Deck 1: Precision Machining Technology

Question 1

Programming complex machining operations is done on a computer with the aid of ________ software.

A) CAM
B) CAD
C) wireframe
D) Toolpath

Answer 1

CAM

Question 2

The very first step in using CAM software is to make a drawing with ________ software.

A) toolpath
B) CAM
C) CAD
D) surface model

Answer 2

CAD

Question 3

Direct hardening can be performed on steel containing at least ________ percent of carbon.

A) 0.1
B) 0.2
C) 0.3
D) 0.4

Answer 3

0.3

Question 4

The depth of case hardening is usually less than ____ inches.

A) 0.020
B) 0.030
C) 0.040
D) 0.050

Question 5

The taper used in most modern CNC milling machines is an example of a self-releasing taper and is known as the ____ taper.

A) DROS
B) NMTB
C) TPF
D) R-8

Question 6

One benefit of the ________ method is its quick setup time.

A) offset tailstock
B) compound rest
C) taper attachment
D) tool digital

Question 7

Continual use of a ________ wheel requires extreme pressure and creates excessive heat that can lead to thermal discoloration of the workpiece and discomfort as the operator holds the hot workpiece.

A) worn
B) loaded
C) dressed
D) grinding

Question 8

Precision fixed gages are usually used to no more than ________ accuracy.

A) 0.0002 inch
B) 0.0003 inch
C) 0.0004 inch
D) 0.0005 inch

Question 9

Knee-type milling machines often use IPR for power quill feed settings, but power feeds for the table and saddle are specified in ________.

A) IPT
B) IPM
C) FPT
D) RPM

Question 10

A ________ is an internal part feature machined into the surface of a workpiece.

A) tram
B) pocket
C) chip
D) bore

Question 11

Pi is shown by the symbol ____.

A) $\pi$
B)#
C) µ
D) §

Question 12

In right-angle trigonometry, angle ____ is always 90 degrees and side ____ is called the hypotenuse.

A) A, a
B) B, b
C) C, c
D) X, x

Question 13

_________are often responsible for measuring sizes to ensure parts meet specifications shown on engineering drawings.

A) Assemblers
B) Operators
C) Technicians
D) Machinists

Question 14

The ____ point is the lowest temperature where the substance can be ignited.

A) boiling
B) flash
C) melting
D) explosive

Question 15

The force of a rotating cutting tool can cause a loose ________ to move and violently pull workpieces from the machine and shatter cutting tools, causing serious injury.

A) table
B) saddle
C) turret
D) ram