ac/dc saca study guide questions with verified answers
A circuit contains three equal value resistors in series. What will a technician do to
calculate the total resistance? Ans✓✓✓-Add the values together
A coil is a_________? Ans✓✓✓-Output
A common source of DC voltage is what? Ans✓✓✓-A battery
A fatal current can be as small as: Ans✓✓✓-0.1A
A motor is a type of ? Ans✓✓✓-Load
A series circuit flows in_______direction? Ans✓✓✓-One
A series circuit has a total of three resistors, 5 ohms, 3 ohms, and 16 ohms. What
is the Rt of this circuit? Ans✓✓✓-24 ohms
A series circuit has three resistors in the circuit and another resistor is added for a
total of four resistors. What happens to the current in the circuit? Ans✓✓✓-
Current remains the same
A series circuit has three resistors. The voltage measured across each resistor is
4vdc, 8vdc, and 12vdc. What is the Et of this circuit? Ans✓✓✓-24
A switch is tested in a circuit and is reading 120 watts. What do we know about
the switch? Ans✓✓✓-Switch is open
, A voltmeter is connected in a circuit by? Ans✓✓✓-Placing the test leads in
parallel with the circuit device
A voltmeter is reading voltage across a normally closed push button. What does
this tell us about the state of the contacts on the switch? Ans✓✓✓-They are
open
An ohmmeter is reading total circuit resistance reads 0 ohms when all branches
are connected and reads 200 ohms when a branch is disconnected. What
condition exists? Ans✓✓✓-There is a short in the disconnected branch
How are transformers sized? Ans✓✓✓-Volt amps
How many degrees apart are the phases of a balanced three phase system?
Ans✓✓✓-120
How many seconds will it take in a RC circuit to completely charge if the RC has a
time constant of .06 seconds? Ans✓✓✓-0.3
If Parallel paths are not disconnected, an ohmmeter placed across parallel paths
will read? Ans✓✓✓-Lower in all circuits
In a parallel circuit, total current is equal to? Ans✓✓✓-The sum of the individual
branch circuit current
A circuit contains three equal value resistors in series. What will a technician do to
calculate the total resistance? Ans✓✓✓-Add the values together
A coil is a_________? Ans✓✓✓-Output
A common source of DC voltage is what? Ans✓✓✓-A battery
A fatal current can be as small as: Ans✓✓✓-0.1A
A motor is a type of ? Ans✓✓✓-Load
A series circuit flows in_______direction? Ans✓✓✓-One
A series circuit has a total of three resistors, 5 ohms, 3 ohms, and 16 ohms. What
is the Rt of this circuit? Ans✓✓✓-24 ohms
A series circuit has three resistors in the circuit and another resistor is added for a
total of four resistors. What happens to the current in the circuit? Ans✓✓✓-
Current remains the same
A series circuit has three resistors. The voltage measured across each resistor is
4vdc, 8vdc, and 12vdc. What is the Et of this circuit? Ans✓✓✓-24
A switch is tested in a circuit and is reading 120 watts. What do we know about
the switch? Ans✓✓✓-Switch is open
, A voltmeter is connected in a circuit by? Ans✓✓✓-Placing the test leads in
parallel with the circuit device
A voltmeter is reading voltage across a normally closed push button. What does
this tell us about the state of the contacts on the switch? Ans✓✓✓-They are
open
An ohmmeter is reading total circuit resistance reads 0 ohms when all branches
are connected and reads 200 ohms when a branch is disconnected. What
condition exists? Ans✓✓✓-There is a short in the disconnected branch
How are transformers sized? Ans✓✓✓-Volt amps
How many degrees apart are the phases of a balanced three phase system?
Ans✓✓✓-120
How many seconds will it take in a RC circuit to completely charge if the RC has a
time constant of .06 seconds? Ans✓✓✓-0.3
If Parallel paths are not disconnected, an ohmmeter placed across parallel paths
will read? Ans✓✓✓-Lower in all circuits
In a parallel circuit, total current is equal to? Ans✓✓✓-The sum of the individual
branch circuit current
