(NIMS) UPDATED Exam Questions and
CORRECT Answers
The safest way to remove chips from a lathe or milling machine is to use a - Correct Answer-
brush
Small chips left out on the spindle nose of a lathe should be cleaned to avoid - Correct
Answer- Run out on work holding devices
Grease guns are used to insert grease into - Correct Answer- Zerk fittings on machine tools
To lubricate the ways of a late, the gibs of a mill, or the cross slide of a grinder - Correct
Answer- Use lubricant found in central lubricating systems ("one shots")
If a vertical mill table is loose and has side play, the best solution to alleviate side play is to -
Correct Answer- tighten the taper gib adjustment
A machinist wants to find the proper type of lubrication, schedule and recommended
maintenance practices for the headstock of a lathe. The best source to find this information is
- Correct Answer- Preventative maintenance schedule and machine manual
General maintenance information for machine tools and machine work area can be found -
Correct Answer- In a general maintenance manual
Pinning refers to - Correct Answer- Loading the file with metal chips
Files should be stored - Correct Answer- In a toolbox separated from eachother
The best way to clean the chips out of a file is using a - Correct Answer- File card
, What is the most common injury that may occur during a filing operation? - Correct Answer-
Being stabbed with the tang (without the file handle)
The best lubricant to prevent wear and increase cutting efficiency for common steels is -
Correct Answer- Sulfur-based oil
The process plan specifies tooling to be used by indicating - Correct Answer- Tooling
diameters and sizes
A reaming operation produces finish tears. The cause of the tears is - Correct Answer- A
reamer with a worn tip
What size gage block height for an angle of 9 degrees on a 10 in sine plate? - Correct
Answer- 1.5643 in
Which of the following combinations of gage blocks (from a 81-block set) can be used to
gage a length of .9528 in? - Correct Answer- 0.1008, 0.102, .750
The process of displacing air between gage blocks for accurate measurements is called -
Correct Answer- wringing
To check the height of multiple parts with gage blocks, a machinist would use a - Correct
Answer- Dial indicator and digital height gage
Surface finish is checked with a - Correct Answer- Comparison chart
A surface finish with the symbol, 15th root is as follows: - Correct Answer- The surface
finish id 15 micro inches
What is the most common type of surface finish callout? - Correct Answer- Roughness
A part is considered a reject when - Correct Answer- Dimensions are out of tolerance