Type NM cable is often purchased in __________-foot rolls that are packaged in plastic wrapping or in cardboard boxes.
a. 100
b. 150
c. 250
d. 1000
c. 250
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The requirements for torque motors, shaded-pole motors, permanent split capacitor motors, and AC adjustable-voltage motors can be found in ____
a. NEC Section 370 b. NEC Section 220 c. NEC Section 501 d. NEC Section 430
Form tolerances include:
A. Straightness and concentricity B. Flatness and straightness C. Flatness and concentricity D. Position and flatness
An Indium-Gallium-Arsenide-Nitrogen alloy developed at Sandia National Laboratory is said to have potential uses in electricity-generating solar cells. The new material is expected to have a longer life, and it is believed to have a 40% efficiency rate, which is nearly twice that of standard silicon solar cells. The useful life of a telecommunications satellite could be extended from 10 to 15 years by using the new solar cells. What rate of return could be realized if an extra investment now of $950,000 would result in extra revenues of $450,000 in year 11, $500,000 in year 12, and amounts increasing by $50,000 per year through year 15?
What will be an ideal response?
A saw blade that is too coarse for cutting tubing _____.
a. will be worn out in a single cut b. is likely not suitable for cutting thick material either c. will not be hardened enough to cut any metal d. will chatter and snag as it reaches the mid-point of the tube