What process causes dew to form on grass?
A) Deposition B) Condensation C) Vaporization D) Freezing
B
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Spacing of smoke detectors on flat surfaces can be a distance of up to _________.
A. 10ft. B. 30ft. C. 50ft. D. 100ft.
Answer the following statement(s) true (T) or false (F)
1. Although the light-emitting diode (LED) can be found in nearly every electronic circuit, it is not easy to spot unless you’ve had some training in electronics. 2. In a seven-segment LED display, which is used in calculators, automobile instrument panels, and countless other applications, each segment is an LED. 3. In a common-anode seven-segment LED display, each LED must have its own current-limiting resistor to prevent the LED from burning out. 4. A Zener diode might look like a PN junction diode, but it behaves drastically different in a circuit. 5. If a varying reverse bias is applied to a varactor diode, the capacitance will stay the same.
Feathering the ends of the tack welds with a grinder helps to _____
a. ensure the root pass has the proper root reinforcement b. limit the joint penetration of the root pass c. fuse the root pass into the tack weld d. transition the root pass into the cap pass
An overfeeding metering device can cause?
A) Low suction pressure, low superheat, and low subcooling B) High suction pressure, low superheat, and low subcooling C) High suction pressure, high superheat, and low subcooling D) Low suction pressure, high superheat, and high subcooling