A(n) ____________________ motor is used as a traction motor because of its capability to produce a high torque with only a moderate increase in power at reduced speed.
Fill in the blank(s) with the appropriate word(s).
DC series motor
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A flow switch is a device that can be inserted in a pipe so that when liquid or air flows against a part of the device called a ____, a switch is activated.
a. pilot tube b. Bourdon tube c. bulb d. paddle
The exhaust valves shown in the preceding photograph are from a four cylinder interference engine that has failed. All of the valves are bent an equal amount. Which of the following could be the cause?
A. A broken timing belt B. ?Excessive chain slack C. ?Either of the above D. ?None of the above
As the temperature surrounding a self-regulating heating cable decreases, the _____.
a. conductive core or fibers expand b. electrical resistance increases c. electrical current decreases d. electrical resistance decreases
Explain the terms arrow side and other side and indicate where the weld symbol is located on the reference line when using arrow side and other side.
What will be an ideal response?