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Construction Inspector First Test > Final test > Flashcards

Final test Flashcards

(89 cards)

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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
Most common sewage pump
Centrifugal
26
Plastic / PVC pipe weighs how much less than metal pipe
One half to one sixth the weight
27
What is a circuit in plumbing
Group of fixtures that connects back to main vent
28
Max amount of fixtures that can connect to a horizontal branch drain
8
29
What is the purpose of an interceptor
Installed in sanitary drain system to trap or intercept Grease / sand
30
Air test is for how long
5psi for 15 mins
31
Auto fire detectors must conform to what
Applicable provisions of NFPA 72
32
Auto fire detector must be arranged how
To alert building occupants and transmit signal to constantly attended location Must not rely on any other system Must be stand alone
33
Ionization types of smoke detectors
Dual chamber design Indicator lamp Correct voltage / current
34
For Auto sprinklers you must check for what
Loose or bent deflectors or bent frames
35
Auto sprinklers solder must withstand what temp
50° above normal room temp
36
How much clearance must be under auto sprinklers
18"
37
What is the purpose of a refrigerated system
Process of removing heat from an area or substance
38
How does a condenser work
Removes and dissipates heat from compressed vapor to the surrounding air or water to condense refrigerant vapor to liquid
39
Three types of condensers
Air-cooled, water cooled, and evaporative
40
What does the auto expansion valve do
Maintains constant pressure in evaporator
41
What acts as a throttle on refrigerant and is a long tube with a small diameter and feeds to the evaporator
Capillary tube
42
Three ideal characteristics of refrigerant
Thermodynamic properties safe unreactive chemicals
43
What is air change load
How often and how long doors are open
44
Heat transmission load
Occurs through walls doors ceilings floor
45
What is used for pressure test
Dry nitrogen
46
True or false receivers can be in direct sun
False
47
Purpose of air conditioning system
Process of conditioning air in a space to maintain a predetermined temperature
48
What is included in self-contained air conditioning unit
Compressor condenser evaporator controls and casing
49
Three types of cooling towers
Natural draft induced draft force draft
50
Three types of compressors
Reciprocating rotary centrifugal - large refrigerators and air conditioning
51
Forms of heat energy
Fuel coal oil gas
52
What is sensible heat
Measured by thermometer or sensed or felt
53
What is latent heat
To change state of substance such as ice to water
54
What are the two types of air distribution
Trunk/branch duct Individual duct
55
What are the classifications of low temp, hot water distro systems
1 pipe open -gravity system 2 pipe open - gravity system 1 pipe closed - forced circulation 2 pipe closed - forced circulation
56
Oil storage tanks must be _____ approved
UL
57
True or false all tests have to be recorded
True
58
True or false Hot water systems must be balanced
True
59
What is the purpose of air handling and distribution systems
Designed to distribute air in proper space by proper amount
60
Two types of fans
Axial Flow and radial flow
61
What is an axial flow fan
Has a propeller and air flows and direction the axle is pointing
62
What is a radial flow fan
Has a centrifugal flow air flows at right angles to axle
63
Ductwork materials
Sheet metal or other types of construction
64
Purpose of ductwork
Carries air to condition space
65
Two types of ductwork systems
High pressure or high velocity low pressure or low velocity
66
Ductwork material thickness depends on what
Pressure length and cross-sectional area of duct
67
High temp systems such as kitchen exhaust uses what kind of material
Black steel
68
Partially saturated air uses what material
Aluminum
69
Completely saturated air uses what material
Copper
70
Purpose of dampers
Controls air flirt and distributes air throughout space
71
Types of dampers
Multiblade - shits off or limits air butterfly - airflow control common in round ducts split - splits air in 2 directions
72
How often are fire dampers inspected
Annually
73
Three types of fire ratings
A b and c
74
Four types of filters
Stranded throwaway adhesive carbon electronic air cleaner
75
Pulleys and belts must be what
Aligned
76
Rust spots and ducks must be what
Cleaned and repainted
77
Power roof ventilators discharge error must be what
Not directed at intakes
78
Ductwork of 24 in or bigger has supports how often
Every 4 ft
79
How much air should be put into a building basic rule
4 ft³ per minute of fresh air per person
80
What test must be completed before insulating ducts
Airtight test
81
2-in drain test must be completed how often
Quarterly
82
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
12"
83
This type of sewer connects two or more branches
Maine sewer
84
This pump is the most common and transport liquids by The conversion of rotational kinetic energy to the hydronamic energy of the fluid flow
Centrifugal pump
85
Circuit vents can have no more than how many fixtures connected to branchdrain
8
86
When inspecting photoelectric smoke detectors you must look for what
Source lamp or LED of specified voltage
87
Vent that extends above highest fixture branch and our principal artery of the vent system
Main vent
88
What test is used when the plumbing system is filled with water to check for tightness
Water test / hydrostatic test
89
Cooling tower with a top mounted fan which causes air to move up through the tower as warm water falls downward
Induced draft

Construction Inspector First Test (5 decks)

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