Ultrasonic Test Quiz

What is the basic principle of ultrasonic testing?

• Magnetic field detection

• Emission of light waves

• Propagation and reflection of sound waves

• Thermal imaging

In ultrasonic testing, what happens when a sound wave reaches a free end of a workpiece?

• It is scattered

• It is absorbed

• It is refracted

• It is reflected

What is the purpose of using a gel in the pulse-echo method?

• To cool down the probe

• To enhance sound wave transmission

• To clean the workpiece

• To lubricate the probe

What does the pulse-echo method detect in a material?

• Surface temperature

• Color changes

• Magnetic properties

• Defects within the material

What is the role of a piezoelectric disc in a probe?

• To transmit and receive ultrasonic pulses

• To emit light

• To measure temperature

• To generate magnetic fields

How is the depth of defects displayed on the monitor during ultrasonic testing?

• As a color gradient

• As a numerical value

• As a sound wave

• As a time plot

What is the main advantage of using a hollow axle in tram wheelsets?

• Facilitates ultrasonic examination

• Improved thermal conductivity

• Enhanced magnetic properties

• Increased weight

What type of echo is caused by the shape of the wheelset axle?

• Surface echo

• Contour echo

• Defect echo

• Transmission echo

What is the significance of double reflection in ultrasonic testing?

• Indicates a perfect material

• Indicates a defect

• Indicates a magnetic anomaly

• Indicates a temperature change

Why is regular ultrasonic examination important for tram wheel axles?

• To reduce noise levels

• To enhance the color of the axles

• To ensure passenger safety

• To increase the speed of trams