deg

c. 60 deg

d. 90 deg

Caulking

What do you call the plugging of an opening with oakum, lead or other materials which are pounded into place or materials pounded into the opening?

a. Caulking

b. Plugging

c. Stopping

d. Closing

Solvent Cement

The material used to join or connect PLASTIC PIPE is called?

a. Lead

b. Flux

c. Solder

d. Solvent cement

2 hours

What is the MINIMUM length of time before a jointed plastic pipe be subjected to pressure test?

a. 1.5 hours

b. 2 hours

c. 2.5 hours

d. 3 hours

Sand

In bending plastic, what will be the practical material to be used to prevent flattening of the pipe?

a. Sand

b. Gravel

c. Water

d. Metal spring

Domestic Water distribution system

What is the part of the piping of a plumbing installation which supplies the plumbing fixtures with an adequate flow of water?

a. Soil and Vent piping system

b. Domestic Hot water piping system

c. Domestic Water Distribution system

d. Water and Waste piping system

1.5 m

What is the usual horizontal length that the cast iron be supported to prevent damage at joints caused by sagging?

a. 1.25m

b. 1.5m

c. 1.75m

d. 2.0m

Check Valves & Gate Valve

What will be provided to prevent contamination from the polluted water of the fire truck to the house water supply system?

a. Gate Valve

b. Check valves & Gate Valve

c. Water main stop

d. Water meter stop

Yarning iron

What is the name of the instrument which is used in caulking oakum in the joints of cast iron pipe?

a. Iron rod

b. Yarning Iron

c. Chisel

d. Angle Bar

Tall building

On what type of building are wet standpipes generally used?

a. Tall building

b. Large building

c. Very tall building

d. Smaller building

Standpipe

What is that feature which offers a convenient water supply for firement, making it necessary for the fire department to transport and uses much expensive fire fighting apparatus?

a. Stand pipe

b. Fire truck ladder

c. Fire truck

d. Overhead water tank

Red

Fire system piping is usually painted with?

a. Red

b. Yellow

c. Green

d. Blue

Curb Stop

What is the device which is to be installed on the water service between the edge of the street and the sidewalk line which serves as a control valve in case water supply in cut-off to the building?

a. curb stop

b. Meter stop

c. Gate valve

d. Corporation stop

When the water has to be controlled

What circumtances should the curb stop is used?

a. When the water has to be controlled

b. When the pressure is excessive

c. When the water pressur is low

d. When the water pressure can cause flooding

It serves as a control stop

Why is it corporation stop required when the main water pipe is tapped with pressure on?

a. It serves as a meter

b. It serves as a control stop

c. It serves as a pressur balancer

d. It serves as a shut-off when water is excessive

8

It is essential that pipe threads to be cut accurately to ensure that threads for fittings will be universal so that the manufacturers of pipe threading equipment follow the American Standard. How many threads per inch for pipes having a diameter of 3in, 4in and 5in?

a. 5

b. 8

c. 14

d. 18

40

The allowable tensile stress of wrought iron steel pipe is 750 psi. It is to be used for hot water supply with working pressure of 300 psi. What schedule of the pipe should you specify?

a. 20

b. 40

c. 60

d. 80

600psi

A schedule of 80 wrought iron pipe can withstand a steam pressure up to? n=100p/s

a. 125 psi

b. 200 psi

c. 600 psi

d. 500 psi

300psi

A wrought iron pipe schedule of 40 can withstand a steam pressure up to?

a. 125 psi

b. 200 psi

c. 250 psi

d. 300 psi

Dresser

Name that tool which is made of boxwood, dogwood or lignum vitae, and it is used for dressing or working sheet lead, lead pipe bends, and bath traps.

Ratchet stocks

What is the handy tool for threading the end of the pipe in a trench or in the corner of a cellar where a pipe projects too far and threaded in place?

a. Ratchet stocks

b. Taps

c. Single wheel pipe threader

d. Geared pipe threader

Cutting of internal threads

In the trade of piping, the ter, "tapping" is used to described _______.

a. Drilling of holes through metal

b. Cutting of internal threads

c. Smoothing of ridges

d. Joining of lead pipes

Keep pipe rigid for cutting

A pipe vise is needed to?

a. Keep pipe rigid for cutting

b. Straightened a tapere tap in a hole

c. Expands the ends of the lead pipe

d. Retain melted lead in a joint

Melting the pipe ends

In a certain plumbing installation, a lead pipe is being used. How do you usually join the lead pipe?

a. Melting the pipe ends

b. Threading the pipe ends

c. Tapping the pipe ends

d. Reaming the pipe ends

60 feet

What should be the maximum length of the ladder when fully extended of an extension ladders?

a. 40 feet

b. 50 feet

c. 60 feet

d. 70 feet

80psi

What will be the maximum water service pressure at the point where the building distribution system begins?

a. 80psi

b. 90psi

c. 100psi

d. 120psi

Lack of shoring

What is usually the primary cause of troubles in excavating operations for water pipes?

a. Inadequate drainage

b. Underground utilities

c. Lack of shoring

d. Stagnant Water

Metallic

What is the suitable gasket material for a flange union in oil lines?

a. Rubber or Asbestos sheet

b. Rubber or Asbestos composition

c. Metallic or Rubber composition

d. Metallic

Rubber

What is the suitable gasket material for flange union in cold water piping?

a. Rubber

b. Leather

c. Metallic

d. Asbestos

Metallic

What is the suitable gasket material for flange union in gasoline conduction?

a. Rubber or Asbestos Sheet

b. Rubber or Asbestos composition

c. Metallic or Rubber composition

d. Metallic

Lavatory or Wash basin

What is the smallest plumbing fixture used as the basis in determining the fixture unit value?

a. Lavatory or wash basin

b. Floor drain

c. Water Closet

d. Kitchen sink

100mm

As an experienced registered master plumber, what will be the ideal size of the P-trap that should be installed underground or embedded on a concrete slab?

a. 100mm

b. 150mm

c. 200mm

d. 250mm

1.47 pcs

A 100mm x 3meters plastic pipe is used to install in house drainage. The face-to-face distance is 4.40 meters. The engagement length is 45mm and the solvent cement per joint required is 16g.

I. Determine the number of pipes.

a. 1.47

b. 1.74

c. 1.62

d. 1.15

32

A 100mm x 3meters plastic pipe is used to install in house drainage. The face-to-face distance is 4.40 meters. The engagement length is 45mm and the solvent cement per joint required is 16g.

II. What is the amount of solvent in grams?

a. 32

b. 48

c. 64

d. 75

2,560

A 100mm x 3meters plastic pipe is used to install in house drainage. The face-to-face distance is 4.40 meters. The engagement length is 45mm and the solvent cement per joint required is 16g.

III. If the cost of sovent cement is 80.00 Php per gram, What is the total cost of solvent cement?

a. 2,560

b. 3,840

c. 5,120

d. 6,000

Fast removal of the waste with a minimum probability of leakage and stoppage of drain

What condition must be satisfied for the water supply in building?

a. fast removal of the waste with a minimum probability of leakage and stoppage of drain.

b. fuxtures should be vented to avoid siphonage or backflow

c. the drainage pipe should be graded properly for downward gravity flow of water towards the discharge point

d. Supply sufficient amount of water to each fixture and prevent backflow to avoid contamination.

8 gpm

Each fixture in the plumbing system represents a certain demand for water, what is the water demand of the wall hydrant?

a. 3 gpm

b. 5 gpm

c. 8gpm

d. 9gpm

4 gpm

Each fixture in the plumbing system represents a certain demand for water, what is he water demand of the BATHTUB FAUCET?

a. 2 gpm

b. 3 gpm

c. 4 gpm

d. 5 gpm

4 gpm

What is the water demand of a SHOWER HEAD?

a. 1 gpm

b. 2 gpm

c. 3 gpm

d. 4 gpm

3 gpm

What is the water demand of the SINK FAUCET?

a. 1 gpm

b. 2 gpm

c. 3 gpm

d. 4 gpm

3/4 gpm

What is the water demand of the DRINKING FOUNTAIN?

a. 1/2 gpm

b. 2/3 gpm

c. 3/4 gpm

d. 4 gpm

Nipple

What is the name of that piece of pipe less than 12 inches in length threaded on both sides?

a. Short pipe

b. Cut pipe

c. Pipe

d. Nipple

Close Nipple

What do you call that short pipe whose thread at both ends meet?

a. Close nipple

b. Short nipple

c. Shoulder nipple

d. Long nipple

Short pipe

What do you call that pipe whose thread at both ends leaves a small amount of space?

a. Cut pipe

b. Long pipe

c. Short pipe

d. Stack

3/4 inch

What is the minimum nominal diameter of water service line pipe which will provide the building with water requirements during peak demands?

a. 1/4 inch

b. 1/2 inch

c. 1/3 inch

d. 3/4 inch

5%

What is the tin content in a brass fitting?

a. 5%

b. 10%

c. 20%

d 25%

5%

What is the ZINC CONTENT in a brass fitting?

a. 25%

b. 20%

c. 10%

d. 5%

5%

What is the LEAD CONTENT in a brass fitting?

a. 5%

b. 10%

c. 15%

d. 20%

85%

What is the COPPER content in a brass fitting?

a. 80%

b. 85%

c. 90%

d. 95%

4

A 25mm diameter water pipe can carry water equivalent to how many 12mm diameter water pipe?

a. 3

b. 4

c. 5

d. 6

1/8 in per foot

The recommended fall per foot for a 4 in pipe and larger due to impractical depth is ________.

a. 1/2 in per foot

b. 5/8 in per foot

c. 1/4 in per foot

d. 1/8 in per foot

1/4 in per foot

The recommended fall per foot for a 3 in pipe and larger is ______.

a. 1/2 in per foot

b. 5/8 in per foot

c. 1/4 in per foot

d. 1/8 in per foot

3'

In roughing-in for lavatory that is to have a 1-1/2 in drain, the distance between the fixture trap and the vent is not more than _______.

a. 10'

b. 6'

c. 3'

d. 5'

2.1 ft

What is the maximum depth of trench for sub-surface drain tile where the soil is to satisfactory absorption?

a. 4.1 ft

b. 1.6 ft

c. 2.1 ft

d. 3 ft

3 gpm

What is the water demand of the WATER CLOSET TANK BALLCOCK?

a. 3 gpm

b. 2 gpm

c. 1 gpm

d. 4 gpm

Dry standpipe

Which type of fire line installation has become obsolete and is seldom used?

a. Automatic system

b. Wet standpipe

c. Wet standpipe and Siamese connection

d. Dry Standpipe

4 in.

Generally, what is the standard diameter of the standpipe for buildings two or three stories in height?

a. 4 in.

b. 6 in.

c. 3 in.

d. 2 in.

6 in.

Generally, what is the standard diameter of the standpipe for buildings more than six stories in height?

a. 4 in.

b. 6 in.

c. 3 in.

d. 2 in.

It is being served by the domestic water supply under constant pressure.

Why is a wet standpipe with Siamese connection considered most practical?

a. It is the specification of the fire department

b. There is no need for the fire department pumper to be used.

c. It is cheaper type of connection.

d. It is being served by the domestic water supply under constant pressure.

The danger of contamination of the building water supply from the unknown source

What is the disadvantage of the wet standpipe with Siamese connection?

a. the danger of the contamination of the building water supply from the unknown source.

b. the Siamese connection is expensive

c. the exposed Siamese connection and pipe can be subjected to vandalism.

d. the siamese connection can obstruct the sidewalk.

Cut and insert coupling

What is the most practical method of repairing or correcting leak of a plastic pipe?

a. cut and insert coupling

b. insert additional bigger pipe

c. cut and provide bushing

d. replace the pipe

Short offsets and unnecessary fittings

Careful installation of the waterr supply distribution is essential. Which statement differs among the group?

a. Sufficient grade and proper alignment

b. Short offsets and unnecessary fittings

c. Careful installed connections

d. Adequate size

Poor workmanship

Damage to property, leaking points, trapped pipping and water hammer in a water system are attributed to _______.

a. Poor workmanship

b. Poor design

c. Poor materials

d. Poor planting

Iron inserted on the tough floor sheating and slushed into the concrete slab

In what ways must the water distribution system be suspended from the basement ceiling in large concrete buildings?

a. Using lead pipings

b. Using wooden plugs

c. Using eye log bolts

d. Iron inserted on the tough floor sheating and slushed into the concrete slab.

It will fail to close tightly

Why is that it is not good practice to use a gate valve on a lawn sprinkler?

a. it is expensive

b. It is bulky

c. It will fail to close tightly

d. It is hard to operate

It is convenient to provide a drum valve to make it possible to drain the entire water system.

Why must basement water supply must be properly graded and aligned?

a. to pitch the water line to one low point

b. it is convenient to provide a drum valve to make it possible to drain the entire water system.

c. to eliminate the danger of property damage

d. all of the above

In between the main supply line and pump line

Where should gate vave be used?

a. in between the main supply line and pump line.

b. after the water meter

c. after the entrance of the street water main

d. at the midpoint between the corporation stop and the curb stop.

6 in

What is the recommended distance above the flood level rim of a unit for a vacuum breaker to be installed?

a. 6 in

b. 4 in

c. 9 in

d. 12 in

Drainage cannot be affected by gravity

In what instances that a mechanical drainage will be used?

a. The volume of sewage is excessive.

b. Pump or ejectors are readily available

c. Building is provided with basements and sub-basements

d. Drainage cannot be affected by gravity

Wrought iron pipe

What kind of pipe usually used as leaders in tall buildings?

a. Wrought iron pipe

b. Plastic pipe

c. Copper pipe

d. Cast iron pipe

Cast Iron Pipe

What will be the best kind of pipe for underground drains within the buildings?

a. Cement pipe

b. G.I pipe

c. Copper pipe

d. Cast Iron Pipe

Adequate cleanouts

The drainage system in the building shold be designed, constructed and maintained as to guard against foulig, deposits of solids and clogging. What feature should be provided to make maintenance efficient and effective?

a. Adequate cleanouts

b. Adequate water seal traps

c. Adequate vent pipes

d. adequate water supplies

Excessive rainwater hinders the treatment of the sewage

Why is rainwater leaders are often not included as part of the sanitary drainage system?

a. Not to overload the sewerage system

b. Rainwater has no cleansing effect

c. Volume of water is unpredictable

d. Excessive rainwater hinders the treatment of the sewage.

Smoke tight

Which word does not apply to the plumbing system?

a. Smoke tight

b. Air tight

c. Water tight

d. Gas tight

200,000 m^3

If a plumbing plan scaled as 1:10,000, then 10cm x 20cm catchment area in the plan is equal to ____________ of rainfall in actual for every hour. Assume 100 mm/hr rain intensity.

a. 300,000 m^3

b. 200,000 m^3

c. 400,000 m^3

d. None of the above

Circle

What is the shape for the signage for the women's comfort room in order to aid visually impaired woman readily determine whether a washroom is for men or women?

a. Circle

b. Rectangle

c. Triangle

d. Square

29.4

A fire sprinkler head has a k-factor of 7.6, what is the flow rate at 15 psi? Q=k√(p)

a. 24.3

b. 29.4

c. 41.3

d. 57.1

Indicating

All valves controlling the supply of a fire sprinkler system should be:

a. Gate

b. Labeling

c. Indicating

d. Insulating

Parallel

Where practical, all pipes from fixtures shall be run in what direction with respect to the nearest wall or building line?

a. Perpendicular

b. across

c. Offset

d. Parallel

30 psi

By regulation, the MINIMUM design pressure in distribution system is?

a. 20 psi

b. 30 psi

c. 35 psi

d. 40 psi

None of the above

Are there major difference between sewer and septic system in your home?

a. They are very similar

b. the only differnce is in type of pipe used

c. One uses pressure and other uses gravity

d. None of the above