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MCQs 1: What is the process, in which the metal is caused to flow through a restricted orifice to create an extremely elongated strip of uniform and comparatively smaller cross-sectional area, called?

Rolling Extrusion Drawing Spinning
Answer Explanation

MCQs 2: In circular drawing process, when the depth of drawing is more than the diameter of the die, then the process is called as

forced drawing hollow drawing deep drawing all of the above
Answer Explanation

MCQs 3: Chances of crack propagation are more in

cold working process hot working process both a. and b. none of the above
Answer Explanation

MCQs 4: The centre lathes receive their power through

headstock tailstock both a. and b. none of the above
Answer Explanation

MCQs 5: Which of the following is not a part of carriage of the centre lathe?

Tool post Apron Compound rest Gear box controls
Answer Explanation

MCQs 6: What is swing over carriage?

The maximum diameter of workpiece that can be rotated over the bed ways The minimum diameter of workpiece that can be rotated over the bed ways The maximum diameter of workpiece that can be rotated over lathe saddle The minimum diameter of workpiece that can be rotated over lathe saddle
Answer Explanation

MCQs 7: Which current is used in Tungsten Inert-Gas (TIG) welding?

Only A.C. can be used as welding current Only D.C. can be used as welding current Both A.C. and D.C. can be used as welding current None of the above
Answer Explanation

MCQs 8: The welding process by Metal Inert-Gas (MIG) welding is

slower than the welding process by Tungsten Inert-Gas (TIG) welding faster than the welding process by Tungsten Inert-Gas (TIG) welding at same speed as the welding process by Tungsten Inert-Gas (TIG) welding at unpredictable speed
Answer Explanation

MCQs 9: Which of the following statements are true for ultrasonic welding? 1. Productivity of ultrasonic welding is high 2. Thin pieces can be welded to thicker pieces by ultrasonic welding 3. Ultrasonic welds contain foreign inclusions 4. Post cleaning of welds is necessary in ultrasonic welding 5. Preparation required for ultrasonic welding process is very little

(1), (2) and (4) (2), (3) and (4) (1), (3) and (5) (1), (2) and (5)
Answer Explanation

MCQs 10: What is the motion of cutting tool and its cutting phenomenon in shaper machine?

Cutting tool in shaper machine has a spinning motion and it cuts only in one direction of rotation Cutting tool in shaper machine has a spinning motion and it cuts in both the clockwise and anticlockwise direction of rotation Cutting tool in shaper machine has a reciprocating motion and it cuts only in forward direction of stroke Cutting tool in shaper machine has a reciprocating motion and it cuts only in backward direction of stroke
Answer Explanation

MCQs 11: Which type of mechanism is used in shaper machine?

Indexing mechanism Four-bar chain mechanism Quick return mechanism None of the above
Answer Explanation

MCQs 12: What does the boring mean?

a process of making a hole in an object a process of enlarging a hole which is already in an object a process of finishing an existing hole very smoothly and accurately in size none of the above
Answer Explanation

MCQs 13: Which drilling machine is used to perform drilling operation on the workpieces which are too heavy and also maybe too large to mount on worktable?

Portable drilling machine Sensitive drilling machine Radial drilling machine none of the above
Answer Explanation

MCQs 14: The material which holds the fine grains of abrasive material in grinding wheel is called as

compound bond hold none of the above
Answer Explanation

MCQs 15: The grinding process results in good surface finishing because

the chip removed during the process is small the process is carried out at high cutting speed both a. and b. none of the above
Answer Explanation

MCQs 16: Rough grinding process is commonly used for

removing excess material from casting cutting materials that are too hard to be machined by other conventional tools producing surfaces on parts to higher dimensional accuracy obtaining finer finish
Answer Explanation

MCQs 17: Which process is used for grinding splined shafts?

External cylindrical grinding Internal cylindrical grinding Surface grinding Form grinding
Answer Explanation

MCQs 18: Which of the following statements are true for centreless grinding? 1. Less metal needs to be removed in centreless grinding operation 2. The setup time for centreless grinding operation is small 3. The requirement of wheel adjustment in centreless grinding operation is minimum 4. The centreless grinding operation can be applied equally to both internal and external grinding

(1), (2) and (3) (2), (3) and (4) (1), (3) and (4) (1), (2) and (4)
Answer Explanation

MCQs 19: In metal cutting process

material removal is affected by relative motion between tool and the workpiece material removal is not affected by relative motion between tool and the workpiece Both A & B None of the above
Answer Explanation

MCQs 20: In the metal cutting process, when the compression limit of the metal in front of the cutting tool has been exceeded then it is separated from workpiece and flows

elastically plastically rigidly none of the above
Answer Explanation

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