Saca electrical 201 Questions and
Answers.
What should you do before working on electrical equipment? - Answer Lock out tag
out(LOTO)
What is normally not measured on a digital multi meter? - Answer Frequency
Main line current formula in parallel - Answer 1/ 1/R1+1/R2+1/R3
What is indicated when voltage is measured across the contacts of a switch - Answer Its
open
What type of transformer is used to get two 120 volt lines from a 480 volt source? - Answer
4:1 center tap
What is the effect of a capacitor in a DC circuit in a parallel circuit? - Answer Aids voltage
change
What is the immediate danger of unsecured electrical cords? - Answer Trip hazard
Why does most electrical utility power go throughout the world use AC instead of DC? - Answer
AC is better for transmitting longer distances and it is cheaper to generate.
When should a fuse be replaced? - Answer When there is no continuity
What type of voltage divider is normally used when the load resistance is relatively low? -
Answer Loaded voltage divider
What action should be taken when a circuit breaker trips? - Answer Off then on
If you add a third capacitor in series with two other capacitors, what would happen to total
capacitance and current. - Answer The current and capacitance would decrease
Where are the meter leads placed in a circuit to measure current in a single component or
device. - Answer In series
Answers.
What should you do before working on electrical equipment? - Answer Lock out tag
out(LOTO)
What is normally not measured on a digital multi meter? - Answer Frequency
Main line current formula in parallel - Answer 1/ 1/R1+1/R2+1/R3
What is indicated when voltage is measured across the contacts of a switch - Answer Its
open
What type of transformer is used to get two 120 volt lines from a 480 volt source? - Answer
4:1 center tap
What is the effect of a capacitor in a DC circuit in a parallel circuit? - Answer Aids voltage
change
What is the immediate danger of unsecured electrical cords? - Answer Trip hazard
Why does most electrical utility power go throughout the world use AC instead of DC? - Answer
AC is better for transmitting longer distances and it is cheaper to generate.
When should a fuse be replaced? - Answer When there is no continuity
What type of voltage divider is normally used when the load resistance is relatively low? -
Answer Loaded voltage divider
What action should be taken when a circuit breaker trips? - Answer Off then on
If you add a third capacitor in series with two other capacitors, what would happen to total
capacitance and current. - Answer The current and capacitance would decrease
Where are the meter leads placed in a circuit to measure current in a single component or
device. - Answer In series
