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2014
November
M
MIT Video Quiz 2
MIT Video Quiz 2
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What is the primary use of a drill press?
to apply pressure during thread tapping
to sand curved surfaces
to drill precise holes in materials
to spin material for sanding or filing into a circular shape
Body drill bits are used for
preparing a hole for threading with a thread tap.
cleaning out a hole after it has been threaded for a screw.
creating a clearance hole in a part that a screw passes through.
none of the reponses
Pilot drill bits are used for
preparing a hole for threading with a thread tap.
cleaning out a hole after it has been threaded for a screw.
creating a clearance hole in a part that a screw passes through.
none of the responses
If chatter is heard while drilling, it is
the normal noise heard during the drilling process.
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usually an indication that the drill bit is improperly set in the chuck.
usually an indication that spindle and chuck are misaligned.
When drilling thick material, one should
frequently back out the drill bit to remove chips.
use a cutting fluid to lubricate the chips for moving up the drill bit flutes.
use a cutting fluid to cool the drill bit and chips.
all of the responses
When drilling a large diameter hole, one should
ensure that the material is securely clamped.
use a stepwise process of increasing diameter drill bits.
adjust the drill speed as necessary to avoid chatter.
all of the responses
What is the primary use of a band saw?
to make precise cuts in a material
to cut a variety of materials – wood, plastic, aluminum, etc.
to cut thick hard materials such as 4-in thick steel bars
all of the responses
When using the band saw, one should
avoid pushing rapidly to prevent kickback by the saw.
adjust the blade speed for the material being cut.
adjust the blade guard just high enough for material clearance.
all of the responses
While using the band saw, one must
be aware of hand placement holding the material being cut.
use correct posture to avoid being pushed or falling into the saw.
allow the blade to cut the material without excessive force that might break the blade.
all of the responses
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