Weldability of Metals and Alloys金属焊接性答案2023

第一章测试

1.With carbon equivalent ( ), the steel has a low tendency to harden and cold cracking?
A:less than 0.40% B:less than 0.50% C:less than 0.60% D:less than 0.80%
答案:A
2.( ) is not a factor that affects weldability.
A:Welding process B:chemical composition C:operation skill D:joint type
答案:C
3.The calculation formula of carbon equivalent of the IWS considers the influence of () on weldability.
A:welding structure  B:chemical composition C:diffusion hydrogen D:welding process
答案:ACD
4.Maximum crack distance has been used to allow more accurate determination of the cracking ( ) range.
A:toughness B:strength C:size D:temperature
答案:D
5.

Weldability is not easily quantified, and can depend on a variety of factors, including  ( ).

A:operator and welder B:welded structure C:physical specifics of the joint D:welding method
答案:BCD