General Science Questions (MCQs) for Competitive Examinations

General Science Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations. These questions are part of GKToday’s 35000+ MCQs Bank Course in GKToday Android App

1. How the Cast Iron is different from Wrought Iron?

  1. Cast iron have higher carbon content than wrought iron 
  2. Cast iron are more ductile compared to wrought iron
  3. Wrought iron is more stable, pure and stronger, compared to cast iron

Select the correct option from the codes given below:

[A] 3 Only
[B] 1 and 3 Only
[C] 2 and 3 Only
[D] 1,2 and 3

Show Answer

2. Both, haemoglobin and myoglobin require ____ for formation:
[A] Vitamin A
[B] Vitamin B12
[C] Iron
[D] Calcium

Show Answer

3. Which of the following diseases has been eradicated worldwide?

[A] Smallpox
[B] Plague
[C] Chickenpox
[D] Dracunculiasis

Show Answer

4. Protein part of enzyme is known as ____:
[A] Isoenzyme
[B] Holoenzyme
[C] Apoenzyme
[D] All of the above

Show Answer

5. What accumulates in the muscles after continuous strenuous physical exercise as a result of temporary anaerobic respiration that causes muscular fatigue?
[A] ATP
[B] Lactic acid
[C] Ethyl alcohol
[D] Carbon dioxide

Show Answer

6. If a healthy freshwater fish is placed in salt water, what will be the expected consequence?

[A] The fish becomes dehydrated and dies
[B] The fish becomes bloated and dies
[C] The fish suffers from fungal or bacterial disease and dies
[D] There is no observable effect on the fish provided there is sufficient food

Show Answer

7. Oxygenated blood is carried by _____:
[A] Hepatic portal vein
[B] Renal vein
[C] Pulmonary artery
[D] Pulmonary vein

Show Answer

8. The biological decomposition of organic substances in wastes under controlled conditions known as
____:
[A] Incineration
[B] Pyrolysis
[C] Composting
[D] Sanitary landfill

Show Answer

9. Night blindness results from the deficiency of ___:
[A] Vitamin-E
[B] Vitamin-A
[C] Vitamin-B2
[D] Glucose

Show Answer

10. The total number of living organisms, both plants and animals, in a given area is called ____:
[A] Buffers
[B] Biomass
[C] Batholith
[D] Barrage

Show Answer