MIT Video Quiz 2

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

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

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

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.

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

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

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

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

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