Maharashtra SSC Electrical Technology Pre-Voc/NSQF case studies
Maharashtra SSC Electrical Technology Pre-Voc/NSQF · Put your knowledge to work in context.
Electrical Technology is a pre-vocational/NSQF subject offered at Class 10 level under the Maharashtra State Board of Secondary and Higher Secondary Education. It is designed for SSC students who want a school-level vocational qualification that leads either into further technical study (ITI, polytechnic diploma streams) or into entry-level work as an electrician's helper, wiring assistant, or appliance service technician. The Maharashtra SSC Electrical Technology Pre-Voc/NSQF case studies are 5 cases and about 3,269 words.
1The Warm Heater, the Broken Earth Pin and the 16 A MCB
During a pre-vocational practical session, a student connects a 2000 W room heater and a 750 W electric iron to a 230 V, 15 A three-pin socket through a multi-plug adapter. The socket's earth pin is broken and the metal body of the heater gives a mild shock when touched.
700 words, about 4 min2Sizing a Geyser Circuit in a Two-Room House with Flickering Lights
A newly wired two-room house has a 230 V single-phase supply, a 32 A main switch and a 16 A MCB for the bathroom geyser. The geyser is rated 2000 W and is 30 m of cable route from the distribution board.
656 words, about 3 min3Ceiling Fan Hums but Will Not Rotate After a Voltage Disturbance
A customer brings a 1200 mm, 230 V, 80 W ceiling fan to a repair shop. The complaint is that the fan hums but the blades do not turn.
651 words, about 3 min4Borewell Pump Tripping Its MCB After Thirty Seconds
A 1 HP, 230 V single-phase borewell pump motor is installed on a farm. The motor starts, runs for about 30 seconds and then trips the 16 A type C MCB at the board.
644 words, about 3 min5Inverter Battery Losing Backup: One Weak Cell and a Replacement Decision
A customer brings a 12 V, 150 Ah tubular lead-acid inverter battery to a shop. It is three years old and its backup has fallen from about 4 hours to 45 minutes on a 200 W load.
618 words, about 3 min