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Hamad Chemical Engineering Basics 02/12/2021
- Volume of blast furnace slag is about _______________ times the volume of hot metal (pig iron) of the same weight ?
- A. 1.5 B. 3 C. 5 D. 7...
- Minimum safe distance between two liquid fuel storage tanks is equal to (where, H = height of the tank) ?
- A. H B. H/2 C. H/4 D. H/6...
- Oxygen cylinders used for autogenous (cutting/welding) purposes are ___________________?
- A. Seamless & made of steel B. Heat treated before use C. Made by sand casting D. Welded steel cylinders...
- Co-efficient of performance of a Carnot cycle refrigerator operating between – 23°C and + 27°C is ________________?
- A. 3 B. 5 C. 0.5 D. 1.5...
- The substance used as a smoke screen in warfare is___________________?
- A. C2H2 B. SiCl4 C. P2O5 D. PCl5...
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