Deck 28: Plumbing and Construction Questions

Question 1

Which of the following tools and supplies would you need to install a bathtub or shower?

A)2-inch P-trap and necessary adapters
B)⅜-inch supply tubes
C)jigsaw with fine tooth blade (for cutting countertop)
D)basin wrench

Answer 1

A

Question 2

____________ fixtures are desirable where large numbers of transient people might be present or where the building occupants might be mentally incompetent or antisocial.

A)Vandal-resistant
B)Porcelain
C)Vitreous china
D)Medical

Answer 2

A

Question 3

Which of the following is a benefit of prefabrication?

A)Onsite provides better working conditions.
B)The shop provides better working conditions.
C)Workload and overtime increases.
D)Experienced technicians must complete all the work.

Answer 3

B

Question 4

Which trim item is used to control the supply water flow to the tank-type water closet?

A)supply stop
B)rotation limiter
C)loose key
D)aspirator

Question 5

Which of the following tools and supplies would you need to install a water closet?

A)safety glasses
B)miniature hacksaw
C)tongue and groove pliers
D)all of the above

Question 6

When ordering fixture trim, you must consider and determine which of the following?

A)quantity
B)type
C)style of the items
D)all of the above

Question 7

What kind of water closet has a tank bolted directly to the bowl?

A)one-piece unit
B)close-coupled
C)corner tank
D)reverse trap

Question 8

When installing a water closet for use by a 3-year-old with a physical disability, what height should the water closet be above the finished floor?

A)11" to 17" to top of seat
B)9½" to 10½" to rim
C)17" to 19" to top of seat
D)10½" to 13½" to rim

Question 9

Which flushometers or faucets are required in maximum-security institutions?

A)hold-open
B)self-closing
C)non-hold-open
D)loose key

Question 10

Which of the following is a benefit of preplanning?

A)enhances professionalism
B)enables you to work more quickly
C)lets you know how much and when materials are needed
D)all of the above

Question 11

From which of the following materials are lavatories NOT constructed?

A)vitreous china
B)porcelain
C)stainless steel
D)cultured marble

Question 12

To meet ADA requirements, accessible water closet seat heights cannot exceed _________.

A)16 inches
B)17 inches
C)18 inches
D)19 inches

Question 13

Which type of sink is used to provide sanitary drinking water without the need for a cup?

A)bar
B)culinary
C)water cooler
D)mop

Question 14

Which of the following fixtures is NOT permitted to be installed per code?

A)sitz bath
B)scrub sink
C)floor trough urinal
D)instrument sink

Question 15

Which term means the lowest temperature at which fuel oil will flow as a liquid?

A)pour point
B)flow point
C)flash point
D)fire point

Question 16

Which type of boiler is defined as a boiler in which steam or other vapor is generated at a pressure of more than 15 psi?

A)heating boiler
B)power boiler
C)high-pressure, high-temperature boiler
D)hot water supply boiler

Question 17

A(n)____________________ is a device connected to both the water system and the drainage system and requires water for its operation.

A)plumbing appurtenance
B)fixture fitting
C)plumbing appliance
D)plumbing fixture

Question 18

A(n)_________ is a piece of trim that covers the hole where the pipe penetrates the wall.

A)slip joint nut
B)trap adapter
C)rotation limiter
D)escutcheon

Question 19

Which of the following items must be included in accessible lavatory installations?

A)providing legroom under the fixture
B)covering supply and drainage piping with insulation
C)equipping fixture with blade-handle, single-lever, or automatic-sensor faucets
D)all of the above

Question 20

A(n)____________________ is a plumbing fixture designed for a specific function that can depend on energized components for proper operation.

A)plumbing appurtenance
B)fixture fitting
C)plumbing appliance
D)plumbing fixture

Question 21

The amount of heat required to raise the temperature of 1 pound of water 1 °F is a ___________.

A)therm
B)watt
C)kilowatt
D)BTU

Question 22

Which of the following is defined as a reduction in the primary air intake area that reduces the amount of gas being burned and results in a smaller, soft, and lazy flame?

A)overfiring
B)underfiring
C)spud
D)high efficiency

Question 23

Which of the following valve types is NOT approved for use in a gas system?

A)ball
B)gate
C)butterfly
D)plug

Question 24

Which of the following views includes landscaping plans?

A)elevation views
B)plan views
C)sectional views
D)none of the above

Question 25

Which type of corrosion occurs in areas where the material has external or internal forces pushing or pulling against it?

A)preferential
B)electromotive
C)stress
D)battery

Question 26

Volume meters record natural gas volume so that the utility can charge the user for the fuel used. The usual basis of the charge is the _________, the amount of gas that delivers 100,000 BTU.

A)therm
B)watt
C)kilowatt
D)gallon

Question 27

Which of the following most closely describes a plot plan?

A)shows the building elements that form the supporting structure of the project
B)shows the plantings and site improvements for the project
C)shows the cut and fill data, finish elevations, surface drainage, and contours
D)shows the building location; sidewalks, curbs, and drives; mechanical items and service locations; and locations to adjoining streets

Question 28

When sizing fuel gas piping for larger systems, the length of piping from meter to farthest appliance is increased by what percentage to allow for fittings in the pipe run?

A)50%
B)25%
C)75%
D)10%

Question 29

Which of the following is NOT a type of frame construction?

A)balloon
B)prestressed
C)platform
D)braced

Question 30

Which boiler control prevents a low-water condition from occurring?

A)aquastat
B)high limit control
C)low-water fuel cut-off
D)temperature-limiting control

Question 31

Which of the following problems might air in a hydronic system cause?

A)noise
B)rust
C)inhibited flow
D)all of the above

Question 32

Which of the following views includes the height of floors, roof, window, and door heads?

A)elevation views
B)plan views
C)sectional views
D)none of the above

Question 33

The ratio of the density of a gas to the density of air is called

A)specific heat
B)specific gravity
C)heating value
D)therm

Question 34

Which control is designed to remove air that is dissolved in water from a hydronic system?

A)air vent
B)expansion tank
C)compression tank
D)air separator

Question 35

The dimensional requirement of foundations is partially based on which two factors?

A)square footage and weight of the building
B)soil conditions and height of the building
C)square footage of the building and soil conditions
D)weight of the building and soil conditions

Question 36

The longest run method for sizing fuel gas piping bases pipe capacities on which of the following lengths?

A)the appliance that is closest to the meter
B)the appliance that is farthest from the meter
C)the appliance that is half the distance to the meter
D)none of the above

Question 37

The foundation plan should be compared with which plan to be sure that subsoil drainage is properly described?

A)roof plan
B)mechanical plan
C)framing plan
D)plot plan

Question 38

Which of the following most closely defines a plan?

A)a change order
B)a set (or single sheet of a set)of drawings for a project
C)a document that shows the cut and fill data
D)a document that shows the building location

Question 39

Which of the following views includes cutaway views of major building components?

A)elevation views
B)plan views
C)sectional views
D)none of the above

Question 40

Which control is a backup control designed to operate when other controls fail?

A)high-limit control
B)aquastat
C)pressure relief valve
D)low-water fuel cut-off

Question 41

Which of the following is a special fitting that receives the products of combustion from the appliance and admits dilution air to the stream?

A)single wall chimney
B)single wall vent connector
C)vent connector
D)draft hood

Question 42

A parallel angle is always _____ of the angle of the fitting used.

A)¼
B)⅛
C)⅓
D)½

Question 43

Which of the following is the water drainage pipe located inside the building?

A)area drain
B)conductor
C)building sewer
D)building storm drain

Question 44

If a pipe has to move in two directions at the same time, such as up a wall and across the floor, the movement is considered which of the following?

A)true offset
B)rolling offset
C)advance offset
D)basic offset

Question 45

What is the volume of a cylindrical tank with these dimensions: diameter = 8 feet and length = 16 feet?

A)4,891.65 gallons
B)5,472.16 gallons
C)6,012.72 gallons
D)6,695.99 gallons

Question 46

If a pipeline with a slope of 2% is 618 feet long, what is the total fall?

A)6.18 feet
B)9.27 feet
C)12.36 feet
D)15.45 feet

Question 47

What type of air is supplied through the draft hood and helps to maintain a more constant draft pressure and to lower the temperature of chimney gases?

A)primary air
B)secondary air
C)exhaust air
D)dilution air

Question 48

Which term means the amount of heat that is released when a fuel is completely burned?

A)heating value
B)specific gravity
C)therm
D)BTU

Question 49

Which of the following is the part of the drainage system located outside of the building that conveys storm water or other drainage, but no sewage?

A)building storm sewer
B)roof drain
C)scupper drain
D)foundation drain

Question 50

A 1% slope is the equivalent of approximately how many inches per foot?

A)⅛
B)¼
C)½
D)1

Question 51

The optimum reading for carbon monoxide in the delivered air stream is ___________.

A)less than 10 PPM
B)less than 1 PPM
C)less than .1 PPM
D)zero

Question 52

Which type of burner uses a motor-driven blower to deliver primary and secondary air to the combustion zone?

A)absorption
B)injection
C)luminous
D)power

Question 53

Which type of burner is most often used for small-fired appliances?

A)absorption
B)injection
C)luminous
D)power

Question 54

How much does a gallon of water at average room temperature weigh?

A)6.75 pounds
B)7.48 pounds
C)8.33 pounds
D)9.12 pounds

Question 55

Which of the following results when the blower is arranged to blow air into the combustion chamber?

A)induced draft
B)reduced draft
C)forced draft
D)primary air

Question 56

What is the volume of a rectangular tank with these dimensions: width = 2 feet, height = 4 feet, and length = 6 feet?

A)399.84 gallons
B)359.04 gallons
C)239.36 gallons
D)312.48 gallons

Question 57

____________________ is the measurement of the steepness, incline, or grade of a straight line.

A)Benchmark
B)Height of Instrument
C)Elevation
D)Slope

Question 58

A(n)______________ is an overhead view of a property, drawn to scale, showing the location of buildings, streets, sidewalks, alleys, and easements for utilities.

A)contour plan
B)grade plan
C)site plan
D)elevation plan

Question 59

Which of the following is the diagonal distance that has to be traveled in order to get the required offset?

A)travel
B)constant
C)offset
D)run

Question 60

When an appliance is _____________ vented, fresh air is brought straight to the unit through a pipe that runs from outside the building to the combustion chamber of the appliance.

A)direct
B)power
C)mechanical
D)induced

Question 61

Which of the following describes materials that do not transfer heat well?

A)insulators
B)poor conductors of heat
C)quick conductors of heat
D)none of the above

Question 62

Which of the following backflow protection methods cannot be used on continuous pressure applications?

A)air gap
B)reduced pressure zone backflow preventer
C)atmospheric-type vacuum breaker
D)none of the above

Question 63

In an electric motor, which of the following is the stationary part of the motor?

A)capacitor
B)armature
C)rotor
D)stator

Question 64

_________ backflow is a reversal of normal flow in a system because downstream pressure is greater than the supply pressure.

A)Back-pressure
B)Gravity
C)Back-siphonage
D)Suction

Question 65

___________ backflow is a reversal of normal flow in a system caused by a negative pressure (vacuum)in the potable water supply.

A)Gravity
B)Back-siphonage
C)Back-pressure
D)none of the above

Question 66

Which of the following is a drain that collects subsurface or seepage water and conveys it to a place of disposal?

A)foundation drain
B)subsoil drain
C)scupper drain
D)area drain

Question 67

Red staining of fixtures is a symptom of which type of water problem?

A)turbidity
B)hardness
C)acidity
D)dissolved iron

Question 68

Which type of solar water heater uses a separate loop to transfer solar energy from the collector to a heat exchanger?

A)drainback
B)direct
C)indirect
D)differential

Question 69

The temperature at which moisture in the air will begin to condense is called the ____________.

A)wet-bulb temperature
B)dry-bulb temperature
C)relative humidity
D)dew point

Question 70

Full-ported check valves installed in sewage systems to prevent backflow are called ___________.

A)RPZs
B)atmospheric-type vacuum breakers
C)double-check valve assemblies
D)backwater valves

Question 71

The temperature of the air as read on a standard conventional thermometer is called the ___________.

A)wet-bulb temperature
B)dry-bulb temperature
C)relative humidity
D)dew point

Question 72

Which of the following is required on any building that has parapet walls or any other construction that extends above the roof?

A)controlled-flow systems
B)siphonic roof drains
C)secondary roof drains
D)downspouts

Question 73

Bathtub ring is caused by which of the following water problems?

A)turbidity
B)hardness
C)acidity
D)dissolved iron

Question 74

Which type of heat transfer occurs in a gas-fired water heater tank when the burner is not firing and tends to move hot water toward the top of the tank?

A)conduction
B)convection
C)radiation
D)emissivity

Question 75

What is the term that refers to a temperature spread in a water heater tank that results in the first water out of the tank being too hot to be safe?

A)stacking
B)overheating
C)convection
D)conduction

Question 76

Which type of motor is contained within a gas-tight vessel?

A)hermetic
B)open
C)totally enclosed
D)splash proof

Question 77

A device that is capable of interrupting the flow of electricity in a circuit is a __________.

A)capacitor
B)terminal loop
C)wirenut
D)switch

Question 78

A circuit in which one side of the power source is referenced to ground is called ___________.

A)incomplete
B)polarized
C)damaged
D)arced

Question 79

Water heater efficiency is rated by the ____________________, a percentage of how much of the purchased fuel energy is converted into usable hot water.

A)BTU
B)HSPF
C)energy factor
D)therm

Question 80

Most dishwashers have a(n)____ as an internal backflow device to protect the potable water supply.

A)air gap
B)reduced pressure zone backflow preventer
C)pressure-type vacuum breaker
D)high loop vacuum breaker