A. Prevents waste A. Prevents waste gases escaping C. A lot of iron is C. A lot of iron is needed B. Takes so long to B. Takes so long to heat to required temperature D. It’s lined with D. It’s lined with firebrick Why do blast furnaces work every day & night, all year round?
Back to Board B. Takes so long to heat to required temperature
A. Helps to take A. Helps to take oxygen away C. Gets rid of impurities C. Gets rid of impurities within iron ore B. Helps furnace reach B. Helps furnace reach the required temperature D. Adds strength to D. Adds strength to the iron produced What is the purpose of limestone in a blast furnace?
Back to Board C. Gets rid of impurities within iron ore
A. Oxygen A. Oxygen D. Gas D. Gas Which of the following is not on the fire triangle? C. Fuel C. Fuel B. Heat B. Heat
A. Greasing A. Greasing Which method of preventing rusting would you use to protect a lawnmower in winter? B. Painting B. Painting D. Plastic coating D. Plastic coating C. Plating C. Plating
B. Burns with a pop B. Burns with a pop What is the test for Hydrogen gas? A. Turns limewater milky A. Turns limewater milky C. Relights a splint C. Relights a splint D. It puts out a flame D. It puts out a flame
D. Chemical - Electrical D. Chemical - Electrical What is the energy change in a battery? A. Light-Heat A. Light-Heat C. Heat - Chemical C. Heat - Chemical B. Sound - electrical B. Sound - electrical
D. Fractional distillation D. Fractional distillation How is crude oil split up into it’s different compounds?: A. Fractional cooling A. Fractional cooling C. Filtration C. Filtration B. Fractional burning B. Fractional burning