ELECTRICIAN 1st YEAR MODULE – Domestic appliances July 2, 2025June 30, 2025 by admin TRANSLATE THIS QUIZ IN YOUR LANGUAGE इस प्रश्नोत्तरी का अपनी भाषा में अनुवाद करें <<1234567891011121314151617>> 0% Question 1 of 17 1. Which AC single-phase motor is used in food mixers? Split phase motor Repulsion motor Shaded pole motor Universal motorQuestion 1 of 17Question 2 of 17 2. What is the purpose of the sole plate in an electric kettle? Acts as an insulator for the element Acts as a balancing weight Keeps the element in close contact with container Protects the kettle base from damageQuestion 2 of 17Question 3 of 17 3. What is the defect in a single-phase pump motor if it runs at slow speed? Short in starting winding Defective capacitor Open starting winding Short in running windingQuestion 3 of 17Question 4 of 17 4. What is the magnetron tube filament voltage used in microwave ovens? 1.5 V AC 3.0 V AC 2.0 V AC 3.2 V ACQuestion 4 of 17Question 5 of 17 5. What is this circuit called? Electronic voltage multiplier Electronic voltage stabilizer Electronic triggering circuit of SCR Electronic fan regulatorQuestion 5 of 17Question 6 of 17 6. What is the purpose of the U-bend marked 'X' in a geyser? Prevents air locking in tank Prevents draining of water Avoids scale formation Reduces outlet pipe pressureQuestion 6 of 17Question 7 of 17 7. Which material is used to make heating elements? Copper Silver Nichrome AluminiumQuestion 7 of 17Question 8 of 17 8. What is the function of the stirrer motor in a microwave oven? Exhausts hot air outside Revolves and reflects electromagnetic energy Spreads heat uniformly Draws cooling air insideQuestion 8 of 17Question 9 of 17 9. What is the fault if a food mixer runs intermittently? Armature coil open Defective commutator Field winding partially short Worn out brushesQuestion 9 of 17Question 10 of 17 10. Calculate heat generated by a 1000W, 240V heater working for 5 minutes: 70.5 kcal 71.0 kcal 71.6 kcal 72.1 kcalQuestion 10 of 17Question 11 of 17 11. What is the function of the magnetron tube in a microwave oven? Changes polarity every half cycle Converts microwave to electrical energy Amplifies microwave signal Oscillates to produce cooking frequencyQuestion 11 of 17Question 12 of 17 12. Which formula calculates heat generated according to Joule's law? Heat = I²RT/J cal Heat = IRT/J cal Heat = IR²T/J cal Heat = (IR)²T/J calQuestion 12 of 17Question 13 of 17 13. What is the function of the neutral path in AC supply systems for appliances? Provides current return path Maintains load current constant Reduces voltage drop in wiring Maintains voltage level constantQuestion 13 of 17Question 14 of 17 14. What is the purpose of protection grooves in a heater base plate? Protect element from damage Place vessels firmly Retain heating element firmly Radiate heat properlyQuestion 14 of 17Question 15 of 17 15. Which motor type is used in wet grinders? Repulsion motor Universal motor Capacitor start induction run motor Capacitor start capacitor run motorQuestion 15 of 17Question 16 of 17 16. Which position gives maximum output from a heater? Position 3 Position 4 Position 2 Position 1Question 16 of 17Question 17 of 17 17. What is the name of this part of an electric iron? Sole plate Pressure plate Asbestos sheet Mica insulationQuestion 17 of 17 Loading...
