Daily Safety and Fire Prevention Question (12.17)
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The last edit to this post was made by fight3558586 on 2017-2-10 at 07:57. Multiple choice 1: The control valves used to connect the inlet and outlet of the alarm valve in a sprinkler system should be ( ). A. Signal valve B. Check valve C. Solenoid valve D. Flanged gate valve Multiple-choice 2. Which of the following statements about outdoor fire hydrants are correct? A. Underground fire hydrants should be installed in hydrant pits, and the inner diameter of such pits should not be less than 1.2 m. B. Outdoor fire hydrants installed in the same building should use nozzles and accessories from the same manufacturer. C. The allowable deviation for the installation height of fire hydrant nozzles is ±20 mm. D. The water outlet at the top of underground fire hydrants should be aligned directly with the opening of the pit. E. Underground fire hydrants should be equipped with permanent identification markers. Reference answers: 1. A 2. BCE
The control valves for connecting the inlet and outlet of the alarm valve in a automatic sprinkler system should be of type (A). A. Signal valve B. Check valve C. Solenoid valve D. Flanged gate valve Multiple-choice 2. Which of the following statements about outdoor fire hydrants are correct? (CBE) A. Underground fire hydrants should be installed in hydrant chambers, the inner diameter of which should not be less than 1.2 m. B. Outdoor fire hydrants installed in the same building should use nozzles and accessories from the same manufacturer. C. The allowable deviation for the installation height of fire hydrant nozzles is ±20 mm. D. The water outlet at the top of underground fire hydrants should face directly toward the opening of the chamber. E. Underground fire hydrants should be equipped with permanent identification markers