Rrb Radiographer Past Paper PDF 2019

Post Name: Radiographer Date of the Exam: 21st July 2019 Exam Time: 09:00 AM to 10:30 AM 1 What is the frictional force exerted by the fluids also called? Alt 1 :Slag Alt 2 : Core Alt 3 : Effort Alt 4 : Drag Correct Alternative :- 4 2 Which conventions are followed for spherical...

Post Name: Radiographer Date of the Exam: 21st July 2019 Exam Time: 09:00 AM to 10:30 AM 1 What is the frictional force exerted by the fluids also called? Alt 1 :Slag Alt 2 : Core Alt 3 : Effort Alt 4 : Drag Correct Alternative :- 4 2 Which conventions are followed for spherical mirrors and lens? Alt 1 :New Huygens Sign Alt 2 : New Einstein sign Alt 3 : New Newton Sign Alt 4 : New Cartesian Sign Correct Alternative :- 4 3 What is called the time required for the satellite to complete one rotation? Alt 1 :Period of revolution Alt 2 : Period of motion Alt 3 : Period of force Alt 4 : Period of momentum Correct Alternative :- 1 4 What is the SI unit of electric field strength? Alt 1 :Newton / Coulomb Alt 2 : Henry/ Coulomb Alt 3 : Coulomb / Newton Alt 4 : Joules / Coulomb Correct Alternative :- 1 5 What is the symbol of the element Gallium? Alt 1 :Gm Alt 2 : G Alt 3 : Ga Alt 4 : Gl Correct Alternative :- 3 6 Which of the following is a biodegradable material? Alt 1 :Nuclear waste Alt 2 : Plastic bag Alt 3 : Aluminium Alt 4 : Wood Correct Alternative :- 4 7 Which of the following metals is in liquid state at room temperature? Alt 1 :Mercury Alt 2 : Sodium Alt 3 : Sulphur Alt 4 : Coal Correct Alternative :- 1 8 All green plants and bacteria which can synthesize their food by photosynthesis come under the category of Alt 1 :Intakers Alt 2 : Food givers Alt 3 : Decomposers Alt 4 : Producers Correct Alternative :- 4 9 Which of the following develops a tough coat and is gradually converted into a seed in plants? Alt 1 :Ovule Alt 2 : Embryo Alt 3 : Zygote Alt 4 : Pollen grains Correct Alternative :- 1 10 What nutrient deficiency causes goiter? Alt 1 :Carbohydrate Alt 2 : Calcium Alt 3 : Protein Alt 4 : Iodine Correct Alternative :- 4 11 In a certain code language, if BEACH is coded as GDCJE, then how is FLUID coded in that language? Alt 1 :HNWKF Alt 2 : NHWFK Alt 3 : GLXOI Alt 4 : UOLRW Correct Alternative :- 2 12 "Find the next number in the series. 7, 9, 13, 21, 37, ?" Alt 1 :69 Alt 2 : 57 Alt 3 : 55 Alt 4 : 63 Correct Alternative :- 1 13 "In this question, relationship between different elements is shown in the statement. This statement is followed by three conclusions. Assume the given statement to be true and choose the answer from the given options: Statement: W = O > R ≥ I > E < D Conclusions: i) E < R ii) I < O iii) W > I Alt 1 :Only ii) and iii) follow Alt 2 : Only i) and ii) follow Alt 3 : All follow Alt 4 : Only iii) follows Correct Alternative :- 3 14 A girl started to walk 2 km in North direction. She turned towards her right and walked 6 km and walked 3 km towards her left. Once again she took a left turn to walk 3 km before taking another left to walk 5 km. How far is she from the starting point? Alt 1 :3km Alt 2 : 4km Alt 3 : 5km Alt 4 : 7km Correct Alternative :- 1 15 On dividing a number by 483, we get 68 as remainder. On dividing the same number by 69, what will be the remainder? Alt 1 :68 Alt 2 : 58 Alt 3 : 48 Alt 4 : 38 Correct Alternative :- 1 16 Two bells ring at intervals of 59 seconds and 70 seconds. If they both ring at 10 O'clock in the morning together, after how many seconds will they ring together again? Alt 1 :4030 Alt 2 : 4130 Alt 3 : 4230 Alt 4 : 4330 Correct Alternative :- 2 17 The ratio of number of girls to boys in a school of 4500 students is 49:51. How many more girls should be admitted to make the ratio 1:1? Alt 1 :86 Alt 2 : 88 Alt 3 : 90 Alt 4 : 92 Correct Alternative :- 3 18 2450 boys and 1750 girls are examined in a test; 42% of the boys and 36% of the girls pass the test. The percentage of the total who failed is Alt 1 :63.5 Alt 2 : 62.5 Alt 3 : 61.5 Alt 4 : 60.5 Correct Alternative :- 4 19 A train passes a station platform in 65 seconds and a man standing on the platform in 49 seconds. If the speed of the train is 29 m/s, what is the length of the platform? (meter) Alt 1 :464 Alt 2 : 474 Alt 3 : 484 Alt 4 : 494 Correct Alternative :- 1 20 By selling a CPU for Rs.7935, a man makes a profit of 15%. At what price should he sell it to make a profit of 25%? (in Rs.) Alt 1 :8525 Alt 2 : 8625 Alt 3 : 8725 Alt 4 : 8825 Correct Alternative :- 2 21 Who won the Australian Open 2019 Men's single title? Alt 1 :Roger Federer Alt 2 : Novak Djokovic Alt 3 : Andy Murray Alt 4 : Rafael Nadal Correct Alternative :- 2 22 The Pong dam is built on which of the following rivers? Alt 1 :Sutlej Alt 2 : Beas Alt 3 : Chenab Alt 4 : Ravi Correct Alternative :- 2 23 In India, which of the following States has the highest number of National Parks? Alt 1 :Punjab Alt 2 : Tripura Alt 3 : Tamil Nadu Alt 4 : Madhya Pradesh Correct Alternative :- 4 24 The ancient Harappan city of Lothal is located in the state of Alt 1 :Rajasthan Alt 2 : Gujarat Alt 3 : Uttar Pradesh Alt 4 : Punjab Correct Alternative :- 2 25 Dandiya is the traditional folk dance of _________ Alt 1 :Uttar Pradesh Alt 2 : Karnataka Alt 3 : Gujarat Alt 4 : Sikkim Correct Alternative :- 3 26 How many times can a person be elected as the President of India? Alt 1 :One time only Alt 2 : Two times only Alt 3 : Five times only Alt 4 : Any number of times Correct Alternative :- 4 27 The real executive of the Indian government is _____________ Alt 1 :The President Alt 2 : The Prime Minister Alt 3 : The Vice President Alt 4 : The Speaker Correct Alternative :- 2 28 Which department issues PAN number? Alt 1 :Revenue Alt 2 : Financial affairs Alt 3 : Economic Affairs Alt 4 : Income Tax Correct Alternative :- 4 29 In domestic water sewage, which of the following things is not a part of ‘Dissolved materials’? Alt 1 :Sand Alt 2 : Nitrate Alt 3 : Phosphate Alt 4 : Calcium Correct Alternative :- 1 30 The term "Leg Before Wicket" is associated with which game/sport? Alt 1 :Volley Ball Alt 2 : Football Alt 3 : Cricket Alt 4 : Chess Correct Alternative :- 3 31 In mammography, the automatic exposure control (AEC) detectors are positioned Alt 1 :Behind the image receptor Alt 2 : Above the image receptor Alt 3 : Below the compression pad Alt 4 : In the X-ray tube Correct Alternative :- 1 32 Which view shows the coronoid process free of superimposition? Alt 1 :AP medial rotation Alt 2 : Lateral Alt 3 : Oblique Alt 4 : RAO Correct Alternative :- 1 33 Centering for calcaneal axial view is Alt 1 :Tallus Alt 2 : Hallux Alt 3 : Medial malleolus Alt 4 : 5th metatarsal tubercle Correct Alternative :- 4 34 Identify the centering for submentovertex view: Alt 1 :2.5 cms vertically above a point 2.5 cm along the baseline from the auditory meatus Alt 2 : Central ray is at right angles to OM plane and centered midway between the external auditory meatus Alt 3 : Central ray is angled cranially 30o to the OM plane Alt 4 : Central ray is angled caudally 30o to the OM plane Correct Alternative :- 2 35 Plane which is at right angles to the median sagittal plane and divides the head / body into anterior and posterior parts is: Alt 1 :Coronal plane Alt 2 : Oblique coronal plane Alt 3 : Axial plane Alt 4 : Oblique sagittal plane Correct Alternative :- 1 36 Rotation of the forearm so the palm faces down is called Alt 1 :Hyperflexion Alt 2 : Inversion Alt 3 : Supination Alt 4 : Pronation Correct Alternative :- 4 37 What position or projection is useful in diagnosing fractures of the acetabulum? Alt 1 :Judet view Alt 2 : Dunn view Alt 3 : Sesamoid view Alt 4 : Rosenberg view Correct Alternative :- 1 38 Which of the following is a contraindication to performing a small bowel follow-through study? Alt 1 :Oesophageal varices Alt 2 : Pheochromocytoma Alt 3 : Leukemia Alt 4 : Complete or high grade obstruction Correct Alternative :- 4 39 45o MLO view of the breast is also called Alt 1 :Rosenberg view Alt 2 : Lundgren's View Alt 3 : Judet's View Alt 4 : Waters view Correct Alternative :- 2 40 The nephrogram phase can be appreciated during Alt 1 :5 to 10 minutes Alt 2 : 10 to 40 seconds Alt 3 : 1 to 2 minutes Alt 4 : 5 to 10 seconds Correct Alternative :- 3 41 Which one of the following is NOT an important component of contrast agents used in diagnostic imaging? Alt 1 :Molybdenum Alt 2 : Iodine Alt 3 : Barium Alt 4 : Gadolinium Correct Alternative :- 1 42 Introduction of catheter via nostrils to study small bowel is called Alt 1 :Enteroclysis Alt 2 : Small bowel enema Alt 3 : Esophagogram Alt 4 : Large bowel enema Correct Alternative :- 1,2 This Question is dropped for evaluation due to “Multiple answer key”. 43 Why bowel preparation is necessary for G.I studies? Alt 1 :To have better visualization of bowel Alt 2 : To avoid air or bowel content mimicing pathologies Alt 3 : To avoid bowel content obscuring the anatomy Alt 4 : All of the above Correct Alternative :- 4 44 Spectral sensitivity refers to the color sensitivity of Alt 1 :Safelight filters Alt 2 : Intensifying screens Alt 3 : Cassettes Alt 4 : Radiographic films Correct Alternative :- 4 45 A densitometer is a device that measures Alt 1 :Speed of a film Alt 2 : Optical densities Alt 3 : Film latitude Alt 4 : Film gamma Correct Alternative :- 2 46 Which one of the phosphor materials is used in modern intensifying screens? Alt 1 :Rare earth element Alt 2 : Calcium tungstate Alt 3 : Silver halide Alt 4 : Sodium iodide Correct Alternative :- 1 47 The relative humidity of a dark room should be maintained at around Alt 1 :40 to 60% Alt 2 : 60 to 80% Alt 3 : 70 to 90% Alt 4 : 80% Correct Alternative :- 1 48 The developing solution Alt 1 :Is an acid Alt 2 : Is neutral Alt 3 : Removes un-exposed silver halides Alt 4 : Converts invisible latent images into visible form Correct Alternative :- 4 49 Buffers Alt 1 :Are restrainers Alt 2 : Are not used in the developing solution Alt 3 : Maintain the pH of a solution within close limits Alt 4 : Reduces the developing solution oxidation Correct Alternative :- 3 50 Dark rooms have Alt 1 :At least two doors exactly opposite Alt 2 : Green safe lights Alt 3 : Manual processing tools only Alt 4 : Dry and wet benches Correct Alternative :- 4 51 The photoelectric effect is directly proportional to Alt 1 :(Energy of the photons)3 Alt 2 : (Atomic number) 3 Alt 3 : (Density) 3 Alt 4 : (Angle of the interacting photons) 3 Correct Alternative :- 2 52 Bremsstrahlung radiation Alt 1 :Produces X-ray spectrum Alt 2 : Produces monoenergetic X-ray photons Alt 3 : Is nothing but the tube current Alt 4 : Is nothing but the thermionic emission Correct Alternative :- 1 53 Energy of an electromagnetic radiation is directly proportional to the Alt 1 :Period Alt 2 : Distance from the point source Alt 3 : Wavelength Alt 4 : Frequency Correct Alternative :- 4 54 Electromagnetic radiation Alt 1 :Travels in a straight line Alt 2 : Has mono nature Alt 3 : Does not follow the inverse square law Alt 4 : Has particle nature only Correct Alternative :- 1 55 The mutual electrostatic force between two point charges is defined by Alt 1 :Coulomb's law Alt 2 : Newton's law Alt 3 : Ohm's law Alt 4 : Gauss’s law Correct Alternative :- 1 56 Mass X Velocity (mv) is Alt 1 :Force Alt 2 : Momentum Alt 3 : Kinetic energy Alt 4 : Potential energy Correct Alternative :- 2 57 Which one of the following is not a mechanism of heat transfer? Alt 1 :Conduction Alt 2 : Radiation Alt 3 : Flux Alt 4 : Convection Correct Alternative :- 3 58 Tissue compression is used in Alt 1 :X-ray Mammography Alt 2 : Skull X-ray Alt 3 : Chest X-ray Alt 4 : Breast MRI Correct Alternative :- 1 59 Photocathodes convert Alt 1 :Electrons to light photons Alt 2 : Light photons to electrons Alt 3 : X-rays to light photons Alt 4 : Light photons to X-rays Correct Alternative :- 2 60 Bones of the wrist are called Alt 1 :Phalanges Alt 2 : Carpals Alt 3 : Metacarpals Alt 4 : Tarsals Correct Alternative :- 2 61 Connected system of hollow cavities in the skull are: Alt 1 :Process Alt 2 : Meatus Alt 3 : Fossa Alt 4 : Sinuses Correct Alternative :- 4 62 The gray matter on the surface of the brain is called Alt 1 :Cortex Alt 2 : Horns Alt 3 : Tract Alt 4 : Myelin Correct Alternative :- 1 63 Collection of nerve cell bodies found outside the CNS are known as Alt 1 :Ganglia Alt 2 : Microglia Alt 3 : Astrocytes Alt 4 : Oligodendroglia Correct Alternative :- 1 64 The small glands found on top of each kidney are known as Alt 1 :Thymus Alt 2 : Pituitary Alt 3 : Adrenal Alt 4 : Pineal Correct Alternative :- 3 65 How many layers of tissue surround each kidney? Alt 1 :Only one Alt 2 : Two Alt 3 : Three Alt 4 : Six Correct Alternative :- 3 66 Which one is divided into the head, body and tail? Alt 1 :Liver Alt 2 : Pancreas Alt 3 : Gallbladder Alt 4 : Intestine Correct Alternative :- 2 67 The functional units of the kidneys are Alt 1 :Nephrons Alt 2 : Corpuscle Alt 3 : Renal tubule Alt 4 : Renal plexus Correct Alternative :- 1 68 Minors can be treated (EXCEPT IN SPECIAL INSTANCES) Alt 1 :With the consent of the pediatrician and parents Alt 2 : Only with the consent of their parents Alt 3 : Without any consent Alt 4 : All of the above Correct Alternative :- 2 69 What is WHO? Alt 1 :World Health Organisation Alt 2 : Wide Holistic Outcome Alt 3 : World Hygiene Organisation Alt 4 : Welcome Host Organisation Correct Alternative :- 1 70 Which one of the following Acts was enacted with the intent to prohibit prenatal diagnostic techniques for determination of the sex of the fetus? Alt 1 :Medico-legal Act Alt 2 : PC-PNDT Act Alt 3 : MTP Act Alt 4 : Guardians and Wards Act Correct Alternative :- 2 71 Which is true of a placebo? Alt 1 :Is a substance that has no therapeutic effect Alt 2 : Should not be used to test new drugs Alt 3 : Is a kind of animal experiment Alt 4 : Is unethical Correct Alternative :- 1 72 Which modality is more sensitive in the detection of lacunar infarction and also helps in the triage of patients for thrombolysis? Alt 1 :MRI Alt 2 : CT Alt 3 : Ultrasound Alt 4 : Plain X-ray Correct Alternative :- 1 73 Which one of the following methods is used to reduce the patient x-ray dose? Alt 1 :Using more mAs Alt 2 : Decreasing the pitch in CT Alt 3 : Using small X-ray field sizes Alt 4 : Using a grid with a high grid ratio Correct Alternative :- 3 74 What is the full form of 'PET'? Alt 1 :Positron Emission Tomography Alt 2 : Positron Electron Tomography Alt 3 : Pulsed Emission Tool Alt 4 : Pulsed Electron Tool Correct Alternative :- 1 75 Which one of the following materials is used in Digital Radiography (DR)? Alt 1 :Barium fluorohalide Alt 2 : α-Selenium Alt 3 : Sodium iodide Alt 4 : Silver halide Correct Alternative :- 2 76 Which of the following is true for LUT? Alt 1 :Look Up Table Alt 2 : Light Utilizing Tube Alt 3 : a type of LASER Alt 4 : a device that converts digital images to analog images Correct Alternative :- 1 77 Third generation CT scanners use Alt 1 :30 detectors Alt 2 : Solid - state detectors Alt 3 : Fan X-ray beam Alt 4 : Translate - rotate mode scan Correct Alternative :- 3 78 Regarding ultrasound transducers Alt 1 :High frequency probes have thin crystals Alt 2 : The piezo-electric property is a very important property of ultrasound Alt 3 : B mode is not possible with phased array probes Alt 4 : 4D probes are not capable of real-time imaging Correct Alternative :- 1 79 Superconducting magnets Alt 1 :Provide MR images with high SNR Alt 2 : Use very high temperature environment to produce strong magnetic field Alt 3 : Produce images with less chemical shift artefact Alt 4 : Do not use cryogens Correct Alternative :- 1 80 Which one of the following MRI pulse sequences produces fluid suppressed images? Alt 1 :STIR Alt 2 : FLAIR Alt 3 : SPIR Alt 4 : Turbo Spin Echo Correct Alternative :- 2 81 Anatomy coils are used in MRI to Alt 1 :Increase scan speed Alt 2 : Decrease motion artefacts Alt 3 : Increase the SAR Alt 4 : Increase the SNR Correct Alternative :- 4 82 Half life of Tc-99m is Alt 1 :6 hours Alt 2 : 67 hours Alt 3 : Not a constant Alt 4 : 110 minutes Correct Alternative :- 1 83 Which one of the following devices is used for radiation survey? Alt 1 :G-M Type survey meter Alt 2 : Proportional counter Alt 3 : TLD Alt 4 : Gel dosimeters Correct Alternative :- 1 84 The minimum aluminium filter thickness required in general diagnostic X-ray tubes ABOVE 100kVp is Alt 1 :1 mm Alt 2 : 2 mm Alt 3 : 2.5 mm Alt 4 : 3.2 mm Correct Alternative :- 3 85 Radiation induced cataract is a Alt 1 :Stochastic effect Alt 2 : Deterministic effect Alt 3 : Direct ionization effect Alt 4 : Non-threshold effect Correct Alternative :- 2 86 Which one does not come under the ALARA principle? Alt 1 :Using small field sizes Alt 2 : Using grid for all cases Alt 3 : Using organ shields Alt 4 : Using optimum exposure factors Correct Alternative :- 2 87 Which one of the following statements is TRUE? Alt 1 :TLD badges can be worn at hip level Alt 2 : Two radiation workers may share a single TLD badge Alt 3 : TLD badges should be used to assess occupational exposures only Alt 4 : Used TLD cards should be replaced every month with new ones Correct Alternative :- 3 88 According to AERB specifications, the X-ray unit rooms should have at least Alt 1 :23 cm brick wall Alt 2 : 1mm lead wall Alt 3 : 17 cm concrete wall Alt 4 : 1mm lead lined door Correct Alternative :- 1 89 TLD badges use Alt 1 :No filters Alt 2 : CaSO4: Dy-Teflon discs Alt 3 : Lithium fluoride discs Alt 4 : Only one crystal disc Correct Alternative :- 2,3 This Question is dropped for evaluation due to “Multiple answer key”. 90 High voltage transformer is a Alt 1 :Step-down transformer Alt 2 : Step-up transformer Alt 3 : Autotransformer Alt 4 : Kind of rectifier Correct Alternative :- 2 91 A TLD card essentially consists of Alt 1 :Three TLD discs Alt 2 : Four TLD discs Alt 3 : Five TLD discs Alt 4 : Two scintillation detectors Correct Alternative :- 1 92 Somatic effects Alt 1 :Appear in the individual who is exposed to radiation Alt 2 : Occur in future descendants of the radiation-exposed individual Alt 3 : Are not a biological effect of radiation Alt 4 : Do not occur in diagnostic radiology Correct Alternative :- 1 93 TLD badge should be worn Alt 1 :At hip level Alt 2 : Above the lead apron Alt 3 : Below the lead apron Alt 4 : Without the cassette Correct Alternative :- 3 94 A filament transformer is a Alt 1 :Step-up transformer Alt 2 : Step-down transformer Alt 3 : Auto transformer Alt 4 : Power transformer Correct Alternative :- 2 95 Which one of the following is Ohm's law? Alt 1 :Current X Voltage = Energy Alt 2 : Voltage X Current = Resistance Alt 3 : (Current)2 X Resistance = Voltage Alt 4 : Voltage = Current X Resistance Correct Alternative :- 4 96 Grids are used to Alt 1 :Remove scattered radiations Alt 2 : Reduce the patient radiation dose Alt 3 : Collimate the primary X-ray beam Alt 4 : Focus the primary X-ray beam Correct Alternative :- 1 97 The most effective type of beam-restricting device is the Alt 1 :Cylinder Alt 2 : Collimators Alt 3 : Cone Alt 4 : Aperture Diaphragm Correct Alternative :- 2 98 Intra-oral X-ray imaging uses Alt 1 :Double coated films Alt 2 : Single coated films Alt 3 : Curved cassettes Alt 4 : High energy X-rays Correct Alternative :- 1 99 Stationary anodes are used in Alt 1 :Mobile X-ray tubes Alt 2 : Fixed unit X-ray tubes Alt 3 : CT scan unit X-ray tubes Alt 4 : Fluoroscopy unit X-ray tubes Correct Alternative :- 1 100 High frequency X-ray generators Alt 1 :Use large size transformers Alt 2 : Use small size transformers Alt 3 : Provide a low ripple voltage to X-ray tubes Alt 4 : Are not suitable for mobile X-ray units Correct Alternative :- 2,3 This Question is dropped for evaluation due to “Multiple answer key”.