SACA 201 SILVER QUESTIONS AND ANSWERS
A(n) __________ is used to measure resistance. - Answers - Ohmmeter
What is the total measurement of voltage over the power source called? - Answers -
Applied Voltage
Rotary motion is the output of which electrical output device? - Answers - Motor
Current is measured in units of __________. - Answers - Amps
What step should be taken to correctly measure the resistance of a resistor that is wired
in a circuit? - Answers - Disconnect one end of the resistor
The resistance provided by an inductor in an AC circuit is called __________. - Answers
- Inductive reactance
What does hertz stand for on a sine wave graph? - Answers - Cycles per second
What is the total inductance of a series circuit if the power supply frequency is 60 Hz
and 3 coils each have an inductance of 0.3 henrys? - Answers - 0.9 Henrys
A common application of mutual inductance is found in a device called a __________. -
Answers - Transformer
What is the secondary voltage if the primary is 480VAC? (The primary coil have 300
turns and the secondary coil has 125 turns)* - Answers - 200 VAC
Which of the following is not a component of a basic electrical circuit? - Answers -
Insulator
What is the thin insulator placed between the plates of a capacitor called? - Answers -
Dielectric
One of the effects a capacitor has in a DC circuit is that it will __________. - Answers -
Charge to a voltage equal to the source voltage
Capacitance is measured in __________. - Answers - Farads
What is a drawing showing electrical symbols and paths? - Answers - Schematic
Current in a(n) __________ circuit is divided among the branches of the circuit. -
Answers - Parallel
, When the wire or foil strip inside a fuse melts, the fuse is said to be _________. -
Answers - Blown
The minimum requirement for a complete electric circuit is a path that has - Answers - a
power source, load, and wires to connect it all
The Ohm's Law formula for calculating voltage is __________. - Answers - E = I × R
The amount of voltage that is used by each load depends on the __________ of each
load. - Answers - Resistance
What is the relationship of the applied voltage cross two electrical components in
parallel with each other? - Answers - They are the same
Which of the following is not a component of a transformer? - Answers - Plate
What input device is shown in the circuit - Answers - Left to right cell, switch, lamp,
cable Single Pole Single Throw Switch
A circuit that uses resistors to produce a voltage that is lower than the source voltage is
called a __________. - Answers - Voltage divider
What change occurs in a circuit powered by a battery when a parallel branch is added?*
Voltage decreases
Current decreases
Current increases
Voltage increases - Answers - Current increases
Which of the following statements is not true about measuring the resistance of a
component that is connected in a circuit?*
Connect the leads across the component.
Turn off the power supply.
Disconnect one of the component leads from the circuit.
Make sure the power supply is on. - Answers - Make sure the power supply is on.
What is the total capacitance of three 25 microfarad capacitors in series?*
75 microfarads
25 microfarads
5 microfarads
8 microfarads - Answers - 8 microfarads
What feature of a ground circuit creates a safe path for current?*
Provides a current return to source
Low resistance to ground
High resistance to ground
Creates an open circuit - Answers - Low resistance to ground
A(n) __________ is used to measure resistance. - Answers - Ohmmeter
What is the total measurement of voltage over the power source called? - Answers -
Applied Voltage
Rotary motion is the output of which electrical output device? - Answers - Motor
Current is measured in units of __________. - Answers - Amps
What step should be taken to correctly measure the resistance of a resistor that is wired
in a circuit? - Answers - Disconnect one end of the resistor
The resistance provided by an inductor in an AC circuit is called __________. - Answers
- Inductive reactance
What does hertz stand for on a sine wave graph? - Answers - Cycles per second
What is the total inductance of a series circuit if the power supply frequency is 60 Hz
and 3 coils each have an inductance of 0.3 henrys? - Answers - 0.9 Henrys
A common application of mutual inductance is found in a device called a __________. -
Answers - Transformer
What is the secondary voltage if the primary is 480VAC? (The primary coil have 300
turns and the secondary coil has 125 turns)* - Answers - 200 VAC
Which of the following is not a component of a basic electrical circuit? - Answers -
Insulator
What is the thin insulator placed between the plates of a capacitor called? - Answers -
Dielectric
One of the effects a capacitor has in a DC circuit is that it will __________. - Answers -
Charge to a voltage equal to the source voltage
Capacitance is measured in __________. - Answers - Farads
What is a drawing showing electrical symbols and paths? - Answers - Schematic
Current in a(n) __________ circuit is divided among the branches of the circuit. -
Answers - Parallel
, When the wire or foil strip inside a fuse melts, the fuse is said to be _________. -
Answers - Blown
The minimum requirement for a complete electric circuit is a path that has - Answers - a
power source, load, and wires to connect it all
The Ohm's Law formula for calculating voltage is __________. - Answers - E = I × R
The amount of voltage that is used by each load depends on the __________ of each
load. - Answers - Resistance
What is the relationship of the applied voltage cross two electrical components in
parallel with each other? - Answers - They are the same
Which of the following is not a component of a transformer? - Answers - Plate
What input device is shown in the circuit - Answers - Left to right cell, switch, lamp,
cable Single Pole Single Throw Switch
A circuit that uses resistors to produce a voltage that is lower than the source voltage is
called a __________. - Answers - Voltage divider
What change occurs in a circuit powered by a battery when a parallel branch is added?*
Voltage decreases
Current decreases
Current increases
Voltage increases - Answers - Current increases
Which of the following statements is not true about measuring the resistance of a
component that is connected in a circuit?*
Connect the leads across the component.
Turn off the power supply.
Disconnect one of the component leads from the circuit.
Make sure the power supply is on. - Answers - Make sure the power supply is on.
What is the total capacitance of three 25 microfarad capacitors in series?*
75 microfarads
25 microfarads
5 microfarads
8 microfarads - Answers - 8 microfarads
What feature of a ground circuit creates a safe path for current?*
Provides a current return to source
Low resistance to ground
High resistance to ground
Creates an open circuit - Answers - Low resistance to ground
