A. Charcoal
B. Calcium carbide
C. Hydrocarbon oil
D. Graphite
Related Mcqs:
- In the Contact process of sulphuric acid manufacture, 98% acid cooler is made of_____________________?
A. Stainless steel
B. Cast iron
C. Lead lined steel
D. Rubber lined steel - High carbon steel contains more than _____________ percent carbon?
A. 0.5
B. 2.2
C. 2.5
D. 2.8 - Maximum carbon content in any variety of steel can be upto 1.3%. Steel containing 0.4% Carbon is not used for making___________________?
A. Nuts
B. Bolts
C. Chisels
D. Studs - Carbon content in plain carbon steel is ______________ percent?
A. 0.1 to 0.15
B. 0.35 to 0.45
C. 0.65 to 0.80
D. 0.85 to 1.2 - Low carbon steels are those in which carbon percentage is around____________________?
A. 0.1 to 0.35
B. 0.4 to 0.7
C. 0.8 to 1.5
D. 1.5 to 2 - Carbon percentage in medium carbon steel is around__________________?
A. 0.1 to 0.35
B. 0.35 to 0.5
C. 0.8 to 1.4
D. 1 to 1. 5 - Carbon is present in the combined form (carbide) in case of______________________?
A. Pig iron
B. Steel
C. Ferroalloys
D. All A., B. & C. - Carbon is present in the uncombined (graphitic) form in case of__________________?
A. Cast iron
B. Steel
C. Ferroalloy
D. None of these - Chromel (Nichrome) is an alloy of_____________________?
A. Chromium and molybdenum
B. Nickel and chromium
C. Molybdenum and nickel
D. Chromium and aluminium - Iron alloyed with carbon upto 2% is called___________________?
A. Pig iron
B. Wrought iron
C. High carbon steel
D. None of these