AR155-1X Building Utilities Exit Exam [Reviewer] - BU2

AR155-1X Building Utilities Exit Exam [Reviewer] - BU2 center-opening door -Answer-An elevator door type which permits simultaneous loading and unloading without undue passenger contact to reduce passenger transfer time and avoid discomfort. expansion valve -Answer-What device in the air conditioning system is used to decrease the pressure causing the refrigerant to change back into gas and cool down? pre-signal system -Answer-A fire alarm system type in which the alarm sounds only at predetermined locations until someone in authority initiates a general alarm. 19.17 ohms -Answer-What is the resistance in a circuit with a line voltage of 240V and an ampere rating of 12A? Consider a voltage drop of 4%. 3600mm -Answer-What should be the minimum width of lobbies between two (2) banks of passenger elevators? Average lobby time -Answer-It is the average time spent by a passenger between arriving and leaving the lobby in the car. 600mm -Answer-What should be the minimum distance of the passenger elevator core's outer face from the edge of the corridor? 4.20 -Answer-The lobby width between two banks of service elevators should not be less than ___ meters. reciprocating type compressors -Answer-What type of HVAC compressors are usually used in smaller systems up to 100-ton cooling load and are typically more efficient than the other types? register -Answer-A supply air outlet in the HVAC distribution system combined with a volume control damper is called a ________. cooling coil, air filter, blower, drain pipe, fins -Answer-Wha