Shortening the pipe run when it is installed so that when the pipe heats up it expands to its intended length is known as _____.
a. cold springing
b. hot springing
c. an expansion guide
d. flexibility in layout
a. cold springing
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Plants will not be harmed if the night temperature drops this many degrees below the daytime temperature
A) 10-15°F B) 15-25°F C) 15-20°F D) 25-30°F
When the female is ready to accept the male for mating, it is called _____ or being in heat
a. Oogenesis c. Synapsis b. Estrus d. Spermatogenesis
Some hybrid air conditioning systems use an electrically driven compressor that uses a special lubricant. What precaution should be taken when servicing these systems?
A) A dedicated recycling machine for the HEV B) A special gauge set C) Extra refrigerant filters D) Low pressure pump
Junction diodes have a forward voltage drop of about ____ volt for silicon and 0.4 volt for germanium.
A. 0.5 B. 0.6 C. 0.7 D. 0.8