Overextension of the fly section of an extension ladder is prevented by _____.
a. locks
b. stops
c. guides
d. pawls
Ans: b. stops
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Figure 21-2
The accompanying figure indicates that there is a 200 amp, disconnect switch rated at 5,000 volts that can be used to disconnect the ____________________ from the power line.
Fill in the blank(s) with the appropriate word(s).
All of the following concerning the use of jumper wires are true except:
A. The jumper should be fused B. The jumper wire can be used to by-pass a switch C. The jumper wire can be used to by-pass the load device D. It can be used to supply an alternate ground circuit
In the Simpson gear train with the planet carrier as the output, the carrier will always:
A. Rotate in the same direction as the input gear. B. Rotate in the opposite direction of the input. C. Rotate in the same direction as the sun gear. D. Rotate in the same direction as the ring gear.
Before removing a timing belt what should the technician do?
A) Remove the water pump B) Lock the transmission in 1st gear C) Disconnect the speedometer cable D) Align the timing marks