A technician measures a return air temperature at the furnace of 70°F and a supply air temperature of 180°F on a furnace whose temperature rise is rated at 40 to 60°F. The technician should:
A) Leave it alone; it is working great.
B) Decrease the airflow to reduce the temperature rise.
C) Increase the gas manifold pressure to reduce the temperature rise.
D) Increase the airflow to reduce the temperature rise.
D
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A method of handling the problem of review questions is to compile a list of all the questions that arise, the ____, then later send a single e-mail to the prime consultant to deal with all the items that have accumulated.
A. punch list B. query register C. query list D. risk register
Fish feed should be about _____ protein
a. 15% c. 35% b. 25% d. 50%
What causes a fuse to blow?
A) A decrease in circuit resistance B) An increase in the current flow through the circuit C) A sudden decrease in current flow through the circuit D) Both A and B
Explain the function of the exhaust gas recirculation system monitor.
What will be an ideal response?