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. What is this circuit called? Electronic triggering circuit of SCR Electronic voltage multiplier Electronic fan regulator Electronic voltage stabilizerQuestion 1 of 17Question 2 of 17 2. Which position gives maximum output from a heater? Position 3 Position 2 Position 1 Position 4Question 2 of 17Question 3 of 17 3. Which AC single-phase motor is used in food mixers? Split phase motor Shaded pole motor Universal motor Repulsion motorQuestion 3 of 17Question 4 of 17 4. Which formula calculates heat generated according to Joule's law? Heat = IR²T/J cal Heat = I²RT/J cal Heat = IRT/J cal Heat = (IR)²T/J calQuestion 4 of 17Question 5 of 17 5. What is the purpose of the U-bend marked 'X' in a geyser? Avoids scale formation Prevents draining of water Prevents air locking in tank Reduces outlet pipe pressureQuestion 5 of 17Question 6 of 17 6. What is the purpose of protection grooves in a heater base plate? Protect element from damage Retain heating element firmly Place vessels firmly Radiate heat properlyQuestion 6 of 17Question 7 of 17 7. 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 7 of 17Question 8 of 17 8. What is the defect in a single-phase pump motor if it runs at slow speed? Open starting winding Defective capacitor Short in starting winding Short in running windingQuestion 8 of 17Question 9 of 17 9. What is the fault if a food mixer runs intermittently? Defective commutator Worn out brushes Armature coil open Field winding partially shortQuestion 9 of 17Question 10 of 17 10. Calculate heat generated by a 1000W, 240V heater working for 5 minutes: 71.6 kcal 72.1 kcal 71.0 kcal 70.5 kcalQuestion 10 of 17Question 11 of 17 11. Which material is used to make heating elements? Aluminium Silver Copper NichromeQuestion 11 of 17Question 12 of 17 12. What is the function of the stirrer motor in a microwave oven? Spreads heat uniformly Draws cooling air inside Exhausts hot air outside Revolves and reflects electromagnetic energyQuestion 12 of 17Question 13 of 17 13. What is the name of this part of an electric iron? Pressure plate Mica insulation Sole plate Asbestos sheetQuestion 13 of 17Question 14 of 17 14. What is the function of the neutral path in AC supply systems for appliances? Provides current return path Reduces voltage drop in wiring Maintains load current constant Maintains voltage level constantQuestion 14 of 17Question 15 of 17 15. What is the purpose of the sole plate in an electric kettle? Keeps the element in close contact with container Acts as a balancing weight Acts as an insulator for the element Protects the kettle base from damageQuestion 15 of 17Question 16 of 17 16. Which motor type is used in wet grinders? Capacitor start induction run motor Universal motor Repulsion motor Capacitor start capacitor run motorQuestion 16 of 17Question 17 of 17 17. What is the magnetron tube filament voltage used in microwave ovens? 3.0 V AC 1.5 V AC 3.2 V AC 2.0 V ACQuestion 17 of 17 Loading...
