CNC Study Test Questions & Answers
2024/2025
Which instruments are used to check the concentricity of a part on a surface place?
A) height gage and angle plate
B) sine bar and indicator
C) V-blocks and indicator
D) V-blocks and micrometer - ANSWERSC) V-blocks and indicator
When drilling blind holes, unless otherwise specified, the hole depth measurement is taken from what
part of the drill bit?
A) drill flats
B) drill point
C) tang
D) web - ANSWERSA) drill flats
Which is used to countersink for a flat-head screw?
A) 35° countersink
B) 41° countersink
C) 50° countersink
D) 82° countersink - ANSWERSD) 82° countersink
A program is written to use cutter compensation to contour the outside of a part. A smaller diameter
cutting tool is substituted for the tool originally used for the job. What needs to be changed for the part
to be machined correctly?
A) both tool value in the control offset page and program
B) program
C) spindle speed
2024/2025
Which instruments are used to check the concentricity of a part on a surface place?
A) height gage and angle plate
B) sine bar and indicator
C) V-blocks and indicator
D) V-blocks and micrometer - ANSWERSC) V-blocks and indicator
When drilling blind holes, unless otherwise specified, the hole depth measurement is taken from what
part of the drill bit?
A) drill flats
B) drill point
C) tang
D) web - ANSWERSA) drill flats
Which is used to countersink for a flat-head screw?
A) 35° countersink
B) 41° countersink
C) 50° countersink
D) 82° countersink - ANSWERSD) 82° countersink
A program is written to use cutter compensation to contour the outside of a part. A smaller diameter
cutting tool is substituted for the tool originally used for the job. What needs to be changed for the part
to be machined correctly?
A) both tool value in the control offset page and program
B) program
C) spindle speed
