Κουίζ για Ηλεκτρική Ενέργεια (ATA 24)
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24 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the basic operating principle of an AC alternator?
Electromagnetic induction
Thermal induction
Mechanical induction
Electrostatic induction
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main advantage of static converters?
They require more maintenance
They produce less energy
They have moving parts
They are lighter and more compact
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of a transformer?
To measure electrical resistance
To change the voltage of electric current
To convert AC to DC
To store energy
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of overloading a circuit?
Increase in voltage
Decrease in resistance
Increase in current flow
Destruction of the circuit
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of an SCR?
To store energy
To control the flow of current
To measure voltage
To convert AC to DC
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main difference between primary and secondary cells?
Capacity
Output voltage
Chemical composition
Rechargeability
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of the GCU in an AC inverter?
To control the resistance
To regulate the voltage and frequency
To store energy
To measure the temperature
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