RADIOTHERAPHY- PAGE 1
RADIOTHERAPHY MCQs- PAGE 1
1:-SI unit of dose equivalent is
A:-Roentgens
B:-Gray
C:-Rad
D:-Sievert
Ans: D
2:-Primary radiation barrier materials used include
A:-Concrete
B:-Lead
C:-Steel
D:-Any of the above
Ans: D
3:-Personal monitoring devices include all EXCEPT
A:-Geiger Muller counter
B:-Film badges
C:-TLD badges
D:-Pocket dosimeters
Ans: A
4:-X-ray radiation monitoring instruments include all EXCEPT
A:-Ionization chamber
B:-Geiger Counter
C:-Neutron rem counter
D:-Photographic film
Ans: C
5:-Therapeutic range of electrons is given by depth of ____ depth dose.
A:-70%
B:-90%
C:-80%
D:-85%
Ans: B
6:-Field shaping is done by all EXCEPT
A:-Custom blocking
B:-Wedge filters
C:-Independent jaws
D:-Multi leaf collimators
Ans: B
7:-In linear accelerator, photon beam passes from the source till the exit from gantry head in the order
A:-Primary collimator → ion chamber → filter → MLC
B:-Primary collimator → filter → ion chamber → MLC
C:-Primary collimator → MLC → filter → ion chamber
D:-Filter → primary collimator → MLC → ion chamber
Ans: B
8:-Gating is a newer technique used in the treatment of
A:-Ca rectum
B:-Ca tongue
C:-Ca lung
D:-Ca ovary
Ans: C
9:-Electronic Portal Imaging Device (EPID) in radiotherapy is used for
A:-Treatment planning
B:-Treatment verification
C:-CT simulation
D:-Conversional simulation
Ans: B
10:-All head and neck malignancies have the same nodal staging in TNM system except in __________ cancer.
A:-Buccal mucosa
B:-Oropharynx
C:-Tongue
D:-Nasopharynx
Ans: D
11:-Radiation reactions in head and neck radiation include all EXCEPT
A:-Mucositis
B:-Skin pigmentation
C:-Bleeding per vaginum
D:-Dry mouth
Ans: C
12:-Total external beam radiation dose given in the treatment of cancer cervix stage III is
A:-25 Gy
B:-35 Gy
C:-45 Gy
D:-65 Gy
Ans: C
13:-Which is the oncologic emergency treated with radiation ?
A:-Tumour lysis syndrome
B:-Superior venacaval obstruction
C:-Polymyositis
D:-None of the above
Ans: B
14:-Post mastectomy radiation is given by
A:-4 field box technique
B:-Tangential fields
C:-Lateral parallel pair
D:-None of the above
Ans: B
15:-Radiation treatment is given for the following non-malignant brain condition
A:-Astrocytoma
B:-Encephalitis
C:-Glioblastoma
D:-Craniopharyngioma
Ans: D
16:-The following radiation fields are used in the treatment of lymphoma EXCEPT
A:-Mantle field
B:-Inverted Y field
C:-Dog leg field
D:-Pencil beam field
Ans: D
17:-Craniospinal irradiation is primarily used in the treatment of
A:-Craniopharyngioma
B:-Vertebral metastasis
C:-Medulloblastoma
D:-Multiple myeloma
Ans: C
18:-Scalp hair loss occurs in the following conditions EXCEPT
A:-Cranial irradiation
B:-Chemotherapy
C:-Both 1 & 2
D:-Pelvic irradiation
Ans: D
19:-Multiple punched-out lesions in skull X-ray is characteristically seen in
A:-Non-Hodgkin's lymphoma
B:-Hodgkin's disease
C:-Soft tissue sarcoma
D:-Multiple Myeloma
Ans: D
20:-The phenomenon in which light continues to emit for sometime even after the radiation exposure has ended is called
A:-Fluorescence
B:-Quantum mottle
C:-Phosphorescence
D:-None
Ans: C
A:-Roentgens
B:-Gray
C:-Rad
D:-Sievert
Ans: D
2:-Primary radiation barrier materials used include
A:-Concrete
B:-Lead
C:-Steel
D:-Any of the above
Ans: D
3:-Personal monitoring devices include all EXCEPT
A:-Geiger Muller counter
B:-Film badges
C:-TLD badges
D:-Pocket dosimeters
Ans: A
4:-X-ray radiation monitoring instruments include all EXCEPT
A:-Ionization chamber
B:-Geiger Counter
C:-Neutron rem counter
D:-Photographic film
Ans: C
5:-Therapeutic range of electrons is given by depth of ____ depth dose.
A:-70%
B:-90%
C:-80%
D:-85%
Ans: B
6:-Field shaping is done by all EXCEPT
A:-Custom blocking
B:-Wedge filters
C:-Independent jaws
D:-Multi leaf collimators
Ans: B
7:-In linear accelerator, photon beam passes from the source till the exit from gantry head in the order
A:-Primary collimator → ion chamber → filter → MLC
B:-Primary collimator → filter → ion chamber → MLC
C:-Primary collimator → MLC → filter → ion chamber
D:-Filter → primary collimator → MLC → ion chamber
Ans: B
8:-Gating is a newer technique used in the treatment of
A:-Ca rectum
B:-Ca tongue
C:-Ca lung
D:-Ca ovary
Ans: C
9:-Electronic Portal Imaging Device (EPID) in radiotherapy is used for
A:-Treatment planning
B:-Treatment verification
C:-CT simulation
D:-Conversional simulation
Ans: B
10:-All head and neck malignancies have the same nodal staging in TNM system except in __________ cancer.
A:-Buccal mucosa
B:-Oropharynx
C:-Tongue
D:-Nasopharynx
Ans: D
11:-Radiation reactions in head and neck radiation include all EXCEPT
A:-Mucositis
B:-Skin pigmentation
C:-Bleeding per vaginum
D:-Dry mouth
Ans: C
12:-Total external beam radiation dose given in the treatment of cancer cervix stage III is
A:-25 Gy
B:-35 Gy
C:-45 Gy
D:-65 Gy
Ans: C
13:-Which is the oncologic emergency treated with radiation ?
A:-Tumour lysis syndrome
B:-Superior venacaval obstruction
C:-Polymyositis
D:-None of the above
Ans: B
14:-Post mastectomy radiation is given by
A:-4 field box technique
B:-Tangential fields
C:-Lateral parallel pair
D:-None of the above
Ans: B
15:-Radiation treatment is given for the following non-malignant brain condition
A:-Astrocytoma
B:-Encephalitis
C:-Glioblastoma
D:-Craniopharyngioma
Ans: D
16:-The following radiation fields are used in the treatment of lymphoma EXCEPT
A:-Mantle field
B:-Inverted Y field
C:-Dog leg field
D:-Pencil beam field
Ans: D
17:-Craniospinal irradiation is primarily used in the treatment of
A:-Craniopharyngioma
B:-Vertebral metastasis
C:-Medulloblastoma
D:-Multiple myeloma
Ans: C
18:-Scalp hair loss occurs in the following conditions EXCEPT
A:-Cranial irradiation
B:-Chemotherapy
C:-Both 1 & 2
D:-Pelvic irradiation
Ans: D
19:-Multiple punched-out lesions in skull X-ray is characteristically seen in
A:-Non-Hodgkin's lymphoma
B:-Hodgkin's disease
C:-Soft tissue sarcoma
D:-Multiple Myeloma
Ans: D
20:-The phenomenon in which light continues to emit for sometime even after the radiation exposure has ended is called
A:-Fluorescence
B:-Quantum mottle
C:-Phosphorescence
D:-None
Ans: C
21:-Radioactivity was first described by
A:-Roentgen
B:-Becquerel
C:-Joseph Lister
D:-Khorana
Ans: B
22:-Lymphatic drainage of anal canal is to
A:-Inguinal lymph nodes
B:-External iliac lymph nodes
C:-Internal iliac lymph nodes
D:-Para aortic lymph nodes
Ans: A
23:-What is the main mode of heat transfer in rotating anode X-ray tube ?
A:-Conduction
B:-Convention
C:-Radiation
D:-All the above
Ans: C
24:-The plane that divides the body into right and left halves
A:-Median sagittal plane
B:-Coronal plane
C:-Axial plane
D:-Mid-axillary plane
Ans: A
25:-Half-life of Cobalt-60 is
A:-6.26 years
B:-5.67 years
C:-5.26 years
D:-6.67 years
Ans: C
26:-Most common histopathology in head and neck carcinoma is
A:-Squamous cell carcinoma
B:-Adenocarcinoma
C:-Lymphoma
D:-Melanoma
Ans: A
27:-Lymphatics from tonsil drain into
A:-Mediastinal lymph nodes
B:-Jugulodigastric lymph nodes
C:-Submental lymph nodes
D:- Lower deep cervical lymph nodes
Ans: B
28:-Which of the following is NOT a deterministic effect of radiation ?
A:-Skin erythema
B:-Sterility
C:-Carcinogenesis
D:-Fetal abnormality
Ans: C
29:-Most common histopathology of carcinoma breast is
A:-Adenocarcinoma
B:-Infiltrating duct carcinoma
C:-Lobular carcinoma
D:-Squamous cell carcinoma
Ans: B
30:-In which projection, is the central ray incident on the position aspect and emerges from the anterior aspect of the body ?
A:-Posteroanterior projection
B:-Anteroposterior projection
C:-Lateral projection
D:-Oblique projection
Ans: A
31:-Orthopantomogram is taken to rule out lesion in
A:-Mandible
B:-Maxilla
C:-Facial bone
D:-Skull
Ans: A
32:-Which of the following substance produces Piezo Electric Effect ?
A:-Quartz
B:-Gadolium Oxy Sulphide
C:-Sodium Iodide (Thalium Activated Crystals)
D:-Sodium Chloride
Ans: A
33:-The process by which electrons are emitted from a X-ray cathode filament
A:-Ionization
B:-Photoconduction
C:-Thermo luminescence
D:-Thermionic emission
Ans: D
34:-Superficial X-ray therapy include X-rays of potentials ranging from
A:-5 to 50 kilovolt
B:-50 to 150 kilovolt
C:-100 to 150 kilovolt
D:-150 to 300 kilovolt
Ans: B
35:-PET scan is
A:-Positive Emission Tomography
B:-Positron Emission Tomography
C:-Pulsatile Emission Tomography
D:-None of the above
Ans: B
36:-The bed of stomach is NOT formed by ____________ normally.
A:-Left Kidney
B:-Left suprarenal gland
C:-Splenic vein
D:-Tail of pancreas
Ans: A
37:-Unity film speed is
A:-`Gy^(-1)`
B:-`R^(-1)`
C:-`mS^(-1)`
D:-`S^(-1)`
Ans: B
38:-Maximum dose region in Cobalt-60 teletherapy lies at _________ cm from the surface.
A:-0.1 cm
B:-1 cm
C:-5 cm
D:-0.5 cm
Ans: D
39:-The ability to demonstrate closely placed structures in the subject as separate entities in the image is
A:-Resolution
B:-Brightness
C:-Contrast
D:-None
Ans: A
40:-In Cobalt-60 machine, which ray is used for external beam radiotherapy ?
A:-Alpha ray
B:-Beta ray
C:-Gamma ray
D:-Protons
Ans: C
41:-Lymphatics of breast drain into
A:-Posterior intercostal lymph node
B:-Axillary lymph node
C:-Internal mammary lymph node
D:-All of the above
Ans: D
42:-Contrast is more with screen film combination than direct X-ray exposure because
A:-X-ray to light conversion efficiency is more
B:-X-ray absorption efficiency is more
C:-Screen is more sensitive to high energy radiation
D:-Screen is more sensitive to low energy radiation
Ans: C
43:-Most common histopathology in cancer cervix is
A:-Squamous cell carcinoma
B:-Adenocarcinoma
C:-Lymphoma
D:-Melanoma
Ans: A
44:-Geometric unsharpness can be reduced by
A:-Reducing focal spot size
B:-Increasing object-image distance
C:-Decreasing focus-image distance
D:-Using tube with large focal spot size
Ans: A
45:-IMRT refers to
A:-Intensive Modulated Radiotherapy
B:-Intensity Modulated Radiotherapy
C:-Image Modulated Radiotherapy
D:-None of the above
Ans: B
46:-Most vascular part of bone is
A:-Epiphysis
B:-Metaphysis
C:-Diaphysis
D:-Epiphyseal cartilage
Ans: B
47:-`(cd//m2)/(mR//sec)` is
A:-Brightness gain
B:-Minification gain
C:-Conversion factor
D:-Flux gain
Ans: C
48:-Which interaction of X-rays is the basis of radiographic contrast between bone and soft tissues ?
A:-Photoelectric effect
B:-Contrast scattering
C:-Compton scattering
D:-Pair production
Ans: A
49:-The name of invisible image formed as a result of exposure to radiation which later becomes visible during photographic development
A:-Latent image
B:-Photographic image
C:-Fog
D:-Fixing
Ans: A
50:-In conventional radiation therapy, daily fraction dose given will be
A:-1 to 1.5 Gy
B:-1.8 to 2 Gy
C:-2 to 2.8 Gy
D:-None of the above
Ans: B
51:-_________ is the beam modifying device used for tilt of isodose curves from normal position.
A:-Wedge
B:-Diaphragm
C:-Collimator
D:-Cerrobend blocks
Ans: A
52:-Lymphatics from uterus drain to all except
A:-External iliac lymph nodes
B:-Internal iliac lymph nodes
C:-Inguinal lymph nodes
D:-Mesenteric lymph nodes
Ans: D
53:-Inherent filtration of X-ray tube is equivalent to
A:-<0.5 mm Al
B:-0.5-1 mm Al
C:-1.5 mm Al
D:-2.5 mm Al
Ans: B
54:-__________ is the cheapest and most commonly used imaging modality in the initial staging of Hodgkin's disease.
A:-CT scan
B:-MRI scan
C:-Ultrasonogram
D:-PET scan
Ans: A
55:-Which of the following layers of the film contain silver halide crystals ?
A:-Super coat
B:-Base
C:-Adhesive layer
D:-Emulsion
Ans: D
56:-Enteroclysis is used in the evaluation of
A:-Hepatobiliary system
B:-Fallopian tubes
C:-Small bowel
D:-Thecal sac
Ans: C
57:-___________ is a tissue equivalent material placed close to skin surface.
A:-Orfit shell
B:-Bolus
C:-Vaclock
D:-Cone
Ans: B
58:-Cancer cervix staging following is
A:-TNM staging
B:-GTNM staging
C:-FIGO staging
D:-None of the above
Ans: C
59:-The concentration of detectable hydrogen nuclei in a biological tissue is termed as
A:-Spin density
B:-Electron density
C:-Spin echo
D:-Gyromagnetic ratio
Ans: A
60:-Safe light used in dark room is related to film sensitive region of visible light as
A:-Low intensity
B:-Low volt
C:-Low frequency
D:-Low wavelength
Ans: C
61:-The ability of X-ray film or film-screen combination system to define an edge is
A:-Resolution
B:-Sharpness
C:-Speed
D:-Radiographic mottle
Ans: B
62:-Commonest site from which nasopharyngeal carcinoma arises is
A:-Torus tubaris
B:-Fossa of Rossenmuller
C:-Posterior pharyngeal wall
D:-Basisphenoid
Ans: B
63:-Radiation source used in HDR brachytherapy
A:-`226_(Ra)`
B:-`60_(Co)`
C:-`137_(Cs)`
D:-`199_(Ir)`
Ans: D
64:-The process by which exposed silver halide crystals are converted to metallic silver is called
A:-Development
B:-Fixing
C:-Rinsing
D:-Drying
Ans: A
65:-The speed of intensifying screen increases with all the following except
A:-Large crystal size
B:-Thick phosphor layer
C:-Reflective layer
D:-Absorptive layer
Ans: D
66:-Film fog is caused by
A:-Increased development of exposed silver halide crystals
B:-Reduced development of exposed silver halide crystals
C:-Development of unexposed silver halide crystals
D:-Removal of unexposed silver halide crystals
Ans: C
67:-Translate-rotate tube technology with multiple detectors is used in
A:-Fourth generation CT scan
B:-Third generation CT scan
C:-First generation CT scan
D:-Second generation CT scan
Ans: D
68:-Typical effective dose with a chest X-ray postero-anterior view is
A:-0.02 millisievert
B:-2 millisievert
C:-10 millisievert
D:-100 millisievert
Ans: A
69:-Uterus and fallopian tubes are assessed by
A:-Micturating cystourethrography
B:-Intravenous urethrography
C:-Hysterosalpingography
D:-Myelography
Ans: C
70:-Sialogram is used to study
A:-Salivary glands
B:-Spinal cord
C:-Small intestine
D:-Blood vessel
Ans: A
71:-Which of the following is an ionic contrast medium ?
A:-Iopamidol
B:-Iohexol
C:-Iopromide
D:-Ioxaglate
Ans: D
72:-Which is NOT true regarding mammography ?
A:-The generator must be able to maintain a very accurate Kvp in the range of 25-35 Kvp
B:-The X-ray tube has certain special design features, including a beryllium window and a molybdenum target
C:-Focal spot is very large
D:-The tube filter is 0.03 mm of molybdenum or 0.5 aluminium equivalent to absorb X-rays below the optimum Kvp range
Ans: C
73:-Stenver's view is used to assess
A:-Sella
B:-Mandible
C:-Greater tuberosity of humerus
D:-Petrous temporal bone
Ans: D
74:-Xiphisternal joint is at the level of
A:-`6^(th)` thoracic vertebra
B:-`9^(th)` thoracic vertebra
C:-`1^(st)` lumbar vertebra
D:-`3^(rd)` lumbar vertebra
Ans: B
75:-Lordotic view is used to demonstrate
A:-Exaggerated lumbar lordosis
B:-Para nasal sinuses
C:-Lung apices
D:-Middle lobe collapse
Ans: D
76:-In a postero-anterior view (PA view) of chest
A:-Cardiac shadow is magnified
B:-Scapula is projected over upper lobes
C:-Appears more diffusely opaque if overpenetrated
D:-Is adequate if 8-10 posterior ribs are seen above diaphragm
Ans: D
77:-The activator commonly used with rare earth phosphor gadolinium oxysulphide is
A:-Terbium
B:-Lanthanum
C:-Niobium
D:-Thulium
Ans: A
A:-Roentgen
B:-Becquerel
C:-Joseph Lister
D:-Khorana
Ans: B
22:-Lymphatic drainage of anal canal is to
A:-Inguinal lymph nodes
B:-External iliac lymph nodes
C:-Internal iliac lymph nodes
D:-Para aortic lymph nodes
Ans: A
23:-What is the main mode of heat transfer in rotating anode X-ray tube ?
A:-Conduction
B:-Convention
C:-Radiation
D:-All the above
Ans: C
24:-The plane that divides the body into right and left halves
A:-Median sagittal plane
B:-Coronal plane
C:-Axial plane
D:-Mid-axillary plane
Ans: A
25:-Half-life of Cobalt-60 is
A:-6.26 years
B:-5.67 years
C:-5.26 years
D:-6.67 years
Ans: C
26:-Most common histopathology in head and neck carcinoma is
A:-Squamous cell carcinoma
B:-Adenocarcinoma
C:-Lymphoma
D:-Melanoma
Ans: A
27:-Lymphatics from tonsil drain into
A:-Mediastinal lymph nodes
B:-Jugulodigastric lymph nodes
C:-Submental lymph nodes
D:- Lower deep cervical lymph nodes
Ans: B
28:-Which of the following is NOT a deterministic effect of radiation ?
A:-Skin erythema
B:-Sterility
C:-Carcinogenesis
D:-Fetal abnormality
Ans: C
29:-Most common histopathology of carcinoma breast is
A:-Adenocarcinoma
B:-Infiltrating duct carcinoma
C:-Lobular carcinoma
D:-Squamous cell carcinoma
Ans: B
30:-In which projection, is the central ray incident on the position aspect and emerges from the anterior aspect of the body ?
A:-Posteroanterior projection
B:-Anteroposterior projection
C:-Lateral projection
D:-Oblique projection
Ans: A
31:-Orthopantomogram is taken to rule out lesion in
A:-Mandible
B:-Maxilla
C:-Facial bone
D:-Skull
Ans: A
32:-Which of the following substance produces Piezo Electric Effect ?
A:-Quartz
B:-Gadolium Oxy Sulphide
C:-Sodium Iodide (Thalium Activated Crystals)
D:-Sodium Chloride
Ans: A
33:-The process by which electrons are emitted from a X-ray cathode filament
A:-Ionization
B:-Photoconduction
C:-Thermo luminescence
D:-Thermionic emission
Ans: D
34:-Superficial X-ray therapy include X-rays of potentials ranging from
A:-5 to 50 kilovolt
B:-50 to 150 kilovolt
C:-100 to 150 kilovolt
D:-150 to 300 kilovolt
Ans: B
35:-PET scan is
A:-Positive Emission Tomography
B:-Positron Emission Tomography
C:-Pulsatile Emission Tomography
D:-None of the above
Ans: B
36:-The bed of stomach is NOT formed by ____________ normally.
A:-Left Kidney
B:-Left suprarenal gland
C:-Splenic vein
D:-Tail of pancreas
Ans: A
37:-Unity film speed is
A:-`Gy^(-1)`
B:-`R^(-1)`
C:-`mS^(-1)`
D:-`S^(-1)`
Ans: B
38:-Maximum dose region in Cobalt-60 teletherapy lies at _________ cm from the surface.
A:-0.1 cm
B:-1 cm
C:-5 cm
D:-0.5 cm
Ans: D
39:-The ability to demonstrate closely placed structures in the subject as separate entities in the image is
A:-Resolution
B:-Brightness
C:-Contrast
D:-None
Ans: A
40:-In Cobalt-60 machine, which ray is used for external beam radiotherapy ?
A:-Alpha ray
B:-Beta ray
C:-Gamma ray
D:-Protons
Ans: C
41:-Lymphatics of breast drain into
A:-Posterior intercostal lymph node
B:-Axillary lymph node
C:-Internal mammary lymph node
D:-All of the above
Ans: D
42:-Contrast is more with screen film combination than direct X-ray exposure because
A:-X-ray to light conversion efficiency is more
B:-X-ray absorption efficiency is more
C:-Screen is more sensitive to high energy radiation
D:-Screen is more sensitive to low energy radiation
Ans: C
43:-Most common histopathology in cancer cervix is
A:-Squamous cell carcinoma
B:-Adenocarcinoma
C:-Lymphoma
D:-Melanoma
Ans: A
44:-Geometric unsharpness can be reduced by
A:-Reducing focal spot size
B:-Increasing object-image distance
C:-Decreasing focus-image distance
D:-Using tube with large focal spot size
Ans: A
45:-IMRT refers to
A:-Intensive Modulated Radiotherapy
B:-Intensity Modulated Radiotherapy
C:-Image Modulated Radiotherapy
D:-None of the above
Ans: B
46:-Most vascular part of bone is
A:-Epiphysis
B:-Metaphysis
C:-Diaphysis
D:-Epiphyseal cartilage
Ans: B
47:-`(cd//m2)/(mR//sec)` is
A:-Brightness gain
B:-Minification gain
C:-Conversion factor
D:-Flux gain
Ans: C
48:-Which interaction of X-rays is the basis of radiographic contrast between bone and soft tissues ?
A:-Photoelectric effect
B:-Contrast scattering
C:-Compton scattering
D:-Pair production
Ans: A
49:-The name of invisible image formed as a result of exposure to radiation which later becomes visible during photographic development
A:-Latent image
B:-Photographic image
C:-Fog
D:-Fixing
Ans: A
50:-In conventional radiation therapy, daily fraction dose given will be
A:-1 to 1.5 Gy
B:-1.8 to 2 Gy
C:-2 to 2.8 Gy
D:-None of the above
Ans: B
51:-_________ is the beam modifying device used for tilt of isodose curves from normal position.
A:-Wedge
B:-Diaphragm
C:-Collimator
D:-Cerrobend blocks
Ans: A
52:-Lymphatics from uterus drain to all except
A:-External iliac lymph nodes
B:-Internal iliac lymph nodes
C:-Inguinal lymph nodes
D:-Mesenteric lymph nodes
Ans: D
53:-Inherent filtration of X-ray tube is equivalent to
A:-<0.5 mm Al
B:-0.5-1 mm Al
C:-1.5 mm Al
D:-2.5 mm Al
Ans: B
54:-__________ is the cheapest and most commonly used imaging modality in the initial staging of Hodgkin's disease.
A:-CT scan
B:-MRI scan
C:-Ultrasonogram
D:-PET scan
Ans: A
55:-Which of the following layers of the film contain silver halide crystals ?
A:-Super coat
B:-Base
C:-Adhesive layer
D:-Emulsion
Ans: D
56:-Enteroclysis is used in the evaluation of
A:-Hepatobiliary system
B:-Fallopian tubes
C:-Small bowel
D:-Thecal sac
Ans: C
57:-___________ is a tissue equivalent material placed close to skin surface.
A:-Orfit shell
B:-Bolus
C:-Vaclock
D:-Cone
Ans: B
58:-Cancer cervix staging following is
A:-TNM staging
B:-GTNM staging
C:-FIGO staging
D:-None of the above
Ans: C
59:-The concentration of detectable hydrogen nuclei in a biological tissue is termed as
A:-Spin density
B:-Electron density
C:-Spin echo
D:-Gyromagnetic ratio
Ans: A
60:-Safe light used in dark room is related to film sensitive region of visible light as
A:-Low intensity
B:-Low volt
C:-Low frequency
D:-Low wavelength
Ans: C
61:-The ability of X-ray film or film-screen combination system to define an edge is
A:-Resolution
B:-Sharpness
C:-Speed
D:-Radiographic mottle
Ans: B
62:-Commonest site from which nasopharyngeal carcinoma arises is
A:-Torus tubaris
B:-Fossa of Rossenmuller
C:-Posterior pharyngeal wall
D:-Basisphenoid
Ans: B
63:-Radiation source used in HDR brachytherapy
A:-`226_(Ra)`
B:-`60_(Co)`
C:-`137_(Cs)`
D:-`199_(Ir)`
Ans: D
64:-The process by which exposed silver halide crystals are converted to metallic silver is called
A:-Development
B:-Fixing
C:-Rinsing
D:-Drying
Ans: A
65:-The speed of intensifying screen increases with all the following except
A:-Large crystal size
B:-Thick phosphor layer
C:-Reflective layer
D:-Absorptive layer
Ans: D
66:-Film fog is caused by
A:-Increased development of exposed silver halide crystals
B:-Reduced development of exposed silver halide crystals
C:-Development of unexposed silver halide crystals
D:-Removal of unexposed silver halide crystals
Ans: C
67:-Translate-rotate tube technology with multiple detectors is used in
A:-Fourth generation CT scan
B:-Third generation CT scan
C:-First generation CT scan
D:-Second generation CT scan
Ans: D
68:-Typical effective dose with a chest X-ray postero-anterior view is
A:-0.02 millisievert
B:-2 millisievert
C:-10 millisievert
D:-100 millisievert
Ans: A
69:-Uterus and fallopian tubes are assessed by
A:-Micturating cystourethrography
B:-Intravenous urethrography
C:-Hysterosalpingography
D:-Myelography
Ans: C
70:-Sialogram is used to study
A:-Salivary glands
B:-Spinal cord
C:-Small intestine
D:-Blood vessel
Ans: A
71:-Which of the following is an ionic contrast medium ?
A:-Iopamidol
B:-Iohexol
C:-Iopromide
D:-Ioxaglate
Ans: D
72:-Which is NOT true regarding mammography ?
A:-The generator must be able to maintain a very accurate Kvp in the range of 25-35 Kvp
B:-The X-ray tube has certain special design features, including a beryllium window and a molybdenum target
C:-Focal spot is very large
D:-The tube filter is 0.03 mm of molybdenum or 0.5 aluminium equivalent to absorb X-rays below the optimum Kvp range
Ans: C
73:-Stenver's view is used to assess
A:-Sella
B:-Mandible
C:-Greater tuberosity of humerus
D:-Petrous temporal bone
Ans: D
74:-Xiphisternal joint is at the level of
A:-`6^(th)` thoracic vertebra
B:-`9^(th)` thoracic vertebra
C:-`1^(st)` lumbar vertebra
D:-`3^(rd)` lumbar vertebra
Ans: B
75:-Lordotic view is used to demonstrate
A:-Exaggerated lumbar lordosis
B:-Para nasal sinuses
C:-Lung apices
D:-Middle lobe collapse
Ans: D
76:-In a postero-anterior view (PA view) of chest
A:-Cardiac shadow is magnified
B:-Scapula is projected over upper lobes
C:-Appears more diffusely opaque if overpenetrated
D:-Is adequate if 8-10 posterior ribs are seen above diaphragm
Ans: D
77:-The activator commonly used with rare earth phosphor gadolinium oxysulphide is
A:-Terbium
B:-Lanthanum
C:-Niobium
D:-Thulium
Ans: A
78:-Auto transformer works on the principle of
A:-Self induction
B:-Mutual induction
C:-Ohms law
D:-Joules law
Ans: A
79:-Radioactivity first discovered by
A:-William Conrad Roentgen
B:-Madam Curie
C:-Henry Becquerel
D:-Charles Rutherford
Ans: C
80:-X-rays were discovered in the year
A:-1985
B:-1895
C:-1589
D:-1986
Ans: B
81:-Use of intensifying screen results
A:-Lower patient dose
B:-Increase radiographic contrast
C:-All of the above
D:-None of the above
Ans: C
82:-In a rotating anode x-ray tube the anode having an Area "A" is tilted to an angle of 10 degree. Then the effective focal area will be
A:-A sin10
B:-A × 20
C:-A – 20
D:-A cos20
Ans: A
83:-________ is a double emulsion film ?
A:-Mammographic film
B:-Duplicating film
C:-Subtraction film
D:-Dental film
Ans: D
84:-Which of the following is not used as a phosphor in the intensifying screens used for radiography ?
A:-Calcium tungstate
B:-Zinc sulphide
C:-Gadolinium
D:-Aluminum
Ans: D
85:-The speed of intensifying screen is affected by
A:-Phosphor composition
B:-Crystal size
C:-Presence of reflective layer
D:-All of the above
Ans: D
86:-_________ is not an ingredient of developing solution.
A:-Hydroquinone
B:-Sodium Carbonate
C:-Potassium bromide
D:-Hypo
Ans: D
87:-Chrome alum is used as a ________ in fixer solution.
A:-Fixing agent
B:-Preservative
C:-Hardener
D:-Acid medium
Ans: C
88:-Which of the following is not a reason for the fog formation in x-ray films ?
A:-Exposure to light
B:-Exposure to x-rays or radionuclide
C:-Outdated film
D:-Static electricity due to friction between film and other objects
Ans: D
89:-Streaking in x-ray film caused by the following
A:-Bending of film
B:-Failure to agitate the film in developer
C:-Water droplets on the surface of film
D:-Formation of air bubbles in the developer
Ans: B
90:-For female patients of reproductive age non urgent abdomen and pelvic radiographs should be taken
A:-Within 10 days following menstrual period
B:-10 to 20 days interval following menstrual period
C:-20 to 30 days interval following menstrual period
D:-There is no such restriction
Ans: A
91:-Reason for unsharpness in a radiographic image is
A:-Movement
B:-Focal spot size
C:-Use of screen
D:-All of the above
Ans: D
92:-Unequal magnification of different portions of same object in a radiograph is called
A:-Crossover
B:-Distortion
C:-Unsharpness
D:-Fog
Ans: B
93:-Most important factor for radiographic contrast is
A:-KVp
B:-mA
C:-mAs
D:-Focus to film distance
Ans: A
94:-Anal atresia in Neonates can be diagnosed by
A:-Lateral decubitus view
B:-AP supine
C:-Invertogram
D:-Abdomen AP erect
Ans: C
95:-Delineation of contour and cavity of uterus and tubal potency and can be established by
A:-Nephrotomography
B:-Hysteriosalpingography (HSG)
C:-KUB examination
D:-None of the above
Ans: B
96:-Small lesions and mucosal lining are more clearly visible in _______ radiography.
A:-Single contrast method
B:-Double contrast method
C:-No contrast
D:-None of the above
Ans: B
97:-The radiographic examination of choice to demonstrate the whole of the small bowel from duodenal flexture to ileocaceal valve is
A:-Barium Meal Follow through
B:-Hyptonic Dudenography
C:-Conventional barium meal
D:-None of the above
Ans: A
98:-The radiographic investigation of lacrimal system is
A:-Arthography
B:-Cholangiography
C:-Sialography
D:-Dacryocystography
Ans: D
99:-The photo conductor used in Xeroradiography is
A:-Amorphous Selenium
B:-Sodium Iodine
C:-Calcium Tungstate
D:-Molybdenum
Ans: A
100:-True statement regarding the radiography of cervical spine is
A:-No tube angulations required in the AP view
B:-The tube is angled 5 to 10 degree cephaled
C:-A short focus to film distance required for lateral projection
D:-None of the above
Ans: B
A:-Self induction
B:-Mutual induction
C:-Ohms law
D:-Joules law
Ans: A
79:-Radioactivity first discovered by
A:-William Conrad Roentgen
B:-Madam Curie
C:-Henry Becquerel
D:-Charles Rutherford
Ans: C
80:-X-rays were discovered in the year
A:-1985
B:-1895
C:-1589
D:-1986
Ans: B
81:-Use of intensifying screen results
A:-Lower patient dose
B:-Increase radiographic contrast
C:-All of the above
D:-None of the above
Ans: C
82:-In a rotating anode x-ray tube the anode having an Area "A" is tilted to an angle of 10 degree. Then the effective focal area will be
A:-A sin10
B:-A × 20
C:-A – 20
D:-A cos20
Ans: A
83:-________ is a double emulsion film ?
A:-Mammographic film
B:-Duplicating film
C:-Subtraction film
D:-Dental film
Ans: D
84:-Which of the following is not used as a phosphor in the intensifying screens used for radiography ?
A:-Calcium tungstate
B:-Zinc sulphide
C:-Gadolinium
D:-Aluminum
Ans: D
85:-The speed of intensifying screen is affected by
A:-Phosphor composition
B:-Crystal size
C:-Presence of reflective layer
D:-All of the above
Ans: D
86:-_________ is not an ingredient of developing solution.
A:-Hydroquinone
B:-Sodium Carbonate
C:-Potassium bromide
D:-Hypo
Ans: D
87:-Chrome alum is used as a ________ in fixer solution.
A:-Fixing agent
B:-Preservative
C:-Hardener
D:-Acid medium
Ans: C
88:-Which of the following is not a reason for the fog formation in x-ray films ?
A:-Exposure to light
B:-Exposure to x-rays or radionuclide
C:-Outdated film
D:-Static electricity due to friction between film and other objects
Ans: D
89:-Streaking in x-ray film caused by the following
A:-Bending of film
B:-Failure to agitate the film in developer
C:-Water droplets on the surface of film
D:-Formation of air bubbles in the developer
Ans: B
90:-For female patients of reproductive age non urgent abdomen and pelvic radiographs should be taken
A:-Within 10 days following menstrual period
B:-10 to 20 days interval following menstrual period
C:-20 to 30 days interval following menstrual period
D:-There is no such restriction
Ans: A
91:-Reason for unsharpness in a radiographic image is
A:-Movement
B:-Focal spot size
C:-Use of screen
D:-All of the above
Ans: D
92:-Unequal magnification of different portions of same object in a radiograph is called
A:-Crossover
B:-Distortion
C:-Unsharpness
D:-Fog
Ans: B
93:-Most important factor for radiographic contrast is
A:-KVp
B:-mA
C:-mAs
D:-Focus to film distance
Ans: A
94:-Anal atresia in Neonates can be diagnosed by
A:-Lateral decubitus view
B:-AP supine
C:-Invertogram
D:-Abdomen AP erect
Ans: C
95:-Delineation of contour and cavity of uterus and tubal potency and can be established by
A:-Nephrotomography
B:-Hysteriosalpingography (HSG)
C:-KUB examination
D:-None of the above
Ans: B
96:-Small lesions and mucosal lining are more clearly visible in _______ radiography.
A:-Single contrast method
B:-Double contrast method
C:-No contrast
D:-None of the above
Ans: B
97:-The radiographic examination of choice to demonstrate the whole of the small bowel from duodenal flexture to ileocaceal valve is
A:-Barium Meal Follow through
B:-Hyptonic Dudenography
C:-Conventional barium meal
D:-None of the above
Ans: A
98:-The radiographic investigation of lacrimal system is
A:-Arthography
B:-Cholangiography
C:-Sialography
D:-Dacryocystography
Ans: D
99:-The photo conductor used in Xeroradiography is
A:-Amorphous Selenium
B:-Sodium Iodine
C:-Calcium Tungstate
D:-Molybdenum
Ans: A
100:-True statement regarding the radiography of cervical spine is
A:-No tube angulations required in the AP view
B:-The tube is angled 5 to 10 degree cephaled
C:-A short focus to film distance required for lateral projection
D:-None of the above
Ans: B
- General Medicine
- Medicine- Page 1
- Medicine- Page 2
- Medicine- Page 3
- Medicine- Page 4
- Medicine- Page 5
- Medicine- Page 6
- Medicine- Page 7
- Medicine- Page 8
- Medicine- Page 9
- Medicine- Page 10
- Medicine- Page 11
- Anaesthesiology
- Clinical Psychology
- Community Medicine
- Community Medicine- Page 1
- CSR Technician- Medicine
- Dental
- Dental- Page 1
- Dental- Page 2
- Dental- Page 3
- Dermatology and Venerology
- Dialysis
- ECG Technician
- ENT
- General Surgery
- Genito Urinary Surgery
- Nursing
- Nursing -Page 1
- Nursing -Page 2
- Nursing -Page 3
- Nursing -Page 4
- Nursing -Page 5
- Obstetrics and Gynaecology
- Obstetrics and Gynaecology- Page 1
- Opthalmology
- Orthopaedics
- Orthopaedics- Page 1
- Oto-Rhino-Laryngology (ENT)
- Paediatrics
- Paediatrics- Page 1
- Pathology
- Pathology-Page 1
- Radiodiagnosis
- Radiotheraphy
- Radiotheraphy- Page 1
- Radiotheraphy- Page 2
- Radiotheraphy- Page 3
- Radiotheraphy- Page 4
- Rehabilitation Technician
- Social Medicine and Community Health
- Speech Pathology
- Surgery, Obstetrics and Gynaecology
- Surgical Gasteroenterology
- Toxicology
- Transfusion Medicine (Bloodbank)
- Tuberculosis and Respiratory Medicine