Q. Fusible plug for boilers consists of (Solved)
1. Zinc, bismuth and tin
2. Lead, tin and mercury
3. Copper, lead and tin
4. Bismuth, lead and tin
5. Zinc, copper and lead
- d. Bismuth, lead and tin
1. Zinc, bismuth and tin
2. Lead, tin and mercury
3. Copper, lead and tin
4. Bismuth, lead and tin
5. Zinc, copper and lead