
MEC1015 - Quiz7
Authored by Phu Pham
English
1st - 5th Grade

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Giải thích thành phần trong hợp kim: TT7K12
%TiC = 7%, %Co = 12%, %WC = 81%
%(WC+ TiC+TaC) = 7%, %Co = 12%
%TaC = 7%, %Co = 12%, %WC = 81%
%(TiC+TaC) = 7%, %Co = 12%, %WC = 81%
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hãy giải thích ký hiệu sau: BCuAl10Fe4Ni4:
Brông thiếc: Al = 10%, Fe = 4%, Ni = 4%, Cu = 82%
Brông chì: Al = 10%, Fe = 4%, Ni = 4%, Cu = 82%
Brông nhôm: Al = 10%, Fe = 4%, Ni = 4%, Cu = 1%
Brông nhôm: Al = 10%, Fe = 4%, Ni = 4%, Cu = 82%
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong đồng thau phức tạp (La tông phức tạp) có những nguyên tố nào tham gia?
Cu, Zn và 1 số nguyên tố đặc biệt: Pb, Sn, Al, Ni
Cu và 1 số nguyên tố đặc biệt: Pb, Sn, Al, Ni
Zn
Cu, Zn
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hợp kim cứng nhóm nào có độ bền chống rung, chống mẻ cao hơn?
Nhóm 3 cácbít
Nhóm 1 cácbít
Nhóm 2 cácbít và Nhóm 3 cácbít
Nhóm 2 cácbít
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ký hiệu T15K6 tương đương với ký hiệu nào sau đây:
WCTiC15Co6
WCTiCTaC15Co6
WCTaC15Co6
TiCTaC15Co6
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tác dụng của các nhóm các bít trong hợp kim cứng là gì?
Tăng độ bền
Tăng tính cứng nóng
Tăng độ dẻo dai
Tăng tính kết dính
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phương pháp nào sau đây được dùng để chế tạo hợp kim cứng:
nén
kéo
luyện kim bột
cán
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