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UT QUIZ - UT1 > QUIZ 1 > Flashcards

QUIZ 1 Flashcards

1
Q

The Facilities Planning Guide has two
volumes, each with three parts. You
can locate plot plans for components
in

A

Volume 1, Part 1

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2
Q

The portable bath unit operates on

what voltage?

A

208 V

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3
Q

When a solution of sodium
hexamethphosate is added to the
ROWPU, it prevents what condition
from occurring in the filters?

A

Scaling

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4
Q

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

A

50

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5
Q

You should install which of the
following components to protect the
water from contamination?

A

Backflow preventer

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6
Q

Scouring and damage to the pipe may
happen when wastewater moves more
than how many feet per second?

A

8

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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”

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8
Q

The amount of water being discharged
from a plumbing fixture per minute is
measured in fixture units. How many
gallons equal one fixture unit?

A

7 1/2

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9
Q

What device controls the amperage in
an alternating-current circuit to thaw a
frozen pipe?

A

Transformer

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10
Q

What type of automatic sprinkler system

should you use in an aircraft hangar?

A

Water-deluge

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11
Q

When debris in the water is a problem, you

should use what type of dry-pipe valve?

A

Low differential

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12
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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13
Q

When warming up a diesel engine, you
should allow how much time for the
lube oil pressure gauge to show
enough positive pressure?

A

30 seconds

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14
Q

Which of the following instruments
should you use to check alignment of
the shaft in a centrifugal pump?

A

A dial indicator

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15
Q

Air-lift pumps are used for which of

the following pumping applications?

A

Wells

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16
Q

Cooling towers are classified as

natural draft, induced draft, or

A

forced draft

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17
Q

The oil level in the compressor of an
air-conditioning system should be
checked

A

Weekly

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18
Q

What two chemicals form a hard scale
on the walls of water tubes that reduce
their efficiency?

A

Lime and iron

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19
Q 
When using two compressors and the
condensers are more than 10 feet
above the compressors, you should
install what additional component in
the horizontal discharge line?
A

Oil seperator

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20
Q

Which of the following factors is not
an advantage of a hermetically sealed
compressor?

A

Increased working capacity

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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

An external equilizer line is required when
what pressure drop exists across an
evaporator coil?

A

7 pounds

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23
Q

When working on an ammonia-absorption
refrigeration system, you need what type of
manifold gauges?

A

Steel

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24
Q

Of the following considerations, which one is
most important when you are mounting a
condenser on a roof?

A

The roof load strength

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25
Q

Horizontal lines in an isometric

drawing are projected at what angles?

A

60° and 30°

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26
Q

What color code indicates flammable

material?

A

Yellow

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27
Q

Electrical thawing has what primary

advantage over steam thawing?

A

It is faster

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28
Q

When drawing a working sketch, you should

perform what step first?

A

Draw the symbols used for components

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29
Q

What document is used to present notes and

information in tabular form?

A

A schedule

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30
Q

What type of line is used to show the center of

a line or fitting?

A

Center

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31
Q

What type of fusible plug can be
replaced without taking the boiler out
of service?

A

Steam actuated

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32
Q

The blowdown pipe of a vertical firetube

boiler is attached to the

A

lowest part of the water leg

33
Q

When a steam injector is started, the

water supply valve should be turned

A

a full turn

34
Q

On a steam boiler, the head
mechanism of the low water cutoff
devices should be removed from the
bowl for cleaning at least once a

A

Month

35
Q

Which of the following methods
should you use to test the safety valves
after completing a hydrostatic test on a
boiler?

A

Steam pressure

36
Q

What temperature is required to bake

out plastic refractory?

A

2900°F to 3000°F

37
Q

As a minimum, high-pressure, HTW, and
MUSE boilers require a hydrostatic test at
what intervals, in years?

A

3

38
Q

Improper fabrication of tubes is most likely to

result in which of the following conditions?

A

Wall lamination

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 weight of pipe is adequate for

most Navy base construction?

A

SV

41
Q

When you solvent weld PVC pipe, the
surrounding air should NOT be above
what temperature?

A

90°F

42
Q

Which of the following types of 90-
degree Y-branches can be used as an
individual vent?

A

Double

43
Q

In a properly ground-in valve, the
contact area should cover
approximately what fraction of the
seating surface?

A

One third

44
Q

When a straight-reading dial on a
water meter reads 000782, you should
record the reading in what manner?

A

00000782

45
Q

Vertical fixture risers must be
supported at a change of direction and
at

A

each floor level

46
Q

Spray nozzle aerators should have

nozzles removed at what intervals?

A

Only as necessary

47
Q

How often should the exterior shell of
the ion-exchange unit be cleaned and
painted?

A

Annually

48
Q

A pot type of solution feeder sediment
trap should be cleaned at which of the
following times?

A

Monthly

49
Q

Clearing water of foreign suspended
matter by a natural settling process is
known as

A

Sedimentation

50
Q

Chlorinators may be classified by

what two types of feed?

A

Solution and direct

51
Q

What process comes first and last in

making water safer for consumption?

A

Chlorination

52
Q

When developed properly, springs yielding a
minimum of how many gallons per minute can
be used as a source of field water?

A

20

53
Q

At what level of government is the title to
ground and surface water normally regulated
within the United States?

A

State

54
Q

A well can normally be bored within what

maximum depth without fear of a cave-in?

A

60 feet

55
Q

What department is responsible for
conducting sanitary inspections of the
galley?

A

Medical

56
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

57
Q

When the air-oil mixture of a range is
correct, the flame should be what
color?

A

Blue

58
Q

When operating an HTHW system,
you should ensure the water is within
what pH range?

A

9.3 to 9.9

59
Q

The amount of heat added to a
substance above its boiling point is the
definition of what term?

A

Superheat

60
Q

You should use what size and type of
tubing from the oil tank or valve to the
burner?

A

1/2-inch seamless steel

61
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

62
Q

What component of the float
thermostatic trap activates the
discharge valve?

A

Bellows

63
Q

What are the two types of major
underground steam distribution
systems?

A

Utilidor and conduit

64
Q

What is the normal color of wastewater

containing dissolved oxygen?

A

Gray

65
Q

An Imhoff cone should be used to perform

which of the following tests?

A

Activated sludge

66
Q

A COD test can be performed in a minimum of

how many hours?

A

1

67
Q

Copper pipe is advantageous as a hot-water

supply line for which of the following reasons?

A

It resists corrosion

68
Q

A stop and waste valve is used for what

purpose?

A

To drain the building water system

69
Q

Which of the following types of pipe is most

susceptible to microbiological corrosive action?

A

Steel

70
Q

Air compressor filter systems should be able to

remove particles in what micron size range?

A

1 to 3

71
Q

Of the following types of intake filters, which
one(s) is/are best suited for use in locations
where dust is prevalent in the atmosphere?

A

Oil bath only

72
Q

Air filters should be checked and cleaned a

minimum of how often?

A

Monthly

73
Q

When computing duct size, you should first

perform what calculation?

A

Air volume

74
Q

You can gain efficiency by installing what

type of elbow in a duct system?

A

Long, sweeping

75
Q

In a low-velocity system, the duct velocity is

normally less than how many feet per minute?

A

2,000

76
Q

What is the percentage of transmissivity for

standard plate glass?

A

86%

77
Q

During what hours of the day does most of

the useful energy collection take place?

A

0900 to 1500

78
Q

Which of the following types of collectors uses
a vacuum between the absorber and the glass
outer tube to reduce convection and
conduction heat losses?

A

Evacuated tube

UT QUIZ - UT1 (3 decks)

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