🔍 Key Concepts
• Normal indications of a properly working VHF receiver (what you should typically see and hear when it’s healthy)
• The difference between expected circuit behavior (voltage drops, signals, clicks) and fault indications
• Basic role of audio stages vs. RF/IF stages in a receiver
💭 Think About
• Ask yourself: Which option describes something that is clearly abnormal for a working VHF receiver, rather than a normal test indication?
• Which choices sound like expected electrical behaviors (voltage drop across a resistor, audio signal present, meter click on a speaker) rather than a clear sign of trouble?
• Consider the purpose of each stage mentioned (bias circuit, loudspeaker, IF amplifier, audio amplifier). Which stage, if behaving as described, would most clearly suggest the receiver is not functioning correctly?
✅ Before You Answer
• For each choice, decide: is this more likely a normal test result or an indication of a fault?
• Think about whether hearing something when testing a speaker is good or bad, and whether seeing a voltage drop across a resistor is usually expected.
• Check which option describes a condition that suggests no proper signal or incorrect bias, rather than evidence that the circuit is passing signal.