- A cutting tool used to make a recess at the top of a drilled hole for a flat head machine screw is known as
- Which of the following drilling machine is not equipped with power feeds ?
- When a number of single spindle drilling machine columns are placed side by side on a common work table, the machine is known as
- The purpose of reaming is
- For reaming holes with solid reamers, reamer is mounted in
- Reamer is always held in
- Solid reamers do almost all their cutting with
- The tool used to withdraw a drill from its sleeve i called
- The depth of a drilled hole is measured from the work surface to
- The function of flutes of the reamer is to
- When drilling cast iron, the following coolant should be used
- For reaming purposes, the diameter of drill hole upto size of 25 mm should be made smaller than the desired final size by
- The cutting speed to be used in reaming a hole in comparison to speed used in drilling that hole should be
- The operation of threading a drilled hole is called
- A fluted tool used to cut internal threads is called:
- Hand-tapping is an operation for generation o internal threadsThe number of taps generally usea for hand tapping are
- For making a chamfer on the edge of a hole, the following operation is required
- The chips formed in making threads by plug tap
- A tap drill
- Nominal diameter ofa bolt or screw is
- Bottoming tap is used
- Atool used in cutting and external thread is called a
- Following type of reamer is used for soft aluminium or copper
- Following type of reamer is used for blind hole
- Screw threads may be cut on a 10 mm diasteel rod by using
- Fluteless taps
- For setting the heads of socket-head cap screw flushor below the surface, following operation is required
- For tapping purpose, drilling is done by a drill which cuts a hole
- In down milling cutter teeth and workpiece move in
- In which type of milling operation, the chip is cut off at thinnest place and the chip thickness increases along chip length
(a) a core drill
(b) a spade drill
(c) a reamer
(d) an end mill
(e) a countersink tool.
a countersink tool.
(a) sensitive drill press
(b) multiple-spindle drilling machine
(c) radial drilling machine
(d) gang drilling machine
(e) none pf the above.
sensitive drill press
(a) radial drilling machine
(b) gang drilling machine
(c) multiple-spindle drilling machine
(d) universal drilling machine
(e) pillar type drilling machine.
gang drilling machine
(a) for making a hole initially
(b) to enlarge the diameter of the hole
(c) to improve the finish of the hole
(d) to achieve correct diameter
(e) to correct location of hole.
to improve the finish of the hole
(a) a rigid holder
(b) a floating holder
(c) a semi-rigid holder
(d) a collet
(e) universal holder.
a floating holder
(a) mandrel
(b) floating chuck
(c) collet chuck
(d) self and centering chuck
(e) universal chuck.
mandrel
(a) flutes
(b) bottom-most surface
(c) 45° chamfered front end
(d) none of the above,
(e) all of the abovee
45° chamfered front end
(a) drift
(b) allen key
(c) drill puller
(d) taper key
(e) none of the above.
drift
(a) the point made by the drill
(b) the depth of the full diameter of the drill
(c) a point midway between the point and full diameter
(d) none of the above.
(e) all of the above
all of the above
(a) cut the metal
(b) guide the reamer
(c) slightly improve the finish
(d) (6) and (c) above
(e) none of the above.
(6) and (c) above
(a) kerosene
(b) lard oil
(c) compressed air
(d) water with soluble oil
(e) none of the above.
compressed air
(a) 0.01 mm
(b) 0.05 mm
(c) 0.1 mm
(d) 0.5 mm
(e) 1.0 mm.
0.1 mm
(a) same
(b) more
(c) less
(d) could be any speed
(e) as large as possible.
same
(a) lapping
(b) reaming
(c) broaching
(d) tapping
(e) threading.
tapping
(a) a tap
(b) a chisel
(c) a die
(d) an end mill
(e) spade drill.
a tap
(a) 2
(b) 1
(c) 4
(d) 3
(e) depends on the diameter of the hole.
3
(a) counter sinking
(b) spot facing
(c) counter boring
(d) reaming
(e) wide drilling.
counter sinking
(a) get out through grooves
(b) get out along with lubricant
(c) get out through flutes
(d) cannot get out
(e) none of the above.
get out through flutes
(a) is a special type of drill
(b) does drilling and tapping operations simultaneously
(c) is merely a convenient way to refer to the proper size drill to be used before using a tap
(d) does not exist
(e) none of the above.
is merely a convenient way to refer to the proper size drill to be used before using a tap
(a) larger than the actual diameter
(b) smaller than the actual diameter
(c) same as the actual diameter
(d) depends on the range in which actual diameter falls
(e) none of the abovve.
larger than the actual diameter
(a) for most of the threading applications
(b) for threading in bottom surface
(c) only for threading in blind holes
(d) does not exists
(e) none of the above.
only for threading in blind holes
(a) twist drill
(b) tap
(c) die
(d) end mill
(e) half nut.
die
(a) straight fluted
(b) left hand spiral fluted
(c) right hand spiral fluted
(d) bottoming reamner
(e) taper reamer.
left hand spiral fluted
(a) straight fluted
(b) left hand spiral fluted
(c) right hand spiral fluted
(d) bottoming reamer
(e) taper reamer.
straight fluted
(a) a circular split die
(b) a set of taps
(c) a drill and a reamer
(d) as knurling tool
(e) end mill.
a circular split die
(a) are not round
(b) form threads with no chips
(c) do not exist
(d) both (a) and (b)
(e) none of the above
both (a) and (b)
(a) counter sinking
(b) counter boring
(c) reaming
(d) spot facing
(e) wide drilling.
spot facing
(a) of outside diameter of thread
(b) of inside diameter of thread
(c) of effective diameter of thread
(d) which leaves only about 60-75% of depth of triangle to be taken out by tap
(e) none of the above.
which leaves only about 60-75% of depth of triangle to be taken out by tap
(a) same direction
(b) opposite direction
(c) perpendicular direction
(d) tool moves down and work move up
(e) work move down and tool moves up.
same direction
(a) down milling
(b) up milling
(c) climb milling
(d) end milling
(e) keyway milling.
up milling
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