Electrical Systems and Components

What is the relationship between voltage (V), current (I), and resistance (R) according to Ohm's Law?

• V = I × R

• V = I ÷ R

• V = R + I

• V = I² × R

Which type of electrical circuit has components connected so that current has only one path to follow?

• Parallel circuit

• Series circuit

• Combination circuit

• Integrated circuit

What is the total resistance of three 10Ω resistors connected in parallel?

• 30Ω

• 10Ω

• 3.33Ω

• 0.3Ω

Which component is used to temporarily store electrical energy in an electric field?

• Inductor

• Resistor

• Capacitor

• Transistor

What is the primary purpose of a fuse in an electrical circuit?

• To increase current

• To protect against overcurrent

• To store energy

• To regulate voltage

If a 12V battery supplies 2A of current to a circuit, what is the power consumed?

• 6 watts

• 10 watts

• 14 watts

• 24 watts

Which wiring diagram symbol represents a normally closed relay contact?

• A) ——/——

• B) ——//——

• C) ——|/|——

• D) ——|———

What does GFCI stand for in electrical safety?

• Ground Fault Circuit Interrupter

• General Function Control Interface

• Ground Force Current Indicator

• General Fault Control Instrument

In a three-phase AC power system, what is the phase angle difference between consecutive phases?

• 90°

• 120°

• 180°

• 240°

Which type of cable would be most appropriate for connecting a control panel to a motor in an industrial environment with electrical noise?

• Twisted pair

• Coaxial

• Shielded cable

• Ribbon cable