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What is the maximum floor area that can be protected by a single ordinary hazard sprinkler system?
What is the maximum floor area that can be protected by a single ordinary hazard sprinkler system?A . 25,000 ft2 (2,320 m2)B . 40,000 ft2 (3,720 m2)C . 52,000 ft2 (4,830 m2)D . 70,000 ft2 (6,503 m2)View AnswerAnswer: C Explanation: The maximum floor area on any one floor to be...
Extra high temperature sprinklers should be tested every
Extra high temperature sprinklers should be tested everyA . 5 years.B . 10 years.C . 15 years.D . 20 years.View AnswerAnswer: A Explanation: Extra-high, very extra-high, or ultra-high temperature, solder-type fire sprinklers exposed to very hot environments―test every 5 years Some fire sprinkler environments, like industrial facilities, are extremely hot,...
What is the thrust force on an 8 in. (205 mm) ductile iron 90° bend with a water test pressure of 200 psi (13.8 bar)?
What is the thrust force on an 8 in. (205 mm) ductile iron 90° bend with a water test pressure of 200 psi (13.8 bar)?A . 5,288 lb (2,400 kg)B . 9,097 lb (4,126 kg)C . 13,685 lb (6,207 kg)D . 18,194 lb (8,253 kg)View AnswerAnswer: A Explanation: The thrust...
If a jockey pump start point is set at 165 psi (11.4 bar), the jockey pump stop point should be not less than
If a jockey pump start point is set at 165 psi (11.4 bar), the jockey pump stop point should be not less thanA . 130 psi (8.96 bar).B . 153 psi (10.55 bar).C . 175 psi (12.06 bar).D . 188 psi (12.96 bar).View AnswerAnswer: C Explanation: The jockey pump stop...
How much water would be required to be stored for a system with a demand of 4,300 gpm (16,277 L/min) and a hose stream requirement of 500 gpm (1,893 L/min) for 120 minutes?
How much water would be required to be stored for a system with a demand of 4,300 gpm (16,277 L/min) and a hose stream requirement of 500 gpm (1,893 L/min) for 120 minutes?A . 64,300 gal (243,402 L)B . 103,000 gal (389,897 L)C . 318,000 gal (1,203,761 L)D . 576,000...
For an existing antifreeze system without a backflow prevention device, what size hole is required in the check valve separating the supply and the antifreeze?
For an existing antifreeze system without a backflow prevention device, what size hole is required in the check valve separating the supply and the antifreeze?A . 1/32 in. (0.79 mm)B . 1/16 in. (1.59 mm)C . 1/8 in. (3.17 mm)D . 1/4 in. (6.35 mm)View AnswerAnswer: A Explanation: If sprinklers...
What is the equivalent length of a 45° elbow of 6 in (150 mm) Schedule 10 pipe?
What is the equivalent length of a 45° elbow of 6 in (150 mm) Schedule 10 pipe?A . 8.8 ft (2.7 m)B . 9.8 ft (3.0 m)C . 11.8 ft (3.6 m)D . 12.8 ft (3.9 m)View AnswerAnswer: C Explanation: The equivalent length of a 45° elbow for 6 in...
A paddle-type water flow alarm indicator shall be installed only in
A paddle-type water flow alarm indicator shall be installed only inA . dry systems.B . wet systems.C . deluge systems.D . pre-action systems.View AnswerAnswer: B Explanation:
A sprinkler system employing automatic sprinklers that are attached to a piping system that contains air that might or might not be under pressure, with a supplemental detection system installed in the same areas as the sprinklers, is known as a:
A sprinkler system employing automatic sprinklers that are attached to a piping system that contains air that might or might not be under pressure, with a supplemental detection system installed in the same areas as the sprinklers, is known as a:A . Dry SystemB . Preaction SystemC . Wet SystemD...
What is the maximum floor area that can be protected by a single ordinary hazard sprinkler system?
What is the maximum floor area that can be protected by a single ordinary hazard sprinkler system?A . 25,000 ft2 (2,320 m2)B . 40,000 ft2 (3,720 m2)C . 52,000 ft2 (4,830 m2)D . 70,000 ft2 (6,503 m2)View AnswerAnswer: C Explanation: The maximum floor area on any one floor to be...
