Metalworking Occupations Mid-term Exam

30 Questions | By Mark Weaver | Last updated: Dec 13, 2017 | Total Attempts: 94

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This exam covers basic machine shop practices. Content areas are listed below. Measurement Layout Machine Speeds Drilling Screw threads Lathe work Milling

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Questions and Answers

1.

Identify the following tool.
- A.
  
  Vernier caliper
- B.
  
  Depth micrometer
- C.
  
  Outside micrometer
2.

Identify the following tool.
- A.
  
  Divider
- B.
  
  Combination Square
- C.
  
  Height gage
3.

Identify this tool which is used to scribe circles, arcs, and radii.
- A.
  
  Divider
- B.
  
  Combination Square
- C.
  
  Height gage
4.

Identify the following tool.
- A.
  
  Electronic Digital Caliper
- B.
  
  Electronic edge finder
- C.
  
  Electronic Indicator
5.

Which of the following tools would be used for basic hole layout work.
- A.
  
  Protractor, scriber, & center drill.
- B.
  
  Edgefinder, scriber, & live center
- C.
  
  Combination square, scriber,& center punch
6.

Which of the following tools will produce an internal thread?
- A.
  
  Tap
- B.
  
  Die
- C.
  
  Reamer
7.

A small double ended drill used to start a hole is called a
- A.
  
  Pilot drill
- B.
  
  Center drill
- C.
  
  Taper shank drill
8.

When preparing to produce internal threads, a hole which is __________________ the major diameter of the thread should be drilled first.
- A.
  
  Slightly larger than
- B.
  
  Slightly smaller than
- C.
  
  The same size as
9.

In the following thread information what does the first number represent? 1/4 - 20 UNC
- A.
  
  The major diameter of the thread is .250 inch
- B.
  
  There are 14 threads per inch
- C.
  
  A 1/4" diameter hole should be drilled
10.

What is the decimal equivalent of 23/64?
- A.
  
  .3281
- B.
  
  .3906
- C.
  
  .3594
11.

What is the fractional equivalent of .6250?
- A.
  
  1/16
- B.
  
  9/16
- C.
  
  5/8
12.

Which drill bit has the largest diameter?
- A.
  
  Number 10
- B.
  
  Letter A
- C.
  
  15/64
13.

What size tap drill is used for a 1/4 - 20 UNC thread.
- A.
  
  1/4
- B.
  
  Number 7
- C.
  
  Number 3
14.

What size tap drill is used for a 3/8 - 24 UNF thread?
- A.
  
  5/16
- B.
  
  Letter Q
- C.
  
  3/8
15.

Which tool is used to de-burr holes?
- A.
  
  Countersink
- B.
  
  Counterbore
- C.
  
  Counter balance
16.

Which tool is used to create a square bottomed hole for the head of a bolt to fit in?
- A.
  
  Countersink
- B.
  
  Counterbore
- C.
  
  Counter balance
17.

What is the reading on the outside micrometer shown below?
- A.
  
  .244
- B.
  
  .231
- C.
  
  .256
18.

What is the reading on the outside micrometer shown below?
- A.
  
  .430
- B.
  
  .455
- C.
  
  .405
19.

The lathe operation which cuts across the end of the workpiece is called ___________ .
- A.
  
  Turning
- B.
  
  Surfacing
- C.
  
  Facing
20.

The lathe operation which cuts along the outside diameter of the workpiece is called _______________ .
- A.
  
  Turning
- B.
  
  Surfacing
- C.
  
  Facing
21.

One methof for cutting a taper or angle on a part in the lathe is to use the ______________ .
- A.
  
  Compound Rest
- B.
  
  Head Stock
- C.
  
  Half Nut Lever
22.

A diamond shaped surface which produces a better grip on handles is produced with a _______________ .
- A.
  
  Parting tool
- B.
  
  Reamer
- C.
  
  Knurling tool
23.

Drill chucks, live centers, and other taper shank tools are held in the ____________ .
- A.
  
  Head stock
- B.
  
  Tail stock
- C.
  
  Tool post
24.

Identify this common cutting tool used in a milling machine.
- A.
  
  Indexable carbide insert end mill
- B.
  
  Two flute end mill
- C.
  
  Four flute end mill
25.

After mounting a vise on the milling machine the back jaw of the vise should be aligned with the table using an _______ .
- A.
  
  Indicator
- B.
  
  Edge finder
- C.
  
  Electronic caliper

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