RANDOM

c

Q. Modality of choice of differentiating normal muscle from

abnormal muscle:

A. CT

B. US

C. MRI

D. Scintigraphy

a

Q. The iliac crest corresponds approximately to:

A. L4–L5 level

B. C1

C. T1

D. S5

Q. The approximate length of the adult small intestine is:

A. 1 m

B. 3 m

C. 6 m

D. 12 m

The lungs are ______ to the heart.

A. Lateral

B. Medial

C. Inferior

a

Q. The Caldwell method is primarily used for:

A. Frontal skull/PNS imaging

B. Lumbar spine

C. Elbow

D. Foot

b

Q. Bremsstrahlung literally refers to:

A. Nuclear decay

B. Braking radiation

C. Fluorescence

D. Electron capture

b

Q. The main purpose of a grid is to:

A. Increase magnification

B. Reduce scatter reaching the image receptor

C. Reduce focal spot size

D. Increase SID

b

Q. The heel effect causes greater X-ray intensity on the:

A. Anode side

B. Cathode side

C. Central ray

D. Collimator side

b

Q. Increasing SID generally causes image magnification to:

A. Increase

B. Decrease

C. Remain unchanged

D. Double

a

Q. Pleural effusion refers to:

A. Fluid in pleural space

B. Air in pleural space

C. Air in lung parenchyma

D. Fluid in pericardium only

Q. Tension pneumothorax is suggested by:

A. Mediastinal shift away from the affected side

B. Mediastinal shift toward the affected side

C. Bilateral effusions only

D. Increased heart size only

Q. Atelectasis means:

A. Collapse or incomplete expansion of lung tissue

B. Excess air in pleural space

C. Fluid in pericardium

D. Enlargement of heart

Q. Consolidation represents:

A. Replacement of air in alveoli by fluid/cells

B. Air in pleural space

C. Rib destruction only

D. Hyperinflation

Q. The carina is located approximately at:

A. T1

B. T4–T5

C. T10

D. L1

Q. Pneumonia commonly produces:

A. Air-space opacity

B. Hyperlucency only

C. Pneumothorax only

D. Cardiomegaly only

Q. In an erect chest, pleural air tends to collect at the:

A. Apex

B. Base

C. Hilum

D. Diaphragm only

Q. If the distance from an X-ray source is doubled, radiation intensity becomes:

A. 1/2

B. 1/4

C. 1/8

D. 1/16

Q. If 400 mA is used for 0.1 s, the mAs is:

A. 4 mAs

B. 40 mAs

C. 400 mAs

D. 0.04 mAs

b

Q. FLAIR is particularly useful because it:

A. Suppresses fat

B. Suppresses CSF signal

C. Suppresses bone

D. Suppresses blood flow only

b

Q. The open-mouth odontoid view demonstrates:

A. C5–C6

B. Dens and lateral masses of C1

C. T1–T2

D. L4–L5

b

Q. The swimmer's lateral view is particularly useful for demonstrating:

A. C1–C2

B. C7–T1 junction

C. L4–L5

D. Sacrum only

Q. The left lung normally has:

A. One lobe

B. Two lobes

C. Three lobes

D. Four lobes

Many RadTech interns forget the effect of thermionic emission.

In short It is the process where the heated filament releases electrons, forming electron cloud that is needed to produce X-rays.