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Construction Inspector First Test > Final test > Flashcards

Final test Flashcards

1
Q

What is a water Service

A

From water main to building or structure

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2
Q

Plastic pipe cones in what types

A

Schedule 40 and 80

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3
Q

What is a gate valve

A

Either on or off

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4
Q

Globe valve

A

Can be throttled to control flow. Has arrow that points down stream

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5
Q

What is Check valve

A

Permits flow in one direction
prevents backflow

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6
Q

Pressure reducing valve

A

Reduces or increases pressure

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7
Q

What is a union

A

Dielectric “prevents corrosion of similar metals

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8
Q

What is cathodic protection

A

Impressed currents, rectified AC to DC
Graphite, iron, zinc

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9
Q

Separation of pipe distance

A

Parallel 5’
Crossing 12”

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10
Q

Can plastic pipes pass through fire rated walls

A

No

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11
Q

What shoukd pipes in mech rooms have

A

Sleeves

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12
Q

Blwhere are blow out toilets used

A

Health-care facilities

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13
Q

ADA stand for

A

American disabilities act

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14
Q

Another name for urinals

A

DFU
Drainage fixture unit

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15
Q

Most common type of urinal

A

Wash out type

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16
Q

Which type of urinal has removable cartridge

A

Waterless

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17
Q

Right-hand/left-hand regarding bathtubs means what

A

Drain as you face it
Left hand drain on left

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18
Q

When inspecting fixtures what’s one thing to look for

A

Fixtures should operate quietly

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19
Q

Sanitary system purpose

A

Removes domestic waste excluding raw / surface water
Transfers from source to treatment plant

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20
Q

Below ground sewer slope

A

1/4” per 1’

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21
Q

Baterboards spacing for below ground sewer

A

25’-50’

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22
Q

Rotary pumps are classified by what
4 types

A

The type of rotating element it has
Screw
Gear
Love
Veneal

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23
Q

Where are reciprocating pumps used

A

Used where precise amount of liquid is on other end required to be delivered and where delivery pressure is higher

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24
Q

3 types of reciprocating pumps

A

Piston
Plunger
Diaphragm

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25
Q

Most common sewage pump

A

Centrifugal

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26
Q

Plastic / PVC pipe weighs how much less than metal pipe

A

One half to one sixth the weight

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27
Q

What is a circuit in plumbing

A

Group of fixtures that connects back to main vent

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28
Q

Max amount of fixtures that can connect to a horizontal branch drain

A

8

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29
Q

What is the purpose of an interceptor

A

Installed in sanitary drain system to trap or intercept

Grease / sand

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30
Q

Air test is for how long

A

5psi for 15 mins

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31
Q

Auto fire detectors must conform to what

A

Applicable provisions of NFPA 72

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32
Q

Auto fire detector must be arranged how

A

To alert building occupants and transmit signal to constantly attended location
Must not rely on any other system
Must be stand alone

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33
Q

Ionization types of smoke detectors

A

Dual chamber design
Indicator lamp
Correct voltage / current

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34
Q

For Auto sprinklers you must check for what

A

Loose or bent deflectors or bent frames

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35
Q

Auto sprinklers solder must withstand what temp

A

50° above normal room temp

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36
Q

How much clearance must be under auto sprinklers

A

18”

37
Q

What is the purpose of a refrigerated system

A

Process of removing heat from an area or substance

38
Q

How does a condenser work

A

Removes and dissipates heat from compressed vapor to the surrounding air or water to condense refrigerant vapor to liquid

39
Q

Three types of condensers

A

Air-cooled, water cooled, and evaporative

40
Q

What does the auto expansion valve do

A

Maintains constant pressure in evaporator

41
Q

What acts as a throttle on refrigerant and is a long tube with a small diameter and feeds to the evaporator

A

Capillary tube

42
Q

Three ideal characteristics of refrigerant

A

Thermodynamic properties
safe
unreactive chemicals

43
Q

What is air change load

A

How often and how long doors are open

44
Q

Heat transmission load

A

Occurs through walls doors ceilings floor

45
Q

What is used for pressure test

A

Dry nitrogen

46
Q

True or false receivers can be in direct sun

A

False

47
Q

Purpose of air conditioning system

A

Process of conditioning air in a space to maintain a predetermined temperature

48
Q

What is included in self-contained air conditioning unit

A

Compressor condenser evaporator controls and casing

49
Q

Three types of cooling towers

A

Natural draft
induced draft
force draft

50
Q

Three types of compressors

A

Reciprocating
rotary
centrifugal - large refrigerators and air conditioning

51
Q

Forms of heat energy

A

Fuel coal oil gas

52
Q

What is sensible heat

A

Measured by thermometer or sensed or felt

53
Q

What is latent heat

A

To change state of substance such as ice to water

54
Q

What are the two types of air distribution

A

Trunk/branch duct
Individual duct

55
Q

What are the classifications of low temp, hot water distro systems

A

1 pipe open -gravity system
2 pipe open - gravity system
1 pipe closed - forced circulation
2 pipe closed - forced circulation

56
Q

Oil storage tanks must be _____ approved

A

UL

57
Q

True or false all tests have to be recorded

A

True

58
Q

True or false Hot water systems must be balanced

A

True

59
Q

What is the purpose of air handling and distribution systems

A

Designed to distribute air in proper space by proper amount

60
Q

Two types of fans

A

Axial Flow and radial flow

61
Q

What is an axial flow fan

A

Has a propeller and air flows and direction the axle is pointing

62
Q

What is a radial flow fan

A

Has a centrifugal flow air flows at right angles to axle

63
Q

Ductwork materials

A

Sheet metal or other types of construction

64
Q

Purpose of ductwork

A

Carries air to condition space

65
Q

Two types of ductwork systems

A

High pressure or high velocity
low pressure or low velocity

66
Q

Ductwork material thickness depends on what

A

Pressure length and cross-sectional area of duct

67
Q

High temp systems such as kitchen exhaust uses what kind of material

A

Black steel

68
Q

Partially saturated air uses what material

A

Aluminum

69
Q

Completely saturated air uses what material

A

Copper

70
Q

Purpose of dampers

A

Controls air flirt and distributes air throughout space

71
Q

Types of dampers

A

Multiblade - shits off or limits air
butterfly - airflow control common in round ducts
split - splits air in 2 directions

72
Q

How often are fire dampers inspected

A

Annually

73
Q

Three types of fire ratings

A

A b and c

74
Q

Four types of filters

A

Stranded throwaway
adhesive
carbon
electronic air cleaner

75
Q

Pulleys and belts must be what

A

Aligned

76
Q

Rust spots and ducks must be what

A

Cleaned and repainted

77
Q

Power roof ventilators discharge error must be what

A

Not directed at intakes

78
Q

Ductwork of 24 in or bigger has supports how often

A

Every 4 ft

79
Q

How much air should be put into a building basic rule

A

4 ft³ per minute of fresh air per person

80
Q

What test must be completed before insulating ducts

A

Airtight test

81
Q

2-in drain test must be completed how often

A

Quarterly

82
Q

The bottom of a water service pipe within 5 ft of a sewer shall be ______inches above highest the top of the highest point of sewer pipe

A

12”

83
Q

This type of sewer connects two or more branches

A

Maine sewer

84
Q

This pump is the most common and transport liquids by The conversion of rotational kinetic energy to the hydronamic energy of the fluid flow

A

Centrifugal pump

85
Q

Circuit vents can have no more than how many fixtures connected to branchdrain

A

8

86
Q

When inspecting photoelectric smoke detectors you must look for what

A

Source lamp or LED of specified voltage

87
Q

Vent that extends above highest fixture branch and our principal artery of the vent system

A

Main vent

88
Q

What test is used when the plumbing system is filled with water to check for tightness

A

Water test / hydrostatic test

89
Q

Cooling tower with a top mounted fan which causes air to move up through the tower as warm water falls downward

A

Induced draft

Construction Inspector First Test (5 decks)

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