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1. Kmph is the unit to measure

A

speed

B

acceleration

C

momentum

D

mass

2. Which of the following substances is used in cold countries to melt ice accumulated on the roads during winter?

A

salt

B

urea

C

sand

D

oil

3. In human, there are 13 vitamins which re essential for healthy living. Bleeding of gums and delayed healing of wounds is a deficiency of which of the following Vitamins?

A

Vitamin A

B

Vitamin B

C

Vitamin C

D

Vitamin D

4. Earthing wire is used in AC power circuit wring for protective grounding. Which colour insulation is done over it as per BIS code?

A

Green and Yellow

B

Blue and Brown

C

Black and Red

D

White and Gray

5. Chandan wants to design a solar furnace that will focus sunlight at one spot to boil water. Which of the following should Chandan use to collect large amount of solar enery?

A

Concave Mirror

B

Convex Mirror

C

Plane Mirror

D

Biconvex lenses

6. Vector borne diseases account for more than 17% of all infections diseases, causing more than 700000 deaths annually. Which of the following disease is
NOT vector borne?

A

Dengue

B

Chikungunya

C

Filariasis

D

Cholera

7. An amazing fact about firefighter`s uniform is that it can withstand up to 2200 degree F and protects a person from concentrated acids and alkali absorption. Hence it is fires. Which one of the following gases is used to extinguish fire?

A

Hydrogen

B

Butane

C

Methane

D

Carbon Dioxide

8. Have you ever wondered, trucks carrying heavy loads have more than four tyres! This is becuase more tyres increase the area of contact with the road and this results in reduced pressure on the tyres. Pressure plays an important role in our daily life. Which one of the following is NOT a unit of pressure?

A

Pascal (Pa)

B

Bar (b)

C

Torr (mmHg)

D

Newton (N)

9. Elements are generally available in the earth`s crust. Which of the following is a man-made element that is not available naturally in the earth`s crust?

A

Uranium

B

Thorium

C

Nobelium

D

Moylbednum

10. A lake is a type of

A

lotic ecosystem

B

lentic ecosystem

C

Marine ecosystem

D

Terrestrial ecosystem

11. Which of the following substances can exist as solid, liquid and gas?

A

Camphor

B

Wood

C

Water

D

Nitrogen

12. Which of the following conventions/ protocols is related to the protection of ozone layer?

A

Vienna Convention, 1985

B

Nagoya Protocol, 2010

C

Kyoto Protocol, 1997

D

Geneva Convention, 1979

13. The combustion of fossil fuels at power plants is the main source of emission of which of the following gases?

A

Carbon Monoxide

B

Sulphur Dioxide

C

Methane

D

Nitrous Oxide

14. Which of the following statements is TRUE about transverse waves?

A

In transverse waves, the particles in the medium move parallel to the direction of propagation of wave

B

The transverse wave moves in the form of crest and troughs

C

The transverse waves move in the form of compressions and rarefactions

D

The transverse waves propagate in a medium which possesses elasticity of volume

15. The secretion produced by the glands in the lining of stomach in human beings is called

A

Succus entericus

B

Bile Juice

C

Gastric Juice

D

Insulin

16. Which of the following waves require a medium to travel?

A

Microwaves

B

X-rays

C

Light Waves

D

Sound Waves

17. Motion of a pendulum is an example of

A

Linear motion

B

Circular motion

C

Rotational motion

D

Periodic motion

18. The unit of measurement used to express the thickness of ozone layer is

A

Newton metre

B

Decibel unit

C

Dobson unit

D

Poise

19. Which of the following processes helps in transportation of minerals from soil to al the parts of the plants?

A

Respiration

B

Imbibiton

C

Transpiration

D

Translocation

20. Which of the following statements is INCORRECT with reference to advantages of tidal energy?

A

Tidal power is a green energy source as it does not emit greenhouse gases

B

Tidal currents are highly unpredictable and inconsistent

C

Electricity can be generated from tides much more efficiently at slower speeds

D

Construction cost of tidal power plants is high but maintenance costs are ralitvely low