Chemical Industry Questions and Answers – Steel

This set of Chemical Industry Multiple Choice Questions & Answers (MCQs) focuses on “Steel”.

1. What are the raw materials needed for the manufacture of steel?
a) Pig iron
b) Nickel + oxygen
c) Pig iron + oxygen
d) Pig iron + nitrogen
View Answer

Answer: c
Explanation: Steel can be manufactured from pig iron with air or oxygen. Pig iron is manufactured from iron ore, coke and limestone.

2. Removal of impurities from pig iron by oxidation gives steel.
a) True
b) False
View Answer

Answer: a
Explanation: Steel making involves the removal of undesirable elements from pig iron by oxidation followed by the addition of the necessary ingredients to make the type of steel required.

3. What is the temperature of the blast furnace in steel plants?
a) 100 °C
b) 1000 °C
c) 500 °C
d) 2200 °C
View Answer

Answer: d
Explanation: Blast furnace is used to break down the pig iron at high temperature condition. The maximum temperature of the blast furnace is around 2200°C

4. Which among the following impurity is not added to steel?
a) Silicon
b) Carbon
c) Manganese
d) Arsenic
View Answer

Answer: d
Explanation: Sulphur is added in steel to improve its machineability but lowers the ductility. Carbon increases the strength of steel whereas manganese increases the hardenability.

5. Which method is commonly used for the manufacture of steel?
a) Open hearth process
b) Contact process
c) Kraft’s process
d) Monte catini process
View Answer

Answer: a
Explanation: In open hearth process tons of molten pig iron, steel and iron ore is charged. The limestone reacts with phosphorous. The iron ore furnishes oxygen.
Sanfoundry Certification Contest of the Month is Live. 100+ Subjects. Participate Now!

Sanfoundry Global Education & Learning Series – Chemical Industry.

To practice all areas of Chemical Industry, here is complete set of 1000+ Multiple Choice Questions and Answers.


If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

Subscribe to our Newsletters (Subject-wise). Participate in the Sanfoundry Certification contest to get free Certificate of Merit. Join our social networks below and stay updated with latest contests, videos, internships and jobs!

Youtube | Telegram | LinkedIn | Instagram | Facebook | Twitter | Pinterest
Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

Subscribe to his free Masterclasses at Youtube & discussions at Telegram SanfoundryClasses.