CNC and NC Technology Quiz

What does CNC stand for?

• Central Numerical Control

• Computerized Numeric Control

• Controlled Numerical Computer

• Computer Numerical Control

What was the primary goal of NC technology?

• To simplify programming

• To eliminate manual labor

• To increase production and improve quality

• To reduce machine costs

Which component converts written instructions into a hole pattern in NC systems?

• NC machine

• Tape punch

• Tape reader

• Controller

What is a major advantage of CNC over traditional NC?

• More manual input required

• Less precision

• Easier program editing

• Higher initial cost

What type of control does a closed loop system use?

• Randomized movements

• Manual adjustments

• Feedback from sensors

• Fixed pulse counting

Which of the following is NOT an application of NC?

• Welding

• Turning

• Milling

• Grinding

What is the purpose of the machine control unit (MCU) in CNC?

• To store raw materials

• To control the machine's movements

• To manage employee schedules

• To monitor production costs

What is a disadvantage of CNC machines?

• Simpler programming

• Increased operator involvement

• Higher maintenance costs

• Lower productivity

What does the term 'DNC' stand for in CNC technology?

• Direct Numerical Control

• Distributed Numerical Control

• Dynamic Numerical Control

• Digital Numerical Control

Which of the following is a feature of modern CNC systems?

• No automation

• Manual blueprint reading

• Use of CAD/CAM software

• Single-axis operation only