SACA 201 SILVER EXAM QUESTIONS
AND ANSWERS 100% VERIFIED
A(n) __________ is used to measure resistance. - ANSWER-Ohmmeter
What is the total measurement of voltage over the power source called? - ANSWER-
Applied Voltage
Rotary motion is the output of which electrical output device? - ANSWER-Motor
Current is measured in units of __________. - ANSWER-Amps
What step should be taken to correctly measure the resistance of a resistor that is wired
in a circuit? - ANSWER-Disconnect one end of the resistor
The resistance provided by an inductor in an AC circuit is called __________. -
ANSWER-Inductive reactance
What does hertz stand for on a sine wave graph? - ANSWER-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? - ANSWER-0.9 Henrys
A common application of mutual inductance is found in a device called a __________. -
ANSWER-Transformer
What is the secondary voltage if the primary is 480VAC? (The primary coil have 300
turns and the secondary coil has 125 turns)* - ANSWER-200 VAC
Which of the following is not a component of a basic electrical circuit? - ANSWER-
Insulator
What is the thin insulator placed between the plates of a capacitor called? - ANSWER-
Dielectric
One of the effects a capacitor has in a DC circuit is that it will __________. - ANSWER-
Charge to a voltage equal to the source voltage
Capacitance is measured in __________. - ANSWER-Farads
What is a drawing showing electrical symbols and paths? - ANSWER-Schematic
, Current in a(n) __________ circuit is divided among the branches of the circuit. -
ANSWER-Parallel
When the wire or foil strip inside a fuse melts, the fuse is said to be _________. -
ANSWER-Blown
The potential difference between two points in a circuit is called __________. -
ANSWER-Voltage
To measure current through a component, the ammeter must be connected
__________ the component. - ANSWER-In series with
What creates an electric field and stores electricity? - ANSWER-Capacitor
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. - ANSWER-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 - ANSWER-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 - ANSWER-Low resistance to ground
In order to calculate the output voltage of a transformer, divide the input voltage by the
__________.*
Turns ratio
Resistance
Input current
Frequency - ANSWER-Turns ratio
What should you do before working on electrical equipment? - ANSWER-Preform a
lockout/tagout
What type of transformer is used to get two 60 volt lines from a 240 volt source? -
ANSWER-2:1 with center tap
AND ANSWERS 100% VERIFIED
A(n) __________ is used to measure resistance. - ANSWER-Ohmmeter
What is the total measurement of voltage over the power source called? - ANSWER-
Applied Voltage
Rotary motion is the output of which electrical output device? - ANSWER-Motor
Current is measured in units of __________. - ANSWER-Amps
What step should be taken to correctly measure the resistance of a resistor that is wired
in a circuit? - ANSWER-Disconnect one end of the resistor
The resistance provided by an inductor in an AC circuit is called __________. -
ANSWER-Inductive reactance
What does hertz stand for on a sine wave graph? - ANSWER-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? - ANSWER-0.9 Henrys
A common application of mutual inductance is found in a device called a __________. -
ANSWER-Transformer
What is the secondary voltage if the primary is 480VAC? (The primary coil have 300
turns and the secondary coil has 125 turns)* - ANSWER-200 VAC
Which of the following is not a component of a basic electrical circuit? - ANSWER-
Insulator
What is the thin insulator placed between the plates of a capacitor called? - ANSWER-
Dielectric
One of the effects a capacitor has in a DC circuit is that it will __________. - ANSWER-
Charge to a voltage equal to the source voltage
Capacitance is measured in __________. - ANSWER-Farads
What is a drawing showing electrical symbols and paths? - ANSWER-Schematic
, Current in a(n) __________ circuit is divided among the branches of the circuit. -
ANSWER-Parallel
When the wire or foil strip inside a fuse melts, the fuse is said to be _________. -
ANSWER-Blown
The potential difference between two points in a circuit is called __________. -
ANSWER-Voltage
To measure current through a component, the ammeter must be connected
__________ the component. - ANSWER-In series with
What creates an electric field and stores electricity? - ANSWER-Capacitor
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. - ANSWER-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 - ANSWER-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 - ANSWER-Low resistance to ground
In order to calculate the output voltage of a transformer, divide the input voltage by the
__________.*
Turns ratio
Resistance
Input current
Frequency - ANSWER-Turns ratio
What should you do before working on electrical equipment? - ANSWER-Preform a
lockout/tagout
What type of transformer is used to get two 60 volt lines from a 240 volt source? -
ANSWER-2:1 with center tap
