Which best describes an analog audio signal?
A. it starts and stops while the sound is playing
B. intensity varies and is continuous
C. consists of discrete pulses
D. Morse code is an example
Answer: B
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Answer the following statement(s) true (T) or false (F)
1. Mechanical type brakes cannot hold a suspended load.
2. In the accompanying figure, the brake is applied automatically when the motor is not operating.
3. Dynamic braking for a DC motor is very effective, but the braking effect becomes weaker as the armature slows down.
4. Plugging is used with direct current motors more than with three phase squirrel cage motors.
5. One method of providing plugging control is with the use of an automatic timed circuit.
The term gymnosperm means ________ because this is a group of plants that do not produce a true fruit.
Fill in the blank(s) with the appropriate word(s).
How many liters of liquid are in a five-gallon container that is half full?
a. 5.14 b. 8 c. 9.46 d. 18.9
What is the difference between a mainframe and a microcomputer?
What will be an ideal response?