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Questions and Answers
What is the lifespan for Plug-in Relay with Metal to Carbon?
What is the lifespan for Plug-in Relay with Metal to Carbon?
Which signaling system has the longest lifespan?
Which signaling system has the longest lifespan?
What is the assumed lifespan for a Router or Switch?
What is the assumed lifespan for a Router or Switch?
Which of the following devices has the shortest lifespan according to the provided data?
Which of the following devices has the shortest lifespan according to the provided data?
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What is the lifespan of the Sensus equipment?
What is the lifespan of the Sensus equipment?
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Study Notes
Signalling System Lifespan
- All electronic signalling systems (e.g., Anle Counter, AFTC, IPS) have a lifespan of 20 years or until obsolescence.
- Karachi signalling systems have a lifespan of 15 years.
- Electrical/mechanical signalling systems (PJ/RRT) last 25 years.
Signalling Equipment Lifespan
- Plug-in Relay (Metal to Metal): 15,00,000 operations (25, 28, 25, 28, 30)
- Plug-in Relay (Metal to Carbon): 10,00,000 operations (25, 28, 25, 28, 30)
- Travel Relay, Qx: 10, 10, 10, 10, 10
- QBCA-1 Relay: 10, 10, 10, 10, 10
- Battery Chargers, Inverters, ELD: 30, 30, 30, 30, 30
- Other Battery Chargers: 10
- Batteries (VRLA): 4 years
- Batteries (LMIA): 5 years
- Block Instrument (BI): 10, 10, 10, 10, 10
- ELBC Electric Heftig Board: 10,10,10,10,10
- Monitor/LED/LCD TV: 8 years
Computer and IT Systems Lifespan
- Sensus: 8 years
- Routers/Switches (NW Active Devices): 6 years
- Network interface devices: 10 years
- OPS (1,50 KVA): 8 years
- UPS (2,50 KVA): 8 years
- Portable Computers/Laptops: 4 years
- Tablets: 4 years
- Thin Clients/Remote Terminals: 4 years
- Printer: 5 years
- Photographic Machine: 4 years
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Description
This quiz covers the lifespan of various electronic signalling systems and equipment used in railway and IT applications. It includes detailed information about the operational lifespan of different types of relays, battery chargers, computers, and network devices. Test your knowledge on these crucial components and their longevity in service.
