Question

Multiple choice questions answers

Latest updates Popular Newest Unanswered Unsolved

Q
General coarseness of the microstructure (Melt) is largely determined by the _______
Answers
1
Views
1K
Nguyễn Thị Thuý
N
N
Wire diameters in the Gas metal arc welding ranges from _______
Answers
1
Views
387
Hưng Thịnh
H
L
How much impact does a nucleation barrier can create to the solidification when melt has approximately the same composition as the base
Answers
1
Views
406
Võ Kiều
V
N
Which among the following is the first automated arc welding process?
Answers
1
Views
615
Nguyễn Thanh Uyên
N
P
Calculate the heat density if the power transferred is 1000W and the corresponding surface area is 10m$^{2}$?
Answers
1
Views
545
Nguyễn Cap Tuyến
Nguyễn Cap Tuyến
N
In general dendritic and cellular substructures in welds tend to be on a finer scale than in casting.
Answers
1
Views
534
Phạm Công Thành
P
P
Plasma arc welding is a special form of ____
Answers
1
Views
301
Ngô Thị Vân
N
P
Typical shielding gases in TIG welding includes ______
Answers
1
Views
450
Phác Chí Huấn
P
Đ
Welding can be considered as a ______
Answers
1
Views
289
Nguyễn Nguyệt Ánh
Nguyễn Nguyệt Ánh
D
TIG welding of thin plates will give steeper thermal gradients than submerged arc welding of thick plates, the latter process will have
Answers
1
Views
296
Bờm
B
L
An important effect of increasing the welding speed is that the shape of the weld pool changes from an elliptical shape to a ___________
Answers
1
Views
316
Khánh Đoan
K
N
The breakdown of solid/liquid interface at the local equilibrium can be due to___
Answers
1
Views
593
Sheeshy Sipgrark
S
Đ
It is seen that for crystal growth rate, R, to keep pace with the welding speed, 3m/s, the condition must be met that for this to happen
Answers
1
Views
509
Đạt Michio
Đ
N
Which among the following solidification can occur without microsegregation?
Answers
1
Views
420
Nguyễn Thiệu Vy
N
D
Solidification can also occur at much higher rates of 10$^{4}$-10$^{7}$K/s. In which among the following it is not applicable?
Answers
1
Views
388
Nguyễn Cap Tuyến
Nguyễn Cap Tuyến
D
What happens to the entropy in a system with constant volume and constant internal energy during a spontaneous process?
Answers
1
Views
302
Linh Chi
L
N
Two crystal structures are in equilibrium and their Gibbs energies are the same. Thus, the driving force for the transformation is_________
Answers
1
Views
434
Quang Hiếu
Q
N
The quantum of energy in an elastic wave is called a ___________
Answers
1
Views
330
Lâm Phung
L
T
Graphite and diamond at room temperature and pressure are examples of _____________
Answers
1
Views
272
Mỹ An
M
Đ
When the system is at local equilibrium, its Gibbs free energy (G) function has reached its minimum value.
Answers
1
Views
319
Nguyễn Thuỳ Chi
N
You must log in or register to post here.

Tìm kiếm

Top