Kerala PSC Village Extension Officer Examination 2014

General Science for preparing Kerala PSC Village Extension Officer [VEO] Examination 2014

• All of the following foods lack vitamin C, except: 

Answer: Milk

• Which of the following statements is not correct? 

Answer: Vegetable fats contain enough vitamin A and D

• All of the following statements are correct, except: 

Answer: Bile contains enzymes

• The vitamin concerned with blood clotting is: 

Answer: Vitamin K

• When there is a decrease in the concentration of oxygen in the blood, the rate of breathing 

Answer: Increases

• The skin is an excretory organ. Which of the following substances is not excretory material? 

Answer: Oil

• Camels have greater adaptability to long periods of drought in hot deserts than other animals. This is because: 

Answer: Its thick fur insulates its body against high external temperatures and reduces water loss.

• All the following facts about camels make them adapt to long periods of drought in hot deserts, except: 

Answer: Camels can drink as much as 1/3 of their body weight in ten minutes, which other mammals cannot.

• Babies should be always kept in a reasonably warm temperature whereas adults can with stand extreme cold. The reason for this is that? 

Answer: They have a large surface area to volume ratio; hence they lose much more heat than they produce

• A newly born normal child will thrive best if it is given milk of: 

Answer: Mother

• Excretory products of mammals are useful to plants. Which of the following is not a part of such secretions? 

Answer: Mineral salts

• A flaming splinter is thrust into a bottle of oxygen, a bottle of nitrogen, and a bottle of carbon dioxide. The flame will go out in: 

Answer: Nitrogen and carbon dioxide but not in oxygen

• The phases of the moon are partially the result of the 

Answer: Revolution of the moon about the earth

• The statutory warning "Cigarette smoking is injurious to health that appears on cigarette packet is based on the finding that 

Answer: Lung and oral cancer are more common among smokers than non-smokers

• Molasses are a 

Answer: By-product of sugar industry

• Which of the following processes does not increase the amount of carbon dioxide in the air? 

Answer: Photosynthesis

• Which of the following processes is unsuitable for softening water possessing temporary hardness? 

Answer: Adding calcium hydroxide

• A green leaf is partially covered and placed in the light for several days. If it is then boiled and tested for starch with iodine, what will be the result? 

Answer: Starch will be found only in the part of the leaf exposed to light

• All of the following glands in the human body are ductless glands, except: 

Answer: Lachrymal

• A body that is falling freely from a height (no air resistance) under the influence of gravity?

Answer: Increases its speed by about 32 ft/sec. during each second it falls

• A difference between a compound and a mixture is that a compound 

Answer: Always has the same composition whereas a mixture does not

• A person, who met with an accident, was partially paralysed and lacked a sense of feeling after treatment. Which apart of the nervous system was affected by the accident? 

Answer: The spinal cord seemed damaged

• On a cool and wet day a large quantity of dilute urine is passed out by most people. This is because: 

Answer: There is reduced loss of water through sweat

• Through which of the following media does light travel fastest? 

Answer: Vacuum

• Excessive intake of polished rice causes deficiency of: 

Answer: Vitamin B