MACHANICS OF METAL CUTTING MCQS
- The machining operation of cutting a key-way inside a drilled hole is known as
- The process of trimming is associated with
- The numerical control system which is applicable to a milling machine is called the
- The broaching operation in which the work moves past the stationary tool is called
- The point-to-point system of numerical control can be applied only to the conventional
- The following machine should be specified when complex parts in short run quantities with variation have to be produced
- TAB code is used
- Relief or clearance angles on H.S.Stools usually vary from
- The purpose of providing relief or clearance angleson tools is to
- High speed steel tools compared to carbon steel tools operate at
- The cutting speed of H.S.Smilling cutter to machine aluminium is
- In starddle milling, following number of side milling cutters are mounted on the arbor
- The following cutting fluid is used when milling with carbide tipped milling cutter
- Which of the following is not a multi-point cutting tool ?
- The included angle of taper in collet is usually
- Which of the following machines utilise fly cutter?
- The positive radial rake angle in most of the high speed milling cutters is
- Pick up the correct statement for milling
- A right hand tool is one which is used to
- For turning mild steel, type of tool used is
- Negative rakes are used for
- The helix angle of the teeth of a heavy duty plain milling cutter is of the order of
- Purpose of side rake is to
- Relief angles on carbide tips are usually provided between
- A grinding wheel gets glazed (shining cutting edges) due to
- In grinding operation, for grinding softer materials
- Maximum cutting angles are used for machiningg
- A work on the milling machine can be indexed by
- In tool signature, nose radius is indicated
- Reaming is the operation of
(a) broaching
(b) reaming
(c) tapping
(d) boring
(e) counter sinking.
broaching
(a) electroplating
(b) forging
(c) polishing
(d) machining
(e) press work.
press work.
(a) point-to-point system
(b) continuous path system
(c) zig-zag machining system
(d) straight cut-system
(e) contouring system.
continuous path system
(a) pull broaching
(b) push broaching
(c) surface broaching
(d) continuous broaching
(e) full broaching.
surface broaching
(a) drilling machine or jig boring operations
(b) milling operations
(c) shaper operations
(d) lathes
(e) grinder.
drilling machine or jig boring operations
(a) copying
(b) NC machine
(c) transfer machine
(d) electro-chemical milling machine
(e) non-conventional machines.
NC machine
(a) to leave space between words
(b) at the end of a block
(c) to align the information properly on the type written copy
(d) for staring fresh instruction
(e) any one of the above.
to align the information properly on the type written copy
(a) 0 to 30°
(b) 3 to 10°
(c) 10 to 15°
(d) 15 to 20°
(e) 20 to 30°
3 to 10°
(a) permit chip formation
(b) facilitate easy flow of chips
(c) strain harden the material
(d) strengthen the tool
(e) prevent tool from rubbing on the work.
prevent tool from rubbing on the work.
(a) 2-3 times higher spee
(b) same speed
(c) 2-3 times lower speed
(d) 3-5 times higher speed
(e) 5-8 times higher speed.
2-3 times higher spee
(a) 50-80 m/mt
(b) 25-40 m/mt
(c) 100-160 m/mt
(d) 180-240 m/mt
(e) 240-400 m/mt.
180-240 m/mt
(a) 1
(b) 2
(c) 3
(d) 4
(e) none of the above.
2
(a) kerosene
(b) lard oil
(c) water
(d) CO
(e) dry.
dry.
(a) drill
(b) reamer
(c) milling cutter
(d) parting tool
(e) grinding wheel.
parting tool
(a) 44581
(b) 44691
(c) 30
(d) 45
(e) 60°
30
(a) lathe
(b) planer
(c) shaper
(d) broaching
(e) milling machine.
milling machine.
(a) – 5 to 0°
(b) 0-5°
(c) 5 10°
(d) 10 – 15°
(e) 15 – to 25°
10 – 15°
(a) cutter is rotated in the opposite direction of travel of job
(b) thickness of chip is maximum at the beginning of cut
(c) cutting force is directed downwards
(d) coolant can be easily poured on the cutting edge
(e) all of the above.
cutter is rotated in the opposite direction of travel of job
(a) start a cut from tailstock and cut toward the headstock
(b) start a cut from head stock and cut toward the tailstock
(c) start facing at the centre and cut outward
(d) (a) and (c) above
(e) (6) and (c) above.
(a) and (c) above
(a) left hand type
(b) right hand type
(c) any one of the two
(d) depends on cutting angles and tool material
(e) none of the above.
left hand type
(a) harder materials
(b) heavy loads
(c) all of the above
(d) carbide tools
(e) none of the above.
all of the above
(a) 0° to 5°
(b) – 15° to 0°
(c) 25° to 45°
(d) 10° to 20°
(e) 45° to 60°.
25° to 45°
(a) avoid work from rubbing against tool
(b) strengthen tool edge
(c) control chip flow
(d) shear off the metal.
(e) break chips
control chip flow
(a) 5- 8°
(b) 3-5°
(c) 12 15
(d) 3 12
(e) 15-20°
3-5°
(a) wear of abrasive grains
(b) breaking up of abrasive grains
(c) wear of bond
(d) cracks of grinding wheel
(e) embedding of fine chips and metal powder on wheel.
wear of abrasive grains
(a) coarser grain size is used
(b) fine grain size is used
(c) medium grain size is used
(d) any grain size may be used
(e) none of the above.
coarser grain size is used
(a) cast iron
(b) mild steel
(c) free machining steels
(d) aluminium alloys.
(e) nickel alloy
aluminium alloys.
(a) universal milling attachment
(b) chasing dial
(c) dividing head attachment
(d) manipulating vertical horizontal and movements
(e) rotary tables.
dividing head attachment
(a) in the beginning
(b) at the end
(c) in the middle
(d) not indicated
(e) none of the above.
at the end
(a) enlarging the end of a hole cylindrically
(b) cone shaped enlargement of the end of a hole
(c) smoothing and squaring the surface around a hole
(d) sizing and finishing a hole
(e) none of the above.
sizing and finishing a hole
Cover Topic
“introduction to metal cutting”,”basics of metal cutting”,”theory of metal cutting solved problems”
