Years of rigorous testing are required to ensure the safety of _____
A) crops
B) wells
C) pesticides
D) wetlands
C
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Answer the following statements true (T) or false (F)
The World coordinate system can be rotated.
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.
One of two basic types of drawings cutting through an entire building or structure, ____ cut across the entire length of a building.
A. longitudinal sections B. cross sections C. lengthwise sections D. lateral sections
Suppose the data sheet for a standard TTL four NOR gate IC lists values of: Icch = 6 ma, Iccl = 16 ma, and Vcc = 5 v. What is the average power dissipated by each gate?
A) 13.75 mw B) 50 mw C) 12.50 mw D) 55 mw