Final Revision Question Preview (ID: 40400)
Unit 0-3.
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What is the unit of measurement for Current .
a) Volts
b) Ohms
c) Amps
d) Watts
What is the unit of measurement for Voltage
a) Voltage
b) Volts
c) Watts
d) Micro Farads
Which of these is not an insulator
a) Rubber
b) Water
c) Plastic
d) Wood
A atom that has lost electrons is called a:
a) Positively charged Ion
b) Negativiely charged Ion
c) Electron
d) Neutron
What do the gold and silver bands on a resistor represent?
a) Power
b) The number of zeros
c) A tolerence of 5% and 10 %
d) A tolerence of 10% and 0.5%
0.9mA is equal to:
a) 0.0009V
b) 9000A
c) 9A
d) 0.0009A
Copper is one of the best:
a) Insulators
b) Metals
c) Conductors
d) Ions
When measuring Curent with a multi-meter you must:
a) Add the Multimeter in Series
b) Add the Multimeter in parallel
c) Turn the power off
d) None of the above
When measuring resistance with a multi-meter you must:
a) Leave the power on
b) Add the Multimeter in series
c) Turn the power off
d) None of the above
How many legs does an SPDT switch have?
a) 1
b) 2
c) 3
d) 4
Primarily, what does a resistor do?
a) Restricts Voltage
b) Restricts Current
c) Increases Voltage
d) Restricts Power
In a Combination circuit:
a) Resistance is the same through every component
b) Voltage is the same through every component
c) Current is the same through every component
d) None of the above
Watts is the unit of measurement for:
a) Voltage
b) Capacitance
c) Resistance
d) Power
What does a capacitor do?
a) Keeps resistance the same throughout each component
b) Stores energy to keeps voltage levels stable
c) It is a second battery in a circuit
d) It makes voltage level drop
What is an LDR
a) Light Deflecting Resistor
b) Long Direct Resistor
c) Light Dependant Resistor
d) Light Diode Resistor
What is a relay?
a) A capacitor
b) A Resistor
c) An electromagnetic switch
d) A Magnetic LED
What is the unit of measurement for capacitance?
a) Micro Farads
b) Volts
c) Watts
d) Amps
A 73.5M Ohm Resistor is the same as:
a) 0.000000735 Ohms
b) 7350 Ohms
c) 73,500,000 Ohms
d) 7, 350,000 Ohms
In Ohms Law:
a) Voltage = Current mutiplied by Resistance
b) Current = Voltage multiplied by Resistance
c) Resistance = Voltage mutliplied by Current
d) Voltage = Current divided by Resistance
An Rotary switch has:
a) 2 inputs and 2 outputs
b) 2 inputs and 1 output
c) an array of inputs and outputs
d) 3 inputs and 3 outputs
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