Explain the role of a rectifier in a remote control lighting system.
What will be an ideal response?
The low-voltage relay in a remote control lighting system operates with a rectified alternating current, which is actually a direct current. The sinewave of an AC current is rectified into a pulsating direct current waveform due to the rectifier.
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Environmental conditions that can cause water to penetrate a curtain wall include gravity, wind velocity and pressure, surface tension, and _____.
a. barometric pressure b. momentum c. osmosis d. pH balance
The American Iron and Steel Institute (AISI) and the Society of Automotive Engineers (SAE) provide similar steel numbering systems. Steels are identified by four numbers, except for some chromium steels, which have five numbers. Define the numbers used for SAE 1020.
What will be an ideal response?
Technician A says that a blended torque transmission (BTT) provides for continuously variable output ratios. Technician B says that for a planetary gearset such as those used in BTTs to produce an output, one of the three planetary members must be held stationary. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
The area of a circle is equal to the product of 
and the square of the diameter.
Answer the following statement true (T) or false (F)