Presence of cobalt in steel improves its____________________?
Correct answer: A. Cutting ability
- A. Cutting ability
- B. Corrosion resistance
- C. Tensile strength
- D. None of these
Explanation
Cobalt increases the hot hardness and red-hardness of steel, allowing cutting tools to retain their hardness at elevated temperatures. This improves cutting ability rather than primarily serving as a corrosion-resistance addition.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Plant Design and Economics
803 free Plant Design and Economics MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Plant Design and Economics questions
Bush bearings are made of______________________?
How many atoms are there per unit cell in a body centred cubic lattice system ?
Nickel base alloys with ______________ are known as monel metal?
Which of the following has no effect on the carbide forming tendency in steels ?
Mild steel storage vessels are suitable for the storage of___________________?
The increase in hardness of metal due to its cold working is termed as the _______________ hardening?