ASVAB Electronics Information || with 100% Errorless Answers.
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ASVAB Electronics Information
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ASVAB Electronics Information
What effect does a speaker wire's gauge have on speaker sound quality? correct answers Lower gauge wires are thicker with better sound quality.
What's the primary advantage of a quad-band cell phone over a dual-band cell phone? correct answers Coverage area. There are four frequency bands used t...
ASVAB Electronics Information || with 100% Errorless
Answers.
What effect does a speaker wire's gauge have on speaker sound quality? correct answers Lower
gauge wires are thicker with better sound quality.
What's the primary advantage of a quad-band cell phone over a dual-band cell phone? correct
answers Coverage area. There are four frequency bands used throughout the world and a quad-
cell phone would be able to access any of them.
When working with electricity, you should assume that all electrical equipment is alive unless
you know for certain otherwise. This prevents: correct answers Personal injury. The greatest
concern when dealing with electricity is personal welfare.
The heat effect of current is created: correct answers When the current overcomes resistance in
the wire, creating heat. This heat effect occurs when current must overcome the resistance of
wire.
What special type of diode is commonly used to regulate voltage? correct answers Zener diode,
which is available in a variety of voltages.
Electromotive force is another way of saying correct answers Voltage. It is the pressure of the
current.
A primary advantage of using a Li-Ion battery instead o a NiMH battery in your cell-phone is:
correct answers Li-Ion battries. Much more so than Nickel Metal Hydride [NiMH] batteries.
Transistors contain at least three terminals called the: correct answers Base, emitter, and
collector.
To control a light fixture from two different wall switches, you should use: correct answers Two
three-way switches.
A transistor is also called a: correct answers Crystal amplifier.
To decrease capacitance, capacitors: correct answers Should be connected in series.
A resistor marked 2.5K ohms has the value of: correct answers 2,500 ohms. K = one kilo or
1,000.
Ohm's law states: correct answers Voltage [V] = Current [I] x Resistance [R]
An electromagnetic-induction device usually has which of the following materials in its core?
correct answers Iron. It's easily magnetized and demagnetized, so it works well for this device.
, How many diodes should you expect to find in a bridge rectifier? correct answers A bridge
rectifier [aka full wave rectifier] contains 4 diodes. Rectifiers convert AC to DC current by only
allowing it to flow one way.
Another name for cycles per second is: correct answers Hertz [Hz]. The number of times AC
changes direction in one second is known as frequency, which is measured in Hz.
Newer cell phones contain a removable memory card, which is often called a: correct answers
SIM stands for Subscriber Identity Module. The card contains information such as your phone
number, billing information, and address book. It makes switching phones much easier.
When current flows through a wire, the following influences are present: correct answers
Voltage [electric potential], ohms [resistance], and amperes [current] are always present when
current flows through a wire.
Millihenries are related to: correct answers Inductors, which are rated in millihenries.
Radar can operate at frequencies as high as: correct answers 100,000 Megahertz [MHz]
Radio waves travel: correct answers Radio waves travel at the speed of light. The speed of sound
is much slower.
Changing alternating current to direct current is called: correct answers Rectification is the
process of changing AC to DC.
Insulated fittings can be used to splice wires, thus eliminating the need for: correct answers
Insulated fittings replace soldering wires together.
The circuit symbol of six vertical lines of alternating lengths that do not touch in s circuit is:
correct answers A battery symbol.
The circuit symbol of a nearly completed circle, which looks sort of like a horseshoe at the ends
is: correct answers The Ohm symbol.
How many wires do serial cables used on computers have? correct answers There are 9 wires in
serial cables used on computers. This is true, even if the cable has a 25-pin connector. Serial
cables are often used to connect computers to perpetual devices.
To produce greater storage of electrons and more capacitance, capacitors should: correct answers
Connecting capacitors in parallel produces the most capacitance.
A light bulb is 60 watts. Operated at 120 volts, how much current does it draw? correct answers
Power = Current x Voltage or Current = Power/Voltage. Which means, = 0.5 ampere.
A number-12 wire, compared to a number-6 wire: correct answers The larger the number, the
smaller the diameter of the wire. Thus, a number-12 is smaller than a number-6.
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