Everyday Science Test 04

Total Questions: 30

1 - A polaride is

A ) A red light filter
B ) A device used for analysing polarized light ✅
C ) A device used in polarimeter
D ) An adjustable shutter

2 - The phenomenon of land and sea breeze is as a result of

A ) Conduction
B ) Convection ✅
C ) Radiation
D ) None of these

3 - Two parallel wires carrying current in the opposite direction

A ) Attract each other ✅
B ) Repel each other
C ) Don't exert any force on each other
D ) None of these

4 - The working of optical fibers is based on the....of electromagnetic waves.

A ) Refraction
B ) Reflection
C ) Total internal reflection ✅
D ) Polarization

5 - Condenser is used

A ) To produce charge
B ) To change the direction of current
C ) To collect the charge ✅
D ) As a good conductor of electricity

6 - The flow of heat from a hot to a cold body is an example of

A ) Adiabatic process
B ) Irreversible process
C ) Reversible process
D ) Isothermal process ✅

7 - What makes the air coming out of a punctured tyre cool?

A ) Adiabatic expansion ✅
B ) Flow at high speed
C ) Isothermal expansion
D ) None of these

8 - Which of the following is not an advantage of AC over DC?

A ) The AC sows skin effect ✅
B ) In AC a wide range of voltage is possible
C ) Lines loss in AC transmission lines are negligible
D ) In AC the magnitude of current can be reduced by a choke

9 - Which of the following instruments may be used to measure AC

A ) Galvanometer
B ) Hot wire ammeter ✅
C ) Moving coil galvanometer
D ) None of these

10 - Aviation fuel for jet aeroplanes consists of purified

A ) Petrol
B ) Kerosene ✅
C ) Gasoline
D ) Diesel

12 - Diamond is the form of carbon

A ) Crystalline ✅
B ) Amorphous
C ) Chemical
D ) Alkaline

13 - In a chemically pure state diamonds are

A ) Monochromatic
B ) Polychromatic
C ) Colourless ✅
D ) None of these

14 - Which of the following is fire resistant?

A ) Asbestos ✅
B ) Gypsum
C ) Dolomite
D ) None of these

15 - Lipids are

A ) Hormones
B ) Fatty acids ✅
C ) Enzymes
D ) None of these

17 - The chemical name of laughing gas is

A ) Nitrous oxide ✅
B ) Nitric oxide
C ) Nitrogen Dioxide
D ) Nitrogen peroxide

18 - The gas used for artificial repenting of green fruits is

A ) Carbon dioxide
B ) Acetylene ✅
C ) Ethane
D ) Oxygen

19 - Baking soda is also known as

A ) Sodium bicarbonate ✅
B ) Sodium carbonate
C ) Calcium chloride
D ) Calcium carbonate

20 - Which of the following is not a compound of calcium?

A ) Gypsum
B ) Calcium oxalate
C ) Chalk
D ) Acetylene ✅

21 - In man, the pressure in the glomerulus is about

A ) 50 mm hg
B ) 60mm Hg
C ) 70mm Hg ✅
D ) 90mm Hg

22 - The bone formed by the ossification of a tendon is termed as

A ) Cartilaginous bone
B ) Dermal bone
C ) Sesamoid bone ✅
D ) All of these

23 - The nerve endings which are sensory to pain are known as

A ) Chemoreceptors
B ) Algesireceptors ✅
C ) Tango receptors
D ) Photo receptors

Explanation: Algesireceptor is a pain receptor, which is usually a bare nerve ending without any organized end organ, also called as nociceptor.

26 - Cartilage is a type of

A ) Epithelial tissue
B ) Connective tissue ✅
C ) Muscular tissue
D ) Nervous tissue

27 - The red blood cells are produced in

A ) Bone marrow ✅
B ) Liver
C ) Spleen
D ) Blood plasma

28 - In blood RBC and WBC are present in ratio of

A ) 1:10
B ) 1:100
C ) Spleen
D ) 1:1000 ✅

29 - The quick healing of a fracture requires a rich supply of

A ) Blood ✅
B ) Oxygen
C ) Water
D ) Nerves

30 - The skin layer which helps reduce the heat loss in cold climate is

A ) Epidermal layer
B ) Dermal layer
C ) Subcutaneous layer ✅
D ) Both a and b