Objective General Science Online Free Test

Objective General Science Online Free Test
Free General Science Online Practice Test
1. What is the distinct human vision normally?
(a) 12-30 feet
(b) 1-2 metres
(c) 25-30 metres
(d) 50-75 cms
(e) 25-30 cms
Answer. (e)

2. Which of the following disease is caused by
Air pollution?
(a) Leukemia
(b) Bronchitis
(c) Rheumatism
(d) Goitre
(e) Rubeola
Answer. (b)

3. Which is not a vector borne disease?
(a) Malaria
(b) Sleeping sickness
(c) Ascariasis
(d) Rabies
(e) Dengue fever
Answer. (c)

4. Larva of mosquito is known as-
(a) lmago
(b) Maggot
(c) Caterpillar
(d) Wriggler
(e) Chrysalis
Answer. (d)

5. Which insect is not found in wild state?
(a) Silk moths
(b) Honey bees
(c) Cochineal insects
(d) Lac insects
(e) None of the above
Answer. (c)

6. Water from soil enters into root hairs owing to-
(a) Atmospheric pressure
(b) Capillarity
(c) Root pressure
(d) Osmotic pressure
(e) Turgor pressure
Answer. (d)

7. The age of a tree can be calculated by-
(a) Counting number of branches
(b) Measuring its girth
(c) Counting the number of annual rings
(d) Measuring its height
(e) Feeling its hardness
Answer. (c)

8. The genes are arranged on chromosome in
a-
(a) Random manner
(b) Spiral manner
(c) Linear manner
(d) Irregul manner
(e) None of the above manner
Answer. (c)

9. Red blood corpuscles are formed in the-
(a) Small intestine
(b) Bone marrow
(c) Liver
(d) Heart
(e) Kidneys
Answer. (b)

10. Trachoma is the disease of the-
(a) Skin
(b) Eyes
(C) Ear
(d) Lungs
(e) Liver
Answer. (b)

11. Which type of soil is the best for wheat
Crop?
(a) Loam
(b) Sandy loam
(c) Sandy
(d) Gravel
(e) Clay
Answer. (a)

12. The heart of a young man beats about-
(a) 50 times per minute
(b) 72 times per minute
(c) 9O times per minute
(d) 110 times per minute
(e) 120 times per minute
Answer. (b)

13. The total number of bones in the human
Body is-
(a) 206
(b) 260
(c) 306
(d) 360
(e) 417
Answer. (a)


14. Deficiency of vitamin E results in-
(a) Scurvy
(b) Loss of fertility
(c) Rickets
(d) Beri-Beri
(e) Xeropthalmia
Answer. (b)


15. Which of the following is anti-coagulant?
(a) Thromboplastin
(b) Sodium chloride
(c) Potassium chloride
(d) Fibrinogen
(e) Sodium oxalate
Answer. (e)

16. ‘Universal Donor’ belongs to blood group-
(a) O
(b) AB
(c) B
(d) A
(e) None of these
Answer. (a)


17. Bile is secreted by the-
(a) Kidney
(b) Liver
(c) Pancrease
(d) Spleen
(e) Walls of the stomach
Answer. (b)

18. Carbon becomes available to crop plants in
The form of-
(a) Amino acids
(b) Carbon dioxide
(c) Carbonates
(d) Element carbon
(e) Carbohydrates
Answer. (b)



19. Blood circulates from arteries to veins
Through microscopic vessels known as-
(a) Capillaries
(b) Corpuscles
(c) Cells
(d) Calories
(e) Tubes
Answer. (a)


20. Blood is composite system consisting of-
(a) Plasma and red blood cells
(b) Plasma, white blood cells and red blood
Cells
(c) Cells of bone marrow and spleen, and
Plasma
(d) Plasma and white blood cells
(e) Protoplasm and haemoglobin
Answer. (b)

Free Objective Questions Material Science

Free Objective Questions Material Science
Multiple Choice Questions On Material Science Free
Online objective Test Questions Materials Science
1. A mixture of cement, gravel, coarse sand and water is called
(a) mortar
(b) concrete
(c) slurry
(d) hardner
Ans. (b)

2. RCC is
(a) the concrete having an iron framework inside it as a support
(b) the crushed cement in which more gravel is added
(c) prepared by adding calcium chloride to the limestone and calcium silicate
(d) none of the above
Ans. (a)

3. The process of making soap by the hydrolysis of fats and oils with alkalis is called
(a) hydrolysis
(b) saponification
(c) esterification
(d) none of the above
Ans. (b)

4. The soap can be hardened by
(a) adding sodium carbonate or sodium silicate during its manufacture
(b) adding sodium chloride
(c) adding potassium hydroxide
(d) adding animal fat and coconut oil
Ans. (a)

5. Endoscope is made up of
(a) glass wool
(b) optical fibres
(c) optical glass
(d) lead crystal glass
Ans. (b)

6. The plastics which soften upon being heated but regains all its original properties on
cooling are known as
(a) thermoplastics
(b) thermosetting plastics
(c) thermoelastic
(d) cellulose
Ans. (a)

7. Which of the following is not a thermoplastic polymer?
(a) Nylon
(b) PVC
(c) Polythene
(d) Bakelite
Ans. (d)

8. Match the following:
I II
(A) Heat resistant 1. Used as insulating
Glass material in oven
(B) Glass wool 2. Useful as sun shield
(C) Laminated glass 3. Borosilicate glass
(D) Photochromatic 4, Used in bullet proof
glass screens
A B C D
(a) 2 4 1 3
(b) 3 1 4 3
(c) 3 1 4 2
(d) 3 2 1 4
Ans. (c)

9. Limestone on heating gives
(a) washing soda
(b) plaster of Paris
(e) quicklime
(d) slaked lime
Ans. (c)

10. Bleaching powder is
(a) CaO2C1
(b) CaOCl2
(c) CaC1O2
(d) CaC12 + O2
Ans. (b)

11. Baking powder contains Sodium Hydrogen Carbonate and
(a) tartaric acid
(b) sodium carbonate
(c) calcium chloride
(d) acetic acid
Ans. (a)

12. Plaster of Paris is obtained by heating
(a) gypsum
(b) limestone
(c) sodium carbonate
(d) calcium sulphate
Ans. (a)

14. The common name of sodium bicarbonate is
(a) lime
(b) baking powder
(c) baking soda
(d) washing soda
Ans. (b)

14. Soda Acid for extinguisher contains
(a) sodium carbonate and nitric acid
(b) sodium hydrogen carbonate and sulphuric acid
(c) sodium carbonate and carbonic acid
(d) sodium chloride and sulphuric acid
Ans. (b)

15. Efflorescence is shown by
(a) bleaching powder
(b) baking soda
(c) washing soda
(d) plaster of Paris
Ans. (c)

16. Slaked lime reacts with chlorine to give
(a) baking soda
(b) washing soda
(c) bleaching powder
(d) cement
Ans. (c)

17. The main constituent of cement is
(a) Si02
(b) CaO
(c) CaSO4
(d) Al203
Ans. (a)

18. Sodium Carbonate is prepared on large scale by
(a) Solvay’s process
(b) Beckmann’s plants
(c) Hesenclover plant
(d) adding water to lime
Ans. (a)

19. Name a compound which hardens on wetting with water.
(a) Calcium sulphate decahydrate
(b) Calcium sulphur hemihydrates
(c) Calcium sulphate
(d) Hydrated calcium sulphate
Ans. (b)

20. The real bleaching agent present in bleaching powder is
(a) chlorine
(b) oxygen
(c) CaO
(d) none of the above
Ans. (a)