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WorksheetsPrayatna'24 - Dimensional Mastery
Total questions: 20
Worksheet time: 20mins
Grinding ratio is defined as
Vol. of wheel wear / Vol. of material removed
Vol. of material removed / Vol. of wheel wear
Longitudinal feed / Transverse feed
Cutting speed / feed
Binding material used in cemented carbide cutting tools is
Graphite
Tungsten
Nickel
Cobalt
What is a Glazed grinding wheel?
Grains have become blunt but do not fall out
It becomes black due to burning
Part of the wheel is chipped
None of the above
Among the processes given below, the highest specific energy is consumed by.
Turning
Drilling
Milling
Grinding
Internal gears are manufactured by
Hobbing
Shaping with pinion cutter
Shaping with rack cutter milling
Milling
If the bulk modulus and shear modulus are 1 and 2 respectively, what is the value of young's modulus of elasticity?
3
3.1
3.6
3.9
Abrasive material used in grinding wheel selected for grinding ferrous alloys is
Silicon
Diamond
Aluminum oxide (Al2O3)
Boron Carbide
High Hardness work pieces can be machined using _____.
Lathe
Milling Machine
Drilling Machine
Electric Discharge Machine
Tool life is estimated using
VTn = C
(VT)n = C
VnT = C
VnTn = C
Producing super finish on a flat surface is done through
Honing
Grinding
Lapping
Buffing
The process of enlarging the end of an existing hole to accommodate the head of socket screw is called ________
Spot facing
Boring
Counter-boring
Counter-sinking
More tools can be mounted using
Tool post
Tail stock
Head stock
Turret
Maximum energy that a given component can absorb without undergoing any permanent deformation up to elastic limit is known as
Proof Resilience
Toughness
Ductility
Hardness
What is the point of contraflexure ?
The point at which shear force is maximum
The point at which bending moment is maximum
The point at which shear force is zero
The point at which bending moment is zero.
Worm gears are easier to produce using
Gear shaper
Gear hobbing
Gear milling
Gear grinding
The specification of a grinding wheel is given by:
A - 46 - B - 4 - V – 17
Which of the following is TRUE for wheel specification?
It is having a grain size of 4
It is having a grade of 'V'
Is having a grain size of 17
It is having a grade of 'B'.
Which of the following materials requires the largest shrinkage allowance, while making a pattern for casting?
Brass
Copper
Bismuth
Cast Iron
“Built Up Edge” is formed while machining __________ material at ______ speeds.
Ductile/High
Ductile/Low
Brittle/High
Brittle/Low
In shaper, the job is kept______
Reciprocating
Stationary
Rotating
None of the above
The machining process that will be most appropriate to drill a rectangular hole in a high strength alloy is ________
Chemical machining (CHM)
Electric Discharge Machining (EDM)
Ultrasonic Machining (USM)
Drilling
