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ISA Utility Specialist (Ch. 5: Electrical Knowledge) 2024/2025 already graded A+ $12.99   Add to cart

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ISA Utility Specialist (Ch. 5: Electrical Knowledge) 2024/2025 already graded A+

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  • ISA Utility Specialist

ISA Utility Specialist (Ch. 5: Electrical Knowledge) 2024/2025 already graded A+

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  • January 15, 2024
  • 7
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers
  • isa utility specialist
  • ISA Utility Specialist
  • ISA Utility Specialist
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Ashley96
ISA Utility Specialist (Ch. 5: Electrical
Knowledge)

What is a volt? - ANSa unit of electrical force

Electrical resistance determines how much __________ is required to move electricity along a
conductor and is measured in __________. - ANSenergy;
ohms

A conductor carrying more than __________ volts would be considered a NERC line. -
ANS200,000

2 examples of protective equipment: - ANScircuit breakers
lightning receptors

An energized wire or conductor in a circuit is also known as a __________. - ANSphase

True or False?
Guy wires are intended to help support poles but may become unintentionally energized. -
ANStrue

A __________ is similar to a fuse or cutout, but it resets after a predetermined time period. -
ANSre-closer

Minimum working distances for qualified line-clearance arborists are specified in the
__________ safety standard. - ANSANSI Z133

When installing underground conductors, __________ should be used in tree root protection
zones. - ANStunneling

Distribution transformers typically __________ primary circuit voltage for the end user. -
ANSreduce

Amp: - ANSthe measure of electrical current

Service lines and secondary distribution lines usually carry voltage between
__________-__________ volts. - ANS120-240

When a tree contacts one electrical conductor, it may cause a __________-to-__________
fault. - ANSphase-ground fault

, The minimum approach distance for non-qualified line clearance personnel from energized
conductors 50 kV and less: - ANS10 feet

The condition that allows electricity to flow from one object to another is called: - ANSpotential

What is a Watt? - ANSa measure of electrical power

A phase-to-phase fault occurs when there is contact between: - ANStwo or more energized
conductors

If the coating on a weatherproofed conductor falls off, the conductor will often __________. -
ANSdeteriorate

Ohm's Law describes the relationship between: - ANSvoltage, current, & resistance

Formula for Ohm's Law: - ANSVolts = Amps x Resistance
(V = I x R)

Formula for power: - ANSPower = Volts x Current
(P = V x I)

A __________ is another name for a generating plant, and is the source of most power in the
U.S. The most common sources for this power are __________ __________, __________ or
__________ turbines, & __________ __________. - ANSpowerhouse;
fossil fuels, wind or water turbines, & nuclear reactors

Tree-caused physical damage to conductors, electrical equipment, and/or supporting structures
is an example of a __________ failure. - ANSmechanical

The most common type of wire used today is an aluminum wire with a steel reinforced core.
This wire is known as: - ANSACSR (Aluminum Conductor Steel-core Reinforced)

Voltage Ranges:
Extra-high transmission lines: __________-__________ volts
Transmission lines: __________-__________ volts
Subtransmission lines: __________-__________ volts
Distribution lines: __________-__________ volts - ANS345,000-765,000 volts
115,000-230,000 volts
23,000-115,000 volts
2,400-23,000 volts

The voltage between the feet of a person standing near an energized, grounded object: -
ANSstep-potential

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