Answer the following statement(s) true (T) or false (F)
1. It is difficult to categorize fuel cells since they are still developing as commercial products.
2. Virtually all of the electricity generated by a stationary system is available for use.
3. Fuel cells are very reliable, with some of the high temperature systems showing reported online availability over 99.999% of the time.
4. Fuel cells will eventually replace mainline utilities in medium scale installations.
5. North American power is supplied at 250 Hz (cycles per second) so that the generators, in essence, spin at the same rate.
1. True
2. True
3. True
4. False
5. False
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When oiling a permanently lubricated motor, a 20-weight, non-detergent motor oil should be used.
Answer the following statement true (T) or false (F)
Catfish have long whiskers known as ____________________ extending from their mouths
Fill in the blank(s) with correct word
Which grade of diesel fuel is best suited for cold weather operation?
A) Grade #3 B) Grade #2 C) Grade #1 D) None of these
The MegaCo signaling protocol offers which advantage?
A) more calls are allowed to travel across the same number of facilities B) data can ride on the same network as the voice in a similar format, either packet or cell C) calls no longer need to go back to the class 5 switch in order to be switched through the network D) all of the above