X-Ray Technician Mock Test – Free Online Practice

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Practice Questions (30 of 250)

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  1. Which type of tissue covers the body surface and lines internal organs? / शरीर की सतह को ढंकने और आंतरिक अंगों को अस्तर देने वाला ऊतक कौन सा है?
    (A) Muscle tissue
    (B) Nerve tissue
    (C) Epithelium | उपकला (Epithelium)
    (D) Connective tissue
    ✅ Answer & Explanation
    Sahi jawab: C) Epithelium | उपकला (Epithelium)
    Explanation: Epithelial tissue forms the outer layer of skin and the lining of various systems[cite: 218].
  2. What is the process of bone formation called? / हड्डियों के निर्माण की प्रक्रिया को क्या कहा जाता है?
    (A) Glycolysis
    (B) Phagocytosis
    (C) Osteogenesis (Ossification) | ऑस्टियोजेनेसिस
    (D) Hemolysis
    ✅ Answer & Explanation
    Sahi jawab: C) Osteogenesis (Ossification) | ऑस्टियोजेनेसिस
    Explanation: Osteology deals with the formation, function, and growth of bones[cite: 219].
  3. The union of an ovum and a spermatozoon is known as: / एक अंडे और एक शुक्राणु के मिलन को कहा जाता है:
    (A) Ovulation
    (B) Fertilization | निषेचन (Fertilization)
    (C) Differentiation
    (D) Segmentation
    ✅ Answer & Explanation
    Sahi jawab: B) Fertilization | निषेचन (Fertilization)
    Explanation: Fertilization is the first step in embryology leading to the development of various systems[cite: 220].
  4. What is the primary reason for performing a 'Chest Lordotic View'? / 'चेस्ट लॉर्डोटिक व्यू' (Lordotic View) करने का प्राथमिक कारण क्या है?
    (A) To visualize the lung apices without clavicle interference | फेफड़ों के ऊपरी हिस्से (Apices) को देखना
    (B) To see the heart better
    (C) To see ribs
    (D) To check the stomach
    ✅ Answer & Explanation
    Sahi jawab: A) To visualize the lung apices without clavicle interference | फेफड़ों के ऊपरी हिस्से (Apices) को देखना
    Explanation: The lordotic view moves the clavicles (beauty bones) upward to provide a clear view of the lung apices, often to detect TB or tumors. [cite: 8]
  5. A 'Lateral Decubitus' view of the abdomen is primarily used to detect: / पेट का 'लैटरल डिकुबिटस' (Lateral Decubitus) व्यू मुख्य रूप से क्या पता लगाने के लिए किया जाता है?
    (A) Skin color
    (B) Bone fractures
    (C) Muscle growth
    (D) Air-fluid levels or free intraperitoneal air | हवा और तरल का स्तर
    ✅ Answer & Explanation
    Sahi jawab: D) Air-fluid levels or free intraperitoneal air | हवा और तरल का स्तर
    Explanation: This view is used when a patient cannot stand, helping to identify free air (pneumoperitoneum) or fluid levels. [cite: 8]
  6. In a 'Left Lateral Decubitus' position, the patient is lying on their: / 'लेफ्ट लैटरल डिकुबिटस' स्थिति में, रोगी अपनी किस तरफ लेटा होता है?
    (A) Stomach
    (B) Back
    (C) Left side | बाईं करवट
    (D) Right side
    ✅ Answer & Explanation
    Sahi jawab: C) Left side | बाईं करवट
    Explanation: The view is named after the side the patient is lying on. In this case, the left side is down. [cite: 8]
  7. Which type of radiation effect is 'probability-based' and has no threshold dose? / किस प्रकार का विकिरण प्रभाव 'संभावना' पर आधारित है और इसकी कोई सीमा (threshold) नहीं है?
    (A) None
    (B) Deterministic effect
    (C) Stochastic effect | स्टोकेस्टिक प्रभाव
    (D) Acute effect
    ✅ Answer & Explanation
    Sahi jawab: C) Stochastic effect | स्टोकेस्टिक प्रभाव
    Explanation: Stochastic effects, like cancer or genetic mutations, can occur at any dose level; higher dose only increases the probability. [cite: 8]
  8. Radiation-induced 'Cataracts' or 'Skin Erythema' (redness) are examples of: / विकिरण के कारण 'मोतियाबिंद' या 'त्वचा की लालिमा' किसके उदाहरण हैं?
    (A) None
    (B) Deterministic (Non-stochastic) effects | डिटरमिनिस्टिक प्रभाव
    (C) Genetic effects
    (D) Stochastic effects
    ✅ Answer & Explanation
    Sahi jawab: B) Deterministic (Non-stochastic) effects | डिटरमिनिस्टिक प्रभाव
    Explanation: Deterministic effects occur only after reaching a certain threshold dose and their severity increases with the dose. [cite: 8]
  9. Which cells in the human body are most sensitive to radiation? / मानव शरीर की कौन सी कोशिकाएं विकिरण के प्रति सबसे अधिक संवेदनशील होती हैं?
    (A) Bone cells
    (B) Muscle cells
    (C) Rapidly dividing cells (Lymphocytes/Bone marrow) | तेजी से विभाजित होने वाली कोशिकाएं
    (D) Nerve cells
    ✅ Answer & Explanation
    Sahi jawab: C) Rapidly dividing cells (Lymphocytes/Bone marrow) | तेजी से विभाजित होने वाली कोशिकाएं
    Explanation: According to Bergonie-Tribondeau law, highly metabolic and rapidly dividing cells are most radiosensitive. [cite: 8, 103]
  10. The 'Direct Action' of radiation on cells involves damage to: / कोशिकाओं पर विकिरण की 'प्रत्यक्ष क्रिया' (Direct Action) में किसे नुकसान पहुँचता है?
    (A) DNA molecule | डीएनए (DNA) अणु
    (B) Water molecules
    (C) Cell wall only
    (D) Cytoplasm only
    ✅ Answer & Explanation
    Sahi jawab: A) DNA molecule | डीएनए (DNA) अणु
    Explanation: Direct action occurs when radiation directly hits and breaks the DNA strands. [cite: 8]
  11. The 'Indirect Action' of radiation involves the production of: / विकिरण की 'अप्रत्यक्ष क्रिया' (Indirect Action) में किसका उत्पादन शामिल है?
    (A) New cells
    (B) Vitamins
    (C) Free radicals (from water) | फ्री रेडिकल्स
    (D) Heat
    ✅ Answer & Explanation
    Sahi jawab: C) Free radicals (from water) | फ्री रेडिकल्स
    Explanation: Radiation ionizes water molecules in the cell, creating free radicals that subsequently damage DNA. [cite: 8, 167]
  12. A 'Stochastic' effect like Cancer usually has a: / कैंसर जैसा 'स्टोकेस्टिक' प्रभाव आमतौर पर कैसा होता है?
    (A) Long latency period (years) | लंबी लेटेंसी अवधि (वर्षों में)
    (B) Immediate onset
    (C) None
    (D) Short latency period
    ✅ Answer & Explanation
    Sahi jawab: A) Long latency period (years) | लंबी लेटेंसी अवधि (वर्षों में)
    Explanation: Cancer caused by radiation often takes many years to manifest after the initial exposure. [cite: 8]
  13. Which radiographic position is best for detecting a small 'Pleural Effusion'? / कम मात्रा में 'प्लुरल एफ्यूजन' (फेफड़ों में पानी) का पता लगाने के लिए कौन सी स्थिति सबसे अच्छी है?
    (A) PA Chest
    (B) Lateral Decubitus (affected side down) | लैटरल डिकुबिटस
    (C) Lordotic
    (D) Supine Chest
    ✅ Answer & Explanation
    Sahi jawab: B) Lateral Decubitus (affected side down) | लैटरल डिकुबिटस
    Explanation: Gravity causes the fluid to accumulate along the lower side, making even small amounts visible. [cite: 8]
  14. What is the main advantage of an 'Automatic Processor' over manual processing? / मैनुअल की तुलना में 'ऑटोमैटिक प्रोसेसर' का मुख्य लाभ क्या है?
    (A) None
    (B) Uses no water
    (C) Faster processing and consistency | तेज प्रोसेसिंग और निरंतरता
    (D) Cheaper chemicals
    ✅ Answer & Explanation
    Sahi jawab: C) Faster processing and consistency | तेज प्रोसेसिंग और निरंतरता
    Explanation: Automatic processors can develop, fix, and dry a film in 90 seconds with standardized results.
  15. What is 'Replenishment' in an automatic film processor? / ऑटोमैटिक फिल्म प्रोसेसर में 'रेप्लेनिशमेंट' (Replenishment) क्या है?
    (A) Cleaning the rollers
    (B) None
    (C) Changing the light
    (D) Adding fresh chemicals to maintain strength | रसायनों की पुनः पूर्ति
    ✅ Answer & Explanation
    Sahi jawab: D) Adding fresh chemicals to maintain strength | रसायनों की पुनः पूर्ति
    Explanation: As films are processed, chemicals get used up; replenishment pumps add fresh developer and fixer automatically.
  16. Which component of the automatic processor moves the film through the tanks? / ऑटोमैटिक प्रोसेसर का कौन सा घटक टैंकों के माध्यम से फिल्म को घुमाता है?
    (A) Heater
    (B) Laser
    (C) Water pump
    (D) Roller System | रोलर सिस्टम
    ✅ Answer & Explanation
    Sahi jawab: D) Roller System | रोलर सिस्टम
    Explanation: The transport system consists of rollers that move the film at a constant speed.
  17. In automatic processing, the 'Dryer Section' uses: / ऑटोमैटिक प्रोसेसिंग में, 'ड्रायर सेक्शन' किसका उपयोग करता है?
    (A) Heated high-velocity air | गर्म हवा
    (B) Cold water
    (C) Steam
    (D) Vacuum
    ✅ Answer & Explanation
    Sahi jawab: A) Heated high-velocity air | गर्म हवा
    Explanation: Hot air is blown over both sides of the film to remove all moisture before it exits.
  18. What happens if the 'Replenishment Rate' is too low? / यदि 'रेप्लेनिशमेंट दर' बहुत कम हो तो क्या होगा?
    (A) Fast drying
    (B) Darker films
    (C) Loss of contrast and thin (light) images | कंट्रास्ट की कमी और हल्की इमेज
    (D) None
    ✅ Answer & Explanation
    Sahi jawab: C) Loss of contrast and thin (light) images | कंट्रास्ट की कमी और हल्की इमेज
    Explanation: Exhausted chemicals cannot develop the film properly, leading to poor quality images.
  19. Why is the 'Developer' temperature kept higher in automatic processors than manual? / ऑटोमैटिक प्रोसेसर में डेवलपर का तापमान मैनुअल की तुलना में अधिक क्यों रखा जाता है?
    (A) None
    (B) To prevent static
    (C) To speed up the chemical reaction | रासायनिक प्रतिक्रिया को तेज करने के लिए
    (D) To save water
    ✅ Answer & Explanation
    Sahi jawab: C) To speed up the chemical reaction | रासायनिक प्रतिक्रिया को तेज करने के लिए
    Explanation: High temperature (approx. 35°C) allows for very rapid development of the latent image.
  20. What is the function of 'Hardener' in the automatic developer? / ऑटोमैटिक डेवलपर में 'हार्डनर' (Hardener) का क्या कार्य है?
    (A) To clean rollers
    (B) None
    (C) To prevent excessive swelling of emulsion | इमल्शन को अधिक फूलने से रोकना
    (D) To make film black
    ✅ Answer & Explanation
    Sahi jawab: C) To prevent excessive swelling of emulsion | इमल्शन को अधिक फूलने से रोकना
    Explanation: Hardeners (like Glutaraldehyde) prevent the film from getting stuck or damaged in the rollers.
  21. Which artifact is specifically caused by dirty rollers in an automatic processor? / ऑटोमैटिक प्रोसेसर में गंदे रोलर्स के कारण कौन सा आर्टिफैक्ट होता है?
    (A) Fogging
    (B) Half-moon marks
    (C) Static marks
    (D) Pi Lines (repeating marks) | पाई लाइन्स (Pi Lines)
    ✅ Answer & Explanation
    Sahi jawab: D) Pi Lines (repeating marks) | पाई लाइन्स (Pi Lines)
    Explanation: Pi lines appear at regular intervals corresponding to the circumference of the dirty roller.
  22. The 'Recirculation System' in a processor helps to: / प्रोसेसर में 'रीसर्कुलेशन सिस्टम' क्या मदद करता है?
    (A) Mix chemicals and maintain temperature | रसायनों को मिलाना और तापमान बनाए रखना
    (B) Save electricity
    (C) Dry the film
    (D) None
    ✅ Answer & Explanation
    Sahi jawab: A) Mix chemicals and maintain temperature | रसायनों को मिलाना और तापमान बनाए रखना
    Explanation: It keeps the chemicals agitated and ensures uniform temperature throughout the tank.
  23. What is the primary biological effect of ionizing radiation on human cells? / मानव कोशिकाओं पर आयनकारी विकिरण का प्राथमिक जैविक प्रभाव क्या है?
    (A) Improved vision
    (B) None
    (C) DNA Damage | डीएनए (DNA) क्षति
    (D) Instant growth
    ✅ Answer & Explanation
    Sahi jawab: C) DNA Damage | डीएनए (DNA) क्षति
    Explanation: Radiation can break DNA strands, leading to cell death or mutations (stochastic/deterministic effects).
  24. What causes 'Static Marks' (tree-like black streaks) on a radiographic film? / रेडियोग्राफिक फिल्म पर 'स्टैटिक मार्क्स' (पेड़ जैसी काली धारियां) का क्या कारण है?
    (A) High humidity
    (B) Light leak
    (C) Low humidity and friction | कम आर्द्रता और घर्षण
    (D) Dirty chemicals
    ✅ Answer & Explanation
    Sahi jawab: C) Low humidity and friction | कम आर्द्रता और घर्षण
    Explanation: Static electricity builds up in very dry environments, especially when films are pulled quickly from the box or cassette.
  25. A 'Crescent Mark' (half-moon shaped white/black mark) is caused by: / 'क्रिसेंट मार्क' (आधे चाँद के आकार का निशान) किसके कारण होता है?
    (A) Kinking or bending the film | फिल्म का मुड़ना या झुकना
    (B) Over-development
    (C) Old fixer
    (D) Light leak
    ✅ Answer & Explanation
    Sahi jawab: A) Kinking or bending the film | फिल्म का मुड़ना या झुकना
    Explanation: Bending the film sharply before or after exposure damages the emulsion, causing these marks.
  26. What is 'Radiographic Density'? / 'रेडियोग्राफिक डेंसिटी' (Radiographic Density) क्या है?
    (A) Difference in colors
    (B) Overall blackening of the film | फिल्म का कुल कालापन
    (C) Image sharpness
    (D) Weight of film
    ✅ Answer & Explanation
    Sahi jawab: B) Overall blackening of the film | फिल्म का कुल कालापन
    Explanation: Density refers to the degree of darkness or blackness on the processed radiograph.
  27. Which factor is the primary controller of 'Radiographic Contrast'? / 'रेडियोग्राफिक कंट्रास्ट' का प्राथमिक नियंत्रक कौन सा कारक है?
    (A) Exposure time
    (B) mA
    (C) Focal spot size
    (D) kVp | केवीप (kVp)
    ✅ Answer & Explanation
    Sahi jawab: D) kVp | केवीप (kVp)
    Explanation: kVp controls the energy of the beam; high kVp results in low contrast (more grays), low kVp results in high contrast.
  28. How does increasing the 'SID' (Source to Image Distance) affect image detail? / 'SID' बढ़ाने से इमेज डिटेल पर क्या प्रभाव पड़ता है?
    (A) Makes it blurry
    (B) Decreases detail
    (C) No effect
    (D) Increases detail (reduces penumbra) | डिटेल बढ़ती है
    ✅ Answer & Explanation
    Sahi jawab: D) Increases detail (reduces penumbra) | डिटेल बढ़ती है
    Explanation: A longer SID reduces geometric unsharpness (penumbra), leading to better recorded detail.
  29. What is the result of using a 'Large Focal Spot Size' (FSS)? / 'बड़े फोकल स्पॉट साइज' (FSS) के उपयोग का क्या परिणाम होता है?
    (A) Increased geometric blur (unsharpness) | ज्योमेट्रिक धुंधलापन
    (B) Better sharpness
    (C) Lower dose
    (D) Darker image
    ✅ Answer & Explanation
    Sahi jawab: A) Increased geometric blur (unsharpness) | ज्योमेट्रिक धुंधलापन
    Explanation: A smaller focal spot is always preferred for better image detail and sharpness.
  30. The 'OID' (Object to Image Distance) should be kept: / 'OID' (वस्तु से इमेज की दूरी) को कैसा रखा जाना चाहिए?
    (A) As large as possible
    (B) None
    (C) 10 feet
    (D) As small as possible | जितना संभव हो उतना कम
    ✅ Answer & Explanation
    Sahi jawab: D) As small as possible | जितना संभव हो उतना कम
    Explanation: Keeping the patient as close to the film as possible reduces magnification and blurring.
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