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400 Important Manufacturing And Production Technology MCQ Question and Answer | PDF Free Download
1.The cutting speed for counter-boring should be _________ that of drilling operation.
- AEqual to
- BLess than
- CGreater than
- DNone of these
2.The hardness of a grinding wheel is specified by
- ABrinell hardness number
- BRockwell hardness number
- CVickers pyramid number
- DLetter of alphabet
3.In metal machining, the zone where the heat is generated due to friction between the moving chip and the tool face, is called
- AFriction zone
- BWork-tool contact zone
- CShear zone
- DNone of these
4.The process of removing metal by a cutter which is rotated in the same direction of travel of workpiece, is called
- AUp milling
- BDown milling
- CFace milling
- DEnd milling
5.The process of removing metal by a cutter which is rotated against the direction of travel of workpiece, is called
- AUp milling
- BDown milling
- CFace Milling
- DEnd Milling
6.The cutting tool in a milling machine is mounted on
- ASpindle
- BArbor
- CColumn
- DKnee
7.The in-feed grinding is used to
- AProduce tapers
- BGrind shoulders and formed surfaces
- CGrind long, slender shafts or bars
- DAll of these
8.In order to grind soft material
- ACoarse grained grinding wheel is used
- BFine grained grinding wheel is used
- CMedium grained grinding wheel is used
- DAny one of these
9.In gear hobbing
- AOnly hob rotates
- BOnly gear blank rotates
- CBoth hob and gear blank rotates
- DNeither hob nor gear blank rotates
10.Hardness of green sand mould increases with
- AIncrease in moisture content beyond 6 percent
- BIncrease in permeability
- CDecrease in permeability
- DIncrease in both moisture content and permeability
11.Tumbler gears in lathe are used to
- AReduce the spindle speed
- BCut gears
- CGive desired direction of movement to the lathe carriage
- DDrill a workpiece
12.The chamfering is an essential operation after
- AKnurling
- BRough turning
- CBoring
- DThread cutting
13.The tool may fail due to
- ACracking at the cutting edge due to thermal stresses
- BChipping of the cutting edge
- CPlastic deformation of the cutting edge
- DAll of these
14.A mandrel is used to hold
- AA mandrel is used to hold
- BA heavy work
- CA thin work
- DNone of these
15.The type of reamer used for reaming soft aluminium or copper, is
- AStraight fluted reamer
- BLeft hand spiral fluted reamer
- CRight hand spiral fluted reamer
- DAny one of these
16.In a shaper, the metal is removed during
- AForward stroke
- BReturn stroke
- CBoth the forward and return strokes
- DNeither the forward nor the return stroke
17.Crater wear is predominant in
- ACarbon tool steels
- BTungsten carbide tools
- CHigh speed steel tools
- DCeramic tools
18.In which of the following machine, the work is usually rotated while the drill is fed into work?
- ASensitive drilling machine
- BRadial drilling machine
- CGang drilling machine
- DDeep hole drilling machine
19.It is desired to perform the operations like drilling, reaming, counter-boring etc. on a work piece. Which of the following machine will be used?
- ASensitive drilling machine
- BRadial drilling machine
- CGang drilling machine
- DMultiple spindle drilling machine
20.An important geometrical quantity in the cutting of metals which can be used as a criterion for machinability of metals is
- ACutting speed
- BFeed rate
- CShear angle
- DTool geometry