What hormone is produced by the thyroid as a response to cool environmental temperatures?
A. Testosterone
B. Thyroxine
C. Relaxin
D. Estrogen
Answer: B
You might also like to view...
Explain why coaxial cable is still in wide use in industrial control systems.
What will be an ideal response?
Which of the following statements is correct?
a. Electronic defrost controls use logic to determine the need for a defrost cycle. b. Mechanical defrost controls are significantly cheaper than electronic models. c. A defrost cycle starts as soon as the coil temperature is below the setpoint. d. Mechanical defrost controls base defrost cycles on time alone
If you see the sight glass bubbling should you add refrigerant? Why or why not?
a. No, the system may have just started or there may be a low load. b. No, wait until the bubbles stop before adding refrigerant. c. Yes, bubbles always mean the system is low on charge. d. Yes, when in doubt you should always add refrigerant.
What is the most common form of auxiliary heat used in heat pumps?
A) Gas furnace B) Oil furnace C) Electric resistance strip heat D) Electric boiler