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Objective Questions

Latest HPRCA Operation Theatre Assistant Exam Question (Objective Questions), MCQ in English

Subjects : Concerned Subject, General Knowledge, Everyday Science, Logical Reasoning, Social Science, General English & General Hindi

Question Bank HPRCA Operation Theatre Assistant Exam - English
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Concerned Subject

Question 1Single Answer
Which type of epiphysis develops primarily for the attachment of tendons rather than for weight transmission?
  1. A
    Pressure epiphysis
  2. B
    Traction epiphysis
  3. C
    Atavistic epiphysis
  4. D
    Aberrant epiphysis
Question 2Single Answer
Which bone contains the cribriform plate through which olfactory nerve filaments pass?
  1. A
    Sphenoid
  2. B
    Ethmoid
  3. C
    Frontal
  4. D
    Temporal
Question 3Single Answer
Which ligament chiefly prevents hyperextension of the vertebral column?
  1. A
    Anterior longitudinal ligament
  2. B
    Ligamentum flavum
  3. C
    Interspinous ligament
  4. D
    Posterior longitudinal ligament
Question 4Single Answer
Which structure forms the major weight-bearing part of a typical vertebra?
  1. A
    Lamina
  2. B
    Spinous process
  3. C
    Transverse process
  4. D
    Vertebral body
Question 5Single Answer
Which muscle is the principal initiator of shoulder abduction during the first 15 degrees?
  1. A
    Deltoid
  2. B
    Supraspinatus
  3. C
    Infraspinatus
  4. D
    Teres minor
Question 6Single Answer
Which nerve is most vulnerable in a fracture of the surgical neck of the humerus?
  1. A
    Axillary nerve
  2. B
    Median nerve
  3. C
    Radial nerve
  4. D
    Musculocutaneous nerve
Question 7Single Answer
Which carpal bone is most commonly fractured after a fall on an outstretched hand?
  1. A
    Lunate
  2. B
    Scaphoid
  3. C
    Triquetrum
  4. D
    Pisiform
Question 8Single Answer
Which structure passes through the carpal tunnel?
  1. A
    Median nerve
  2. B
    Radial artery
  3. C
    Flexor carpi radialis tendon in the main tunnel
  4. D
    Ulnar nerve
Question 9Single Answer
Which muscle is supplied by the obturator nerve?
  1. A
    Sartorius
  2. B
    Gluteus medius
  3. C
    Adductor longus
  4. D
    Biceps femoris
Question 10Single Answer
Which ligament is most important in preventing anterior displacement of the tibia relative to the femur?
  1. A
    Posterior cruciate ligament
  2. B
    Tibial collateral ligament
  3. C
    Fibular collateral ligament
  4. D
    Anterior cruciate ligament
Question 11Single Answer
Which meniscus of the knee is more frequently injured because of its firm attachment to the tibial collateral ligament?
  1. A
    Lateral meniscus
  2. B
    Medial meniscus
  3. C
    Posterior meniscus
  4. D
    Discoid meniscus
Question 12Single Answer
Which nerve is commonly injured at the neck of the fibula?
  1. A
    Saphenous nerve
  2. B
    Tibial nerve
  3. C
    Sural nerve
  4. D
    Common peroneal nerve
Question 13Single Answer
Which muscle is the strongest plantar flexor of the ankle?
  1. A
    Soleus
  2. B
    Gastrocnemius
  3. C
    Tibialis posterior
  4. D
    Flexor hallucis longus
Question 14Single Answer
Which structure is located within the cavernous sinus?
  1. A
    Internal carotid artery
  2. B
    Optic nerve
  3. C
    Facial nerve
  4. D
    Greater petrosal nerve
Question 15Single Answer
Which cranial nerve carries parasympathetic fibres to the parotid gland?
  1. A
    Facial nerve
  2. B
    Vagus nerve
  3. C
    Glossopharyngeal nerve
  4. D
    Hypoglossal nerve
Question 16Single Answer
Which nerve supplies the diaphragm motorically?
  1. A
    Vagus nerve
  2. B
    Intercostal nerve
  3. C
    Phrenic nerve
  4. D
    Accessory nerve
Question 17Single Answer
At which vertebral level does the trachea normally bifurcate in an adult?
  1. A
    T1–T2
  2. B
    T4–T5
  3. C
    T7–T8
  4. D
    T10–T11
Question 18Single Answer
Which bronchus is more likely to receive an aspirated foreign body in an adult?
  1. A
    Left main bronchus
  2. B
    Right main bronchus
  3. C
    Left upper lobar bronchus
  4. D
    Right middle lobar bronchus
Question 19Single Answer
Which pulmonary cells produce surfactant?
  1. A
    Type I pneumocytes
  2. B
    Alveolar macrophages
  3. C
    Type II pneumocytes
  4. D
    Clara cells
Question 20Single Answer
Which factor most directly decreases pulmonary compliance?
  1. A
    Increased surfactant secretion
  2. B
    Decreased elastic tissue
  3. C
    Increased lung volume at rest
  4. D
    Pulmonary fibrosis
Question 21Single Answer
Which lung volume cannot be measured directly by simple spirometry?
  1. A
    Expiratory reserve volume
  2. B
    Tidal volume
  3. C
    Inspiratory reserve volume
  4. D
    Residual volume
Question 22Single Answer
Which value is normally reduced in obstructive airway disease?
  1. A
    FEV1/FVC ratio
  2. B
    Residual volume
  3. C
    Functional residual capacity
  4. D
    Total lung capacity
Question 23Single Answer
Which physiological mechanism is the principal stimulus for breathing in healthy adults?
  1. A
    Decreased arterial oxygen tension
  2. B
    Increased arterial nitrogen tension
  3. C
    Decreased plasma bicarbonate alone
  4. D
    Increased arterial carbon dioxide tension
Question 24Single Answer
Which form carries the largest proportion of carbon dioxide in blood?
  1. A
    Dissolved carbon dioxide
  2. B
    Carbaminohaemoglobin
  3. C
    Bicarbonate ions
  4. D
    Carbonic acid
Question 25Single Answer
Which shift of the oxyhaemoglobin dissociation curve occurs with increased temperature?
  1. A
    Biphasic shift
  2. B
    Leftward shift
  3. C
    No shift
  4. D
    Rightward shift
Question 26Single Answer
Which cardiovascular structure normally acts as the primary pacemaker?
  1. A
    Atrioventricular node
  2. B
    Sinoatrial node
  3. C
    Bundle of His
  4. D
    Purkinje fibres
Question 27Single Answer
Which phase of the cardiac cycle begins immediately after closure of the mitral and tricuspid valves?
  1. A
    Rapid ventricular filling
  2. B
    Isovolumetric contraction
  3. C
    Reduced ejection
  4. D
    Isovolumetric relaxation
Question 28Single Answer
Which heart sound is produced mainly by closure of the aortic and pulmonary valves?
  1. A
    First heart sound
  2. B
    Third heart sound
  3. C
    Fourth heart sound
  4. D
    Second heart sound
Question 29Single Answer
Which coronary artery most commonly supplies the sinoatrial node?
  1. A
    Right coronary artery
  2. B
    Left anterior descending artery
  3. C
    Circumflex artery exclusively
  4. D
    Posterior interventricular artery
Question 30Single Answer
Which variable is calculated by multiplying heart rate by stroke volume?
  1. A
    Ejection fraction
  2. B
    Systemic vascular resistance
  3. C
    Pulse pressure
  4. D
    Cardiac output
Question 31Single Answer
Which factor increases venous return most effectively during spontaneous inspiration?
  1. A
    Decreased intrathoracic pressure
  2. B
    Reduced abdominal pressure
  3. C
    Increased intrathoracic pressure
  4. D
    Closure of venous valves
Question 32Single Answer
Which receptor chiefly mediates reflex tachycardia when arterial pressure falls?
  1. A
    Chemoreceptors in the carotid body
  2. B
    Baroreceptors in the carotid sinus
  3. C
    Pain receptors in the myocardium
  4. D
    Stretch receptors in the atria
Question 33Single Answer
Which blood vessel has the greatest total cross-sectional area in the circulation?
  1. A
    Aorta
  2. B
    Capillaries
  3. C
    Arterioles
  4. D
    Venae cavae
Question 34Single Answer
Which component of blood contributes most to plasma oncotic pressure?
  1. A
    Fibrinogen
  2. B
    Haemoglobin
  3. C
    Globulins
  4. D
    Albumin
Question 35Single Answer
Which coagulation factor is not synthesized in the liver?
  1. A
    Factor II
  2. B
    Factor VIII
  3. C
    Factor VII
  4. D
    Factor IX
Question 36Single Answer
Which vitamin is required for hepatic synthesis of factors II, VII, IX and X?
  1. A
    Vitamin A
  2. B
    Vitamin C
  3. C
    Vitamin D
  4. D
    Vitamin K
Question 37Single Answer
Which part of the nervous system contains the primary respiratory rhythm-generating centres?
  1. A
    Basal ganglia
  2. B
    Cerebellum
  3. C
    Hypothalamus
  4. D
    Medulla oblongata
Question 38Single Answer
Which brain structure is principally responsible for coordination of posture and movement?
  1. A
    Cerebellum
  2. B
    Thalamus
  3. C
    Medulla
  4. D
    Amygdala
Question 39Single Answer
Which tract carries pain and temperature sensations from the body?
  1. A
    Dorsal column tract
  2. B
    Corticospinal tract
  3. C
    Spinocerebellar tract
  4. D
    Spinothalamic tract
Question 40Single Answer
Which neurotransmitter is released at the neuromuscular junction?
  1. A
    Dopamine
  2. B
    Noradrenaline
  3. C
    Acetylcholine
  4. D
    Glycine
Question 41Single Answer
Which ion is primarily responsible for the rapid depolarization phase of a neuronal action potential?
  1. A
    Sodium
  2. B
    Potassium
  3. C
    Calcium
  4. D
    Chloride
Question 42Single Answer
Which glial cells form myelin in the central nervous system?
  1. A
    Schwann cells
  2. B
    Microglia
  3. C
    Astrocytes
  4. D
    Oligodendrocytes
Question 43Single Answer
Which cranial nerve provides motor innervation to most muscles of the tongue?
  1. A
    Trigeminal nerve
  2. B
    Glossopharyngeal nerve
  3. C
    Hypoglossal nerve
  4. D
    Facial nerve
Question 44Single Answer
Which autonomic response is caused by sympathetic stimulation?
  1. A
    Increased gastrointestinal motility
  2. B
    Increased heart rate
  3. C
    Bronchoconstriction
  4. D
    Pupillary constriction
Question 45Single Answer
Which part of the nephron is the main site of glucose reabsorption?
  1. A
    Loop of Henle
  2. B
    Proximal convoluted tubule
  3. C
    Distal convoluted tubule
  4. D
    Collecting duct
Question 46Single Answer
Which hormone directly increases water permeability of the collecting ducts?
  1. A
    Antidiuretic hormone
  2. B
    Aldosterone
  3. C
    Renin
  4. D
    Atrial natriuretic peptide
Question 47Single Answer
Which part of the nephron is impermeable to water but actively transports sodium and chloride?
  1. A
    Thin descending limb
  2. B
    Thick ascending limb
  3. C
    Proximal tubule
  4. D
    Cortical collecting duct
Question 48Single Answer
Which substance is most suitable for measuring glomerular filtration rate experimentally?
  1. A
    Creatinine kinase
  2. B
    Para-aminohippurate
  3. C
    Urea
  4. D
    Inulin
Question 49Single Answer
Which cells secrete renin?
  1. A
    Mesangial cells
  2. B
    Podocytes
  3. C
    Juxtaglomerular cells
  4. D
    Principal cells
Question 50Single Answer
Which renal mechanism contributes most rapidly to correction of respiratory acidosis?
  1. A
    Increased bicarbonate reabsorption
  2. B
    Reduced ammonium excretion
  3. C
    Increased bicarbonate excretion
  4. D
    Reduced hydrogen ion secretion
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