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400 Important Manufacturing And Production Technology MCQ Question and Answer | PDF Free Download
1.The angle between the face and flank of the single point cutting tool is known as
- ARake angle
- BClearance angle
- CLip angle
- DPoint angle
2.The factor which affects the tool life is
- ATool geometry
- BCutting speed
- CFeed rate
- DAll of these
3.In metal cutting, use of low feeds and high cutting speeds is desired when the objective is
- AHigh metal removal rate
- BDry machining
- CUse of soft cutting tool
- DSurface finish
4.Which of the following operations can be performed with milling cutters?
- ACutting key ways on shafts
- BCutting external screw threads
- CCutting teeth of spur gears
- DAll of these
5.In metal machining, the zone where the maximum heat is generated due to the plastic deformation of metal, is called
- AFriction zone
- BWork-tool contact zone
- CShear zone
- DNone of these
6.In lapping operation, the amount of metal removed is
- A0.005 to 0.01 mm
- B0.01 to 0.1 mm
- C0.05 to 0.1 mm
- D0.5 to 1 mm
7.When the temperature of a solid metal increases
- AStrength of the metal decreases but ductility increases
- BBoth strength and ductility of the metal decreases
- CBoth strength and ductility of the metal increases
- DStrength of the metal increases but ductility decreases
8.The factor considered for evaluation of machinability is
- ACutting forces and power consumption
- BTool life
- CType of chips and shear angle
- DAll of these
9.The width of cutting edge of a parting off tool varies from
- A3 to 12 mm
- B5 to 20 mm
- C8 to 30 mm
- D15 to 40 mm
10.A twist drill is a
- ASide cutting tool
- BFront cutting tool
- CEnd cutting tool
- DNone of these
11.While current is shut down in the welding circuit, what kind of voltage exists between the output terminals of the welding machine?
- AGTAW
- BOpen air cut voltage
- CKerf
- DGouging
12.In ultrasonic machining, tool is made of
- ATungsten carbide
- BBrass or copper
- CDiamond
- DStainless steel
13.In hot machining, tool is made of
- ATungsten carbide
- BBrass or copper
- CDiamond
- DStainless steel
14.The point angle of a drill, for drilling stainless steel, is
- A90°
- B118°
- C135
- D150°
15.In American Standard Association (ASA) system, if the tool nomenclature is 8-6-5-5-10-15-2 mm, then the side rake angle will be
- A5°
- B6°
- C8°
- D10°
16.Chip breakers are used to
- AIncrease tool life
- BRemove chips from bed
- CBreak the chips into short segments
- DTo minimize heat generation
17.Negative rakes are used for
- ACarbide tools
- BHeavy loads
- CHarder materials
- DAll of these
18.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?
- ATurning
- BGrinding
- CBoring
- DMilling
19.In electro discharge machining, tool is made of
- ABrass
- BCopper
- CCopper tungsten alloy
- DAll of these
20.In a gating system, the ratio 1: 2: 4 represents
- ASprue base area: runner area: ingate area
- BPouring basin area: ingate area: runner area
- CSprue base area: ingate area: casting area
- DRunner area: ingate area: casting area