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Test Description: Unit 0-3
Instructions: Answer all questions to get your test result.
1) What is the unit of measurement for Current .
A
Amps
B
Watts
C
Volts
D
Ohms
2) What is the unit of measurement for Voltage
A
Micro Farads
B
Watts
C
Volts
D
Voltage
3) Which of these is not an insulator
A
Plastic
B
Wood
C
Rubber
D
Water
4) A atom that has lost electrons is called a:
A
Electron
B
Neutron
C
Negativiely charged Ion
D
Positively charged Ion
5) What do the gold and silver bands on a resistor represent?
A
Power
B
A tolerence of 10% and 0.5%
C
The number of zeros
D
A tolerence of 5% and 10 %
6) 0.9mA is equal to:
A
0.0009V
B
9A
C
9000A
D
0.0009A
7) Copper is one of the best:
A
Insulators
B
Metals
C
Conductors
D
Ions
8) When measuring Curent with a multi-meter you must:
A
Add the Multimeter in Series
B
None of the above
C
Add the Multimeter in parallel
D
Turn the power off
9) When measuring resistance with a multi-meter you must:
A
None of the above
B
Leave the power on
C
Add the Multimeter in series
D
Turn the power off
10) How many legs does an SPDT switch have?
A
3
B
2
C
4
D
1
11) Primarily, what does a resistor do?
A
Increases Voltage
B
Restricts Current
C
Restricts Voltage
D
Restricts Power
12) In a Combination circuit:
A
Voltage is the same through every component
B
Resistance is the same through every component
C
Current is the same through every component
D
None of the above
13) Watts is the unit of measurement for:
A
Voltage
B
Power
C
Capacitance
D
Resistance
14) What does a capacitor do?
A
Stores energy to keeps voltage levels stable
B
It makes voltage level drop
C
Keeps resistance the same throughout each component
D
It is a second battery in a circuit
15) What is an LDR
A
Light Deflecting Resistor
B
Light Diode Resistor
C
Long Direct Resistor
D
Light Dependant Resistor
16) What is a relay?
A
A Resistor
B
An electromagnetic switch
C
A Magnetic LED
D
A capacitor
17) What is the unit of measurement for capacitance?
A
Micro Farads
B
Amps
C
Watts
D
Volts
18) A 73.5M Ohm Resistor is the same as:
A
73,500,000 Ohms
B
0.000000735 Ohms
C
7350 Ohms
D
7, 350,000 Ohms
19) In Ohms Law:
A
Voltage = Current divided by Resistance
B
Voltage = Current mutiplied by Resistance
C
Current = Voltage multiplied by Resistance
D
Resistance = Voltage mutliplied by Current
20) An Rotary switch has:
A
2 inputs and 1 output
B
2 inputs and 2 outputs
C
3 inputs and 3 outputs
D
an array of inputs and outputs
*select an answer for all questions
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