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NICET Level 2 ITM Water based systems > Other General Questions > Flashcards

Other General Questions Flashcards

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1
Q

When testing a antifreeze solutions, what tools are recommended?

A

Refractometer, or hyrdometer

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2
Q

Quick opening devices must be tested every _____ yrs

A

1

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3
Q

An air compressor with less than _____ cubic feet per minute at 10 PSI does not require an air maintenance device

A

5.5

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4
Q

Fast response sprinklers in service for _____ yrs shall be replaced or tested.

A

20

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5
Q

Retesting of fast response sprinklers shall occur in ____ yr intervals

A

10

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6
Q

What time shall be recorded during a main drain test?

A

Time for pressure to return to normal at the end of the test when closing the main drain valve

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7
Q

The minimum number of antifreeze samples to be tested?

A

2

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8
Q

A building has 630 sprinklers, how many should be tested?

A

7

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9
Q

Systems installed prior to Sept 30 2012, listed antifreeze solutions are not required until Sept 30 _____.

A

2022

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10
Q

The concentration of antifreeze solution is limited to _____ % glycerin by volume.

A

50

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11
Q

The concentration of antifreeze solution is limited to ____ % propylene glycol

A

40

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12
Q

Sprinklers installed prior to ____ shall be replaced.

A

1920

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13
Q

Criteria to not be considered in selection of sprinklers to be tested

A

Ease of access

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14
Q

When one sprinkler fails testing ____ % of represented sprinklers must be replaced

A

100

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15
Q

Devices that can be used to test antifreeze solutions?

A

Refractometer, and hydrometer

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16
Q

The supply valve is not opened to full flow would cause what?

A

A large drop in full flow pressure to be observed during a main drain test

17
Q

An obstruction in the system would cause what?

A

A large drop in full flow pressure to be observed during a main drain test

18
Q

The sole water source is through a backflow preventer, a main drain test shall be conducted at what interval?

A

Quarterly

19
Q

True or False.
Only factory-premixed solutions are permitted

A

True

20
Q

Sprinklers that have been in service for ____ yrs shall be replaced or tested.

A

50

21
Q

Freezing point of solutions in antifreeze shall be tested _____

A

Annually

22
Q

What is the correct position of valves to begin a main drain test.

A

Alarm control valve closed

Main drain valve open

23
Q

Two main reason to perform a main drain test

A

Verify water supply pressure is similar to original or previous tests

Ensure the system control valve has been fully opened after annual testing.

24
Q

When a ____ % reduction in full flow pressure is observed compared to the original acceptance test or previously performed tests, the cause of the reduction shall be identified and corrected.

A

10

25
Q

When antifreeze systems have a capacity larger than 150 gallons, tests at one additional point shall be conducted for every ____ gallons shall be made

A

100

26
Q

The lead in to a building supplies a header or manifold serving 4 systems, how many main drain tests are required?

A

1

27
Q

After testing sprinklers the first time, testing shall be repeated every ____ yrs

A

10

28
Q

Listed CPVC sprinkler systems shall be protected from freezing with ____ only

A

Glycerin

29
Q

Testing a valve supervisory s/w, a signal shall indicate movement from the control valves normal position during either the first ____ revolutions or when the stem has moved 1/5th of the distance from its normal position

A

2

30
Q

Control valve supervisory s/w shall be tested _____

A

Annually

31
Q

Mechanical waterflow alarm devices shall be tested _____

A

Quarterly

32
Q

A semi-auto dry standpipe without a backflow preventer shall have a main drain test _____

A

Annually

33
Q

System demand for class 2 standpipes shall be based on _____

A

standards at the time of installation

34
Q

Air pressure supervision at a constantly manned location, gauges are inspected _____

A

Quarterly

35
Q

When water damage is a concern, performing an air test at _____ PSI is recommended before putting water on the system

A

25

36
Q

A pressure loss of 5 PSI is acceptable during a 5 yr hydrostatic test.

A

False

37
Q

During an obstruction investigation of a sprinkler system, _____ cups of scale can be flushed from the cross mains without requiring an internal inspection.

A

1/2 cups of scale

NICET Level 2 ITM Water based systems (12 decks)

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