Top 100 Disease MCQs for all Competitive Exams

Top 100 Disease MCQs for all Competitive Exams

1. A physician uses an endoscope to view the internal parts of a body organ. It is based on the principle of ____
(A) Refraction of light
(B) Reflection of light
(C) Total internal reflection of light
(D) Dispersion of light

Answer:-  (C) Total internal reflection of light

2. The first heart transplant was performed by___
(A) Dr. William Harvey
(B) Str. F.G. Hopkins
(C) Dr. Louis Pasteur
(D) Dr. Christian Bernard

Answer:- (D) Dr. Christian Bernard

3. What is India’s target to eradicate TB?
(A) 2025
(B) 2027
(C) 2029
(D) 2030

Answer:-(A) 2025

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4. Which of the following is also called a peacemaker?

(A) S.A. Nodes
(B) A.V. Nodes
(C) Bundle of His
(D) Chordate tensional

Answer:- (A) S.A. Nodes

5. Which one part of the donor’s eye is utilized in eye donation?
(A) Cornea
(B) Lens
(C) Retina
(D) The whole eye

Answer:- (A) Cornea

6. Which kind of mirror is used by a dentist?
(A) Cylindrical mirror
(B) Concave mirror
(C) Convex mirror
(D) Plane mirror

Answer:- (B) Concave mirror

7. Which of the following statements are correct?

1. The femur is the longest bone in the human body.
2. Cholera is a disease caused by bacteria.
3. ‘Athletic’s foot’ is a disease caused by a virus.

Select the correct answer from the codes given below.

Code

(A) 1, 2 and 3
(B) 1 and 3
(C) 1 and 2
(D) 2 and 3

Answer:- (C) 1 and 2

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8. The disease in which high levels of uric acid in the blood are characteristic is____
(A) Arthritis
(B) Gout
(C) Rheumatism
(D) Rheumatism heart

Answer:- (B) Gout

9. The Government of India has a plan to eliminate Malaria by _____
(A) 2025
(B) 2027
(C) 2029
(D) 2030

Answer:-  (D) 2030

10. Which one of the following human organs is responsible for the detoxification of alcohol?
(A) Liver
(B) Lung
(C) Heart
(D) Kidney

Answer:-  (A) Liver

11. A colour-blind person (man) gets married to a normal woman whose parents are not colour-blind. The possibility of being colour blind in their children is —
(A) 25%
(B) 50%
(C) 100%
(D) 0%

Answer:-  (B) 50%

12. The virus responsible for AIDS is an example of____
(A) Adenovirus
(B) Mosaic virus
(C) T-even virus
(D) Retrovirus

Answer:-  (D) Retrovirus

13. Sleeping sickness happens due to____
(A) Deficiency of Vitamin A
(B) Deficiency of calcium in the body
(C) Rising of blood pressure
(D) Unicellular animal named Trypanosoma

Answer:-  (D) Unicellular animal named Trypanosoma

14. . Which of the following is a carrier of parasite Plasmodium?
(A) Mosquito
(B) Fly
(C) Lice
(D) All of the above

Answer:-  (A) Mosquito

15. Dengue is a fever caused and transmitted to another human by_____
(A) Virus and female Aedes mosquito
(B) Bacteria and female Culex mosquito
(C) Fungus and female Aedes mosquito
(D) Protozoan and female Anopheles mosquito

Answer:-  (A) Virus and female Aedes mosquito

16.  Which of the following elements is responsible for Minamata disease?

(A) Boron
(B) Nickel
(C) Arsenic
(D) Mercury

Answer:-  (D) Mercury

17. How does the polio virus enter the body?
(A) Dog bite
(B) Mosquito bite
(C) Contaminated food and water
(D) Saliva

Answer:-  (C) Contaminated food and water

18. Which of the following is essential to regulate the heartbeat?
(A) Sodium
(B) Sulphur
(C) Potassium
(D) Iron

Answer:-  (C) Potassium

19. Which one among these is related to the deficiency of potassium?
(A) Damage of kidney, muscle paralysis
(B) Low blood pressure
(C) Anaemia
(D) Joint pain and blurry vision

Answer:-  (A) Damage of kidney, muscle paralysis

20. The ‘blue baby’ pollution disease is due to the excessive presence of which of the following in drinking water?
(A) Fluoride
(B) Chloride
(C) Nitrate
(D) Arsenic

Answer:-  (C) Nitrate

21. Arthritis is caused by the deposition of which of the following in the body’s joints?
(A) Urea
(B) Uric acid
(C) Albumin
(D) Cholesterol

Answer:-  (B) Uric acid

22. A person with vision defect ‘Myopia’ can see ____
(A) Nearby objects clearly
(B) Distant objects clearly
(C) Nearby as well as distant objects clearly
(D) Neither nearby nor distant objects clearly

Answer:-  (A) Nearby objects clearly

23. Which lens is used to correct myopia or short-sightedness?
(A) Use of convex lens
(B) Use of concave lens
(C) Use of plain concave lens
(D) Use of plain convex lens

Answer:-  (B) Use of concave lens

24. A specific test for detection of tuberculosis is_____
(A) Robert’s Test
(B) Widal’s Test
(C) Kahn’s Test
(D) Montoux Test

Answer:-  (D) Montoux Test

25. Salk’s vaccine is connected with which one of the following diseases?
(A) Smallpox
(B) Tetanus
(C) T.B.
(D) Polio

Answer:-  (D) Polio

26. Hydrophobia is caused by____
(A) Bacteria
(B) Fungus
(C) Virus
(D) Protozoan

Answer:-  (C) Virus

27. Shortage of which element causes goitre disease?
(A) Nitrogen
(B) Calcium
(C) Iodine
(D) Phosphorus

Answer:-  (C) Iodine

28. MRI is a diagnostic tool, which means___
(A) Magnetic Resonance Index
(B) Magnetic Resolution Information
(C) Magnetic Resonance Imaging
(D) All of the above

Answer:-  (C) Magnetic Resonance Imaging

29. Which disease among these is spread by a parasite?
(A) Malaria
(B) Cholera
(C) Jaundice
(D) None of these

Answer:-  (A) Malaria

30. The disease hysteria is classed in______
(A) Married women
(B) Old women
(C) Young women
(D) Young men and women

Answer:-  (C) Young women

31. What is it called when a human disease breaks out across a large region of the world?
(A) Pandemic
(B) Epidemic
(C) Endemic
(D) Epizootic

Answer:-  (A) Pandemic

32.  In medical terminology ‘Golden Hour’ is related with_____
(A) Terminal stage of cancer
(B) Pregnancy is detected
(C) Heart Attack
(D) Actual Child Birth

Answer:-  (C) Heart Attack

33. Leukaemia is a type of cancer in which there is an abnormal increase in the number of _____
(A) Bone cells
(B) Platelets
(C) Red blood cells
(D) White blood cells

Answer:-  (D) White blood cells

34. Haemophilia is____
(A) Caused by bacteria
(B) Caused by virus
(C) Caused by pollutants
(D) A hereditary defect

Answer:-  (D) A hereditary defect

35. Haemophilia is a hereditary disease which affects as_____
(A) Lack of Hb
(B) Rheumatoid leant disease
(C) Lack in WBC
(D) Absence of blood clotting

Answer:-  (D) Absence of blood clotting

36. Which of the following is not a genetic disorder?
(A) Down syndrome
(B) Haemophilia
(C) Irritable Bowel Syndrome (IBS)
(D) Sickle Cell Anaemia

Answer:-  (C) Irritable Bowel Syndrome (IBS)

37. Which organ of the human body does the disease Alzheimer’s affect?
(A) The ear
(B) The brain
(C) The eye
(D) The stomach

Answer:-  (B) The brain

38. The vaccine for polio was first prepared by _____
(A) Paul Ehrlich
(B) Jones Salk
(C) Louis Pasteur
(D) Joseph Lister

Answer:-  (B) Jones Salk

39. ‘Athlete’s Foot’ is a disease caused by_____
(A) Bacteria
(B) Fungus
(C) Protozoan
(D) Nematode

Answer:-  (B) Fungus

40. Down syndrome is a genetic disorder, which is caused due to____
(A) Due to changes in the number of the chromosomes
(B) Due to changes in the structure of the chromosome
(C) Due to changes in the structure of D.N.A.
(D) Due to changes in the structure of R.N.A.

Answer:-  (A) Due to changes in the number of the chromosomes

41. Which one of the following is not correctly matched?
Pollutants   –  Diseasecaused
(A) Mercury – Minamata disease
(B) Cadmium – Itai-Itai disease
(C) Nitrate Ion – Blue baby syndrome
(D) Fluoride Ion – Indigestion

Answer:-  (D) Fluoride Ion – Indigestion

42. The disease caused by deficiency of protein in children is_____
(A) Marasmus
(B) Pellagra
(C) Beri-beri
(D) Rickets

Answer:-  (A) Marasmus

43. If the lens in the eye becomes opaque, the disease is called____
(A) Myopia
(B) Astigmatism
(C) Glaucoma
(D) Cataract

Answer:-  (D) Cataract

44. Sleep apnea is a serious sleep disorder, in which people____
(A) Walk during sleep without knowing what he or she is doing
(B) Sleep with eyelids half open
(C) Briefly and repeatedly stop breathing during sleep
(D) Make a loud snoring sound while asleep

Answer:-  (C) Briefly and repeatedly stop breathing during sleep

45. AIDS is the short form of which of the following diseases?
(A) Acquired Immune Deformity Syndrome
(B) Anticipated Immune Deficiency Syndrome
(C) Acquired Immune Deficiency Syndrome
(D) Abnormal Immune Deficiency Syndrome

Answer:-  (C) Acquired Immune Deficiency Syndrome

46. Of the following ELISA Test is performed to test _____
(A) Diabetes
(B) Tuberculosis
(C) AIDS
(D) Syphilis

Answer:-  (C) AIDS

46. Japanese encephalitis is caused by____
(A) Bacteria
(B) Virus
(C) Parasitic protozoan
(D) Fungus

Answer:-  (B) Virus

47. The disease caused due to deficiency of iron is known as____
(A) Colour blindness
(B) Night blindness
(C) Anaemia
(D) Tuberculosis

Answer:-  (C) Anaemia

48. Which one of the following pairs is incorrectly matched?
(A) Thiamine – Beri-beri
(B) Ascorbic acid – Scurvy
(C) Vitamin A – Colour blindness
Answer:-  (D) Vitamin K – Blood clotting

(C) Vitamin A – Colour blindness

49. Which of the following diseases is not due to water contamination?
(A) Typhoid
(B) Hepatitis-B
(C) Jaundice
(D) Cholera

Answer:-  (B) Hepatitis-B

50. Leprosy is caused by____
(A) Bacteria
(B) Virus
(C) Fungus
(D) Protozoa

Answer:-  (A) Bacteria

51. Thalassemia is a hereditary disease which affects____
(A) Blood
(B) Lungs
(C) Heart
(D) None of these

Answer:-  (A) Blood

52. Emphysema is a disease caused by environmental pollution in which the affected organ of the body is____
(A) Liver
(B) Kidney
(C) Lungs
(D) Brain

Answer:-  (C) Lungs

53. Which of the following are associated with diabetes mellitus, a common disease in adults?

1. Higher sugar level in the blood
2. Lower sugar level in the blood
3. Lower insulin level in the blood
4. Higher insulin level in the blood
Code
(A) 2 and 4
(B) 1 and 2
(C) 2 and 3
(D) 1 and 3

Answer:-  (D) 1 and 3

54. In which of the following departments of a hospital will ‘Cath lab’ be found? 
(A) Pathology
(B) Surgery
(C) Cardiology
Answer:-  (D) Nuclear Medicine

55. Consider the following diseases.
1. Diphtheria
2. Chickenpox
3. Smallpox
Which of the above disease has/ have been eradicated in India?
(A) Only 1 and 2
(B) Only 3
(C) 1, 2 and 3
(D) None of these

Answer:-  (B) Only 3

56. Which part of the body is affected by Bright’s disease?
(A) Kidney
(B) Spleen
(C) Heart
(D) Liver

Answer:-  (A) Kidney

57. BCG vaccine is given in ___

(A) Pneumonia
(B) Whooping cough
C) Tetanus
(D) T.B

Answer:-  (D) T.B

58. PCV vaccine is given in ___

(A) Pneumonia
(B) Whooping cough
C) Tetanus
(D) T.B

Answer:-  (A) Pneumonia

59. Which one of the following diseases cannot be controlled by vaccination?
(A) Diabetes
(B) Polio
(C) Whooping cough
(D) Smallpox

Answer:-  (A) Diabetes

60. Diabetes is caused due to malfunctioning of____
(A) Pancreas
(B) Liver
(C) Kidney
(D) Gall bladder

Answer:-  (A) Pancreas

61. Which of the following diseases can be transmitted from one person to another through tattooing?
1. Chikungunya
2. Hepatitis B
3. HIV-AIDS
Select the correct answer using the codes given below.
(A) Only 1
(B) 2 and 3
(C) 1 and 3
(D) All of these

Answer:-  (B) 2 and 3

62. Tooth decay is mostly caused by interaction in the mouth between bacteria and food particles of____
(A) Proteins
(B) Carbohydrates
(C) Fats
(D) Salads

Answer:-  (B) Carbohydrates

63. The reason of dental caries is____
(A) Viral infection
(B) Contaminated water
(C) Bacterial infection
(D) Hereditary reason

Answer:-  (C) Bacterial infection

64. Which one of the following is an antibiotic drug?
(A) Quinine
(B) Sulphaguanidine
(C) Chloramphenicol
(D) None of the above

Answer:-  (C) Chloramphenicol

65. Which one of the following is not a genetic disease?
(A) Night blindness
(B) Albinism
(C) Haemophilia
(D) Colour blindness

Answer:-  (A) Night blindness

66. Which one of the following diseases is caused by bacteria?
(A) Tuberculosis
(B) Influenza
(C) Polio
(D) Malaria

Answer:-  (A) Tuberculosis

67. The organ affected by malaria is____
(A) Heart
(B) Lungs
(C) Kidney
(D) Spleen

Answer:-  (D) Spleen

68. Which of these decreases in the human body due to dengue fever?
(A) Platelets
(B) Hb
(C) Sugar
(D) Water

Answer:-  (A) Platelets

69. Which one of the following disease is not transmitted by tiger mosquitoes?
(A) Yellow fever
(B) Dengue
(C) Chikungunya
(D) Japanese Encephalitis

Answer:-  (D) Japanese Encephalitis

70. What is the disease caused by membrane swelling over the spinal cord and brain?

(A) Leukaemia
(B) Paralysis
(C) Sclerosis
(D) Meningitis

Answer:-  (D) Meningitis

71. What type of disease is ‘SILICOSIS’?

(A) Kidney disease
(B) Liver disease
(C) Lung disease
(D) Neurological disorder

Answer:-  (C) Lung disease

72. Iodised salt contains____
(A) Free iodine
(B) Calcium iodide
(C) Magnesium iodide
(D) Potassium iodide

Answer:-  (D) Potassium iodide

73. A man, who does not know when to stop eating, is suffering from____
(A) Bulimia
(B) Diabetes
(C) Anoerexia nervosa
(D) Hyperacidity

Answer:-  (A) Bulimia

74. BMD test is held for diagnosis of____
(A) Dengue
(B) Malaria
(C) Osteoporosis
(D) AIDS

Answer:-  (C) Osteoporosis

75. What is the full form of the BMD test?
(A) Bone Marrow Density
(B) Bone Mineral Density
(C) Bone Marrow Deficiency
(D) Bone Marrow Differentiation

Answer:-  (B) Bone Mineral Density

76. Food poisoning is due to_____
(A) E. coli
(B) Salmonella bacilli
(C) Pseudomonas
(D) Candida

Answer:-  (B) Salmonella bacilli

77. Itai-Itai disease is caused by chronic poisoning of ___
(A) Mercury
(B) Nickel
(C) Cadmium
(D) Lead

Answer:-  (C) Cadmium

78. Phenylketonuria is an innate error in metabolism, which reference about _____
(A) Overproduction of hormones
(B) Research of endocrine glands
(C) Lack (genetic) of enzymes
(D) Composition

Answer:-  (C) Lack (genetic) of enzymes

79. Cholesterol is ____
(A) An insecticide
(B) A vitamin
(C) A steroid
(D) An enzyme

Answer:-  (C) A steroid

80. Generally, cholesterol levels are related with____
(A) Arteries become hardened
(B) Veins becomes hardened
(C) In the kidney becomes stone
(D) Liver cirrhosis

Answer:-  (A) Arteries becomes hardened

81. Trans fat is generally considered to be bad for human health because it lowers the level of____
(A) HDL
(B) LDL
(C) Triglycerides
(D) Insulin

Answer:-  (A) HDL

82. Which date is known as ‘Diabetes Day’?
(A) 14th February
(B) 14th May
(C) 14th September
(D) 14th November

Answer:-  (D) 14th November

83. The yellow colour of human urine is due to a pigment called_____
(A) Cytochrome
(B) Urochrome
(C) Haemochrome
(D) Phenolichrome

Answer:-  (B) Urochrome

84.  What is the role of anti-oxidants in the human system?
(A) They promote vitamin synthesis
(B) They prevent excessive oxidation of carbohydrates, protein and fat
(C) They protect cells against the effects of free radicals
(D) They activate certain genes which delay the ageing process

Answer:-  (C) They protect cells against the effects of free radicals

85. When a doctor tells a person that he/she has been affected with tetraplegia, it means that he/she is suffering from paralysis of____
(A) Right hand only
(B) Left hand only
(C) His both legs only
(D) Both hands and both legs

Answer:-  (D) Both hands and both legs

86. Which statement about aspirin is not true? 
(A) It is a neurologically active drug
(B) Aspirin belongs to narcotic analgesics
(C) It is effective in relieving pain
(D) It has anti-blood clotting action

Answer:-  (B) Aspirin belongs to narcotic analgesics

87. Typhoid and cholera are typical examples of_____
(A) Infectious diseases
(B) Airborne diseases
(C) Waterborne disease
(D) None of the above

Answer:-  (C) Waterborne disease

88. Pneumoconiosis affects the workers who work mainly in ____
(A) Tanneries
(B) Coal mining industry
(C) Distilleries
(D) Glass Industry

Answer:-  (B) Coal mining industry

89. Who is the father of ‘Immunology’?
(A) Robert Koch
(B) Louis Pasteur
(C) Edward Jenner
(D) Landsteiner 

Answer:-  (C) Edward Jenner

90. Which one of the following diseases is caused by Fungi?
(A) Allergy
(B) Colour blindness
(C) AIDS
(D) Baldness

Answer:-  (D) Baldness

91. Oral submucous fibrosis is a disease caused by _____
(A) Drinking Liquor
(B) Smoking Tobacco
(C) Consuming Gutka of Tobacco
(D) Consuming Red Meat

Answer:-  (C) Consuming Gutka of Tobacco

92. Astigmatism is a disease of the___

(A) Ears
(B) Eyes
(C) Nose
(D) Throat

Answer:-  (B) Eyes

93. The Defence Research Development Organisation (DRDO) has developed a drug named, ‘Lukoskin’. It is being used in the treatment of ……
(A) Leucoderma
(B) Leukorrhea
(C) Leukaemia
(D) Lung cancer

Answer:-  (A) Leucoderma

94. Which one of the following is not correctly matched? 
(A) Autoimmune disease – Rheumatoid arthritis
(B) Genetic disease – Tuberculosis
(C) Scabies – Mite
(D) Mental disease – Schizophrenia

Answer:-  (B) Genetic disease – Tuberculosis

95. COVID-19 is caused by which virus?

(A) SARS-CoV
(B) MERS-CoV
(C) SARS-CoV-2
(D) H1N1

Answer:   (C) SARS-CoV-2

96. What is the full form of COVID-19?

(A) Coronavirus Virus Disease 2019
(B) Coronavirus Disease 2019
(C) Corona Viral Disease 2019
(D) Coronavirus Derived Disease 2019

Answer:  (B) Coronavirus Disease 2019

97. D.P.T. vaccine is given to protect from____
(A) Tetanus, Polio, Plague
(B) T.B., Polio, Diphtheria
(C) Diphtheria, Whooping cough, Tetanus
(D) Diphtheria, Polio, Leprosy

Answer:-  (C) Diphtheria, Whooping cough, Tetanus

98. The Triple Antigen DPT is given to children to prevent___
(A) Diphtheria, Polio, Smallpox
(B) Polio, Diphtheria, Tetanus
(C) Smallpox, Pertussis, Tetanus
(D) Diphtheria, Pertussis, Tetanus

Answer:-  (D) Diphtheria, Pertussis, Tetanus

99. Beta-blocker is a medicine to save from _____
(A) Heart attack
(B) Enlargement of prostate gland
(C) Chronic diabetes
(D) None of the above

Answer:-  (A) Heart attack

100. Keeping pigs away from human settlements helps in the eradication of ______
(A) Malaria
(B) Japanese encephalitis
(C) Elephantiasis
(D) Polio

Answer:-  (B) Japanese encephalitis