Engineering Questions with Answers - Multiple Choice Questions
Materials Science MCQ’s – Metal Fabrication Techniques
1 - Question
Which of the following is a method of applying a protective zinc coating to steel?
a) Galvanizing
b) Glazing
c) Hydroforming
d) Metal punching
View Answer
Explanation: Galvanizing is a process in which a zinc coating is applied over the steel or iron sources to help prevent corrosion.
2 - Question
Which of the following is a process in which two metal slide against each other?
a) Galvanizing
b) Glazing
c) Hydroforming
d) Metal punching
View Answer
Explanation: The correct answer is glazing. In glazing, teo metals are made to slide against each other so that a shiny oxide layer is formed over the metal surfaces which will protect it from further wear.
3 - Question
Which of the following is a method in which high pressurized fluid is used?
a) Galvanizing
b) Glazing
c) Hydroforming
d) Metal punching
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Explanation: Hydroforming is a type of forming in which a special die is used which uses high pressurized fluid to give shape to metals and metal alloys like steel, copper and brass.
4 - Question
Which of the following is a process in holes are punchedl?
a) Galvanizing
b) Glazing
c) Hydroforming
d) Metal punching
View Answer
Explanation: Metal punching is the correct answer. It is a process in which a machine is used to punch a hole or a predetermined shape is punched out of the sheet metal.
5 - Question
Milling uses rotatory cutters.
a) True
b) False
View Answer
Explanation: The above statement is true. Milling is a process which uses rotatory cutters to remove material from a piece of metal which moves in a direction at an angle to the axis of the tool.
6 - Question
Which of the following a process in which material is made to pass through a roll?
a) Blanking
b) Cutting
c) Roll forming
d) Welding
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Explanation: Roll forming is a method in which materials in the form of coins, bars or strips are made to pass through rolls that by constant bending form the metal.
7 - Question
Which of the following a process in which a part or shape is the cutout of the sheet metal?
a) Blanking
b) Cutting
c) Roll forming
d) Welding
View Answer
Explanation: Blanking is the correct answer. Blanking is a process in which a part of a metal sheet is cut out of the sheet and the remaining material is discarded.
8 - Question
Which of the following a process in which sawing and shearing are used?
a) Blanking
b) Cutting
c) Roll forming
d) Welding
View Answer
Explanation: The process in which sawing and shearing are used is cutting. It is processed in which a part is cut out using power tools or CNC or by manually using saws and chisel.
9 - Question
Which of the following a process is used to join two metals?
a) Blanking
b) Cutting
c) Roll forming
d) Welding
View Answer
Explanation: Welding is a process which is used to join two metals using heat and sometimes pressure by melting the metals. It is a permanent joint and the joint will have to be broken to separate it again.
10 - Question
Shrinking is a process of making the metal smaller by applying force.
a) True
b) False
View Answer
Explanation: The above statement is false. Shrinking is a process which is used to remove dents in which direct damage is not severely stretched.