monthly test of feb 25

What is the standard drill point angle for general-purpose drills?

• 100 degrees

• 135 degrees

• 118 degrees

• 90 degrees

What is the primary function of a CNC machine?

• To create 3D models for printing.

• To assemble parts without programming.

• To automate machining processes using computer programming.

• To cut materials using manual tools.

What are the advantages of using CNC over manual machining?

• Simpler setup process

• Greater flexibility in material choice

• Advantages of CNC over manual machining include higher precision, repeatability, efficiency, reduced human error, ability to handle complex designs, and continuous operation.

• Lower cost of production

What is the function of G-code in CNC programming?

• G-code defines the color scheme of CNC machines.
• G-code is used for programming software applications.
• G-code is a type of hardware used in CNC machines.
• Defines tool movement and geometry

What does CNC stand for?

• Computer Network Control
• Computerized Numeric Command
• Centralized Numerical Control
• Computer Numerical Control

What is the typical helix angle range for general-purpose drills?

• 50°–60°

• 
  35°–45°
  

• 10°–15°
  

• 18°–30°
  

What is the helix angle in a drill bit?

• The helix angle is the diameter of the drill bit.
• The helix angle is the length of the drill bit.
• The helix angle is the speed at which the drill bit rotates.
• The helix angle is the angle between the drill bit's flutes and its axis.

The flutes of a drill bit serve the purpose of:

• Removing chips and allowing coolant flow

• Increase the drilling speed.
• Enhance the durability of the bit.
• Provide lubrication to the drill bit.

Which G-code is used for rapid positioning in CNC machines?

• G02
• G00
• G01
• G03

Which G-code is used for linear interpolation?

• G01
• G03
• G00
• G02