Other General Questions

Question 1

When testing a antifreeze solutions, what tools are recommended?

Answer 1

Refractometer, or hyrdometer

Question 2

Quick opening devices must be tested every _____ yrs

Answer 2

1

Question 3

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

Answer 3

5.5

Question 4

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

Answer 4

20

Question 5

Retesting of fast response sprinklers shall occur in ____ yr intervals

Answer 5

10

Question 6

What time shall be recorded during a main drain test?

Answer 6

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

Question 7

The minimum number of antifreeze samples to be tested?

Answer 7

2

Question 8

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

Answer 8

7

Question 9

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

Answer 9

2022

Question 10

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

Answer 10

50

Question 11

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

Answer 11

40

Question 12

Sprinklers installed prior to ____ shall be replaced.

Answer 12

1920

Question 13

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

Answer 13

Ease of access

Question 14

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

Answer 14

100

Question 15

Devices that can be used to test antifreeze solutions?

Answer 15

Refractometer, and hydrometer

Question 16

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

Answer 16

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

Question 17

An obstruction in the system would cause what?

Answer 17

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

Question 18

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

Answer 18

Quarterly

Question 19

True or False.
Only factory-premixed solutions are permitted

Answer 19

True

Question 20

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

Answer 20

50

Question 21

Freezing point of solutions in antifreeze shall be tested _____

Answer 21

Annually

Question 22

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

Answer 22

Alarm control valve closed

Main drain valve open

Question 23

Two main reason to perform a main drain test

Answer 23

Verify water supply pressure is similar to original or previous tests

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

Question 24

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.

Answer 24

10

Question 25

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

Answer 25

100

Question 26

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

Answer 26

1

Question 27

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

Answer 27

10

Question 28

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

Answer 28

Glycerin

Question 29

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

Answer 29

2

Question 30

Control valve supervisory s/w shall be tested _____

Answer 30

Annually

Question 31

Mechanical waterflow alarm devices shall be tested _____

Answer 31

Quarterly

Question 32

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

Answer 32

Annually

Question 33

System demand for class 2 standpipes shall be based on _____

Answer 33

standards at the time of installation

Question 34

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

Answer 34

Quarterly

Question 35

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

Answer 35

25

Question 36

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

Answer 36

False

Question 37

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

Answer 37

1/2 cups of scale