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Manufacturing & Production Engineering MCQ Question with Answer

Manufacturing & Production Engineering MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 57
Which of the following statement is correct about EDM machining?

It can machine hardest materials.
It produces high degree of surface finish.
The tool and work are never in contact with each other.
All of these

Question No : 58
The tool life in case of a grinding wheel is the time

Between two successive regrinds of the wheel
Taken for the wheel to be balanced
Taken between two successive wheel dressings
Taken for a wear of 1 mm on its diameter

Question No : 59
An important geometrical quantity in the cutting of metals which can be used as a criterion for machinability of metals is

Cutting speed
Feed rate
Shear angle
Tool geometry

Question No : 60
Which of the following arc welding processes does not use consumable electrodes?

GMAW
GTAW
Submerged Arc Welding
None of these

Question No : 61
In a metal arc welding process, metal transfer across the arc may take place by a method of material transfer where the metal transfers across the arc is in larger drops. This is at the rate of 100 drops / sec or less, what is this known as

Globular transfer
Spray transfer
GMAW practice
Dip transfer

Question No : 62
The size of a shaper is given by

Stroke length
Motor power
Mass of machine
Rate size

Question No : 63
When the temperature of a solid metal increases,

Strength of the metal decreases but ductility increases
Both strength and ductility of the metal decreases
Both strength and ductility of the metal increases
Strength of the metal increases but ductility decreases