FINAL QUALIFYING EXAMINATION FOR
MEDICAL IMAGE PROCESSING /X-RAY TECHNICIANS AT
CONDUCTED BY: THE NIGERIAN INSTITUTE OF RADIOGRAPHERS
(Education Arm of Radiographers Registration Board of Nigeria)
NAME OF CANDIDATE:
EXAM NUMBER
DATE: 25th October, 2023 TIME: 2½ HOUR
INSTRUCTION: This paper comprises of sections A-G with objectives questions. Choose the best
option following each question.
SECTION A: DARKROOM MANAGEMENT
1. What is the purpose of a darkroom in radiography?
A) To store X-ray equipment
B) To develop photographic films
C) To conduct patient examinations
D) To prepare X-ray contrast agents
2. Why is a darkroom environment essential for film processing?
A) To keep the room well-lit for better visibility
B) To create a comfortable working space
C) To prevent light exposure that can damage the film
D) To maintain a controlled temperature for film development
3. What is the main purpose of a safelight in the darkroom?
A) To provide emergency lighting during power outages
B) To help the radiographer see the film clearly
C) To eliminate all light for film protection
D) To provide low-intensity light that doesn’t fog the film
4. Why is it important to control humidity levels in the darkroom?
A) To ensure a comfortable working environment
B) To prevent the development of mold on films
C) To improve film contrast
D) To reduce chemical fumes
5. What is the recommended temperature range for a darkroom environment?
A) 10°C - 15°C (50°F - 59°F)
B) 20°C - 25°C (68°F - 77°F)
C) 30°C - 35°C (86°F - 95°F)
D) 40°C - 45°C (104°F - 113°F)
