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Workshop Technology MCQ Questions & Answers | Mechanical Engineering

Learn Workshop Technology MCQ questions & answers are available for a Mechanical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Workshop Technology MCQ question is the important chapter for a Mechanical Engineering and GATE students. Page-9 section-1

Each section contains 100 MCQs on Workshop Technology .
81
In a cold chamber die casting machine
Discuss
Answer & Solution
Answer: Option A
Solution:
In a cold chamber die casting machine Melting pot is separate from the machine.
Cold chamber die casting is ideal for metals such as aluminum which have a high melting point. During this process, metal is liquefied in a furnace at extremely high temperatures and then ladled into a cold chamber to be injected into the die.
82
Carburizing flame is used to weld
Discuss
Answer & Solution
Answer: Option C
Solution:
A carburizing flame is advantageous for welding high carbon steel and hard facing such nonferrous alloys as Nickel and Monel.
Carburizing flame is used to weld hard surfacing materials such as stellite.
83
A progressive limit gauge has
Discuss
Answer & Solution
Answer: Option A
Solution:
A progressive limit gauge that serves to determine whether the measured part is within prescribed limits of tolerance.
A progressive limit gauge has 'Go' and 'Not go' member on the same side of the gauge
84
The temperature at which the new grains are formed in the metal is called
Discuss
Answer & Solution
Answer: Option D
Solution:
Recrystallization is the process in which deformed grains of the crystal structure are replaced by a new set of stress-free grains that nucleate and grow until all the original grains have been consumed. The process is accomplished by heating the material to temperatures above that of crystallization.
85
The purpose of a gate is to
Discuss
Answer & Solution
Answer: Option A
Solution:
The purpose of a gate is to delivers molten metal into the mould cavity.
A proper method of gating system is that it leads the pure molten metal to flow through a ladle to the casting cavity, which ensures proper and smooth filling of the cavity. This depends on the layout of the gating channels too, such as the direction and the position of the runner, sprue and ingates.
86
In order to check the clearance between two mating surfaces, a ________ gauge should be used.
Discuss
Answer & Solution
Answer: Option C
Solution:
In order to check the clearance between two mating surfaces, a Feeler gauge should be used.
87
In forehand welding, the angle between the welding rod and the work is kept as
Discuss
Answer & Solution
Answer: Option A
Solution:
Forehand welding is often called PUDDLE or RIPPLE WELDING. In this method of welding, the rod is kept ahead of the flame in the direction in which the weld is being made. You point the flame in the direction of travel and hold the tip at an angle of about 45° to the working surfaces.
88
In backhand welding, the angle between the welding torch and the work is kept as
Discuss
Answer & Solution
Answer: Option B
Solution:
Backhand Welding Illustration: Torch and Rod Angles are 45° as viewed by the operator a perpendicular (90°) to the work surface as viewed from the end of the workpiece. Increased speeds and better control of the puddle are possible with backhand technique when metal $$\frac{1}{8}$$ in.
89
In electric resistance welding, voltage required for heating is
Discuss
Answer & Solution
Answer: Option B
Solution:
Electric resistance welding (ERW) refers to a group of welding processes such as spot and seam welding that produce coalescence of faying surfaces where heat to form the weld is generated by the electrical resistance of material combined with the time and the force used to hold the materials together during welding.
In electric resistance welding, voltage required for heating is 6 to 10 volts.
90
To prevent the body of the blade from jamming in the saw cut, the teeth of blade are
Discuss
Answer & Solution
Answer: Option C
Solution:
To prevent the body of the blade from jamming in the saw cut, the teeth of blade are Set