FCC GROL Elements 1 and 3 Exam -2025/2026 |
verified Questions and Correct Answers |Grade A
(100% Correct Elaborations)
(3-1A1) The product of the readings of an AC voltmeter and AC ammeter is called:
Apparent power.
What is the basic unit of electrical power?
Watt.
(3-1A3) What is the term used to express the amount of electrical energy stored in an
electrostatic field?
Joules
(3-1A4) What device is used to store electrical energy in an electrostatic field?
Capacitor
(3-1A5) What formula would determine the inductive reactance of a coil if frequency and coil
inductance are
known?
XL = 2 f L
(3-1A6) What is the term for the out-of-phase power associated with inductors and capacitors?
1
, FCC GROL Elements 1 and 3 Exam -2025/2026 |
verified Questions and Correct Answers |Grade A
(100% Correct Elaborations)
. Reactive power.
(3-2A1) What determines the strength of the magnetic field around a conductor?
The amount of current.
(3-2A2) What will produce a magnetic field?
A current flowing through a conductor.
(3-2A3) When induced currents produce expanding magnetic fields around conductors in a
direction that opposes
the original magnetic field, this is known as:
. Lenz's law.
(3-2A4) The opposition to the creation of magnetic lines of force in a magnetic circuit is known
as:
Reluctance
(3-2A5) What is meant by the term "back EMF"?
A voltage that opposes the applied EMF.
2
, FCC GROL Elements 1 and 3 Exam -2025/2026 |
verified Questions and Correct Answers |Grade A
(100% Correct Elaborations)
(3-2A6) Permeability is defined as:
The ratio of magnetic flux density in a substance to the magnetizing force that produces it.
(3-3A1) What metal is usually employed as a sacrificial anode for corrosion control purposes?
Zinc bar
(3-3A2) What is the relative dielectric constant for air?
1
(3-3A3) Which metal object may be least affected by galvanic corrosion when submerged in
seawater?
Stainless steel propeller shaft.
(3-3A4) Skin effect is the phenomenon where:
A. RF current flows in a thin layer of the conductor, closer to the surface, as frequency increases.
(3-3A5) Corrosion resulting from electric current flow between dissimilar metals is called:
D. Galvanic corrosion.
3
, FCC GROL Elements 1 and 3 Exam -2025/2026 |
verified Questions and Correct Answers |Grade A
(100% Correct Elaborations)
(3-3A6) Which of these will be most useful for insulation at UHF frequencies?
B. Mica.
(3-4A1) What formula would calculate the total inductance of inductors in series?
B. LT = L1 + L2
(3-4A2) Good conductors with minimum resistance have what type of electrons?
D. Many free electrons.
(3-4A3) Which of the 4 groups of metals listed below are the best low-resistance conductors?
A. Gold, silver, and copper.
(3-4A4) What is the purpose of a bypass capacitor?
C. It removes alternating current by providing a low impedance path to ground.
(3-4A5) How would you calculate the total capacitance of three capacitors in parallel?
B. CT = C1 + C2 + C3.
4
verified Questions and Correct Answers |Grade A
(100% Correct Elaborations)
(3-1A1) The product of the readings of an AC voltmeter and AC ammeter is called:
Apparent power.
What is the basic unit of electrical power?
Watt.
(3-1A3) What is the term used to express the amount of electrical energy stored in an
electrostatic field?
Joules
(3-1A4) What device is used to store electrical energy in an electrostatic field?
Capacitor
(3-1A5) What formula would determine the inductive reactance of a coil if frequency and coil
inductance are
known?
XL = 2 f L
(3-1A6) What is the term for the out-of-phase power associated with inductors and capacitors?
1
, FCC GROL Elements 1 and 3 Exam -2025/2026 |
verified Questions and Correct Answers |Grade A
(100% Correct Elaborations)
. Reactive power.
(3-2A1) What determines the strength of the magnetic field around a conductor?
The amount of current.
(3-2A2) What will produce a magnetic field?
A current flowing through a conductor.
(3-2A3) When induced currents produce expanding magnetic fields around conductors in a
direction that opposes
the original magnetic field, this is known as:
. Lenz's law.
(3-2A4) The opposition to the creation of magnetic lines of force in a magnetic circuit is known
as:
Reluctance
(3-2A5) What is meant by the term "back EMF"?
A voltage that opposes the applied EMF.
2
, FCC GROL Elements 1 and 3 Exam -2025/2026 |
verified Questions and Correct Answers |Grade A
(100% Correct Elaborations)
(3-2A6) Permeability is defined as:
The ratio of magnetic flux density in a substance to the magnetizing force that produces it.
(3-3A1) What metal is usually employed as a sacrificial anode for corrosion control purposes?
Zinc bar
(3-3A2) What is the relative dielectric constant for air?
1
(3-3A3) Which metal object may be least affected by galvanic corrosion when submerged in
seawater?
Stainless steel propeller shaft.
(3-3A4) Skin effect is the phenomenon where:
A. RF current flows in a thin layer of the conductor, closer to the surface, as frequency increases.
(3-3A5) Corrosion resulting from electric current flow between dissimilar metals is called:
D. Galvanic corrosion.
3
, FCC GROL Elements 1 and 3 Exam -2025/2026 |
verified Questions and Correct Answers |Grade A
(100% Correct Elaborations)
(3-3A6) Which of these will be most useful for insulation at UHF frequencies?
B. Mica.
(3-4A1) What formula would calculate the total inductance of inductors in series?
B. LT = L1 + L2
(3-4A2) Good conductors with minimum resistance have what type of electrons?
D. Many free electrons.
(3-4A3) Which of the 4 groups of metals listed below are the best low-resistance conductors?
A. Gold, silver, and copper.
(3-4A4) What is the purpose of a bypass capacitor?
C. It removes alternating current by providing a low impedance path to ground.
(3-4A5) How would you calculate the total capacitance of three capacitors in parallel?
B. CT = C1 + C2 + C3.
4
