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Multiple Choice Question & Answer

YB WEB DESK. Dated: 11/24/2021 12:58:18 PM

Manufacturing Processes MCQ Questions and Answers
1- Following material is not a very good electrode in electric discharge machining
process
Graphite
Copper
Gray cast iron
Tungsten
2- Hot working of metals is carried out ___ the recrystallization temperature.
above
below
at
none of the above
3- Cylinder blocks of internal combustion engine are made by
casting
extrusion
forging
drilling and broaching
4- Increasing the feed rate in abrasive water jet machining
improves the surface finish
decreases the drag
deteriorates the surface finish
none of the options
5- Which of the following types of surface is produced by Facing operation on lathe
machine?
A cylindrical surface
A plane surface
A tapered surface
A hole
6- For Grinding steels, the preferred abrasive is
silicon carbide
aluminium oxide
diamond
cubic boron nitride
7- In __________ welding , the heat required for welding is produced by means of
the electrical resistance between the two members to be joined
Gas
Spot
Adhesive
Arc
8- Which of the following is not a welding joint?
Riveted joint
Lap joint
Corner joint
T-joint
9- The cavity, made in a suitable refractory material that can withstand the high temperature,
into which molten metal can be poured is known as
Mould
Pattern
Core
None of the above
10- The process in which the metal is heated and then shaped by plastic deformation
is called
Forging
Welding
Threading
None of the above
11- Joining two sheets of metal at the edges, without use of fasteners, welding or
other joining processes is called
Hemming
Flanging
Beading
Seaming
12- The process of shaping a flat blank into a three-dimensional hollow component
without any appreciable change in sheet thickness is called
Drawing
Coining
Blanking
None of the above
13- External taper can be obtained by
taper attachment
form tool
compound rest
tail stock offset
14- In which of the following welding processes filler material is used?
Spot welding
Projection welding
Seam welding
None of the above
15- Electrodes for electrical-discharge machining are usually made of
Material harder than work-piece material
Material softer than work-piece material
Very hard and brittle material
None of these
16- Which of the following is having the highest material removal rate?
Electrical-discharge machining
Laser beam machining
Plasma arc machining
All of these having equal material removal rate
17- Which of the following is not a forming process?
Rolling
Forging
Machining
Extrusion
18- Which of the following process requires vacuum?
Electrical-discharge machining
Laser beam machining
Plasma arc machining
Electron-beam machining
19- Among the following ceramics which one has the highest hardness?
Aluminium oxide
Quartz
Boron carbide
Silicon carbide
20- Reflectivity is an important physical parameter in
Electrical-discharge machining
Laser beam machining
Electro-chemical machining
Water-jet machining
AnswErs:
1-, 2-, 3-, 4-, 5-, 6-, 7-, 8-, 9-, 10-, 11-, 12-, 13-, 14-, 15-, 16-, 17-, 18-, 19-, 20-