800 + Mcqs in Manufacturing And Production Technology Page 8 McqOptions

351.	The main purpose of a boring operation, as compared to drilling, is to%!
A.	Drill a hole
B.	Finish the drilled hole
C.	Correct the hole
D.	Enlarge the existing hole
Answer» E.

Discussion

352.	The rake angle of a single point cutting tool corresponds to _________ of a twist drill.%!
A.	Lip clearance angle
B.	Helix angle
C.	Point angle
D.	Chisel edge angle
Answer» C. Point angle

Discussion

353.	During the execution of a CNC part program block NO20 GO2 X45.0 Y25.0 R5.0 ; the type of tool motion will be%!
A.	Circular Interpolation ‚Äö√ √≠ clockwise
B.	Circular Interpolation ‚Äö√ √≠ counter clockwise
C.	Linear Interpolation
D.	Rapid feed
Answer» B. Circular Interpolation ‚Äö√ √≠ counter clockwise

Discussion

354.	In grinding irregular, curved, tapered, convex and concave surfaces, the grinder used is%!
A.	Cylindrical grinder
B.	Internal grinder
C.	Surface grinder
D.	Tool and cutter grinder
Answer» D. Tool and cutter grinder

Discussion

355.	Any number of equal divisions can be obtained on milling machine by%!
A.	Direct indexing
B.	Simple indexing
C.	Compound indexing
D.	Differential indexing
Answer» C. Compound indexing

Discussion

356.	For fast removal of materials during grinding, a _________ grinding wheel is used.%!
A.	Course grained
B.	Fine grained
C.	Medium grained
D.	None of these
Answer» B. Fine grained

Discussion

357.	Thread grinding requires work speed from%!
A.	1 to 3 m/min
B.	5 to 10 m/min
C.	10 to 14 m/min
D.	14 to 20 m/min
Answer» B. 5 to 10 m/min

Discussion

358.	For machining a mild steel workpiece using carbide tool, the maximum material will be removed at a temperature of%!
A.	50¬¨‚àûC
B.	100¬¨‚àûC
C.	175¬¨‚àûC
D.	275¬¨‚àûC
Answer» C. 175¬¨‚àûC

Discussion

359.	In hot machining, tool is made of%!
A.	Tungsten carbide
B.	Brass or copper
C.	Diamond
D.	Stainless steel
Answer» B. Brass or copper

Discussion

360.	*$_Twist drills are made of?
A.	High speed steel
B.	Carbon steel
C.	Stainless steel
D.	Either (A) or (B)
Answer» E.

Discussion

361.	*$_The drill spindles are provided with standard taper known as?
A.	Morse taper
B.	Seller's taper
C.	Chapman taper
D.	Brown and Sharpe taper
Answer» B. Seller's taper

Discussion

362.	*$_The helix angle of a drill is __________ for drilling brass.?
A.	Equal to 30¬¨‚àû
B.	Less than 30¬¨‚àû
C.	More than 30¬¨‚àû
D.	None of these
Answer» C. More than 30¬¨‚àû

Discussion

363.	*$_Hard and tough materials like cast iron should be turned at?
A.	Slow speed
B.	High speed
C.	Any speed
D.	Certain specific speed
Answer» B. High speed

Discussion

364.	*$_During the execution of a CNC part program block NO20 GO2 X45.0 Y25.0 R5.0 ; the type of tool motion will be?
A.	Circular Interpolation ‚Äö√ √≠ clockwise
B.	Circular Interpolation ‚Äö√ √≠ counter clockwise
C.	Linear Interpolation
D.	Rapid feed
Answer» B. Circular Interpolation ‚Äö√ √≠ counter clockwise

Discussion

365.	*$_The rake angle of a single point cutting tool corresponds to _________ of a twist drill.?
A.	Lip clearance angle
B.	Helix angle
C.	Point angle
D.	Chisel edge angle
Answer» C. Point angle

Discussion

366.	*$_The main purpose of a boring operation, as compared to drilling, is to?
A.	Drill a hole
B.	Finish the drilled hole
C.	Correct the hole
D.	Enlarge the existing hole
Answer» E.

Discussion

367.	*$_A grinding wheel is said to be of _________ if it holds the abrasive grains more securely.?
A.	Soft grade
B.	Medium grade
C.	Hard grade
D.	None of these
Answer» D. None of these

Discussion

368.	*$_A better machinable metal is one which gives?
A.	Lower chip-tool contact area and larger shear angle
B.	Higher chip-tool contact area and smaller shear angle
C.	Lower chip-tool contact area and smaller shear angle
D.	Higher chip-tool contact area and larger shear angle
Answer» B. Higher chip-tool contact area and smaller shear angle

Discussion

369.	*$_Which of the following parameters govern the value of shear angle in continuous chip formation??
A.	True feed
B.	Chip thickness
C.	Rake angle of the cutting tool
D.	All of these
Answer» E.

Discussion

370.	*$_The operation of producing grooves around the periphery of a cylindrical or conical workpiece is called?
A.	Profile milling
B.	Gang milling
C.	Saw milling
D.	Helical milling
Answer» E.

Discussion

371.	*$_The grooving is an operation of?
A.	Beveling the extreme end of a workpiece
B.	Embossing a diamond shaped pattern on the surface of a workpiece
C.	Reducing the diameter of a workpiece over a very narrow surface
D.	Enlarging the end of a hole cylindrically
Answer» D. Enlarging the end of a hole cylindrically

Discussion

372.	*$_The cutting speed for drilling __________ with high speed steel drills is 24 to 45 m/min.?
A.	Mild steel
B.	Copper
C.	Aluminium
D.	Brass
Answer» B. Copper

Discussion

373.	*$_Down milling is also called?
A.	Conventional milling
B.	Climb milling
C.	End milling
D.	Face milling
Answer» C. End milling

Discussion

374.	*$_Internal gear cutting operation can be performed by?
A.	Milling
B.	Shaping with rack cutter
C.	Shaping with pinion cutter
D.	Hobbing
Answer» D. Hobbing

Discussion

375.	*$_The tail-stock set over required to turn a taper on the entire length of a workpiece having diameters D and d is?
A.	(D - d)/2L
B.	(D - d)/L
C.	(D - d)/2
D.	D - d
Answer» D. D - d

Discussion

376.	*$_The purpose of jigs and fixtures is to?
A.	Increase machining accuracy
B.	Facilitate interchangeability
C.	Decrease expenditure on quality control
D.	All of these
Answer» E.

Discussion

377.	*$_In order to obtain a surface finish in the range of 0.75 ≈í¬∫m to 1.25 ≈í¬∫m , the operation used is called.?
A.	Grinding
B.	Lapping
C.	Honing
D.	Buffing
Answer» B. Lapping

Discussion

378.	*$_Thread grinding requires work speed from?
A.	1 to 3 m/min
B.	5 to 10 m/min
C.	10 to 14 m/min
D.	14 to 20 m/min
Answer» B. 5 to 10 m/min

Discussion

379.	*$_For fast removal of materials during grinding, a _________ grinding wheel is used.?
A.	Course grained
B.	Fine grained
C.	Medium grained
D.	None of these
Answer» B. Fine grained

Discussion

380.	*$_In hot machining, tool is made of?
A.	Tungsten carbide
B.	Brass or copper
C.	Diamond
D.	Stainless steel
Answer» B. Brass or copper

Discussion

381.	*$_Any number of equal divisions can be obtained on milling machine by?
A.	Direct indexing
B.	Simple indexing
C.	Compound indexing
D.	Differential indexing
Answer» C. Compound indexing

Discussion

382.	*$_In grinding irregular, curved, tapered, convex and concave surfaces, the grinder used is?
A.	Cylindrical grinder
B.	Internal grinder
C.	Surface grinder
D.	Tool and cutter grinder
Answer» D. Tool and cutter grinder

Discussion

383.	*$_The cutting tool in a milling machine is mounted on?
A.	Spindle
B.	Arbor
C.	Column
D.	Knee
Answer» C. Column

Discussion

384.	*$_The type of reamer used for reaming soft aluminium or copper, is?
A.	Straight fluted reamer
B.	Left hand spiral fluted reamer
C.	Right hand spiral fluted reamer
D.	Any one of these
Answer» C. Right hand spiral fluted reamer

Discussion

385.	*$_The mechanism of material removal in EDM process is?
A.	Melting and Evaporation
B.	Melting and Corrosion
C.	Erosion and Cavitations
D.	Cavitations and Evaporation
Answer» B. Melting and Corrosion

Discussion

386.	*$_Climb milling is chosen while machining because?
A.	The chip thickness increase gradually
B.	It enables the cutter to dig in and start the cut
C.	The specific power consumption is reduced
D.	Better surface finish can be obtained
Answer» C. The specific power consumption is reduced

Discussion

387.	*$_An important geometrical quantity in the cutting of metals which can be used as a criterion for machinability of metals is?
A.	Cutting speed
B.	Feed rate
C.	Shear angle
D.	Tool geometry
Answer» D. Tool geometry

Discussion

388.	*$_The hardness of a grinding wheel is specified by?
A.	Brinell hardness number
B.	Rockwell hardness number
C.	Vickers pyramid number
D.	Letter of alphabet
Answer» E.

Discussion

389.	*$_Hardness of green sand mould increases with?
A.	Increase in moisture content beyond 6 percent
B.	Increase in permeability
C.	Decrease in permeability
D.	Increase in both moisture content and permeability
Answer» D. Increase in both moisture content and permeability

Discussion

390.	*$_A lathe with four steps on the cone pulley and with back-gears will have?
A.	Four direct speeds
B.	Four indirect speeds
C.	Four direct and four indirect speeds
D.	Eight indirect speeds
Answer» D. Eight indirect speeds

Discussion

391.	/_Two streams of liquid metal which are not hot enough to fuse properly result into a casting defect known as?
A.	Cold shut
B.	Swell
C.	Sand wash
D.	Scab
Answer» B. Swell

Discussion

392.	/_Lathe bed is made of?
A.	Mild steel
B.	Alloy steel
C.	Pig iron
D.	Chilled cast iron
Answer» E.

Discussion

393.	/_The hole to be drilled for tapping is _________ the outside diameter of the thread on the tap.?
A.	Equal to
B.	Smaller than
C.	Greater than
D.	None of these
Answer» C. Greater than

Discussion

394.	/_In oblique cutting of metals, the cutting edge of the tool is?
A.	Perpendicular to the workpiece
B.	Perpendicular to the direction of tool travel
C.	Parallel to the direction of tool travel
D.	Inclined at an angle less than 90¬¨‚àû to the direction of tool travel
Answer» E.

Discussion

395.	/_The guide-ways are of?
A.	Flat type
B.	V-type
C.	Dovetail type
D.	Any one of these
Answer» E.

Discussion

396.	/_A dense structure of a grinding wheel is used for?
A.	Hard materials
B.	Brittle materials
C.	Finishing cuts
D.	All of these
Answer» E.

Discussion

397.	/_With the same tool life, the maximum material per minute is removed by?
A.	Increasing the cutting speed
B.	Decreasing the cutting speed
C.	Increasing the depth of cut
D.	Increasing the feed rate
Answer» D. Increasing the feed rate

Discussion

398.	/_The aluminium oxide abrasive is chiefly used for grinding?
A.	High speed steel
B.	Carbon steel
C.	Wrought iron
D.	All of these
Answer» E.

Discussion

399.	/_High speed steel drills can be operated at about _________ the speed of high carbon steel drills.?
A.	One-half
B.	One-fourth
C.	Double
D.	Four times
Answer» D. Four times

Discussion

400.	/_Which of the following operations is carried out at a minimum cutting velocity if the machines are equally rigid and the tool work materials are the same??
A.	Turning
B.	Grinding
C.	Boring
D.	Milling
Answer» E.

Discussion

Explore topic-wise MCQs in Mechanical Engineering.

The main purpose of a boring operation, as compared to drilling, is to%!

The rake angle of a single point cutting tool corresponds to _________ of a twist drill.%!

During the execution of a CNC part program block NO20 GO2 X45.0 Y25.0 R5.0 ; the type of tool motion will be%!

In grinding irregular, curved, tapered, convex and concave surfaces, the grinder used is%!

Any number of equal divisions can be obtained on milling machine by%!

For fast removal of materials during grinding, a _________ grinding wheel is used.%!

Thread grinding requires work speed from%!

For machining a mild steel workpiece using carbide tool, the maximum material will be removed at a temperature of%!

In hot machining, tool is made of%!

*$_Twist drills are made of?

*$_The drill spindles are provided with standard taper known as?

*$_The helix angle of a drill is __________ for drilling brass.?

*$_Hard and tough materials like cast iron should be turned at?

*$_During the execution of a CNC part program block NO20 GO2 X45.0 Y25.0 R5.0 ; the type of tool motion will be?

*$_The rake angle of a single point cutting tool corresponds to _________ of a twist drill.?

*$_The main purpose of a boring operation, as compared to drilling, is to?

*$_A grinding wheel is said to be of _________ if it holds the abrasive grains more securely.?

*$_A better machinable metal is one which gives?

*$_Which of the following parameters govern the value of shear angle in continuous chip formation??

*$_The operation of producing grooves around the periphery of a cylindrical or conical workpiece is called?

*$_The grooving is an operation of?

*$_The cutting speed for drilling __________ with high speed steel drills is 24 to 45 m/min.?

*$_Down milling is also called?

*$_Internal gear cutting operation can be performed by?

*$_The tail-stock set over required to turn a taper on the entire length of a workpiece having diameters D and d is?

*$_The purpose of jigs and fixtures is to?

*$_In order to obtain a surface finish in the range of 0.75 ≈í¬∫m to 1.25 ≈í¬∫m , the operation used is called.?

*$_Thread grinding requires work speed from?

*$_For fast removal of materials during grinding, a _________ grinding wheel is used.?

*$_In hot machining, tool is made of?

*$_Any number of equal divisions can be obtained on milling machine by?

*$_In grinding irregular, curved, tapered, convex and concave surfaces, the grinder used is?

*$_The cutting tool in a milling machine is mounted on?

*$_The type of reamer used for reaming soft aluminium or copper, is?

*$_The mechanism of material removal in EDM process is?

*$_Climb milling is chosen while machining because?

*$_An important geometrical quantity in the cutting of metals which can be used as a criterion for machinability of metals is?

*$_The hardness of a grinding wheel is specified by?

*$_Hardness of green sand mould increases with?

*$_A lathe with four steps on the cone pulley and with back-gears will have?

*/*_Two streams of liquid metal which are not hot enough to fuse properly result into a casting defect known as?

*/*_Lathe bed is made of?

*/*_The hole to be drilled for tapping is _________ the outside diameter of the thread on the tap.?

*/*_In oblique cutting of metals, the cutting edge of the tool is?

*/*_The guide-ways are of?

*/*_A dense structure of a grinding wheel is used for?

*/*_With the same tool life, the maximum material per minute is removed by?

*/*_The aluminium oxide abrasive is chiefly used for grinding?

*/*_High speed steel drills can be operated at about _________ the speed of high carbon steel drills.?

*/*_Which of the following operations is carried out at a minimum cutting velocity if the machines are equally rigid and the tool work materials are the same??

/_Two streams of liquid metal which are not hot enough to fuse properly result into a casting defect known as?

/_Lathe bed is made of?

/_The hole to be drilled for tapping is _________ the outside diameter of the thread on the tap.?

/_In oblique cutting of metals, the cutting edge of the tool is?

/_The guide-ways are of?

/_A dense structure of a grinding wheel is used for?

/_With the same tool life, the maximum material per minute is removed by?

/_The aluminium oxide abrasive is chiefly used for grinding?

/_High speed steel drills can be operated at about _________ the speed of high carbon steel drills.?

/_Which of the following operations is carried out at a minimum cutting velocity if the machines are equally rigid and the tool work materials are the same??