MHMS • 2026 • Paper-IV (Technical Paper - II)
The risk of infection is highest when there is:
A)
Needle stick injury
B)
Eye contact
C)
Speaking to patient
D)
Walking in ward
Option B is correct: Eye contact.
MHMS • 2026 • Paper-IV (Technical Paper - II)
According to the Inverse Square Law, if distance from the source is doubled, radiation intensity becomes:
A)
Two times
B)
Half
C)
One-fourth
D)
Four times
Option C is correct: One-fourth.
MHMS • 2026 • Paper-IV (Technical Paper - II)
Somatic effects of radiation occur in:
A)
The exposed individual only
B)
Future generations
C)
Plants only
D)
Animals only
Option A is correct: The exposed individual only.
MHMS • 2026 • Paper-IV (Technical Paper - II)
Calibration in radiotherapy is mainly performed to ensure:
A)
Faster treatment delivery
B)
Accurate radiation dose output
C)
Overdose or underdose to the patient
D)
Protect patient and staff safety
Option B is correct: Accurate radiation dose output.
MHMS • 2026 • Paper-IV (Technical Paper - II)
The effectiveness of radiation therapy depends mainly on:
A)
Radiation dose
B)
Oxygen level
C)
Cell type
D)
All of the above
Option D is correct: All of the above.
MHMS • 2026 • Paper-IV (Technical Paper - II)
The part of the cell that controls all cellular activities is:
A)
Cytoplasm
B)
Nucleus
C)
Ribosome
D)
Mitochondria
Option B is correct: Nucleus.
MHMS • 2026 • Paper-IV (Technical Paper - II)
Which of the following radicals is commonly produced in radiolysis of water?
A)
Hydroxyl radical
B)
Sodium radical
C)
Calcium radical
D)
Iron radical
Option A is correct: Hydroxyl radical.
MHMS • 2026 • Paper-IV (Technical Paper - II)
The first step in cancer management is usually:
A)
Radiotherapy
B)
Chemotherapy
C)
Diagnosis and staging
D)
Palliative care
Option B is correct: Chemotherapy.
MHMS • 2026 • Paper-IV (Technical Paper - II)
The main cause of cervical cancer is infection with:
A)
HPV
B)
EBV
C)
HIV
D)
Hepatitis virus
Option A is correct: HPV.
MHMS • 2026 • Paper-IV (Technical Paper - II)
The main treatment for leukemia is:
A)
Chemotherapy
B)
Radiotherapy
C)
Bone marrow transplant
D)
All of the above
Option D is correct: All of the above.
MHMS • 2026 • Paper-IV (Technical Paper - II)
The most common malignant eye tumor in children is:
A)
Melanoma
B)
Retinoblastoma
C)
Glioma
D)
Lymphoma
Option B is correct: Retinoblastoma.
MHMS • 2026 • Paper-IV (Technical Paper - II)
The most common histological type of oropharyngeal cancer is:
A)
Adenocarcinoma
B)
Squamous cell carcinoma
C)
Sarcoma
D)
Lymphoma
Option B is correct: Squamous cell carcinoma.
MHMS • 2026 • Paper-IV (Technical Paper - II)
Tumors originating from nerve sheath cells are:
A)
Schwannomas
B)
Adenomas
C)
Sarcomas
D)
Osteomas
Option A is correct: Schwannomas.
MHMS • 2026 • Paper-IV (Technical Paper - II)
Ethical responsibility means:
A)
Following moral principles in professional practice
B)
Only following doctors’ orders without question
C)
Breaking hospital rules
D)
Sharing patient information freely for research
Option A is correct: Following moral principles in professional practice.
MHMS • 2026 • Paper-IV (Technical Paper - II)
GTV (Gross Tumor Volume) refers to:
A)
Microscopic tumor spread
B)
Visible or palpable tumor mass
C)
Normal tissue around tumor
D)
Organ motion area
Option B is correct: Visible or palpable tumor mass.
MHMS • 2026 • Paper-IV (Technical Paper - II)
According to the Law of Bergonié and Tribondeau, cells are more radiosensitive if they:
A)
are highly differentiated
B)
divide rapidly
C)
are mature
D)
are large
Option B is correct: divide rapidly.
MHMS • 2026 • Paper-IV (Technical Paper - II)
Which machine requires stronger shielding due to higher energy photons?
A)
Diagnostic X-ray
B)
Telecobalt unit
C)
Linear accelerator
D)
Ultrasound
Option D is correct: Ultrasound.
MHMS • 2026 • Paper-IV (Technical Paper - II)
A static wedge is:
A)
A motorized moving wedge
B)
A fixed metal wedge placed in the beam
C)
A computer-generated wedge
D)
A bolus material
Option B is correct: A fixed metal wedge placed in the beam.
MHMS • 2026 • Paper-IV (Technical Paper - II)
The working principle of a TLD is based on:
A)
Photoelectric effect
B)
Thermoluminescence
C)
Radiology and radiotherapy
D)
Personnel radiation monitoring
Option C is correct: Radiology and radiotherapy.
MHMS • 2026 • Paper-IV (Technical Paper - II)
Which type of lung cancer is more radioresistant?
A)
Small cell lung carcinoma
B)
Non-small cell lung carcinoma
C)
Adenocarcinoma of the lung
D)
Squamous cell carcinoma of the lung
Option B is correct: Non-small cell lung carcinoma.
MHMS • 2026 • Paper-IV (Technical Paper - II)
The main purpose of quality assurance (QA) in radiotherapy is to:
A)
Reduce the number of treatment sessions
B)
Ensure safe, accurate, and consistent delivery of radiation
C)
Replace fractionation
D)
Only check patient positioning
Option B is correct: Ensure safe, accurate, and consistent delivery of radiation.
MHMS • 2026 • Paper-IV (Technical Paper - II)
If one HVL of a material reduces radiation intensity to 50%, two HVLs will reduce it to:
A)
25%
B)
50%
C)
75%
D)
10%
Option A is correct: 25%.
MHMS • 2026 • Paper-IV (Technical Paper - II)
The door of a teletherapy bunker usually shields against:
A)
Primary beam
B)
Secondary radiation
C)
Ultrasound waves
D)
Magnetic fields
Option C is correct: Ultrasound waves.
MHMS • 2026 • Paper-IV (Technical Paper - II)
A standard electrometer is usually connected with:
A)
Ionization chamber
B)
Linear Accelerator
C)
Surgery monitoring devices
D)
Thermometer
Option A is correct: Ionization chamber.
MHMS • 2026 • Paper-IV (Technical Paper - II)
VMAT can deliver treatment in:
A)
One or multiple arcs
B)
Only one direction
C)
Only two beams
D)
No rotation
Option A is correct: One or multiple arcs.
