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400 Important Manufacturing And Production Technology MCQ Question and Answer | PDF Free Download
1.The vector sum of cutting velocity and chip velocity is __________ shear velocity.
- AEqual to
- BLess than
- CMore than
- DNone of these
2.The increase in depth of cut and feed rate _________ surface finish.
- AImproves
- BDeteriorates
- CDoes not effect
- DNone of these
3.Larger end cutting edge angle _________ tool life.
- AIncreases
- BDecreases
- CDoes not effect
- DNone of these
4.Internal or external threads of different pitches can be produced by
- APantograph milling machine
- BProfiling machine
- CPlanetary milling machine
- DPiano miller
5.A type of welding flows, which is the result of a perfect proportion and mixture of acetylene and oxygen and is used for fusion welding of steel and cast iron, is
- ACarburizing flame
- BOxidizing flame
- COxy-acetylene flame
- DNeutral flame
6.The lathe spindles are usually made hollow and provided with
- AInternal taper
- BExternal taper
- CInternal and external taper
- DNo taper
7.A shaft has a dimension, φ9 +0.025⁺⁰∙⁰⁰⁹, the respective values of fundamental deviation and tolerance are
- A−0.025, ±0.008
- B−0.025, 0.016
- C−0.009, ± 0.008
- D−0.009, 0.016
8.In transverse grinding
- AThe work is reciprocated as the wheel feeds to produce cylinders longer than the width of wheel face
- BThe work rotates in a fixed position as the wheel feeds to produce cylinders equal to or shorter than the width of wheel face
- CThe work is reciprocated as the wheel feeds to produce cylinders shorter than the width of wheel face
- DThe work rotates in a fixed position as the wheel feeds to produce cylinders longer than the width of wheel face
9.Tool signature consists of __________ elements.
- ATwo
- BFour
- CFive
- DSeven
10.The lead screw of a lathe has _________ threads.
- ASingle start
- BDouble start
- CMulti-start
- DAny one of these
11.A broach has
- ARoughing teeth
- BSemi-finishing teeth
- CFinishing teeth
- DAll of these
12.A taper tap has
- AIts end tapered for about three or four threads
- BIts end tapered for about eight or ten threads
- CFull threads for the whole of its length
- DNone of the above
13.In a plain milling machine, the table can be moved
- ALongitudinally
- BCrosswise
- CVertically
- DAll of these
14.The top and sides of the table of a shaper usually have
- AL-type slots
- BT-type slots
- CI-type slots
- DAny one of these
15.When the shear angle is small
- APath of shear is short and chip is thin
- BPath of shear is large and chip is thick
- CPath of shear is short and chip is thick
- DPath of shear is large and chip is thin
16.In metal cutting operations, the shear angle is the angle made by the shear plane with the
- ADirection of the tool axis
- BDirection of tool travel
- CPerpendicular to the direction of the tool axis
- DCentral plane of the workpiece
17.When 3-2-1 principle is used to support and locate a three dimensional work-piece during machining, the number of degrees of freedom that are restricted is
- A7
- B8
- C9
- D10
18.A jig is defined as a device which
- AHolds and locates a workpiece and guides and controls one or more cutting tools
- BHolds and locates a workpiece during an inspection or for a manufacturing operation
- CIs used to check the accuracy of workpiece
- DAll of the above
19.The type of tool used on milling machine and broaching machine is
- ASingle point cutting tool
- BTwo point cutting tool
- CThree point cutting tool
- DMulti-point cutting tool
20.Cast iron during machining produces
- AContinuous chips
- BDiscontinuous chips
- CContinuous chips with built-up edge
- DNone of these