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UT QUIZ - UT1 > QUIZ 2 > Flashcards

QUIZ 2 Flashcards

1
Q

The mixing valve assembly provides
heated water to the shower heads at
what temperature?

A

105°F

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2
Q

What percentage of the effluent from a
septic tank is composed of suspended
solids?

A

40% to 60%

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3
Q

The shower stand should be erected at

what distance from the mixing valve?

A

20 feet

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4
Q

The working load on a medium-duty
scaffold must not exceed how many
pounds per square foot of platform
surface?

A

50

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5
Q

The tap is normally in what location on

a water main?

A

Top

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6
Q

A hydrant should be located
approximately how many feet from a
building?

A

50

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7
Q

When a wall-mounted urinal is
installed, the distance between the
floor and the lip of the urinal should
not exceed

A

25 inches

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8
Q

What term describes the plumbing
receptacles into which wastes are put
before being discharged into the
sewer?

A

Fixtures

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9
Q

What type seal is commonly used
between a water closet bowl and a
water closet flange?

A

Preformed sealing ring

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10
Q

In a differential dry-pipe valve system, the air
must be maintained at least how many psi
greater than the trip pressure?

A

20

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11
Q

All automatic sprinkler systems have which of
the following characteristics in common?

  • Water supply
  • Piping network
  • Sprinklers
  • Each of the above
A

Each of the above

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12
Q

When performing a deluge valve dry trip-test in
a flammable area, you should use what test in
place of the electric test set?

A

Hot water or hot cloth

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13
Q

On what stroke of a gasoline engine is

air admitted to the engine?

A

Intake

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14
Q

The liquid in a diaphragm is made to

move by what kind of motion?

A

Reciprocating

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15
Q

By what means are mechanical seals

positioned on the shaft?

A

Stub or step sleeves

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16
Q

The function of what component of a
duct system is designed to deliver a
concentrated air stream into a room?

A

Register

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17
Q 
Standard air-conditioning certification
is divided into levels corresponding to
the type of service a technician
performs. How many types of
technician certification are there?
A

Three

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18
Q

Cooling towers are classified as

natural draft, induced draft, or

A

Forced draft

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19
Q

What type of heat is absorbed or given
off when the physical state of a
substance is changing?

A

Latent

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20
Q

A total of how many Btu is required to
raise 5 pounds of water from 40°F to
165°F?

A

625

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21
Q

What type of condenser is used where
low-quality water and its disposal
make the use of circulating watercooled
types impractical?

A

Evaporative

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22
Q

Which of the following types of motors should
be used for a 5-horsepower, high-starting
torque requirement?

A

Capacitor-start, capacitor-run

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23
Q

When you want to preserve the freshness of
fruits and vegetables, you should use what
type of evaporator system?

A

Spray

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24
Q

Which of the following electrical components
is NOT part of a load circuit shown in a
hermetic system schematic wiring diagram?

A

Thermostat

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25
Q

You are installing warning signs for a
new water treatment plant.
Specifications for the signs are
covered in what division?

A

Specialties

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26
Q

The air-lift pump can deliver large

quantities of water at

A

relatively low pressures

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27
Q

Horizontal lines in an isometric

drawing are projected at what angles?

A

60° and 30°

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28
Q

When maintenance on a structure requires a
change to the record drawing, you should pass
this information to which of the following
departments?

A

Operations or maintenance control

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29
Q

As a supervisor, you should refer to what
documents as the chief source(s) of
information during a construction project?

  • Construction drawings
  • Project specifications
  • Bill of materials
  • Each of the above
A

Each of the above

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30
Q

To determine the point where service taps
should be connected, you should use which of
the following plans?

A

Plot

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31
Q

What value must increase when you
want to increase the boiling point of
water?

A

Pressure

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32
Q

Which of the following factors is a
disadvantage of the vertical fire-tube
boiler?

A

It has a limited capacity

33
Q

What device allows the boiler operator
to determine the water level in the
boiler?

A

Gauge glass

34
Q

At what time intervals should you
check the boiler settings for external
air leaks?

A

Every 24 hours

35
Q

What precaution should you take
before making a hydrostatic test of a
boiler?

A

Gag the safety valves

36
Q

Before a boiler is lighted off, which of

the following valves must be opened?

A

Feedwater stop and check

37
Q

The pressure gauge on a boiler should be

tested at what intervals?

A

Semiannually

38
Q

The continuous blowdown should be regulated
to maintain what ppm of TDS in a steaming
boiler?

A

3,000 to 4,000

39
Q

When testing the functions of automatically or
manually controlled devices that interfere with
steam distribution, you should ensure that
which of the following main distribution valves
is/are closed?

A

Main steam

40
Q

What portion of the venting system
extends above the highest fixture
branch?

A

The main soil and waste vent

41
Q

A long-hubbed fitting used for
insertion into an existing line is called
a/an

A

sisson

42
Q

A measurement was taken from the end
of a pipe to the center of a fitting.
What type of measurement was used?

A

End to center

43
Q

What are the two types of duct

insulation?

A

Inside and outside

44
Q

A valve is installed in the most
desirable position when the valve stem
is pointing in what direction?

A

Straight up

45
Q

Which of the following items should
you use to air test a waterline, for
leaks?

A

A soapy water solution

46
Q

How should in-stock diaphragms be

stored?

A

Underwater

47
Q

The blower should be inspected for
internal corrosion or deterioration at
what intervals?

A

Annually

48
Q 
To remove organic growth from the
watersides of the removable plates of a
porous ceramic diffuser, you should
use a 50-percent solution of what type
of acid?
A

Nitric

49
Q

What type of solution is used to detect

a chlorine leak?

A

Soapy

50
Q

What type of waterborne disease

requires a carrier to infect people?

A

Schistosomiasis

51
Q

What condition must be present for
groundwater to constitute a water
table?

A

Stabilized

52
Q

There is a total of how many classifications of

wells?

A

5

53
Q

For a normal field water supply, what type of

water source is the most accessible?

A

Surface

54
Q

The pump and power unit used for testing a
well should be capable of continuous operation
for a minimum of how many hours?

A

24

55
Q

You should use what type of solvent
to remove rust from a domestic
dishwasher?

A

Air-inhibited sulfamic acid

56
Q

If a heating coil is restricted, the
condition will be shown by which of
the following readings?

A

30 psi or greater above normal

57
Q 
After filling a domestic dishwasher
with hot water and an approved
cleaning solution, you should then
operate the machine at high
temperature for what length of time?
A

30 minutes

58
Q

Natural gas has which of the following

characteristics?

A

It is odorless and colorless

59
Q

On what two factors does the
operation of the draft regulator
depend?

A

Balance and free action

60
Q

Sensible heat plus latent heat equals

what type of heat?

A

Total

61
Q

A thermodynamic trap is usually
constructed from what type of
material?

A

Stainless steel

62
Q 
In the two-pipe vapor distribution
system, what component returns the
condensate to the boiler and maintains
the vacuum or subatmospheric
pressure in the return system?
A

Vacuum pump

63
Q

The hermetically sealed bellows of an
air vent contains a volatile liquid that
has a boiling point that is how much
lower than that of water?

A

10°F

64
Q

What is the normal color of wastewater

containing dissolved oxygen?

A

Gray

65
Q

Which of the following tests should be used as
a control test to help you decide whether to
increase or decrease the rate of sludge return?

A

MLSS

66
Q

When decay proceeds under anaerobic
conditions, what is the ultimate result?

  • Offensive odors
  • Unsightly appearances
  • Offensive conditions
  • Each of the above
A

Each of the above

67
Q

Rainwater is generally considered an electrolyte

because it contains

A

Dissolved atmospheric gases

68
Q

What person is responsible for communicating
requirements to other companies and
departments?

A

The supervisor

69
Q

Which of the following coatings is best suited
for use as a corrosion inhibitor on exposed
steel pipelines suspended along piers?

A

Coal tar

70
Q

When testing e system with dry air or
nitrogen, you should use what percentage of
maximum working pressure for a minimum of
4 hours?

A

75%

71
Q

A refrigerant dryer with a dew point at what
maximum temperature should be used to
remove moisture to meet air quality
requirements for instrument and control air?

A

30°F

72
Q

High-pressure systems provide compressed air

within what pressure range?

A

400 psig to 6,000 psig

73
Q

What type of joint is used to absorb expansion

and contraction in a duct system?

A

Fabric

74
Q

What factors influence the performance
of a fan in a ventilation system?

  • Static pressure and rpm of the fan
  • Voltage and amperage of the fan motor
  • Total airflow in the ventilation system
  • Each of the above
A

Each of the above

75
Q

The type of material used for duct lining and

covering must have what characteristic?

A

It must be noncombustible

76
Q

Energy from the sun is received by the earth

in what form?

A

Radiation

77
Q

What substance is added to water to make

it a useful collector fluid?

A

Ethylene glycol

78
Q

What is the most commonly used substance

for collector covers?

A

Glass

UT QUIZ - UT1 (3 decks)

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