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
1
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
1
