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Casting Forming Welding
Casting Exam
Quiz 1
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Q.1
Which of the following parts of castings are mostly salvaged with defective cast cooling bumps?
a) Piston
b) Cylinder
c) Connecting rods
d) Gas turbine parts
Q.2
In salvaging of castings, cooling fluid used can be directly exposed to the hot castings to enhance heat transfer.
a) True
b) False
Q.3
A metallic powder is basically used as a coating for the heat transfer enhancement.
a) True
b) False
Q.4
Which of the following types of inspection is mostly used for the identification of cast bumps on the castings?
a) Radiography
b) Eddy current method
c) Visual inspection
d) Dimensional inspection
Q.5
In salvaging process, the metallic particles used for enhancing heat transfer may stick to the surface areas of casting by melting itself.
a) True
b) False
Q.6
In electric arc wire spray process, the atomizing air pressure is the only significant variable for controlling the surface layers.
a) True
b) False
Q.7
In salvaging of castings, the metallic powder coating can improve the heat transfer by_____
a) 5-10%
b) 10-30%
c) 30-50%
d) 100%
Q.8
Without knowing the conditions or details about the castings, salvaging can even destroy or damage the whole casting.
a) True
b) False
Q.9
By using electric arc wire spray process, salvaging of white cast iron becomes very easy.
a) True
b) False
Q.10
In electric arc wire spray process, preheating of metal before welding is mainly done to prevent surface cracking.
a) True
b) False
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