HAM Radio Study Guide questions with correct answers

What is a good way to guard against electrical shock at your station? CORRECT ANSWER All these answers are correct What is the impedance of the most commonly used coaxial cable in typical amateur radio installations? CORRECT ANSWER 50 ohms Which Q signal indicates that you are changing frequency? CORRECT ANSWER QRU When is an amateur station permitted to transmit without a control operator? CORRECT ANSWER Never Which of the following is an appropriate receive filter bandwidth to select in order to minimize noise and interference for SSB reception? CORRECT ANSWER 2400 Hz What is the component shown in the figure 9? (-//->) CORRECT ANSWER Variable resistor (know your symbols) What device increases the low-power output from a handheld transceiver? CORRECT ANSWER An RF Power amplifier What does the term "RIT" mean? CORRECT ANSWER Receiver Incremental Tuning