1. In an AC circuit, the voltage and current waveforms are typically:
2. What is the least number that must be added to 4321 to make it divisible by 9?
3. The radius of a sphere is 10 cm. What is the volume of the sphere?
4. The HCF of 36 and 60 is 12. What is their LCM?
5. A person travels from A to B at a speed of 60 km/h and returns from B to A at a speed of 40 km/h. What is the average speed for the entire journey?
6. What is the LCM of 8 and 12?
7. If the HCF of two numbers is 8 and their LCM is 72, and one of the numbers is 24, find the other number.
8. A train 500 meters long is running at a speed of 36 km/h. How much time will it take to cross a platform 200 meters long?
9. At what time between 9:00 and 10:00 will the hands of the clock be in a straight line?
10. A car travels 60 km in 1 hour and 30 minutes. What is its average speed in km/h?
11. A train travels 100 meters in 10 seconds. What is the speed of the train in km/h?
12. If the LCM of two numbers is 120 and their HCF is 10, what is the product of the two numbers?
13. A person buys an article for ₹800 and sells it at a profit of 20%. If the selling price is increased by 10%, what will be the new profit percentage?
14. What is the HCF of 24 and 36?
15. Find the smallest five-digit number that is divisible by 12, 15, and 18.
16. What is the smallest 5-digit number divisible by 3?
17. Which of the following materials is used as the core material in transformers?
18. The fuel used in nuclear reactors is primarily:
19. The fault current is typically detected by:
20. A stepper motor is classified as a:
21. In an induction motor, the rotor is made of:
22. In an electric circuit, what does the symbol "Ω" represent?
23. In a series circuit, the total current is:
24. What is the total resistance in a series circuit?
25. The slip of an induction motor is defined as:
26. What is the power factor in an AC circuit?
27. Differential protection is commonly used for:
28. The error in measurement due to the instrument itself is called:
29. A 60 W bulb is used for 10 hours. How much energy does it consume in kilowatt-hours (kWh)?
30. What is the primary function of a transformer?