2026-2027 Exams Includes Frequently Tested Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
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1. An ohmmeter is used to measure the ?
a. amperage
b. direction of voltage flow
c. resistance
d. voltage - Correct Answer: c.resistance
2. ? leakage current is current that flows from areas on conductors where
insulation has been removed to allow electrical connections.
a. Capacitive
b. Conductive
c. Surface
d. Terminal - Correct Answer: c.Surface
3. Many test instruments include a ? in the current-measuring circuit to prevent
damage caused by excessive current.
a. bypass
b. circuit breaker
c. fuse
,d. relay - Correct Answer: c.fuse
4. When a 3-phase current unbalance exceeds ? , a test for voltage unbalance
should be performed.
a.3%
b.10%
c.20%
d.30% - Correct Answer: b.10%
5. Most digital multimeter displays include a(n) ? to show changes and trends in a
circuit.
a. analog scale
b. bar graph
c. diode test mode
d. MIN MAX mode - Correct Answer: b.bar graph
6. Voltage measurements using the ? on a digital multimeter are useful in
identifying low voltage conditions.
a. analog scale
b. bar graph
c. diode test mode
d. MIN/MAX mode - Correct Answer: d.MIN/MAX mode
7. *Clip-on ammeter tests should be taken during ?.
, a. normal daytime hours to get a true reading on load demand
b. the nighttime hours when the power usage is at the most constant demand
c. the summer months when the load is most demanding
d. the time of day when the load is considered at the highest peak - Correct
Answer: a. normal daytime hours to get a true reading on load demand
8. *When using test instruments, the main reason for the increase in the use of
digital electronic technology is ?.
a. far greater accuracy
b. greater measuring capability
c. safety
d. size and transportability - Correct Answer: b. greater measuring capability
9.*One problem with 3-phase voltage unbalances is that they cause ?.
a. excessive voltage to ground on the grounded conductor
b. high current unbalances
c. high resistance on the conductor with the largest voltage drop
d. overvoltage at the customer's meter - Correct Answer: b. high current
unbalances
10. *A test instrument that is used to test for insulation breakdown is the ?.
a. circuit analyzer
b. continuity tester
c. megohmmeter