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Worksheets2nd Semester NSQF - Module 1 - Grinding Machine Wheel Balancing
Total questions: 40
Worksheet time: 20mins
What is the name of part marked as ‘X’ in
cylindrical grinding machine?
Feed handle
Reversing dog
Automatic lever
Rapid feed lever
What is the purpose of side screws provided in
cylindrical grinding machine table?
Align the wheel head
Align the work table
Align the job
Align the machine
What is the depth of cut for rough dressing a
grinding wheel?
0.01 to 0.05 mm
0.01 to 0.07 mm
0.02 to 0.05 mm
0.02 to 0.07 mm
What is the depth of cut for finish dressing a
grinding wheel?
0.02 to 0.5 mm
0.02 to 0.7 mm
0.01 to 0.05 mm
0.01 to 0.07 mm
What is the name of grinding operation?
Grinding plain
cylinder
Grinding taper
cylinder
Grinding external
centreless
Grinding parallel
bore
What is used to hold the bush for grinding external diameter?
Steady rest
Lathe chuck
Face plate
Mandrel
Which grinding machine is versatile and to
perform a variety of grinding operation?
Cylindrical grinder
Centreless grinder
Universal grinder
Surface grinder
Which grinding machine head stock, wheel head
and table is swivelled to any desired angle?
Surface grinder
Cylindrical grinder
Centreless grinder
Universal grinder
What is the name of part marked as ‘X in
universal grinder?
Wheel head
Upper table
Head stock
Chuck
Which grinding machine is suitable for tool room
work?
Surface grinder
Universal grinder
Cylindrical grinder
Centreless grinder
What is the name of grinding machine?
Surface grinder
Universal grinder
Cylindrical grinder
Centreless grinder
What is the material of washer used in between
the grinding wheel and flange while mounting?
Aluminium sheet
Cardboard
Copper sheet
Brass sheet
What is the part marked as ‘X’ in the grinding
wheel mounting?
Outer flange
Paper washer
Inner flange
Spindle nut
Which ringing sound indicate the wheel is not
cracked?
Abnormal
Dull
Clear
Very loud
What is the defect in grinding wheel?
Damaged mounting
bush
Chipped edge
Cracks
Damaged paper
washer
Which is visual inspection of grinding wheel?
Ringing sound
Cracks
Dull sound
Abnormal sound
Which dresser is harder and more expensive?
Grey bort
Black diamond
Brown bort
Abrasive stick
What type of dresser is used for precision
grinding?
Abrasive stick
Star dresser
Diamond
Cylinder dresser
What types of wheel dresser is used in tool room
for dressing grinding wheels?
Star dresser
Abrasive sticks
Corrugated disc type
Locked wheel
dresser
What type of dresser is used in smooth wheels for
rough grinding?
Corrugated disc type
Star dresser
Locked wheel
dresser
Cylinder dresser
What is the depth of cut for finish grinding in cylindrical grinder?
0.0025 to 0.04 mm
0.0025 to 0.03 mm
0.0025 to 0.02 mm
0.0025 to 0.01 mm
How much material to be left for finish margin
while cylindrical grinding?
0.02 - 0.07 mm
0.02 - 0.09 mm
0.02 - 0.05 mm
0.02 - 0.10 mm
What is the depth of cut for rough grinding in
cylindrical grinding operation?
0.02 to 0.05 mm
0.02 to 0.04 mm
0.02 to 0.06 mm
0.02 to 0.07 mm
What is the part marked as ‘X’?
Wheel
Weights
Balancing ways
Arbor
Which is suitable point of diamond dresser used
for dressing a grinding wheel while surface
grinding?
Sharp
Dull
Flat
Round
Which is suitable point of diamond dresser used
for dressing a grinding wheel while cylindrical
grinding?
Flat
Dull
Sharp
Worn
Which dresser will do more work and last longer?
Black diamond
Abrasive stick
Grey bort
Star dresser
Which part should be perfectly horizontal while
static balancing of grinding wheel?
Arbor
Wheel
Weight
Balancing ways
Which operation is carried out on abrasive wheel for effective precision grinding forms production?
Truing
Filing
Dressing
Scraping
What is the condition of abrasive wheel while
precision cylindrical grinding?
Vertical to the axis
of rotation
Concentric to the
axis of rotation
Eccentric to the axis
of rotation
Taper to the axis of
rotation
What is the process carried out?
Checking ovality
Checking parallelism
Checking
eccentricity
Checking
squareness
What is done after re-dressing the grinding wheel during service?
Truing
Re - balancing
Grinding
Scraping
Where is grinding wheel stored ?
Wet place
Furnace
Floor
Dry place
What is the necessity of wheel balancing?
To increase chatter
marks on the work surface
To decrease the life
of grinding wheel
To damage of the
bearings
To prevent wheel
vibration and breakage
What process is carried out before balancing of
grinding wheel?
Grinding
Truing
Dressing
Scraping
How should be the weight and density of the
grinding wheel throughout its circumference?
Un -uniform
Uneven
Ellipse
Uniform
What is the meaning of grinding wheel balancing?
To rotate eccentric
to the job axis
To rotate concentric
to the job axis
To rotate concentric
to the wheel axis
To rotate concentric
to the job and wheel
axis
What will happen if paper washers are not used
while mounting a grinding wheel?
Wheel tightened
properly
Wheel breaks
Wheel not tightened
properly
Wheel develops
crack
What is done to obtain specified surface finish
and dimensional accuracy while precision
grinding?
Fixing the new
abrasive wheel
Periodical dressing
the abrasive wheel
Truing the abrasive
wheel
Scraping the
abrasive wheel
What is the reason for wheel breakage?
Less depth of cut
Work piece is not
held properly
Applied sufficient
coolant
Used correct size of
bolts and nuts
