Grundlagen der Elektrotechnik für Kfz-Mechatroniker/innen: Online-Quiz

Question 1

What is the unit of measurement for electrical current?

Accepted Answer

Ampere (A)

Answer

Ohm (Ω)

Answer

Volt (V)

Question 2

Which of the following correctly describes the relationship between voltage, current, and resistance?

Accepted Answer

Voltage is directly proportional to both current and resistance.

Answer

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

Answer

Resistance is directly proportional to voltage and inversely proportional to current.

Question 3

A circuit with high resistance will have a _____ current flow.

Accepted Answer

low

Answer

high

Answer

constant

Question 4

In a series circuit, the _____ is the same across all components.

Accepted Answer

current

Answer

voltage

Answer

resistance

Answer

power

Question 5

Which of the following is an example of a parallel circuit?

Accepted Answer

Multiple light bulbs connected to a single power source.

Answer

A simple circuit with a battery, a switch, and a light bulb.

Answer

A string of Christmas lights connected end-to-end.

Question 6

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

Accepted Answer

To protect the circuit from overcurrents.

Answer

To regulate the flow of current.

Answer

To increase the voltage in the circuit.

Question 7

A circuit breaker is designed to _____ when an overcurrent occurs.

Accepted Answer

interrupt the flow of electricity

Answer

convert DC current to AC current

Answer

decrease the resistance

Answer

increase the voltage

Question 8

Which of the following materials is a good conductor of electricity?

Accepted Answer

Copper

Answer

Rubber

Answer

Plastic

Answer

Wood

Question 9

A car battery is a type of _____.

Accepted Answer

DC power source

Answer

transformer

Answer

AC power source

Answer

resistor

Question 10

Which of the following electrical components is primarily used to store electrical energy?

Accepted Answer

Capacitor

Answer

Transistor

Answer

Resistor

Answer

Inductor

Question 11

What is the unit of measurement for electrical current?

Accepted Answer

Ampere (A)

Answer

Watt (W)

Answer

Volt (V)

Answer

Ohm (Ω)

Question 12

Which of the following best describes voltage?

Accepted Answer

The electrical pressure that pushes electrons through a circuit

Answer

The opposition to the flow of electric current

Answer

The rate of flow of electric charge

Question 13

What happens to the current in a circuit if the resistance is increased, assuming the voltage remains constant?

Accepted Answer

The current decreases

Answer

The current reverses direction

Answer

The current increases

Answer

The current stays the same

Question 14

Which component is used to store electrical energy?

Accepted Answer

Capacitor

Answer

Resistor

Answer

Transistor

Answer

Diode

Question 15

If a circuit has a voltage of 12V and a resistance of 4Ω, what is the current flowing through the circuit?

Accepted Answer

3A

Answer

0.33A

Answer

48A

Answer

16A

Question 16

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

Accepted Answer

To protect the circuit from excessive current

Answer

To convert AC current to DC current

Answer

To store electrical energy

Answer

To increase the resistance of the circuit

Question 17

What happens to the total resistance in a parallel circuit when more resistors are added?

Accepted Answer

The total resistance decreases

Answer

The total resistance increases

Answer

The total resistance stays the same

Question 18

Which of these materials is NOT a good conductor of electricity?

Accepted Answer

Rubber

Answer

Aluminum

Answer

Gold

Answer

Copper

Question 19

What is the SI unit of measurement for electrical power?

Accepted Answer

Watt (W)

Answer

Ampere (A)

Answer

Volt (V)

Answer

Joule (J)

Question 20

In welcher Einheit wird Spannung gemessen?

Accepted Answer

Volt

Answer

Ohm

Answer

Ampere

Answer

Newton

Question 21

Wovon hängt der Widerstand eines Leiters ab?

Accepted Answer

Material, Länge und Querschnittsfläche

Answer

Temperatur und Druck

Answer

Spannung und Strom

Question 22

Welche Aussage über elektrischen Strom ist richtig?

Accepted Answer

Er fließt immer von positivem zu negativem Pol.

Answer

Er kann nur in Metallleitern fließen.

Answer

Er ist immer Wechselstrom.

Answer

Er wird durch Spannung und Widerstand bestimmt.

Question 23

Welche Funktion hat eine Sicherung in einem Stromkreis?

Accepted Answer

Überstrom zu unterbrechen und den Stromkreis zu schützen.

Answer

Den Widerstand zu verringern

Answer

Die Spannung zu regulieren

Question 24

Welche der folgenden Schaltungen ist eine Parallelschaltung?

Accepted Answer

Schaltung, bei der die Strompfade parallel zueinander sind und sich nicht treffen.

Answer

Schaltung, bei der die Strompfade gemischt sind und sich sowohl parallel als auch in Reihe treffen.

Answer

Schaltung, bei der die Strompfade in Reihe geschaltet sind und sich abwechselnd treffen.

Question 25

Wie lautet die Spannung in einer Parallelschaltung?

Accepted Answer

Die Spannung ist an jedem angeschlossenen Element gleich.

Answer

Die Spannung ist geringer als an der Quelle.

Answer

Die Spannung ist an jedem angeschlossenen Element unterschiedlich.

Question 26

Welche Formel beschreibt das Ohmsche Gesetz?

Accepted Answer

Spannung = Strom x Widerstand

Answer

Leistung = Spannung x Strom

Answer

Widerstand = Spannung x Strom

Answer

Strom = Spannung x Widerstand

Question 27

Was ist die Einheit der elektrischen Leistung?

Accepted Answer

Watt

Answer

Volt

Answer

Ampere

Answer

Ohm

Question 28

Welche der folgenden Größen ist eine intensive Größe?

Accepted Answer

Temperatur

Answer

Volumen

Answer

Masse

Answer

Arbeit

Question 29

Was versteht man unter elektrischer Kapazität?

Accepted Answer

Fähigkeit eines Objekts, elektrische Ladung zu speichern.

Answer

Fähigkeit eines Objekts, magnetische Energie zu speichern.

Answer

Fähigkeit eines Objekts, elektrischen Strom zu leiten.