DPV10642 QUIZ

What is the purpose of a transformer?

• To control voltage fluctuations

• To generate electricity

• To transfer electrical energy

• To store electrical energy

What are the three general categories of core material in a transformer?

• Steel, Titanium, Nickel

• Plastic, Glass, Aluminum

• Copper, Silver, Gold

• Air, Ferrite, Iron

What is the turns ratio of a transformer with 1500 turns on the primary coil and 500 turns on the secondary coil?

• 0.5

• 1.5

• 2.5

• 3.5

What is the purpose of a Step-Up transformer?

• To convert DC to AC

• To increase AC voltage

• To store electrical energy

• To decrease AC voltage

What determines the relationship between the load current and primary current in a transformer?

• The number of turns in the primary winding

• The type of core material used

• The frequency of the input voltage

• The turns ratio of the transformer

What are load losses in a transformer?

• Losses that occur when the transformer is overloaded

• Losses that occur when the transformer is not connected to a load

• Losses that occur when the transformer is connected to a load

• Losses that occur when the transformer is underloaded

What is the most common application of an electrical transformer?

• To power household appliances

• To distribute electrical power

• To charge electronic devices

• To control lighting systems

What is the purpose of basic transformer testing?

• To verify the turns ratio

• To measure the resistance of the windings

• To determine the efficiency of the transformer

• To check for short circuits

What is the secondary voltage of a transformer with 1000 turns on the primary winding and 50 turns on the secondary winding, if the primary voltage is 240V?

• 240V

• 24V

• 12V

• 120V

What is the current in the primary winding of a transformer with a secondary resistance load of 550 ohms, if the primary current is 100mA?

• 0.02A

• 0.04A

• 0.08A

• 0.06A