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