UTB5 Piping System Layout and Plumbing Accessories

Question 1

What term as applied to plumbing and pipe fitting, is a term used for the installation of concealed piping and fittings at the time a building is being constructed or remodeled? (Page 5-1)

Answer 1

Roughing-in

Question 2

In setting the wall-mounted urinal, see that the rough-in of the waste pipe is at the correct height so after installation the urinal is within reach of the user. The lip of the urinal should be how many inches from the floor? (Page 5-7)

Answer 2

20-25

Question 3

What is equipped with running cold and hot water and is used for bathing external genitals and posterior parts of the body? (Page 5-8)

Answer 3

Bidet

Question 4

All types of drinking fountains should be installed with the orifice located from 30 to how many inches above the floor, depending upon the general height of the users? (Page 5-18)

Answer 4

40

Question 5

What are used to carry contaminated water to the sanitary or storm sewer? (Page 5-18)

Answer 5

Floor drains

Question 6

Most code requirements do not require floor drains to be vented if they are installed within how many feet of a vented drainage pipe line? (Page 5-19)

Answer 6

25

Question 7

What helps remove loose organic solids and sand or grit deposits from sewers? (Page 5-33)

Answer 7

Flushing

Question 8

Excavations over how many feet must be shored and ladders provided under safety requirements for excavation, building, and construction? (Page 5-36)

Answer 8

5

Question 9

When acids are used in working on piping, see that they are kept in only glass or what type of containers? (Page 5-38)

Answer 9

Lead

Question 10

When removing pipe, work from the top end of the pile as much as possible. Pipe larger than how many inches in diameter should be handled by means of a hardwood pipe stick? (Page 5-40)

Answer 10

2

Question 11

By what part should you initially remove surveying equipment from the carrying case?

Answer 11

Legs

Question 12

How many sliding portions does a Philadelphia rod have?

Answer 12

2

Question 13

Which of the following valves allows water flow in one direction only?

Answer 13

Check valve

Question 14

Which of the following types of pipe insulation has excellent weather-aging qualities?

Answer 14

Flex rubber insulation

Question 15

The engineer’s level is also referred to as what kind of level?

Answer 15

Dumpy

Question 16

How are the vertical cross hairs brought into exact alignment on the target?

Answer 16

By rotating the azimuth tangent screw

Question 17

When the hand level is used, the reflector inside the sighting tube is set at what degrees?

Answer 17

45 degree angle

Question 18

For a level to function accurately, the level must provide what type of line of sight in any direction?

Answer 18

Horizontal

Question 19

When you turn the left thumbscrew counterclockwise on a level, the bubble inside the vial will move in what direction?

Answer 19

Towards your right hand

Question 20

Leveling rods are used to measure vertical distance, which is the difference in elevation between a required point and what other requirement?

Answer 20

Line of sight

Question 21

The Philadelphia rod can be extended to what total length in feet?

Answer 21

13.10’

Question 22

When both sections of the Philadelphia rod are entirely closed, what is the total length of the rod in feet?

Answer 22

7.10’

Question 23

What color are the even-foot numeral markers on a Philadelphia rod?

Answer 23

Red

Question 24

What readings are possible when using the vernier scale and dumpy rod target?

Answer 24

Thousandths of a foot

Question 25

Which of the following is NOT a reason for target reading, vice a direct reading approach? A. When the instrumentman wants to ensure an accurate reading B. When a reading to the nearest 0.0001 foot is desired C. When the rodman recommends the target reading D. When the rod is too far from the level to be read

Answer 25

C. When the rodman recommends the target reading

Question 26

When is a rod reading accurate?

Answer 26

Rod is perfectly plumb at the time of the reading.

Question 27

How many spirit vials are associated with the vial rod level?

Answer 27

2

Question 28

What is the coloring scheme on all rods?

Answer 28

Painted white with graduation marks painted black

Question 29

The large numeral values on the rod represent whole feet; what do the small numerical values painted black represent?

Answer 29

Hundredths of a foot

Question 30

What term is used for a permanent object, natural or artificial, bearing a marked point whose elevation is known?

Answer 30

Bench mark

Question 31

If no frost is expected before surveying and construction commence, what type of TBMs are allowed?

Answer 31

Stakes

Question 32

Monument bench marks on permanent military installations are established in what type of system?

Answer 32

Grid system, 1/2 mile apart from each other

Question 33

Tide stations associated bench marks are classified two ways, primary and secondary; what observation period, in years, is required prior to a tide station being designated primary?

Answer 33

19 years or more

Question 34

What is the most common type of mistake associated with surveying operations?

Answer 34

Level that is out of adjustment

Question 35

(True or False) For underground utility construction, you need only to stake out the line; determining the grade of the piping is not necessary.

Answer 35

False

Question 36

What is used to transfer the grade from the sighting cord to the pipe?

Answer 36

Grade pole

Question 37

Which of the following is NOT presented on the plan and profile sheet? A. Horizontal line located in each system B. Invert elevation at each fitting C. Horizontal location of each fitting D. Azimuth of each piece of equipment in each system

Answer 37

D. Azimuth of each piece of equipment in each system

Question 38

The crowfoot symbol located on the centerline stake represents what reference point?

Answer 38

Vertical grade

Question 39

What is the distance in feet between stakes and hubs?

Answer 39

25 foot intervals

Question 40

At what distance in feet are sewer hubs offset from the centerline?

Answer 40

8 feet

Question 41

Where can the percentage of drop value of a sewer hub be located?

Answer 41

Plan and profile sheets

Question 42

What type of valve is used where a straight flow of water with the least amount of restriction is needed?

Answer 42

Gate valve

Question 43

What distinguishes one type of globe valve from another?

Answer 43

Internal structure of valve

Question 44

What valve is ideal when frequent throttling operations are required?

Answer 44

Globe

Question 45

In which of the following types of globe valves are the inlet and outlet openings in line with each other?

Answer 45

Straight type

Question 46

What type of valve is used as a stop valve on the suction side of a fire room pump?

Answer 46

Globe valve

Question 47

What material is provided to form a positive seal around the stem if the seal formed by the seat is damaged on a butterfly valve?

Answer 47

Packing

Question 48

What happens to the altitude valve if the pressure in the distribution system drops below normal working pressure?

Answer 48

Automatically opens

Question 49

When operating a ball valve, you notice the handle is in line with the piping; what position is the valve in?

Answer 49

Open

Question 50

Brass ball valves are used in which of the following applications?

Answer 50

Water service lines

Question 51

What happens to the position of the check valve if the pressure on the inlet side is greater than that on the outlet side?

Answer 51

Opens automatically

Question 52

Which type of check valve is used in horizontal lines?

Answer 52

Swing check valves

Question 53

Which type of valve is used to maintain pressure lower than supply pressure?

Answer 53

Pressure reducing

Question 54

In what direction is the diaphragm inside the pressure reducing valve forced if the discharge pressure is greater than the spring pressure?

Answer 54

Up

Question 55

How is the amount of spring pressure reduced on a pressure-reducing valve?

Answer 55

By turning the adjusting screw counterclockwise

Question 56

At what percentage above the set pressure will the pressure relief valve fully open?

Answer 56

20%

Question 57

(True or False) The hydraulic control valve is normally held in the closed position by both the diaphragm force and by fire main pressure acting against the disk.

Answer 57

True

Question 58

How often is maintenance of valve boxes conducted?

Answer 58

Twice a year

Question 59

Gear boxes are inspected at what interval?

Answer 59

Semi-annually

Question 60

Where are the position indicators located on the non-rising stem gate valve?

Answer 60

Floor stand

Question 61

What is the result of installing a valve stem upside down?

Answer 61

Sediment collects in valve handle.

Question 62

Which of the following methods determines visually whether or not the seat and disk make good contact?

Answer 62

Spotting-in

Question 63

(True or False) Spotting-in is NOT required for conduct at the completion of the grinding-in method.

Answer 63

False

Question 64

What method is required at the completion of the lapping method?

Answer 64

Spotting-in and Grinding-in

Question 65

Which compound grade is utilized for finish lapping?

Answer 65

Fine

Question 66

Which type of water volume meter is used with pipe less than 1 1/2 inches in diameter?

Answer 66

Disk

Question 67

Where is the water meter located?

Answer 67

Near the pressure-reducing valve

Question 68

How many different types of meter dials are used?

Answer 68

2

Question 69

In the circular-reading dial, when the hand on a scale is between two numbers, which number is read?

Answer 69

lower

Question 70

What is the primary purpose for insulation of piping?

Answer 70

Prevent heat passage from steam piping to outside air.

Question 71

Of the two types of insulation used with heating ducts, what is the purpose of the inside insulation?

Answer 71

Reduce vibration

Question 72

Rigid preformed sections of insulation are used on what type of equipment?

Answer 72

Pipe runs

Question 73

Which type of insulation is ideal covering for ice water piping?

Answer 73

Cork pipe covering

Question 74

What type of base primer is used to prevent corrosion caused by condensation?

Answer 74

Asphaltic

Question 75

Antisweat insulation is designed for which type of piping?

Answer 75

cold water pipes

Question 76

How many layers compose the antisweat insulation sheeting?

Answer 76

6

Question 77

How thick is frost-proof insulation?

Answer 77

1-1/4 inch

Question 78

When wire mesh is utilized as a covering base, what is the distance in inches from the piping that needs to be maintained?

Answer 78

1"

Question 79

What distribution element is used to carry water from a treatment center to the users?

Answer 79

Distribution mains

Question 80

(True or False) Mains can be located under paved roads.

Answer 80

False

Question 81

In the construction of long water supply lines, at what intervals, in feet, should shutoff valves be placed?

Answer 81

Not greater than 5,000

Question 82

How many feet from a building should fire hydrants be located?

Answer 82

50 feet

Question 83

Hydrants should not be placed more than how many feet from the edge of a paved roadway?

Answer 83

7 feet

Question 84

Hydrants should not be placed closer than how many feet from the front of any entranceway?

Answer 84

3 feet

Question 85

The operating nut for a fire hydrant should not be placed more than how many feet above the surrounding grade of the land?

Answer 85

4 feet

Question 86

In mass parking and maintenance areas, the tops of the fire hydrants must not be higher than how many inches above the ground?

Answer 86

24"