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Master the Airwaves: GROL Certification Quiz

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Master the Airwaves: GROL Certification Quiz

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Master the Airwaves: GROL Certification Quiz

  1. Which unit is used to measure electrical current?
    A) Ohm
    B) Volt
    C) Ampere
    D) Watt
  2. Match the electrical component with its primary function:
    Component
    1. Capacitor
    2. Inductor
    3. Diode
    4. Resistor    		 Function
    a. Restricts current flow
    b. Stores energy in magnetic field
    c. Allows current in one direction only
    d. Stores energy in electric field

    Your matches:
    1 =
    2 =
    3 =
    4 =

  3. True or False: The Ohm is the unit of electrical resistance.
    True
    False
  4. Which instrument is primarily used to measure voltage in a circuit?
  5. Fill in the blank: Ohm’s Law states that the current (I) equals ______ divided by resistance (R).
  6. Which type of circuit has only one path for current?
    A) Series
    B) Parallel
    C) Complex
    D) Bridge
  7. In a three-phase system, what is the most common frequency used in aircraft applications?
    A) 50 Hz
    B) 60 Hz
    C) 400 Hz
    D) 1000 Hz
  8. Drop-down: The process of converting AC to DC is called
  9. Which safety device protects against excessive current by opening the circuit?
    A) Capacitor
    B) Fuse
    C) Inductor
    D) Resistor
  10. Fill in the blank: The basic unit of capacitance is the ______.

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Quiz Answers

  1. C) Ampere – The ampere is the standard unit for measuring electrical current.
  2. 1-d (Capacitor: stores energy in electric field), 2-b (Inductor: stores energy in magnetic field), 3-c (Diode: one-way current), 4-a (Resistor: restricts current). These match core electronic components with their essential roles.
  3. True – Ohm is the unit of resistance.
  4. Voltmeter – A voltmeter is designed to measure voltage.
  5. Voltage (V) – Ohm’s Law: I = V / R (current equals voltage divided by resistance).
  6. A) Series – A series circuit offers only one path for current.
  7. C) 400 Hz – Aircraft applications commonly use 400 Hz for AC power systems.
  8. Rectification – Rectification is the conversion of AC to DC, crucial in avionics systems.
  9. B) Fuse – A fuse protects circuits by breaking (opening) when excessive current flows.
  10. Farad – Capacitance is measured in farads, the fundamental unit.

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