Radiology Multiple Choice Questions

Question 1. Cross bun skull is seen in.

1. Congenital syphilis
2. Fallot’s tetralogy
3. Rickets
4. Acromegaly

(Note: Cross bun skull seen in congenital syphilis is vertical forehead, sunken nasal bridge, and prominence of frontal eminences—frontal bosses).

Answer: 1. Congenital syphilis

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Question 2. Craniotabes occur in.

1. Thalassaemia
2. Osteogenesis imperfecta
3. Myxoedema
4. Tetany

[Note: Craniotabes (softening of the skull) occur in the early stage of rickets, hydrocephalus, congenital syphilis, hyperparathyroidism, and osteogenesis imperfecta].

Answer: 2. Osteogenesis imperfecta

Question 3. Ping-pong ball and eggshell crackling effects of the skull are the first signs of.

1. Osteomalacia
2. Rickets
3. Hydrocephalus
4. Skull vault fracture

Answer: 2. Rickets

Question 4. Boxy head with the prominence of frontal and parietal eminences seen in.

1. Osteomalacia
2. Rickets
3. Hydrocephalus
4. Skull vault fracture

(Note: Boxy head or Rachitic head is a condition in which the skull appears larger than normal size with the prominence of frontal and parietal eminences, seen in rickets).

Answer: 2. Rickets

Question 5. Bulldog scalp is seen in.

1. Rickets
2. Congenital syphilis
3. Pituitary dwarfism
4. Acromegaly

(Note: Bulldog scalp is seen in acromegaly due to excessive growth of skin and subcutaneous tissues of the scalp).

Answer: 4. Acromegaly

Question 6. Joffroy’s sign is associated with.

1. Bell’s palsy
2. Costen syndrome
3. Hypocalcemia
4. Hyperthyroidism

[Note: Joffroy’s sign (bilateral absence of wrinkling on looking up) is a sign of hyperthyroidism].

Answer: 4. Hyperthyroidism

Question 7. Unilateral wrinkling of the forehead and unilateral smile are seen in.

1. Bell’s palsy
2. Tetany
3. Tetanus
4. Trotter syndrome

Answer: 1. Bell’s palsy

Question 8. Ape-like facial appearance is seen in.

1. Rickets
2. Congenital syphilis
3. Paget’s disease
4. Acromegaly

Answer: 4. Acromegaly

Question 9. The face appears pale, and puffy with a dull and emotionless appearance in.

1. Cretinism
2. Myxoedema
3. Tetanus
4. Myasthenia gravis

[Note: In hypothyroidism (myxoedema), the face appears pale, and puffy with a dull and emotionless appearance; eyelids appear swollen and drooping].

Answer: 2. Myxoedema

Question 10. A sneering smile is seen in.

1. Risus sardonicus
2. Scleroderma
3. Myasthenia gravis
4. Bell’s palsy

(Note: A sneering smile seen in myasthenia gravis and is due to the weakness of zygomatic and risorius muscles).

Answer: 3. Myasthenia gravis

Question 11. Tobacco pouch mouth is seen in scleroderma.

1. Scleroderma
2. Myasthenia gravis
3. Wegener’s granulomatosis
4. Masseter hypertrophy

(Note: Tobacco pouch mouth is a condition of a partially open mouth with protruding teeth, seen in scleroderma).

Answer: 1. Scleroderma

Question 12. Saddle nose is seen in.

1. Le Fort 2 fracture
2. Anhidrotic ectodermal dysplasia
3. Leprosy
4. Sarcoidosis

(Note: Saddle nose is seen in congenital syphilis, infantile hypothyroidism, anhidrotic ectodermal dysplasia, and Wegener’s granulomatosis, polychondritis).

Answer: 2. Anhidrotic ectodermal dysplasia

Question 13. Chvostek’s sign is associated with.

1. Latent tetany
2. Amyloidosis
3. Lipoma
4. Postherpetic neuralgia

(Note: Chvostek’s sign is a sudden contraction of facial muscles following a light tap over the facial nerve seen in latent tetany).

Answer: 1. Latent tetany

Question 14. Carp mouth is seen in.

1. Scleroderma
2. Crohn’s disease
3. Tetany
4. Scurvy

(Note: Carp mouth is rigid and fixed facial expression due to the facial muscle spasm in tetany).

Answer: 3. Tetany

Question 15. Fixed smile or suppressed smile is seen in.

1. Myasthenia gravis
2. Ehlers-Danlos syndrome
3. Wilson’s disease
4. Scleroderma

(Note: Fixed smile or suppressed smile is seen in scleroderma and Wilson’s disease).

Answer: 3. Wilson’s disease

Question 16. Fish mouth is seen in.

1. Cushing’s syndrome
2. Addison’s disease
3. Guillain-barre syndrome
4. Sjogren syndrome

Answer: 1. Cushing’s syndrome

Question 17. Lip-tie is seen in.

1. Ectodermal dysplasia
2. Ehlers-Danlos syndrome
3. Cleido-cranial syndrome
4. Scleroderma

Answer: 2. Ehlers-Danlos syndrome

Question 18. Crocodile skin tongue is seen in.

1. Mikulicz syndrome
2. Sjogren syndrome
3. Plummer vinson syndrome
4. Dry beriberi

(Note: Crocodile skin tongue in Sjogren syndrome is due to papillary atrophy and furring).

Answer: 2. Sjogren syndrome

Question 19. Cobblestone tongue is seen in.

1. Crohn’s disease
2. Hyperplastic candidiasis
3. Ariboflavinosis
4. Pierre Robin syndrome

Answer: 3. Ariboflavinosis

Question 20. Peg-shaped teeth are seen in.

1. Goltz-gorlin syndrome
2. Gorlin-goltz syndrome
3. Generalized relative microdontia
4. Ectodermal dysplasia

Answer: 4. Ectodermal dysplasia

Question 21. Maldon teeth are seen in.

1. Amelogenesis imperfecta
2. Fluorosis
3. Turner’s hypoplasia
4. Tetracycline staining

(Note: Maldon teeth are seen in endemic fluorosis with a chalky white appearance).

Answer: 2. Fluorosis

Question 22. The life-protecting hormone is.

1. Adrenaline
2. Cortisol
3. Insulin
4. Thyroxine

(Note: Life protecting hormone is cortisol or hydrocortisone).

Answer: 2. Cortisol

Question 23. A life-saving hormone is.

1. Epinephrine
2. Norepinephrine
3. Aldosterone
4. Cortisol

Answer: 3. Aldosterone

Image Receptors X-Ray Film Intensifying Screens And Grids And Image Characteristics Multiple Choice Questions

Question 1. Silver bromide in the emulsion influences the.

1. Base adhesion
2. Sensitive spikes
3. Film speed
4. Image quality

Answer: 3. Film speed

Question 2. Spectral sensitivity is the film’s response to.

1. Different radiation
2. Various colors
3. Light exposure
4. Intensifying screens

Answer: 2. Various colors

Question 3. To make intensifying screen base as reflective, the manufacturer adds.

1. Terbium bromide
2. Lanthanum sulfide
3. Neodymium oxide
4. Titanium dioxide

Answer: 4. Titanium dioxide

Question 4. Image details in films using intensifying screens with reflective layers will be.

1. High contrast
2. Low contrast
3. Sharper
4. Less sharp

Answer: 4. Less sharp

Question 5. Grids are commonly used in dentistry for.

1. Orthopantomography
2. Cephalometry
3. Lateral oblique
4. PA mandible

(Note: Grids are used in dentistry for cephalo¬metric and TMJ radiographs).

Answer: 2. Cephalometry

Question 6. The step wedge is made up of.

1. Lead
2. Copper
3. Tungsten
4. Aluminium

Answer: 4. Aluminium

Question 7. Step wedge is used to monitor the.

1. Qualities of film
2. Exposure parameters
3. Darkroom integrity
4. Processing technique

(Note: Step wedge is used to monitor the densities and contrast).

Answer: 1. Qualities of film

Question 8. Image shape distortion is minimal on using.

1. Bisecting technique
2. Bitewing technique
3. Paralleling technique
4. Tube shift technique

Answer: 3. Paralleling technique

Question 9. Fog in film results in.

1. Increased image contrast
2. Increased film density
3. Image distortion
4. Image unsharpness

(Note: Fog results in increased film density and decreased contrast).

Answer: 2. Increased film density

Question 10. Image sharpness is the ability of a radiograph to define.

1. Closely placed structures
2. Boundaries of lesion
3. Morphological features
4. The edges precisely

Answer: 4. The edges precisely

Question 11. Resolution is the property of the radiograph that allows the detection of.

1. Different structures that are close together
2. Structures in different shades of gray
3. Different structures with the same density
4. Structures that reflect radiation

Answer: 1. Different structures that are close together

Question 12. A radiograph displaying many shades of gray is said to have.

1. Short scale contrast
2. High contrast
3. Long scale contrast
4. High density

(Note: Low contrast or long scale contrast).

Answer: 3. Long scale contrast

Question 13. Variation in the true size or shape of a radiographic image is known as.

1. Elongation
2. Unsharpness
3. Haziness
4. Distortion

Answer: 4. Distortion

Question 14. The moisture-resistant barrier for the film is.

1. Lead foil
2. Paper wrapper
3. Adhesive coat
4. Base

Answer: 2. Paper wrapper

Question 15. The ideal grid ratio is.

1. 5:1
2. 8:1
3. 10:1
4. 12:1

Answer: 2. 8:1