What measurements are required to check combustion efficiency?
A) Manifold pressure, firing rate, and gas heating value
B) Ambient temperature, stack temperature, flue gas O2%, and flue gas CO%
C) O2%, CO2%, and CO ppm
D) Return air temperature, supply and temperature, and stack temperature
B
You might also like to view...
Two technicians are discussing tire pressure and temperature. Technician A says that tire pressure will drop 1 psi for every 10 degrees drop in temperature. Technician B says that the tire pressure will increase as the vehicle is being driven. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
A P0100 DTC is being discussed. Technician A says that an open or short in mass air flow circuit could be the cause. Technician B says that a defective MAF sensor could be the cause. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
To reset a tripped circuit breaker, the technician should:
A) Reinstall the breaker in the electric panel. B) First turn the breaker off, and then back on. C) Move the breaker switch to the on position. D) Use a wireless breaker tool to reboot the breaker.
What type of chiller is capable of continuous (stepless) capacity control?
A) Reciprocating chillers B) Screw chillers C) Centrifugal chillers D) Rotary chillers