Week 8 Quiz

What is the human hearing range of frequency?

• 20 Hz to 0.02 MHz

• 20 kHz to 20000kHz

• 20 Hz to 40000 Hz

• 20 kHz to 200 kHz

The _______________ membrane functions as a transducer to convert sound vibration into electrical impulses.

Which one of the following audiometers uses descending method of limit to perform psychophysics evaluation?

• Pure tone audiometer

• Speech audiometer

• Bekesy audiometer

When analyzing an evoked response audiometry test, which of the following wave parameter can help determine abnormality in the number of neurons transmitting the signals?

• Period

• Wavelength

• Amplitude

Which of the following scientist discovered X-ray?

• Wilhelm Conrad Roentgen

• Henri Becquerel

• Marie Curie

• Ernest Rutherford

Gamma decay results in the emission of X-ray radiation.

• True

• False

X-ray waves have higher wavelengths than radio waves.

• True

• False

What effect would a decrease in filament current have on an X-ray machine?

• Decrease in X-ray production

• Increase in cathode filament heating

• Increase in the acceleration of electrons produced at the cathode

Most of the kinetic energy of the high-speed electrons produced in an X-ray tube is converted into heat.

• True

• False

What is the main purpose of including a filter in an X-ray tube?

• It separates X-rays from high-speed electrons.

• It separates high energy X-rays from low energy X-rays.

• It separates background radiation from X-ray radiation produced.