"Students were playing on the playground because they wanted to do extra practice for inter-school competitions. One solar lamp was present on the playground, but it wasn't in working condition.As per the student's request, the principal called the electrician to repair a lamp. He followed safety norms while repairing the lamp, replacing the faulty neutral wire from the circuit. He suggested that the lamp pole must be repaired as it was rusted and cracked because the lamp is on an open field. He proposed to call the welder. From his suggestions, the teacher called the welder to repair the lamp pole. He started repairing it using a welding machine. But the spark of the welding process bothered his eyes. The welder's eyes became red and teary, but he kept doing the task and repaired the lamp pole on the ground."(i) What can we do to prevent the lamp pole from rusting? (a) Plastering (b) Painting (c) Welding (d) Drilling(ii) Which cell is used to converts solar energy directly into electrical energy? (a) Dry cell (b) Photovoltaic cell (c) Battery (d) Magnet(iii) Write the use of welding machines? a) Welding machine is used for drilling and threading, polishing. b) Welding machine is used for polishing and drilling operations. c) Welding machine is used for welding operations. d) Welding machines are used for polishing and welding.(iv) Why was the lamp not glowing, even though Phase wire was connected; only the neutral wire was faulty? (a) Need to complete the circuit (b) It requires earthing (c) Fluctuation in voltage (d) Fluctuation in current(v) What would be the reason for turning out the welder's eyes red and teary? a) He didn't wear the safety goggles. b) He was staring at job. c) He may not sleep. d) He is too happy(vi) Suggest safety equipment for a welder to safely conduct operations? (a) Safety apron, Welding machine, Helmet (b) Welding machine, Hand screen, Shoes (c) Helmet, Hand screen, Welding rod (d) Safety apron, Safety goggle, Hand screen(vii) What is the type of solar energy? (a) Non-renewable (b) Renewable (c) Nuclear (d) Fossil fuel