Test Your Basic Equipment Knowledge
Michael R. Kauffman · Biomedical Instrumentation & Technology · 2003
paper and pen to answer the questions below, and then grade yourself at the end. Good luck. 1. A Resistor is.... A) A component which resists A.C. current B) A component which resists D.C. current C) A component which resists A.C. Voltage D) A component which resists D.C. Voltage E) All of the above F) B and D Above G) A and B Above 2. A Basic Diode... A) Is used to pass current in one direction B) Can be used to amplify a signal C) Will be damaged if it is reverse biased D) None of the above E) A and C above 3. A Thermistor... A) Changes capacitance when temperature changes B) Changes resistance when temperature changes C) Cannot be used in A.C. circuits D) A and C above E) B and C above 4. Linear Amplification... A) Is often used in the final stages of R.F. transmitters B) Is required when reproducing clear audible information C) Is obtained with a class C amplifier D) All of the above E) A and B above 5. Voltage leads current in which of the following situations? A) In a resistive circuit B) In a capacitive circuit C) In an inductive circuit D) Never E) Voltage is always slightly ahead of current in a timing chart 6. What is the period time of a 10 KHz sine wave? A) 0.0001 seconds B) 0.001 seconds C) 0.0005 seconds D) 0.005 seconds 7. What does a local oscillator do in a radio circuit? A) Mixes the R.F. carrier and the I.F. signal to produce an audible frequency B) Beats with the changing R.F. signal to produce an audible frequency C) Mixes with the R.F. signal to produce the IF frequency D) None of the above 8. What does the Audio Amp do in a radio circuit? A) Amplifies the signal from the I.F. amplifier to produce sound in the speakers B) Amplify the signal from the Discriminator to produce sound in the speaker C) Amplify the signal from the R.F. amplifier section D) None of the above E) A and C above 9. What is the purpose of filament in a CRT? A) To illuminate when electrons strike it B) To control the current in the electron beam C) To heat up and allow the release of electrons D) To absorb static electricity surrounding the tube and short it to ground. E) None of the above. 10. What is the purpose of phosphor in a CRT? A) To illuminate when electrons strike it BMET RESOURCE FILE