NDT Basic MCQ Question Bank

Which of the following is a Non-Destructive Testing method?

• Tensile Test

• Impact Test

• Radiographic Test

• Bend Test

What is the full form of NDT?

• Non-Damage Test

• Non-Destructive Testing

• Non-Durable Testing

• Non-Dynamic Testing

Which NDT method uses X-rays or Gamma rays?

• Ultrasonic Testing

• Radiographic Testing

• Magnetic Particle Testing

• Eddy Current Testing

Ultrasonic Testing is based on the principle of:

• Magnetic field

• Light waves

• Sound waves

• Radiations

Which NDT method is most suitable for surface crack detection in ferromagnetic materials?

• Liquid Penetrant Testing

• Radiographic Testing

• Magnetic Particle Testing

• Ultrasonic Testing

What is the frequency range of ultrasonic waves used in NDT?

• Below 20 Hz

• 20 - 2000 Hz

• 20 kHz - 10 MHz

• Above 100 MHz

Which method uses fluorescent dye for detecting cracks?

• Ultrasonic Testing

• Liquid Penetrant Testing

• Eddy Current Testing

• Thermography

In Liquid Penetrant Testing, what is the purpose of the developer?

• Clean the surface

• Highlight the defect

• Remove excess penetrant

• Dry the surface

Which material cannot be tested using Magnetic Particle Testing?

• Cast iron

• Mild steel

• Copper

• Carbon steel

What is the basic requirement for Magnetic Particle Testing?

• Electrically conductive material

• Magnetic material

• Transparent material

• High temperature