EFFECT OF VARIOUS ANGLES MCQS
- Crack is developed in grinding wheel due to
- The face of the wet type grinder is crowned slightly to minimise the amount of contact between the wheel and the workThis reduces the possibility of the carbide tip
- In grinding operation, for grinding harder material
- The following material is used for diamond lapping
- A dense structure in grinding wheel is used for
- Pick up the incorrect statement about AL,O, grinding wheel
- Ball grinding compared to cylindrical and flat grinding requires
- Hard materials require
- Soft ductile materials require
- When the grains of a grinding wheel become dulled, then it needs to be
- The hardness of a grinding wheel is specified by
- Honing operation produces normal quality of finish of the order of
- A 5 mm thick shoulder on a 100 mm diameter shaft will be ground by the following operation
- When the area of contact between wheel and work is small, then following grade should be used for grinding wheel
- The standard marking system for grinding wheels has following number of symbols
- A grinding wheel is balanced as follows so that itwill not vibrate
- The operation of sharpening a grinding wheel is called
- 3The most popular chuck used on surface grinders i
- An open structure of a grinding wheel is used for
- Dressing of grinding wheels to restore sharpnese is done by
- In a hard grade grinding wheel, the abrasives
- When grinding wheels become loaded or glazed, they must be
- For grinding high tensile strength materials, following abrasive is recommended
- A centre type cylindrical grinder that permits swivelling the wheel head and head stock at an angle to the table ways is called a
- The first symbol in a grinding wheel code is the
- In grinding operation, for faster removal of material
- A grinding wheel is completely specified by thefollowing elements taken in order
- 3Which of the following parts of a universal grinding machine can be swivelled with respect to table travel ?
- Tolerances are specified
- Drilling is an example of
(a) high speed
(b) generation of heat
(c) hard work
(d) slower speed
(e) none of the above
high speed
(a) being damaged or destroyed by excessive heat
(b) being ground away too rapidly
(c) damaging the wheel by causing it to wear rapidly
(d) none of the above.
(e) all of the above
being damaged or destroyed by excessive heat
(a) softer grade is used
(b) high grade is used
(c) medium grade is used
(d) any grade may be used
(e) none of the above.
softer grade is used
(a) copper
(b) HSS
(c) high carbon steel
(d) aluminium oxide
(e) none of the above
none of the above
(a) ductile material
(b) heavy cuts
(c) hard material
(d) elastic material
(e) finishing cuts.
finishing cuts.
(a) it is less tough than SiC
(b) it is suitable for high tensile strength material
(c) it is used for grinding hardened steel, hard bronze, steel billets etc.
(d) it is less hard than SiC
(e) it is more shock resistant.
it is less tough than SiC
(a) harder wheel
(b) softer wheel
(c) medium wheel
(d) harder/softer wheel depending on material
(e) softest wheel.
harder wheel
(a) fine grit sizes and hard grades
(b) coarse grit sizes and hard grades
(c) coarse grit sizes and soft grades
(d) fine grit sizes and soft grades
(e) none of the above.
fine grit sizes and soft grades
(a) fine grit sizes and hard grades
(b) coarse grit sizes and hard grades
(c) coarse grit sizes and soft grades
(d) fine grit sizes and soft grades
(e) none of the above.
coarse grit sizes and hard grades
(a) replaced
(b) trued
(c) dressed
(d) treated
(e) reground.
dressed
(a) BHN
(b) Rockwell hardness number
(c) LPN
(d) search test
(e) letter of alphabet.
letter of alphabet.
(a) 0.01 to 0.08 um CLA value
(b) 0.08 to 0.2 um CLA value
(c) 0.2 to 0.4 um CLA value
(d) 0.4 to 0.8 um CLA value
(e) 0.8 to 1.5 um CLA value.
0.2 to 0.4 um CLA value
(a) cylindrical grinding
(b) centreless grinding
(c) plunge grinding
(d) surface grinding
(e) diamond dressing
plunge grinding
(a) harder
(b) hardest
(c) medium
(d) softer
(e) softest.
softer
(a) 1
(b) 2
(c) 3
(d) 4
(e) 5
5
(a) putting balancing weights on the wheel
(b) enlarging the spindle hole
(c) using wheel dampers
(d) dressing the wheel with dressing tool
(e) none of the above.
dressing the wheel with dressing tool
(a) trueing
(b) dressing
(c) aligning
(d) balancing
(e) bonding.
dressing
(a) hydraulic chuck
(b) pneumatic chuck
(c) magnetic chuck
(d) three-jaw chuck
(e) independent chuck
magnetic chuck
(a) ductile materials
(b) tough materials
(c) soft materials
(d) heavy cuts
(e) all of the above.
all of the above.
(a) pumice stone dresser
(b) tool steel dresser
(c) diamond dresser
(d) sharp edged H.S.Scutter
(e) solid carbon steel bar.
diamond dresser
(a) have dense structure
(b) are hard
(c) are of fine grain
(d) get lodged off easily
(e) are held more securely.
are held more securely.
(a) balanced properly
(b) aligned accurately
(c) trued
(d) dressed
(e) discarded.
dressed
(a) Al,Og
(b) SiC
(c) diamond
(d) corundum
(e) boron carbide.
Al,Og
(a) tool and cutter grinder
(b) surface grinder
(c) internal grinding machine
(d) bench grinder
(e) universal grinder
universal grinder
(a) bond type
(b) abrasive type
(c) grain size
(d) structure
(e) bond grade.
abrasive type
(a) fine grain size is used
(b) medium grain size is used
(c) coarse grain size is used
(d) any grain size may be used
(e) none of the above.
coarse grain size is used
(a) type of abrasive, grain size, grade, structure, bond
(b) grain size, grade, structure, type of abrasive, bond
(c) structure, bond, grain size, type of abrasive, grade
(d) bond, structure, grain size, type of abrasive, grade, bond
(e) none of the above.
type of abrasive, grain size, grade, structure, bond
(a) grinding wheel
(b) table
(c) headstock
(d) table slide
(e) all of the above.
table slide
(a) to obtain desired fits
(b) because it is not possible to manufacture a size exactly
(c) to obtain higher accuracy
(d) to have proper allowances
(e) to have proper inspection.
because it is not possible to manufacture a size exactly
(a) uniform cutting
(b) simple cutting
(c) orthogonal cutting
(d) oblique cutting
(e) complex cutting.
oblique cutting
Cover Topic
“types of angles”,”angles names”,”corresponding angles”,”corresponding angles”
