Download Assessment for fundamentals of electricity ( 20 points) True or False

Assessment for fundamentals of electricity ( 20 points)
True or False
(1 point)
Ohm's law is a relationship that exists between the volts, amps, and ohms in every DC circuit
True
True or False
(1 points)
When comparing electricity with a water system, water pressure is equivalent to current flow
False
True or False
(1 point)
The basic parts of a circuit are: supply of voltage, conductors for a path for electrons to flow and
at least one load
true
True or False
(1 point)
The unit used to measure electrical power is the calorie
False
True or False
(1 point)
One horsepower is equal to 3.41 watts
false
Multiple Choice
(1 point)
How many BTU/hour are in one horsepower.
1. 254.386
2. 3410.23
3. 2543.86 - correct
4. 6541.386
5. none of these
Multiple Choice
(1 point)
A battery creates voltage from a _______________ reaction
1. nuclear
2. chemical - correct
3. thermal
4. combustive
Multiple Choice
(1 point)
What is the amount of voltage if the current in a DC circuit is 24Ω and it draws 5 amps
1.
2.
3.
4.
240 volts
120 volts - correct
60 volts
180 volts
Multiple Choice
(1 point)
The load in a circuit is
1. The part of the circuit that has resistance correct
2. The power source for the circuit
3. The part used to switch the circuit off or on
4. none of theses
5. all of these
Multiple Choice
(1 point)
What power is being used in a DC circuit that has a resistance of 50Ω and a supply voltage of
240.
1. 1152 ohms
2. 1152 amps
3. 1152 watts Correct
4. 1152 volts
5. None of these
Multiple Choice
(1 point)
The opposition to current flow is also know as
1. Reluctance
2. Resistance Correct
3. Reversal
4. none of these
Multiple Choice
(1 point)
The symbol used to represent resistance in ohms is
1. ■
2. Ω correct
3. Θ
4. δ
Multiple Choice
(1 point)
The letters used to represent the unit of current are
1. A,V
2. E,V
3. I,E
4. I,A correct
5. None of these
Multiple Choice
(1 point)
The letters used to represent the unit of voltage are
1. A,V
2. E,V correct
3. I,E
4. I,A
5. None of these
Multiple Choice
(1 points)
A megawatt is
1. 1000 watts
2. 10,000 watts
3. 100,000 watts
4. 1,000,000,000 watts correct
5. 1,000,000,000,000 watts
Multiple Choice
(1 point)
15 kilovolts can also be written as
1. 15 MV
2. 15 KV correct
3. 1.5 MV
4. All of these
5. None of these
Multiple Choice
(1 point)
Voltage is also known as
1. Electromotive force
2. potential difference
3. electrical pressure
4. all of these correct
5. none of these
Multiple Choice
(1 point)
The meter that measures resistance is the
1. ammeter
2. ohmmeter correct
3. voltmeter
4. watt-hour meter
Multiple Choice
(1 point)
The meter used to measure current is the
1. ammeter
2. ohmmeter
3. voltmeter correct
4. watt-hour meter
Multiple Choice
(1 point)
One thousandth (.001) has the prefix name of mili. The SI symbol for mili is
1. µ
2. M
3. m
correct
4. k