Chapter 3 - Interior Water Distribution and Interior Waste Systems Flashcards

1
Q

What is an indication of a possible water main break?

A

When you notice that the pressure gauges suddenly drop for example from 55 PSI to 35 PSI.

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2
Q

If a fire hydrant is opened nearby buildings and houses how would that impact their water service lines?

A

It would impact their water service lines by reducing pressure.

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3
Q

What is a last resort in determining the cause of pressure Lost within a plumbing system?

A

Digging down to the water main or service line to clear out any obstructions.

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4
Q

If you’re trying to locate a week that’s flowing underneath the concrete floor or between two concrete walls in the waters not visible at the break why would you be able to findwater flowing from somewhere else away from the break?

A

Because water taste the path of least resistance.

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5
Q

When you’re trying to find a leak but you’re not sure because the Area is dark or unlit what would you do to find the suspected leak?

A

You place a piece of paper under the suspect a leak and listen for dripping sounds or inspect the paper for the presence of water.

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6
Q

If there is a leak within the walls of the building how would this damage the building?

A

The leak would cause structural damage to the building.

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7
Q

What would you use to make a temporary repair to steel pipe?

A

You would use an emergency pipe clamp.

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8
Q

When making a temporary repair with an emergency pipe clamp how would you ensure that the repair is watertight?

A

By positioning the emergency clinic so that the gasket covers the whole.

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9
Q

Would you be able to make temporary repairs with an emergency pipe clamp above ground or underground?

A

You can use this type of clamp in both.

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10
Q

What type of clamp would you use to make temporary repairs on copper tubing?

A

You would use a clamp referred to as a Band-Aid.

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11
Q

What types of clamps would you use to temporarily repair cast iron pipe?

A

Full circle clamps,

Split repair clamps.

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12
Q

What are the minimum and maximum sizes that full circle clamps and split repair clamps come in?

A

6 to 30 inches.

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13
Q

What do full-circle clamps and split repair clamps have inside of the band?

A

Rubber gaskets.

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14
Q

In full circle clamps and split repair clams how are the ends of the gaskets designed to form an overlapping seal of consistent thickness?

A

The gaskets inside of these temporary repair clamps or tapered where it overlaps.

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15
Q

What type of metal are full circle clamps and split repair clamps made of?

A

They are usually made of stainless steel.

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16
Q

What type of clamps repair cast iron pipe leaks at caulked joints or fittings?

A

Bell joint clamps.

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17
Q

Before installing any type of temporary repair clamp what should you do to prepare for installation?

A

You should clean the pipe of all the dirt and rust.

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18
Q

How would you ensure that you’re using the correct sized clamps when making temporary repairs to any type of pipes?

A

You should measure the outside diameter of the pipe.

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19
Q

When using unions to make a permanent repair and steel piping how many inches away from the fittings would you install it?

A

4 inches away from the fittings.

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20
Q

When making permanent repairs what should you do to copper tubing before trying to repair it?

A

You need to drain the copper tubing of all water.

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21
Q

If a system that uses copper tubing uses compression type joints what would you do to repair leaks at the joints?

A

You would tighten the compression type joints with a wrench.

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22
Q

When you’re making repairs to the copper hot water line what would you do before draining the water?

A

You would make sure that the water heater is off before draining.

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23
Q

What would you use to make permanent repairs to cast-iron piping?

A

You would use compression couplings.

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24
Q

When making permanent repairs to cast-iron piping with compression couplings what are the first and second steps?

A

Slide the follower onto the pipes, slide the gaskets onto the pipes.

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25
Q

When making permanent repairs to cast-iron piping with compression couplings what is the third and fourth step?

A

You would slide the middle ring onto the pipe and place the repair section into position, slide the middle ring back until it is centered between the pipe and the repair piping.

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26
Q

When making permanent repairs to cast-iron piping with compression couplings what are the fifth and sixth steps?

A

You would slide the gaskets and followers of the middle ring, install the bolts and hand tighten them.

27
Q

When making permanent repairs to cast-iron piping with compression couplings what are the seventh and eighth final steps?

A

You would use a wrench to tighten the bolts using the crisscross method, use of compression coupling on each and to repair the piping.

28
Q

What would you use to clean the ends of plastic repair piping and couplings when making permanent repairs?

A

You would use solvent to clean the ends.

29
Q

When water main breaks what happens to this water system?

A

It causes a pressure loss in the system.

30
Q

What are the two types of leak repair?

A

Temporary and permanent.

31
Q

What should you notify the customers of when repairing their homes or businesses?

A

You should notify them of a water outage or lack of water pressure.

32
Q

When making repairs to the interior way system what are three ways to locate leaking pipes?

A

The visual, smoke, and peppermint test.

33
Q

When making repairs to interior waste systems would you be able to use the three types of ways to locate leaks in all pipe materials?

A

Yes you can use the visual, smoke, and temperament test and all pipe materials.

34
Q

What are the characteristics of a visual inspection when trying to find a leak within interior waste systems?

A

Water or water stains and the smell of sewer gases.

35
Q

When conducting a smoke test to find leaks inside of an interior waste system what would you do first?

A

You would plug off the entire system using drain caps or plugs.

36
Q

When conducting a smoke test to find leaks inside of an interior waste system how would you introduce smoke into the system?

A

By using a smoke machine or by using a smoke pellet.

37
Q

When conducting a smoke test to find leaks inside of an interior way system if smoke is coming out of the vents on the roof should you plug them?

A

Yes you should plug them.

38
Q

When conducting a smoke test to find the leaks inside of an interior way system how much PSI would you introduce into the system?

A

You would add 1/2 PSI to the system.

39
Q

How long would you wait before you start an inspection when conducting a smoke test?

A

You would wait 15 minutes.

40
Q

How would you monitor the pressure inside of a system when conducting a smoke test?

A

You would install a pressure gauge onto the system.

41
Q

When conducting a peppermint test to find a leak inside of an interior way system what is the first thing that you should do?

A

You should completely plug off the system.

42
Q

Where would you introduce peppermint oil inside of a system?

A

He would pour the peppermint oil down the building vents located on top of the roof.

43
Q

How much peppermint oil would you pour down each vent?

A

You would pour 2 ounces of peppermint oil down each vent.

44
Q

If the building is over five floors how much peppermint oil would you pour down each vent?

A

You would add 1 ounce per vent for the next five floors.

45
Q

A building has five floors how much peppermint oil would you pour down each vent?

A

2 ounces of peppermint oil.

46
Q

A building has 20 floors how much peppermint oil would you pour down each vent?

A

5 ounces per event.

47
Q

After you’re done adding the peppermint oil to each event in the system what would you do next?

A

You would pour 5 gallons of hot water into each bent then close off the vents.

48
Q

Why do you need to use two people to conduct a peppermint test?

A

Because the peppermint oil smell is so strong that the individual adding peppermint will become less sensitive to the smell.

49
Q

Is it okay to use different types of piping material when repairing drainage systems?

A

No you should always use the same piping material as the system.

50
Q

What are the two types of pipe primarily used on interior drainage systems?

A

Cast iron soil pipe and plastic pipe.

51
Q

What type of drainage piping material uses compression joints or no hub joints?

A

Cast-iron soil pipes.

52
Q

What type of joint uses a bill and speak it?

A

Compression joints.

53
Q

This type of joint is sealed by displacement and compression of a rubber gasket.

A

Compression joints.

54
Q

What type of joint uses a one piece neoprene gasket and a stainless steel shield and retaining clamps?

A

No hub joints.

55
Q

What are the advantages of using no hub joints?

A

They can be made in confined spaces, joints can be made quickly and few tools are required.

56
Q

What type of joint uses extra hangers when it is installed?

A

No hub joints.

57
Q

True or false? you can install no hub joints in inaccessible areas and you can also bury them.

A

False you should never do this.

58
Q

When you’re making permanent repairs to interior waste systems that use plastic piping how much should you twist the couplings after putting solvent cement on and inside the repair pieces?

A

You should twist the couplings 1/8th to 1/4 of a turn.

59
Q

True or false? You can use no hub couplings to repair PVC drainage systems. Why?

A

True because PVC and cast-iron soil pipe have the same outside diameter.

60
Q

What type of PPE would you need to cut cast-iron pipe?

A

Safety glasses and gloves.

61
Q

How many means of temporarily repair and cast-iron pipe are there?

A

There are three means.

62
Q

What two clamps are used to temporarily repair a cast-iron soil pipe?

A

Full circle and split repair clamps

63
Q

Other than broken pipe what is another reason for a water leak?

A

Poorly fitted joints.

64
Q

How many different ways of locating leaking pipes inside of an interior waste system are there?

A

There are three different ways.