3169. A coal that softens and fuses on heating is

By Admin / September 7, 2025

Classified

Carbonised

Caking

Non-caking

✅ The correct answer is option C.

3164. Correct viscosity of furnace oil at the burner tip for proper atomisation is about 25 centistokes. To reduce the viscosity of high viscosity furnace oil (250 centistokes) to the correct atomisation viscosity (i.e. 25 cst), it should be preheated to about____°C.

3174. Yield of coke oven gas in low temperature carbonisation of coal is about __________ Nm³ /ton of dry coal.

1. A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm².

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2. Transformer cores are normally made from

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