74 lines
2.3 KiB
Markdown
74 lines
2.3 KiB
Markdown
T7D – Using basic test instruments: voltmeter, ammeter, and ohmmeter; Soldering
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- [[T7D01]] (B)
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Which instrument would you use to measure electric potential? #card
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- A. An ammeter
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- B. A voltmeter
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- C. A wavemeter
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- D. An ohmmeter
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- [[T7D02]] (B)
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How is a voltmeter connected to a component to measure applied voltage? #card
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- A. In series
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- B. In parallel
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- C. In quadrature
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- D. In phase
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- [[T7D03]] (A)
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When configured to measure current, how is a multimeter connected to a component? #card
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- A. In series
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- B. In parallel
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- C. In quadrature
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- D. In phase
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- [[T7D04]] (D)
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Which instrument is used to measure electric current? #card
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- A. An ohmmeter
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- B. An electrometer
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- C. A voltmeter
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- D. An ammeter
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- [[T7D05]] Question Removed (section not renumbered)
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- [[T7D06]] (C)
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Which of the following can damage a multimeter? #card
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- A. Attempting to measure resistance using the voltage setting
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- B. Failing to connect one of the probes to ground
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- C. Attempting to measure voltage when using the resistance setting
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- D. Not allowing it to warm up properly
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- [[T7D07]] (C)
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Which of the following measurements are made using a multimeter? #card
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- A. Signal strength and noise
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- B. Impedance and reactance
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- C. Voltage and resistance
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- D. All these choices are correct
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- [[T7D08]] (A)
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Which of the following types of solder should not be used for radio and electronic applications? #card
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- A. Acid-core solder
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- B. Lead-tin solder
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- C. Rosin-core solder
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- D. Tin-copper solder
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- [[T7D09]] (C)
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What is the characteristic appearance of a cold tin-lead solder joint? #card
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- A. Dark black spots
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- B. A bright or shiny surface
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- C. A rough or lumpy surface
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- D. Excessive solder
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- [[T7D10]] (A)
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What reading indicates that an ohmmeter is connected across a large, discharged capacitor? #card
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- A. Increasing resistance with time
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- B. Decreasing resistance with time
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- C. Steady full-scale reading
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- D. Alternating between open and short circuit
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- [[T7D11]] (B)
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Which of the following precautions should be taken when measuring in-circuit resistance with an ohmmeter? #card
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- A. Ensure that the applied voltages are correct
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- B. Ensure that the circuit is not powered
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- C. Ensure that the circuit is grounded
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- D. Ensure that the circuit is operating at the correct frequency
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