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Machine Theory > Quiz #1 - Drilling > Flashcards

Quiz #1 - Drilling Flashcards

1
Q

What type of drill press is used for drilling large work?

  1. Sensitive drill press
  2. Enlarge gang drill
  3. Upright drill press
  4. Radial arm drill press
A
  1. Radial arm drill press
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2
Q

The drilling machine that allows qucik lowering and raising of the head is the:

  1. Sensitive
  2. Upright
  3. Radial Arm
  4. Gang
A
  1. Radial Arm.
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3
Q

Upright drill presses have a:

  1. Power table feed
  2. Power quill feed
  3. Moveable arm extending from the column
  4. Series of spindles for drilling several holes at the same time
A
  1. Power quill feed.
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4
Q

The size of a sensitive drill press is generally stated by:

  1. The size of drill bit that the machine can accomodate
  2. The distance from the center of the chuck to the column
  3. The size of the column diameter and the total height of the workpiece in the drill
  4. The diameter of the table and the size of the drill that the drill press can handle
A
  1. The distance from the center of the chuck to the column.
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5
Q

The operation of opening a hole to an accurate size and good surface finish is the definiton for:

  1. Drilling
  2. Reaming
  3. Coutersinking
  4. Couterboring
A
  1. Reaming
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6
Q

When a tapping operation is performed under power in a drill press a __________ is used:

  1. Serial tap
  2. Bottoming tap
  3. Helical feed attachment
  4. Tapping attachment
A
  1. Tapping Attachment.
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7
Q

An upright drill press can hold:

  1. Straight shank drills only
  2. Taper shank drills only
  3. Straight shank drills up to 2” diameter
  4. Taper shank and straight shank drills
A
  1. Taper shank and straight shank drills
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8
Q

A sensitive drill press has:

  1. Power and hand feed
  2. Hand feed only
  3. Power feed only
  4. Slow speeds only
A
  1. Hand feed only
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9
Q

A general purpose drill for drilling most metals has an included point angle of:

  1. 150 degrees
  2. 130 degrees
  3. 118 degrees
  4. 90 degrees
A
  1. 118 degrees
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10
Q

The body of a drill is usually straight up to 1/2 inch diameter and tapered over 1/2 inch diameter.

  1. True
  2. False
A
  1. False
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11
Q

The three main parts of a drill are:

  1. point, shank, and body
  2. cutting edge, shank, and body
  3. tang, body, and point
  4. tang, body, and shank
A
  1. point, shank, and body
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12
Q

When counterboring, the speed selected should be approximately __________ that used for drilling:

  1. 1/2
  2. 2/3
  3. 1/4
  4. 3/4
A
  1. 1/4
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13
Q

The thickness of the web of a twist drill:

  1. increases from point to shank
  2. decreases from tang to shank
  3. increases from shank to tang
  4. remains the same over the whole length
A
  1. increases from point to shank
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14
Q

Flutes of a drill:

  1. admit cutting fluid
  2. form the cutting edges
  3. allow chips to exit
  4. all of the above
A
  1. All of the above
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15
Q

A #27 drill, as compared with a #26 drill is:

  1. larger in diameter
  2. greater in diameter by 0.010”
  3. smaller in diameter
  4. smaller in diameter by 0.010”
A
  1. smaller in diameter
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16
Q

The twist drill set that contains drill sizes that range from 0.234” to 0.413” in diameter is the:

  1. letter set
  2. number set
  3. fractional set
  4. millimeter set
A
  1. letter set
17
Q

The size of a twist drill should be measured over the:

  1. point
  2. body
  3. margins
  4. tang
A
  1. Margins
18
Q

When drilling large holes:

  1. increase the size of the centre punch marks
  2. start by drilling a pilot hole
  3. decrease the cutting speed
  4. increase the point angle
A
  1. start by drilling a pilot hole
19
Q

Excessive drilling speed will cause:

  1. a squealing noise
  2. the drill to turn blue
  3. the edges of the margins and chisel point to beak down
  4. all of the above
A
  1. all of the above
20
Q

What would be the RPM for drilling a 65 mm hole in a piece of brass with a cutting speed of 110 SMPM?

  1. 892 RPM
  2. 442 RPM
  3. 676 RPM
  4. 542 RPM
A
  1. 542 RPM

Machine Theory (7 decks)

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