Which of the following are not true for carbo nitriding?

Introducing carbon and nitrogen at surface layer

Component is heated in range of 650 to 920 C

Cyaniding is similar to carbo nitriding except that the medium is liquid

This process gives a lower wear resistance compared to case carburising process

Case carburising involves

Introducing carbon at surface layer

Case depths up to 2mm are possible

Induction hardening process involves

Heating surface by induction in field of invariable current

Case depth minimum of 2mm are produced

Heating surface by induction in field of alternating current

Flame hardening involves

Heating the surface above the trAnswerformation range

Explore topic-wise MCQs in Machine Design.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Design knowledge and support exam preparation. Choose a topic below to get started.

1.	Which of the following are not true for carbo nitriding?
A.	Introducing carbon and nitrogen at surface layer
B.	Component is heated in range of 650 to 920 C
C.	Cyaniding is similar to carbo nitriding except that the medium is liquid
D.	This process gives a lower wear resistance compared to case carburising process
Answer» E.

Discussion

2.	Case carburising involves
A.	Introducing carbon at surface layer
B.	Heating range 880 to 980 C
C.	Case depths up to 2mm are possible
D.	All of the mentioned
Answer» E.

Discussion

3.	Induction hardening process involves
A.	Heating surface by induction in field of invariable current
B.	Case depth minimum of 2mm are produced
C.	Heating surface by induction in field of alternating current
D.	None of the mentioned
Answer» D. None of the mentioned

Discussion

4.	Flame hardening involves
A.	Heating the surface above the trAnswerformation range
B.	Quenching after heating
C.	Minimum case depth is 1mm
D.	All of the mentioned
Answer» E.

Discussion