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Worksheetsdrilling concepts
Total questions: 21
Worksheet time: 11mins
When using a drill press, which guideline for speed is correct?
Use fast speed for large holes; slower speed for small holes.
Use slow speed for large holes; faster speed for small holes.
Use a uniformly fast speed.
Use a uniformly slow speed.
Power from the motor of the sensitive drill press is transmitted to the ___________through the belt drives.
Spindle
Headstock
Head
None of these
The following are materials used to make twist drills EXCEPT ______________.
carbon steel
stainless steel
carbon steel
tungsten carbide
Which following type of drill press is used to drill very large pieces?
Microdrill press
Sensitive drill press
Magnetic based drilling machine
Radial arm drill press
Drill press size is determined by ____________.
The largest drill that will fit the machine.
The largest piece of work that will fit on the table
The largest diameter work that can be drilled on center
None of these
Drill flutes are used to
Help form the cutting edge of the drill point
Curl the chips for easier removal
Form channels through which the chips can escape
All of these
Two types of twist drills are?
Straight Shank, Taper Shank
Taper Shank, Countersink
Flat drill, Slocombe
Centre drill, Countersink
The depth to which the drill will advance in the work is controlled by the
Dept micrometer
Rack and pinion
Spindle
Depth Stop
The point angle for a general purpose twist drill is ____.
90 degrees
118 degrees
130 degrees
140 degrees
The chisel edge of the twist drill is used to ____________.
Form the cutting edge.
Provide the right angle
Peirce through the metal being cut
Give the drill strength
