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Ham Radio Technician Licensing Class Test | Questions & Answers (100% Verified)

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Ham Radio Technician Licensing Class Test | Questions & Answers (100% Verified) Ham Radio Technician Licensing Class Test | Questions & Answers (100% Verified) T0A01 Which of the following is a safety hazard of a 12-volt storage battery? - ANSWER - B. Shorting the terminals can cause burns, fire, or an explosion T0A02 How does current flowing through the body cause a health hazard? - ANSWER - (D) All of these choices are correct (heats tissue, disrupts electrical functions of the cells & involuntary muscle contractions) T0A03 What is connected to the green wire in a three-wire electrical AC plug? - ANSWER - (C) Safety Ground T0A04 What is the purpose of a fuse in an electrical circuit? - ANSWER - (B) 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? - ANSWER - (C) Excessive current could cause a fire T0A06 What is a good way to guard against electrical shock at your station? - ANSWER - (D) All these choices are correct (use 3-wire AC cords, connect to a ground & use a ground-fault interrupter) T0A07 Which of these precautions should be taken when installing devices for lightning protection in a coaxial cable feedline? - ANSWER - (D) Ground all the protectors to a common plate which in turn is connected to an external ground T0A08 What safety equipment should always be included in home-built equipment that is powered from 120V AC power circuits? - ANSWER - A. A fuse or circuit breaker in series with the AC hot conductor T0A09 What kind of hazard is presented by a conventional 12-volt storage battery? - ANSWER - (C) Explosive gas can collect if not properly vented T0A10 What can happen if a lead-acid storage battery is charged or discharged too quickly? - ANSWER - (A) The battery could overheat and give off flammable gas or explode. T0A11 What kind of hazard might exist in a power supply when it is turned off and disconnected? - ANSWER - D. You might receive an electric shock from the charged stored in large capacitors

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