ELECTRICIAN 1st YEAR MODULE – Domestic appliances

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Question 1 of 17

1. What is the name of this part of an electric iron?

Question 1 of 17

Question 2 of 17

2. What is this circuit called?

Question 2 of 17

Question 3 of 17

3. Which AC single-phase motor is used in food mixers?

Question 3 of 17

Question 4 of 17

4. Calculate heat generated by a 1000W, 240V heater working for 5 minutes:

Question 4 of 17

Question 5 of 17

5. Which formula calculates heat generated according to Joule's law?

Question 5 of 17

Question 6 of 17

6. What is the purpose of protection grooves in a heater base plate?

Question 6 of 17

Question 7 of 17

7. What is the magnetron tube filament voltage used in microwave ovens?

Question 7 of 17

Question 8 of 17

8. What is the function of the stirrer motor in a microwave oven?

Question 8 of 17

Question 9 of 17

9. What is the defect in a single-phase pump motor if it runs at slow speed?

Question 9 of 17

Question 10 of 17

10. Which position gives maximum output from a heater?

Question 10 of 17

Question 11 of 17

11. What is the function of the magnetron tube in a microwave oven?

Question 11 of 17

Question 12 of 17

12. What is the purpose of the sole plate in an electric kettle?

Question 12 of 17

Question 13 of 17

13. What is the fault if a food mixer runs intermittently?

Question 13 of 17

Question 14 of 17

14. What is the purpose of the U-bend marked 'X' in a geyser?

Question 14 of 17

Question 15 of 17

15. Which material is used to make heating elements?

Question 15 of 17

Question 16 of 17

16. What is the function of the neutral path in AC supply systems for appliances?

Question 16 of 17

Question 17 of 17

17. Which motor type is used in wet grinders?

Question 17 of 17


 

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