Dark Room MCQ Questions PDF

Dark room MCQ 1. What is the minimum distance for a direct safe-light lamp from the working surface? A) 0.5 m B) 1.2 m C) 2.1 m D) 3.0 m 2. What type of lighting directs the light towards the ceiling, which then reflects it back into the room? A) Direct safe lighting B) Indirect safe lighti...

Dark room MCQ 1. What is the minimum distance for a direct safe-light lamp from the working surface? A) 0.5 m B) 1.2 m C) 2.1 m D) 3.0 m 2. What type of lighting directs the light towards the ceiling, which then reflects it back into the room? A) Direct safe lighting B) Indirect safe lighting C) Overhead lighting D) Fluorescent lighting 3. What is the primary purpose of a pass box in a darkroom? A) To increase light intensity B) To store films securely C) To prevent opening both doors simultaneously D) To provide ventilation 2 4. Which of the following is part of a manual processing unit? A) X-ray machine B) Film hopper C) Digital scanner D) Safe-lighting fixture 5. What is used for film storage in a darkroom? A) Cupboards, hoppers, or drawers B) Pass box and safe-light C) X-ray proof doors D) Reflective ceilings 6. Which chemical is NOT part of the radiographic film processing? A) Developer B) Fixer C) Water D) Fluoride 7. What is the recommended height for indirect safe lighting above the floor? A) 1.2 m B) 1.5 m C) 2.1 m D) 3.0 m 3 8. Which equipment is used to suspend films during manual processing? A) Cassette hatches B) Hangers C) Film hopper D) Pass box 9. What is the purpose of radiology film duplication? A) To enhance image contrast B) To make an identical copy of a film C) To develop digital images D) To store films securely 10. In darkroom design, how should the layout be organized? A) By random placement of equipment B) By separating dry and wet sections C) By clustering all equipment together D) By installing multiple X-ray sources 4 Answers 1. B 2. B 3. C 4. B 5. A 6. D 7. C 8. B 9. B 10. B 5 1. What is the main purpose of an X-ray film? A) Store humidity B) Provide a permanent record of the X-ray image C) Protect against radiation D) Absorb pressure marks 2. What is the base material of an X-ray film? A) Plastic B) Silver halide crystals C) Cellulose polyester D) Gelatin 3. What is the main composition of the emulsion layer in an X-ray film? A) Silver bromide (AgBr) and silver iodide (AgI) B) Cellulose polyester C) Humidity-resistant material D) Gelatin 6 4. What is the term for the invisible image produced by exposure to radiation? A) Manifest image B) Pressure artifact C) Latent image D) Radiographic contrast 5. What is the recommended storage position for X-ray film packages? A) Horizontally stacked B) On edge, like books in a library C) Vertically stacked in a pile D) Rolled and stored 6. Which size is NOT a standard radiographic film size? A) 14 x 17 inches B) 8 x 10 inches C) 10 x 18 inches D) 11 x 14 inches 7. What protects the emulsion layer of the X-ray film from damage? A) Cellulose polyester B) Adhesive layer C) Protective gelatin coating D) Silver halide crystals 7 8. What is a key safety measure for darkroom electrical equipment? A) Trailing cables allowed B) Avoiding proximity to sinks and manual processing units C) Keeping switches at floor level D) Avoiding earthing appliances 9. What environmental factor does NOT affect X-ray film? A) Humidity B) Visible light C) Ionizing radiation D) Electrical current 10. What should staff do before handling processing chemicals? A) Ignore product labels B) Read the mixing instructions C) Skip checking expiry dates D) Store them horizontally 8 Answers 1. B 2. C 3. A 4. C 5. B 6. C 7. C 8. B 9. D 10. B 9 1. What do intensifying screens do in x-ray cassettes? A) Reduce radiation dose B) Increase exposure time C) Block x-rays D) Create motion blur 2. How many screens are used in cassettes with double emulsion films? A) One B) Two C) Three D) None 3. What type of film and screen are used in mammography? A) Double screen, double film B) Single screen, single film C) No screen, no film D) Two screens on one side 10 4. What does the phosphorus layer in the screen do? A) Reflects light B) Converts x-rays to visible light C) Protects the film D) Absorbs visible light 5. How should intensifying screens be cleaned? A) With a damp cloth B) Using chemicals C) By soaking in water D) With a dry cloth 11 Answers 1. A) Reduce radiation dose 2. B) Two 3. B) Single screen, single film 4. B) Converts x-rays to visible light 5. A) With a damp cloth 12