Most tropical crops systems are matched to:
A. rainy seasons.
B. daylength changes.
C. prevailing winds.
D. temperature patterns.
Answer: A
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Assume that you just got out of an airplane and you switched on your cell phone. If the closest BS is located at a distance of 5 km, what are the minimum and the maximum delay before a contact is established between your cell phone and the nearest BS, given that the BS transmits beacon signals every one second?
What will be an ideal response?
Answer the following statement(s) true (T) or false (F)
Bench planes are given names according to their length.
ANSI/TIA/EIA 570-C was developed to establish a standard for a __________ structured cabling system that can accommodate many different applications.
a. communications b. voice c. data d. generic
The oil in a vacuum pump should be changed _____
a. about every five minutes of pump operation b. only when changing from one refrigerant to another c. immediately after pumping down a wet or contaminated system d. about every 25 hours of pump operation