List of practice Questions

Which of the following is not an essential component or principle of contemporary city-planning?

In an ultrasonic transducer with radius \( R \) and ultrasound wavelength \( \lambda \), the near field extends to a distance given by:

Among the piezoelectric materials, PZT crystals show better electro-mechanical conversion efficiency than Quartz crystals upto a frequency of about:

The correct combination of biomaterials and their medical applications are:

Metals are commonly used as biomaterials mainly because of their:

Carbonated apatite and brushite are the different atomic phases of calcium phosphate and they are:

For a compound, Agar diffusion test is used to evaluate:

The atomic number of the anode material in an X-ray tube is \( Z \). If the X-ray tube has an anode-to-cathode voltage of \( V \), the efficiency of X-ray production is proportional to:

In an image intensifier, the factors contributing to brightness gain are:

Acoustic impedance of a medium is defined as the product of:

With reference to Ultrasonography, the correct order of the materials/tissues with ascending values for the half value layer is:

SPECT systems are not suitable for dynamic studies because:

An agonist muscle causes movement through concentric contraction and an antagonist muscle controls the movement through:

High efficiency in CT detectors results in:

Cardiac images obtained with conventional CT may not be precise due to:

In a PET scanner, the positron combines with:

In MRI system, longitudinal relaxation time is slower than:

CT imaging reconstructs cross-sectional images primarily using:

As their aspect ratio is high, collagen fibers are not effective under:

The ligament connects:

Among the viscoelastic models:

Distance between corresponding successive points of heel contact of the opposite feet is termed step length and its mean value for a normal adult is around:

Which of the following is true with respect to the mobility of the joints?

With reference to the nervous system, which of the following statements is false?

In the muscular system, which of the following statement is true?