Chapter 9 Basic Electrical Tests 189 Copyright by Goodheart-Willcox Co., Inc. 1. Technician A says a basic circuit problem can be caused by something in the circuit that increases voltage. Technician B says a basic circuit problem can be caused by something in the circuit that decreases resistance. Who is right? (A) A only. (B) B only. (C) Both A and B. (D) Neither A nor B. 2. An automobile is brought into the shop with an engine electrical problem. Technician A says the fi rst step to electrical diagnosis is to verify the symptoms and the problem. Technician B says electrical diagnosis involves using a logical sequence of steps to fi nd the source of the problem. Who is right? (A) A only. (B) B only. (C) Both A and B. (D) Neither A nor B. 3. More than one component in a particular automotive electric circuit is not working. Technician A starts testing the circuit at the power source. Technician B starts testing the circuit at its load. Who is right? (A) A only. (B) B only. (C) Both A and B. (D) Neither A nor B. 4. Th ere is an open in an automobile’s headlight circuit. Technician A says this problem can be caused by a blown fuse. Technician B says the problem may be caused by burned switch contacts. Who is right? (A) A only. (B) B only. (C) Both A and B. (D) Neither A nor B. 5. Technician A says an open will always stop current in a circuit. Technician B says high circuit resistance will normally reduce current in a circuit. Who is right? (A) A only. (B) B only. (C) Both A and B. (D) Neither A nor B. 6. Technician A says a short circuit can be caused by a conductor touching ground. Technician B says a short circuit can be caused by a conductor touching another conductor. Who is right? (A) A only. (B) B only. (C) Both A and B. (D) Neither A nor B. 7. Technician A says intermittent problems occur only under certain conditions. Technician B says intermittent problems are oft en caused by poor electrical connections. Who is right? (A) A only. (B) B only. (C) Both A and B. (D) Neither A nor B. 8. A vehicle keeps blowing its fuse to the lighting system. Technician A says that a larger amp fuse might correct the trouble quickly and easily. Technician B says that installing a larger fuse could cause a serious electrical fi re. Who is right? (A) A only. (B) B only. (C) Both A and B. (D) Neither A nor B. 9. Th e current in an automotive taillight circuit needs to be checked. Technician A connects a conventional ammeter in parallel with the circuit being tested. Technician B connects a conventional voltmeter in series with the circuit being tested. Who is right? (A) A only. (B) B only. (C) Both A and B. (D) Neither A nor B. 10. A particular diode has a reading of infi nite ohms in both directions. Technician A says this indicates the diode is in good condition. Technician B says this indicates that the diode has an internal short. Who is right? (A) A only. (B) B only. (C) Both A and B. (D) Neither A nor B. ASE-Type Questions—Chapter 9