Q. 1 If people sleep in closed rooms where charcoal fire is burning , they die due to

A) carbon dioxide

B) carbon monoxide

C) phosgene

D) methane

✔ carbon monoxide
View Explanation

Q. 2 The properties of several unknown solids were measured. Choose the correct option.

A) A, C, D

B) A, C

C) A, B, C, D

D) B, D

✔ A, B, C, D
View Explanation

Q. 3 Who Invented Microwave Oven ?

A) Levi Strauss

B) Lewis Edson Waterman

C) Sir Sandford Fleming

D) Percy LeBaron Spencer

✔ Percy LeBaron Spencer
View Explanation

Q. 4 When was Barb Wire patented

A) 1868

B) 1898

C) 1866

D) 1874

✔ 1874
View Explanation

Q. 5 Galton’s whistle is most commonly associated with

A) Horses

B) Shark

C) Dogs

D) Elephants

✔ Dogs
View Explanation

Q. 6 As per the news reports, MTNL recently launched its 3G service and became the first telecome operator to launch the same in India. What is the full form of 'G' in 3G

A) Generation

B) Global

C) Gravity

D) Growth

✔ Generation
View Explanation

Q. 7 What color is a giraffe's tongue?

A) Brown

B) Purple

C) Yellow

D) Black

✔ Purple
View Explanation

Q. 8 Dust particles in the air of large industrial cities are removed by

A) Electrophoresis

B) Sedimentation

C) Brownian movement

D) Tyndall effect

✔ Electrophoresis
View Explanation

Q. 9 Which of the following crops  would be preffered for sowing in order to enrich the soil with nitrogen?

A) Mustard

B) Wheat

C) Gram

D) Sunflower

✔ Gram
View Explanation

Q. 10 Desertification refers to

A) forest improving to tundras

B) forest degrading to dense taiga

C) forest degrading to sparse vegetation

D) forest improving to deserts

✔ forest improving to deserts
View Explanation

Q. 11 Organisms that feed on the excreta of other organisms are called

A) heterotrophs

B) autotrophs

C) saprotrophs

D) coprophagous

✔ coprophagous
View Explanation

Q. 12 Which of the following are elements of the colder principle?

A) Repair clothing as necessary

B) Keep clothing clean and dry

C) All the above

D) Wear clothing loose and layered

✔ All the above
View Explanation

Q. 13 When one enters a dark room after being in bright light one is not able to see anything clearly for a while because

A) the retina of the eye moves backward

B) the retina of the eye moves forward

C) the eye has no power of accommodation

D) the iris is unable to dilate the pupil immediately to be able to see things

✔ the iris is unable to dilate the pupil immediately to be able to see things
View Explanation

Q. 14 Which of the following is malleable?

A) Gold

B) Ice

C) Pottery

D) Stone

✔ Gold
View Explanation

Q. 15 Damage to hearing is caused by sounds which exceed

A) 80 decibles

B) 70 decibles

C) 120 decibles

D) 100 decibles

✔ 120 decibles
View Explanation

Q. 16 Iodex, a pain relief balm, has the smell of __________ .

A) Ethyl salicylate

B) Methyl salicylate

C) Butyl salicylate

D) Propyl salicylate

✔ Methyl salicylate
View Explanation

Q. 17 Which would provide the body with the most energy?

A) Forming bonds between two amino acids

B) Breaking a single carbon bond

C) Breaking the bonds in a monosaccharide

D) Creating bonds to form a carbohydrate

✔ Breaking the bonds in a monosaccharide
View Explanation

Q. 18 Who invented Gramophone?

A) Fahrenheit

B) Michael Faraday

C) Thomas Alva Edison

D) Alexander Graham Bell

✔ Alexander Graham Bell
View Explanation

Q. 19 Which of the following is not a fossil fuel?

A) Uranium

B) Natural Gas

C) Petroleum

D) Coal

✔ Uranium
View Explanation

Q. 20 An astronaut in outer space will observe sky as

A) Black

B) White

C) Red

D) Blue

✔ Black
View Explanation
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