Essex Tech NIMS Test Practice
2026/2027 Exam Questions and
Answers | Already Graded A+
1. Which of the following answers best identifies a countersink tool? -
ANSWER ✔✔B. used to create an angled bevel to remove burrs, aid
the start of taps, and the entry of dowel pins
D. used to cut a tapered opening at the beginning of an existing hole to a
specific depth to allow a flathead screw to sit flush or below the parts
surface
2. Typically done as part of the start-up procedure, which is the process
of positioning the CNC machining center's axes at a fixed reference
,position to allow the machine control unit (MCU) to accurately
establish/track the table's position? - ANSWER ✔✔Homing
3. After roughing an internal pocket, a program stop is utilized in the
program so the metal chips can be cleared. What will restart the
machine from this point in the program? - ANSWER ✔✔Cycle start
4. Which of the following describes a material safety data sheet
(MSDS)? - ANSWER ✔✔- MSDS is used to comply with OSHA's
hazard communication standard
- It identifies the chemicals in a workplace and their recommended uses
- It provides information about safe handling of chemicals and materials
(All of the above describe and MSDS)
5. A part print calls for a workpiece to have a finished length of 2.025".
Leaving 0.100" on the length for machining operations, what is the
length of stock that must be cut? - ANSWER ✔✔2 1/8"
6. Which statement best describes a datum? - ANSWER ✔✔Shown
by a capital letter in a box and signifies a plane from which dimensions
are referred
7. In which of the following scenarios is the individual following
recommended safety guidelines? - ANSWER ✔✔You wear safety
,glasses everytime you enter the shop floor and remove them only when
you have exited the manufacturing environment.
8. To maintain proper coolant levels and concentrations and to ensure a
machine tool has sufficient lubrication, a machinist should check the
machine's fluids: - ANSWER ✔✔Every shift
9. Select the answer that BEST describes the JOG mode function. -
ANSWER ✔✔Allows manual control of axes movement
10. Select the answer that BEST describes the position page on a CNC
control - ANSWER ✔✔A digital reference screen that displays work
and machine coordinates as well as the distance to go for positioning
command
11. If you are standing in front of a horizontal CNC milling machine,
which axis moves in and out (front to back)? - ANSWER ✔✔Z
12. G codes are referred to as: - ANSWER ✔✔Preparatory
commands
13. The threaded stud that is attached to a machining center's tool
holder(s) and is gripped by a mechanism that secures the tapered tool
holder in the spindle defines: - ANSWER ✔✔Retention Knob
3
COPYRIGHT©JOSHCLAY 2026/2027. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
, 14. Incremental programming or specifying a distance from the current
position instead of from the origin defines which code? - ANSWER
✔✔G91
15. Which of the methods listed here is recommended when adding fluid
to a coolant tank? - ANSWER ✔✔Check the coolant ratio with a
refractometer. Add soluble oil and/or water as necessary to obtain the
desired concentration
16. Select the answer that BEST describes the edit mode function -
ANSWER ✔✔Allow programs to be modified
17. To program the spindle to cut from point A to point B. Which axes
and in what directions would the spindle need to move? - ANSWER
✔✔X+Y+
18. Referring to Geometric Dimensioning and Tolerancing. Which of the
following BEST describes a basic dimension? - ANSWER ✔✔A
numerical value used to describe a theoretical dimension, has a box
around the dimension
19. The allowable deviation from the nominal dimension of a part feature
(+/-0.010",+/- 1/16") describes a: - ANSWER ✔✔Tolerance
2026/2027 Exam Questions and
Answers | Already Graded A+
1. Which of the following answers best identifies a countersink tool? -
ANSWER ✔✔B. used to create an angled bevel to remove burrs, aid
the start of taps, and the entry of dowel pins
D. used to cut a tapered opening at the beginning of an existing hole to a
specific depth to allow a flathead screw to sit flush or below the parts
surface
2. Typically done as part of the start-up procedure, which is the process
of positioning the CNC machining center's axes at a fixed reference
,position to allow the machine control unit (MCU) to accurately
establish/track the table's position? - ANSWER ✔✔Homing
3. After roughing an internal pocket, a program stop is utilized in the
program so the metal chips can be cleared. What will restart the
machine from this point in the program? - ANSWER ✔✔Cycle start
4. Which of the following describes a material safety data sheet
(MSDS)? - ANSWER ✔✔- MSDS is used to comply with OSHA's
hazard communication standard
- It identifies the chemicals in a workplace and their recommended uses
- It provides information about safe handling of chemicals and materials
(All of the above describe and MSDS)
5. A part print calls for a workpiece to have a finished length of 2.025".
Leaving 0.100" on the length for machining operations, what is the
length of stock that must be cut? - ANSWER ✔✔2 1/8"
6. Which statement best describes a datum? - ANSWER ✔✔Shown
by a capital letter in a box and signifies a plane from which dimensions
are referred
7. In which of the following scenarios is the individual following
recommended safety guidelines? - ANSWER ✔✔You wear safety
,glasses everytime you enter the shop floor and remove them only when
you have exited the manufacturing environment.
8. To maintain proper coolant levels and concentrations and to ensure a
machine tool has sufficient lubrication, a machinist should check the
machine's fluids: - ANSWER ✔✔Every shift
9. Select the answer that BEST describes the JOG mode function. -
ANSWER ✔✔Allows manual control of axes movement
10. Select the answer that BEST describes the position page on a CNC
control - ANSWER ✔✔A digital reference screen that displays work
and machine coordinates as well as the distance to go for positioning
command
11. If you are standing in front of a horizontal CNC milling machine,
which axis moves in and out (front to back)? - ANSWER ✔✔Z
12. G codes are referred to as: - ANSWER ✔✔Preparatory
commands
13. The threaded stud that is attached to a machining center's tool
holder(s) and is gripped by a mechanism that secures the tapered tool
holder in the spindle defines: - ANSWER ✔✔Retention Knob
3
COPYRIGHT©JOSHCLAY 2026/2027. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
, 14. Incremental programming or specifying a distance from the current
position instead of from the origin defines which code? - ANSWER
✔✔G91
15. Which of the methods listed here is recommended when adding fluid
to a coolant tank? - ANSWER ✔✔Check the coolant ratio with a
refractometer. Add soluble oil and/or water as necessary to obtain the
desired concentration
16. Select the answer that BEST describes the edit mode function -
ANSWER ✔✔Allow programs to be modified
17. To program the spindle to cut from point A to point B. Which axes
and in what directions would the spindle need to move? - ANSWER
✔✔X+Y+
18. Referring to Geometric Dimensioning and Tolerancing. Which of the
following BEST describes a basic dimension? - ANSWER ✔✔A
numerical value used to describe a theoretical dimension, has a box
around the dimension
19. The allowable deviation from the nominal dimension of a part feature
(+/-0.010",+/- 1/16") describes a: - ANSWER ✔✔Tolerance
