Machinist MCQ Question Bank

Which of the following is NOT a type of machining operation?

• Turning

• Milling

• Casting

• Drilling

What is the main purpose of a cutting fluid in machining?

• Lubrication

• Cooling

• Chip removal

• All of the above

Which material is commonly used for making cutting tools?

• High-speed steel

• Aluminum

• Copper

• Lead

What is the function of a lathe machine?

• Drilling

• Shaping

• Turning

• Grinding

In CNC programming, what does G00 represent?

• Rapid positioning

• Linear interpolation

• Circular interpolation

• Tool change

What is the purpose of a dial indicator?

• Measuring angles

• Measuring surface roughness

• Checking runout

• Cutting materials

What is backlash in machining?

• Excess material on a workpiece

• Play between mating gears

• Cutting tool vibration

• Overheating of the workpiece

Which of the following is a common CNC machine tool path command?

• M30

• G01

• M06

• T01

What does the feed rate in machining determine?

• Tool speed

• Cutting depth

• Material removal rate

• Surface finish

What is the function of a micrometer?

• Measuring internal diameters

• Measuring external diameters

• Checking surface roughness

• Holding the workpiece