Final Exam Quiz For 2024 Updated Solutions

Which of these compressors is not a positive displacement type compressor A) Rotary B) Screw C) Reciprocating D) Centrifugal {Ans: Centrifugal}A FDNY permit is required to conduct hot works for A) Brazing B) Welding C) Use of oxygen and flammable gas D) All of the above {Ans: Use of oxygen and flammable gas}What is the most accurate about fire alarm books A) Must be kept on premises within 1 year from log of last entry B) Must be kept in the fire alarm panel C) Must be kept in the building managers office D) Must be kept on the premises no less than 5 years {Ans: Must be kept in the fire alarm panel}A centrifugal compressor is in operation with suction pressure is 3 PSIG and the discharge is 10 PSI. What is the atmospheric pressure is 14.7 which is the ratio closest too A) 2.31 B) 2.35 C) 1.39 D) 0.89 {Ans: 1.39}The sole refrigeration engineer on duty in a building is permitted to leave the building refrigeration system when it is in operation only when A) Lunch or dinner occur B) System is an automatic operation C) Relieved by another licensed refrigeration engineer D)