Bissoy.com

Login

Doctors Medicines MCQs Q&A

Ask Merit Test Questions Courses

Home
MCQs
Mechanical Behaviour
Maraging steels are ____________

Maraging steels are ____________

A

High carbon steels

B

Low alloy steels

C

Ultra high strength steels

D

Ferritic steels

Maraging steels are ____________ Correct Answer Ultra high strength steels

Maraging steels are low carbon, high alloy steels. These are ultra-high strength steels. These consist of a martensite matrix.

Bissoy MCQ Team

Dec 01, 2024

Mechanical Behaviour
Applications of Strengthening Mechanisms

Related Questions

Maraging steels derive their strength from the following mechanism:

A

A fine, highly dislocated and strong martensite

B

Fine dispersions of intermetallics of Fe, Ni, Ti etc

C

Fine dispersions of alloy carbides in a ferrite matrix

D

Fine dispersions of Fe₃ C nucleated on dislocations in austenite

Maraging steels have high strength due to _________

A

Martensitic strengthening

B

Precipitation hardening

C

Grain refinement

D

Martensitic strengthening and Precipitation hardening

Maraging steels have main alloying elements rare earth metals.

A

True

B

False

In maraging steels, carbon is present as an impurity and is generally kept below . . . . . . . . percent.

A

0.03

B

0.1

C

1.0

D

0.5

For hardening alloy steels and high speed steels, they are heated to

A

1100 to 1300°C

B

1300 to 1500°C

C

500 to 600°C

D

700 to 900°C

'Killed steels' are those steels

A

Which are destroyed by burning

B

Which after their destruction are recycled to produce fresh steel

C

Which are deoxidized in the ladle with silicon and aluminium

D

In which carbon is completely burnt

Steels with high carbon equivalent have poor weldability, because in these steels during welding

A

Carbon and other alloying elements get oxidised from the weld pool

B

Excessive ferrite forms in the heat affected zone leading to poor toughness of the weld

C

Martensite forms in the heat affected zone leading to poor toughness/ductility of the weld

D

Segregation of carbon and other element occurs in the weld pool leading to poor properties of the weld

Ferric stainless steels compared to austenitic stainless steels

A

Have lower corrosion resistance

B

Are harder to fabricate

C

Are less ductile and hence less suitable for cold pressing

D

All of the above

The term high alloy steels is used for alloy steels containing more than ___ of alloying elements.

A

10%

B

20%

C

50%

D

70%

What are the advantages of plain carbon steels over alloy steels?

A

Inexpensive but hard to handle

B

Expensive but easy to handle

C

Inexpensive and easy to handle

D

There are no advantages of plain carbon steels

কোরআন
চাকুরি প্রস্তুতি
বিশ্ববিদ্যালয় ভর্তি
মেডিকেল SBA
এইচএসসি
এসএসসি
জেএসসি

এক্সাম দিয়ে মেধা যাচাই করুন

Job Preparation (1125)

Admission (754)

এসএসসি (10)

এইচএসসি (5)

ভিডিও কলে কথা বলতে Bissoy অ্যাপ ডাউনলোড করুন অথবা প্রশ্ন উত্তর করতে লগইন করুন

📱 Android ডাউনলোড  iOS ডাউনলোড

অ্যাফিলিয়েট
FAQ
About Us
Privacy Policy
T&C
DMCA

© Bissoy, 2014 - 2026