B/ Choose correct answer from the following (choose 5 only): 1. The iron ore mostly used for the production of pig Iron is: b) Hematite a) Cuprite c) Bauxite d) Bornite 2. In TIG arc welding, the welding zone is shielded by an atmosphere of: a. Helium b) Hydrogen c) Nitrogen 3. A moving mandrel is used in: a) wire drawing b) tube drawing c) metal cutting d) Acetylene d) forging

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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B/
Choose correct answer from the following (choose 5 only):
1. The iron ore mostly used for the production of pig Iron is:
b) Hematite c) Bauxite
a) Cuprite
d) Bornite
2. In TIG are welding, the welding zone is shielded by an atmosphere of
a. Helium
b) Hydrogen
c) Nitrogen
3. A moving mandrel is used in:
a) wire drawing
b) tube drawing
c) metal cutting
d) forging
4. The operation of producing Pepsi cans is known as:
a) impact extrusion b) direct extrusion
c) sizing
d) indirect extrusion
5. Which of the following is used to form Complex shapes such as carburetor:
a) centrifugal casting b) sand casting c) powder metallurgy d) pressure die casting
6. Which one of the cutting tools are make by powder metallurgy.
a) Phosphor Bronze
b) carbides
c) tool steel
d) diamond
d) Acetylene
Transcribed Image Text:B/ Choose correct answer from the following (choose 5 only): 1. The iron ore mostly used for the production of pig Iron is: b) Hematite c) Bauxite a) Cuprite d) Bornite 2. In TIG are welding, the welding zone is shielded by an atmosphere of a. Helium b) Hydrogen c) Nitrogen 3. A moving mandrel is used in: a) wire drawing b) tube drawing c) metal cutting d) forging 4. The operation of producing Pepsi cans is known as: a) impact extrusion b) direct extrusion c) sizing d) indirect extrusion 5. Which of the following is used to form Complex shapes such as carburetor: a) centrifugal casting b) sand casting c) powder metallurgy d) pressure die casting 6. Which one of the cutting tools are make by powder metallurgy. a) Phosphor Bronze b) carbides c) tool steel d) diamond d) Acetylene
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