D:-Either of them
Correct Answer:- Option-C
Question39:-What is the atomic number of barium ?
A:-70
B:-65
C:-42
0-6
Correct Answer:- Option-D
Question40:-In suspected perforation what is the contrast media used for evaluation of GIT ?
A:-Barium sulphate
B:-Gastrograffin
C:-Urograffin
D:-Water
Correct Answer:- Option-B
Question41:-Which is NOT a part of small bowel ?
A:-Duodenum
B:-lleum
C:-Jejunum
D:-Stomach
Correct Answer:- Option-D
Question42:-Barium enema includes investigation of
A:-Oesophagus
B:-Small bowel
:-Large bowel
D:-Stomach
Correct Answer:- Option-C
Question43:-Paranasal sinuses includes all EXCEPT
A:-Mastoid
B:-Frontal
:-Maxillary
D:-Sphenoid
Correct Answer:- Option-A
Question44:-Caldwell view is
A:-PA with 15 degree caudal angulation
-AP with 15 degree caudal angulation
C:-Lateral
D:-Lateral oblique
Correct Answer:- Option-A
Question45:-The continued emission of light from a substance even after cessation of exposure is known as
A:-Luminescence
Fluorescence
C:-Phosphorescence
D:-None of the above
Correct Answer:- Option-C
Question46:-All of the following given below are properties of X-rays EXCEPT one
A:-Highly penetrating and invisible
B:-Can be focused by lens
:-Electrically neutral
D:-Liberate minute amounts of heat on passing through matter
Correct Answer:- Option-B
Question47:-The exposure rate of X-ray beam may be altered by all EXCEPT
A:-Tube current
-Tube potential

C:-Distance

D:-None of the above

Correct Answer:- Option-D

Question48:-The most prevalent material used in TLD badge is
A:-Sodium