EVSE Day 5 – Electrician Exam Practice

EVSE Day 5

Parallel circuits are designed to provide multiple branches for current.

1 / 10

Parallel circuits have only one path for current to flow.

a. False

b. True

Ohm’s Law is represented by the formula V=IRV = IRV=IR.

2 / 10

What does Ohm's Law state?

a. Power is equal to voltage multiplied by current

b. Voltage is directly proportional to resistance

c. Current is directly proportional to voltage and inversely proportional to resistance

d. Resistance remains constant under all conditions

Voltage is sometimes referred to as "electric pressure" in a circuit.

3 / 10

What is voltage?

a. None of the above

b. The number of electrons in a circuit

c. The force that pushes current and causes flow in a circuit

d. The flow of charged particles like electrons

Electric current is measured in a unit that represents the flow of charge per second.

4 / 10

What is the basic unit of electric current?

a. Volt

b. Ampere

c. Watt

d. Joule

Safety practices aim to minimize the risk of electrical accidents and injuries.

5 / 10

Which of the following is NOT a common safety practice when working with electrical systems?

a. Using insulated tools

b. Working on live circuits whenever possible

c. Wearing personal protective equipment (PPE)

d. Lockout tagout procedures

This type of supply adjusts for connected devices.

6 / 10

Constant voltage power supplies maintain steady voltage under varying ________.

a. Resistances

b. Loads

c. Frequencies

d. Currents

Use Ohm’s Law (V=IRV = IRV=IR). If RRR is constant and VVV increases, what happens to III?

7 / 10

If a circuit has constant resistance and you increase the voltage, what happens to the current?

a. Current increases

b. Current stays the same

c. Current decreases

d. None of the above

The formula P=VIP = VIP=VI comes from Watts Law.

8 / 10

Watts Law helps to determine which relationship?

a. Frequency, voltage, and current

b. Power, voltage, and current

c. Voltage, resistance, and current

d. Resistance, capacitance, and power

Overloading a circuit involves connecting more devices than it can safely handle, regardless of the individual power draw.

9 / 10

You can safely overload a circuit by plugging in multiple devices as long as they are not drawing a lot of power.

a. False

b. True

Think about materials like rubber or glass.

10 / 10

Insulators allow the free flow of electrical current.

a. True

b. False

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