Question 1

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

Accepted Answer

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

Question 2

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.

Accepted Answer

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

Question 3

Pi is shown by the symbol ____.

Accepted Answer

A)   $\pi$ 
B) # 
C)  µ 
D)  § A

Question 4

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

Accepted Answer

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

Question 5

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

Accepted Answer

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

Question 6

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

Accepted Answer

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

Question 7

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

Accepted Answer

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

Question 8

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.

Accepted Answer

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

Question 9

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

Accepted Answer

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

Question 10

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

Accepted Answer

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

Question 11

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

Accepted Answer

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

Question 12

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

Accepted Answer

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

Question 13

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

Accepted Answer

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

Question 14

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

Accepted Answer

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

Question 15

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

Accepted Answer

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

Exam 1: Precision Machining Technology