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Electrotehnica-SEM_OEM2

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About this collection

The ANR bank contains many sets with original names and codes, including navigation, safety and equipment topics. Select a module by name or use question search.

“ANR — Electrotehnica-SEM_OEM2” contains 255 questions across 14 collections.

Learning

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Sample questions and answers

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The current flow in a branch circuit is to be checked to determine if it is within the rated capacity of the circuit. The instrument best suited for this test would be:

One correct answer

  • a multimeter.
  • a clip-on ammeter✓ Correct answer
  • a neon test light.
  • either b or c
A fuse is used to:

One correct answer

  • protect circuit wiring and equipment.
  • allow only currents within safe limits to flow.
  • automatically open the circuit when a higher current flows.
  • all of these.✓ Correct answer
What is the bandwidth of a circuit that is resonant at 470 kHz and has a Q of 90?

One correct answer

  • 1.338 Hz
  • 5.2 kHz✓ Correct answer
  • 90 kHz
  • 470 kHz
An isolation transformer:

One correct answer

  • isolates its load from the power distribution system
  • has equal primary and secondary voltages
  • is a type of power transformer
  • all of the above✓ Correct answer
Which of these would most likely be used to match a 4- speaker to a 400-- amplifier output?

One correct answer

  • audio impedance-matching resistor✓ Correct answer
  • IF transformer
  • current transformer
  • auto transformer

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