Lightning is the result of static charges built up in clouds that contain a large amount of moisture.
Answer the following statement true (T) or false (F)
True
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Refer to the illustration, which shows an exposed-grid suspended ceiling that is 10' × 20' and uses 2' × 4' ceiling tiles. The number of 12' main runners required for the ceiling is _____.
a. two b. three c. four d. five
Extra care must be taken to make sure the grounding path in a hazardous location is of ____________________ impedance.
Fill in the blank(s) with the appropriate word(s).
Technician Asays a normally open switch is used in most coolant temperature warning light circuits. Technician B says most oil pressure warning circuits use a normally closed switch. Who is correct?
A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A nor B
What was the effect of tight and exploitative overlordship in places such as northern France?
a. It led the peasants to flee in large numbers to towns and cities. b. It induced peasants into open and violent revolt against their lords. c. It bound the peasantry together as a group living with common interests. d. It drove the peasants to emigrate to Muslim territories.