Machine Design, Materials and Shop Practice
Study Questions with 100% Correct Answers|
Verified-
Reaming - ✔✔An operation of sizing and finishing a hole
by means of a cutting tool having several
cutting edges
Countersinking - ✔✔The operation of making a cone shaped
enlargement of the end of a hole, as for a
recess for a flat head screw
Boring - ✔✔The operation of enlarging a hole by means
of an adjustable cutting tool with only one
cutting edge
Pitch Circle - ✔✔An imaginary circle passing through the
points at which the teeth of the meshing
gears contact each other
Carriage Bolt - ✔✔A type of bolt used in bolting wooden parts
together or wood to metal. It has a portion
of a shank just underneath a round head,
which is designed to keep the bolt from
turning in the wood when the nut is tightened
Diametral Pitch - ✔✔The number of teeth per inch of pitch
,diameter and which gives some indications
of the gear teeth
Circular Pitch - ✔✔The distance from the center of one tooth of
a gear the center of the next consecutive
tooth measured of the pitch
Addendum - ✔✔The portion of the gear tooth that projects
above or outside the pitch circle
Deddendum - ✔✔The portion of the gear tooth space that is
cut below the pitch circle and is equal to the
addendum plus the clearance
Gear Rack - ✔✔When meshed with a gear it is used to
change rotary motion to reciprocating
motion
Worm Gear - ✔✔A kind of gears for heavy duty works where
a large ratio of speed is required and are
extensively used in speed reducers
Bevel Gear - ✔✔A kind of gear to transmit motion from one
shaft to another shaft at an angle to the first
Normalizing - ✔✔The uniform heating of steel above the usual
hardening temperatures, followed by
,cooling freely in air
Quenching - ✔✔The operation of cooling a heated piece of
work rapidly by dipping it in water, brine or
oil
Annhealing - ✔✔A method in softening a piece of metal that is
too hard to machine and is done by heating steel
slowly above the usual hardening temperature
keeping it at the heat for ½ to 2 hours then
cooling slowly, preferably in a furnace
Tolerance - ✔✔The total permissible variation in the size of
a dimension the difference between the
limits of size
Squaring - ✔✔The operation of machining the end of a
work piece to make the end square with the
axis
Backslash - ✔✔The clearance between the tooth profiles of
a gear tooth
Dividing Head - ✔✔A mechanism which usually do the indexing
in a machine tool
Abrasive - ✔✔A material that can wear away a substance
, softer than itsel
Planer - ✔✔A machine tool used in the
production of flat surfaces on
pieces too large or too heavy or
perhaps too awkward to hold in a
shaper
Grinding - ✔✔It consist of shaping a piece
by bringing it into contact
with a rotating abrasive
wheel
Caliper - ✔✔A tool used in measuring
diameters
Dial Indicator - ✔✔Used to true align machine tools, fixtures,
and works, to test and inspect trueness of
finished work, and to compare
measurement either heights or depths or
many other measurement
Plasticity - ✔✔The ability of the metal to be deformed
considerably without rupture
Laying out - ✔✔The shop term used to include the marking
of inscribing of center points, circle, arcs, or
Study Questions with 100% Correct Answers|
Verified-
Reaming - ✔✔An operation of sizing and finishing a hole
by means of a cutting tool having several
cutting edges
Countersinking - ✔✔The operation of making a cone shaped
enlargement of the end of a hole, as for a
recess for a flat head screw
Boring - ✔✔The operation of enlarging a hole by means
of an adjustable cutting tool with only one
cutting edge
Pitch Circle - ✔✔An imaginary circle passing through the
points at which the teeth of the meshing
gears contact each other
Carriage Bolt - ✔✔A type of bolt used in bolting wooden parts
together or wood to metal. It has a portion
of a shank just underneath a round head,
which is designed to keep the bolt from
turning in the wood when the nut is tightened
Diametral Pitch - ✔✔The number of teeth per inch of pitch
,diameter and which gives some indications
of the gear teeth
Circular Pitch - ✔✔The distance from the center of one tooth of
a gear the center of the next consecutive
tooth measured of the pitch
Addendum - ✔✔The portion of the gear tooth that projects
above or outside the pitch circle
Deddendum - ✔✔The portion of the gear tooth space that is
cut below the pitch circle and is equal to the
addendum plus the clearance
Gear Rack - ✔✔When meshed with a gear it is used to
change rotary motion to reciprocating
motion
Worm Gear - ✔✔A kind of gears for heavy duty works where
a large ratio of speed is required and are
extensively used in speed reducers
Bevel Gear - ✔✔A kind of gear to transmit motion from one
shaft to another shaft at an angle to the first
Normalizing - ✔✔The uniform heating of steel above the usual
hardening temperatures, followed by
,cooling freely in air
Quenching - ✔✔The operation of cooling a heated piece of
work rapidly by dipping it in water, brine or
oil
Annhealing - ✔✔A method in softening a piece of metal that is
too hard to machine and is done by heating steel
slowly above the usual hardening temperature
keeping it at the heat for ½ to 2 hours then
cooling slowly, preferably in a furnace
Tolerance - ✔✔The total permissible variation in the size of
a dimension the difference between the
limits of size
Squaring - ✔✔The operation of machining the end of a
work piece to make the end square with the
axis
Backslash - ✔✔The clearance between the tooth profiles of
a gear tooth
Dividing Head - ✔✔A mechanism which usually do the indexing
in a machine tool
Abrasive - ✔✔A material that can wear away a substance
, softer than itsel
Planer - ✔✔A machine tool used in the
production of flat surfaces on
pieces too large or too heavy or
perhaps too awkward to hold in a
shaper
Grinding - ✔✔It consist of shaping a piece
by bringing it into contact
with a rotating abrasive
wheel
Caliper - ✔✔A tool used in measuring
diameters
Dial Indicator - ✔✔Used to true align machine tools, fixtures,
and works, to test and inspect trueness of
finished work, and to compare
measurement either heights or depths or
many other measurement
Plasticity - ✔✔The ability of the metal to be deformed
considerably without rupture
Laying out - ✔✔The shop term used to include the marking
of inscribing of center points, circle, arcs, or
