Which of the following statements regarding refrigerants is NOT correct?
5ELECT THE CORRECT ANSWER
Which of the following statements best describe Demand Control Ventilation (DVC) in Building Automation Systems?
If installed without ancillary equipment, photovoltaic power cells generate what type of power?
A facility has the thermal cooling load profile shown in the table below. The utility rate tariff has an on-peak time-of-use billing period that begins at 10:00 a.m. and ends at 7:00p.m. Calculate the storage capacity required for a load-shifting operating strategy, to make sure that no thermal cooling Is generated by the chiller during the on-peak utility rate period.
[Question from the previous image, which was about storage capacity for load shifting, but the table was missing]
A desk lamp is located inside a windowless office. The office is heated during the winter and cooled during the summer. When the lamp is switched on, how much of the energy consumed by the lamp becomes heat in the office space?
How can you tell if steam traps in a steam distribution system may NOT be working correctly?
How much fuel is required to heat 50 kg water from 20°C water to 200°C saturated steam? Assume the boiler is 80% efficient (based on the higher-heating value of the fuel).
A high-pressure steam system passes 180°C condensate (saturated liquid) through a steam trap to an atmospherically vented condensate receiver tank. If the steam trap is working properly, how much of the condensate mass can be lost out the vent of the receiver tank in the form of flash steam?
TESTED 30 Apr 2025
