T0A

T0A[]

The T0A section covers AC power circuits; hazardous voltages, fuses and circuit breakers, grounding, lightning protection, battery safety, electrical code.

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This is not correct info guys don't====T0A01==== waste your precious time 🙁

Which is a commonly accepted value for the lowest voltage that can cause a dangerous electric shock?: 30 volts

T0A02

How does current flowing through the body cause a health hazard?: By heating tissue; It disrupts the electrical functions of cells; It causes involuntary muscle contractions; All of these choices are correct

T0A03

What is connected to the green wire in a three-wire electrical AC plug?: Safety ground

T0A04

What is the purpose of a fuse in an electrical circuit?: To interrupt power in case of overload

T0A05

Why is it unwise to install a 20-ampere fuse in the place of a 5-ampere fuse?: Excessive current could cause a fire

T0A06

What is a good way to guard against electrical shock at your station?: Use three-wire cords and plugs for all AC powered equipment; Connect all AC powered station equipment to a common safety ground; Use a circuit protected by a ground-fault interrupter; All of these choices are correct

T0A07

Which of these precautions should be taken when installing devices for lightning protection in a coaxial cable feedline?: Ground all of the protectors to a common plate which is in turn connected to an external ground

T0A08

What is one way to recharge a 12-volt lead-acid station battery if the commercial power is out?: Connect the battery to a car's battery and run the engine

T0A09

What kind of hazard is presented by a conventional 12-volt storage battery?: Explosive gas can collect if not properly vented

T0A10

What can happen if a lead-acid storage battery is charged or discharged too quickly?: The battery could overheat and give off flammable gas or explode

T0A11

Which of the following is good practice when installing ground wires on a tower for lightning protection?: Ensure that connections are short and direct

T0A12

What kind of hazard might exist in a power supply when it is turned off and disconnected?: You might receive an electric shock from stored charge in large capacitors

T0A13

What safety equipment should always be included in home-built equipment that is powered from 120V AC power circuits?: A fuse or circuit breaker in series with the AC "hot" conductor

T0A

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