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Rate In Electrical Systems
Test Description: Principles of Technology Unit 3: Rate Subunit 3: Electrical Systems review
Instructions: Answer all questions to get your test result.
1) Which of the following is a unit for electrical charge?
A
volt
B
coulomb
C
watt
D
ampere
2) This device controls the flow of electrical current to prevent overheating.
A
flowmeter
B
breaker panel
C
analog panel
D
ammeter
3) Charge divided by time is called
A
electrical resistance.
B
current.
C
voltage.
D
heat-flow rate.
4) What do we call a continuous path for charge to flow?
A
radian
B
conductor
C
insulator
D
short circuit
5) Batteries and solar cells produced what type of current?
A
series
B
parallel
C
direct
D
alternating
6) Power companies use this type of current because it is cheaper to move over long distances.
A
series
B
direct
C
alternating
D
parallel
7) Ammeters measure current while ____ measure voltage.
A
hyrometers
B
ohmeters
C
voltmeters
D
ammeters
8) Where should a voltmeter be placed within a circuit?
A
between to power source and the load
B
does not matter
C
in series with the power source and the control element
D
parallel to the load
9) If a wave has 240 cycles in 4 seconds, what is its frequency?
A
240 cycles / 4 seconds
B
240 cycles - 4 seconds
C
240 cycles * 4 seconds
D
240 cycles + 4 seconds
10) Which units measure electrical frequency?
A
cycles per second; hertz
B
hertz; coulomb
C
hertz; amperes
D
cycles per second; coulomb
*select an answer for all questions
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