Ase electrical and electronics T6 Exam Questions and Answers

Ase electrical and electronics T6 Exam Questions and Answers 1. A technician needs to check for voltage in a non-solid state electrical circuit. Technician A says a 12- volt test light can be used by attaching one lead to a known good voltage source, then probing various points along the circuit. Technician B says one lead of the 12-volt test light should be grounded, and the other used to probe various points along the circuit. Who is right? - Ans:-The correct answer is B. A 12-volt test light is used to check for voltage. One lead must therefore be grounded before probing test points 2. Technician A says an ohmmeter can be used instead of a self-powered test light when checking continuity. Technician B says a multimeter set to ohms can be used to back-probe for voltage. Who is right? - Ans:-The correct answer is A. An ohmmeter, like a self-powered test light, can be used to check for continuity through a circuit. Since both have their own power sources, the circuits being tested must be unpowered. A plain 12-volt test light or multimeter set to volts is used to check for voltage already in the circuit. 3. In the previous circuit, the light bulb will not light. The fuse is good, and there is voltage at point F. With the switch closed, there is no voltage at point G. What is the likely cause? A. There is a bad ground at point J. ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 2/9 B. The battery terminals are loose. C. The bulb is bad. D. The switch or its connection is bad. - Ans:-The correct answer is D. There is voltage on one side of the switch. With the switch closed, there should be voltage at the other side as well. If not, the switch or its connector is not conducting current 4. In order to bench test the switch in this circuit, a technician would use: A. a test light B. a voltmeter C. a self-powered test light D. an ammeter - Ans:-The correct answer is C. With the switch removed from the circuit, there is no way to check for voltage or current. A 12-volt test light, voltmeter and ammeter will not work. With the switch closed, continuity could be checked with a self-powered test light or ohmmeter. 5. With the switch in the circuit closed, there is voltage at point H, but the light still doesn't work, Technician A says it could be a bad bulb. Technician B says it could be a bad ground. Who is right? - Ans:-The correct answer is C, both technicians are right. If there is voltage available at the bulb and it doesn't light, either the light isn't grounded or the bulb is burned out ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 3/9 6. It you concluded that the bulb in this circuit was not grounded, how could you check for a break in the ground wire? A. attach a 12-volt test light or voltmeter to points G and H B. attach a self-powered test light or ohmmeter to points G and H C. attach a 12-volt test light or voltmeter to points I and J D. attach a self-powered test light or ohmmeter to points I and J - Ans:-The correct answer is D. To check for continuity to ground, a self-powered test light or ohmmeter should be used between point I at the light bulb and point J or ground 7. Same circuit, new symptoms: the light doesn't work and the fuse is blown. You replace the fuse, but as soon as you attempt to operate the circuit, the new fuse blows. What could be the problem? A. There is a short to ground. B. The fuse is too low an amperage rating. C. both A and B D. neither A or B - Ans:-The correct answer is C. Either a short or a fuse of improper rating for the application will blow the fuse when the circuit is operated. In either case, there is too much current flow for the fuse to handle ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 4/9 8. In the previous example, the fault is a short to ground. Technician A says it must be between points G and H. Technician B says it could be between points E and H. Who is right? - Ans:-The correct answer is A. Since the fuse only blows when the switch is closed, the short must be in the switch, at the light bulb or in the wire between points G and H. If the short were before the switch, the new fuse would have blown the moment it was installed 9. Technician A says the two most common types of circuit breakers are thermal and non-conductive. Technician B says all circuit breakers can be manually reset. Who is right? - Ans:-The correct answer is D, neither is right. The two most common types of circuit breakers are called thermal and magnetic. Thermal circuit breakers work by reaction to heat and cannot be manually reset. They must cool down to allow the bimetal strip to return to its normal position, closing the circuit. Magnetic circuit breakers use an electromagnet to trip the circuit breaker switch. Unlike the thermal circuit breaker, the magnetic circuit breaker can be manually reset 10. In the charging system shown above, the meter reading will show: A. charging output voltage B. indicator light operating voltage C. charging circuit voltage drop ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 5/9 D. ignition switch voltage drop - Ans:-The correct answer is C. Whenever a voltmeter is connected across two points where voltage should be present, it looks for the difference or drop in voltage between the two points 11. Fiber optics tranamit light along great distances by using which of the following? A. glass B. semi-insulated wire C light emitting diodes D. metalic conductors - Ans:-The correct answer is A. Fiber optic cable is made up of thousands of tiny, flexible glass strands, which carry light reflections along the inner c