Everyday Science Test 14

Total Questions: 30

1 - A decibel is a

A ) Musical instruments
B ) Highest frequency emitted by a tunning fork
C ) A measure of intensity level ✅
D ) A measure of clarity of sound

2 - The energy of a body executing SHM is

A ) Kinetic
B ) Potential
C ) Partly kinetic and partly potential ✅
D ) None

3 - Simple harmonic motion can be shown as a

A ) Sine wave ✅
B ) Cousin wave
C ) Both a and b
D ) None

4 - Sound waves are

A ) Longitudinal waves ✅
B ) Transverse waves
C ) Electromagnetic waves
D ) None

5 - Sound waves cannot travel through

A ) Water
B ) Steel
C ) Vacumm ✅
D ) Air

6 - The velocity of sound is

A ) Independent of the pressure of the gas
B ) Directly proportional to the pressure of gas
C ) Inversely proportional to the pressure of gas ✅
D ) Inversely proportional to the square of the pressure of gas

7 - A reflecting spherical mirror does not suffer from

A ) Chromatic aberration
B ) Spherical aberration ✅
C ) Coma
D ) Astigmatism

8 - The SI unit of power of a lens is

A ) Metre
B ) Metre per second
C ) Diopters ✅
D ) None

9 - A convex lens is also known as

A ) Diverging lens
B ) Converging lens ✅
C ) Simple lens
D ) None

10 - The conversions of a substance directly from liquid to vapour state is known as

A ) Decomposition
B ) Vaporization
C ) ionization
D ) Boiling ✅

11 - Lime is sometimes applied to soil in order to

A ) Increase the acidity of the soil
B ) Increase the alkalinity of the soil ✅
C ) Decrease the alkalinity of the soil
D ) Restore the nitrates to the soil

12 - Characteristics feature of an oxidizing agent is that it always

A ) Contains oxygen
B ) Gains electrons ✅
C ) Is a non metal
D ) None

13 - Ion exchange is a process of

A ) Metal extraction
B ) Water softening ✅
C ) Heavy water production
D ) None

14 - Which of the following elements are the main constituents of bronze?

A ) Nickel and chromium
B ) Lead and Tin
C ) Copper and zinc
D ) Copper and Tin ✅

15 - Which of the following substances is made of only one type of molecule?

A ) Carbon dioxide ✅
B ) Air
C ) Lemonade
D ) Vinegar

16 - Rust stain in cloth can be removed by

A ) Hydrogen peroxide
B ) Alcohol
C ) Oxalic acid ✅
D ) Petrol

17 - The characteristic of odour of garlic is due to

A ) A chloro compound
B ) A sulphur compound ✅
C ) A flourine compound
D ) Acetic acid

18 - ........ among the following has the highest fuel values.

A ) Hydrogen ✅
B ) Charcoal
C ) Natural gas
D ) Gasoline

19 - Which of the following is used as an antifreeze in automobile engines?

A ) Propyle Alcohol
B ) Ethanol
C ) Methanol
D ) Ethylene glycol ✅

20 - Which vitamin is also called calciferol?

A ) Vitamin
B ) Vitamin A
C ) Vitamin K
D ) Vitamin D ✅

21 - Name the ready source of energy available for athletes?

A ) Carbohydrates ✅
B ) Fats
C ) Minerals
D ) Vitamins

24 - The vitamin which is generally excreted by humans in urine is

A ) Vitamin A
B ) Vitamin D
C ) Vitamin C ✅
D ) None

25 - Which one of the following vitamins is known as the anti sterile factor?

A ) Ascorbic acid
B ) Retinol
C ) Riboflavin ✅
D ) None

26 - Deficiency of vitamin C leads to a disease known as

A ) Scurvy ✅
B ) Infertility
C ) Rickets
D ) Beri Beri

27 - Deficiency of vitamin B1 causes

A ) Scurvy
B ) Infertility
C ) Rickets
D ) BeriBeri ✅

28 - Fat soluble vitamins are

A ) Vitamins A,B
B ) Vitamins A,D,E,K ✅
C ) Vitamins A B C and D
D ) Vitamin B and C

29 - Water soluble vitamins are

A ) Vitamins B,E
B ) Vitamins A and B
C ) Vitamins C and D
D ) Vitamin B and C ✅

30 - Which of the following helps in clotting of blood?

A ) Vitamins B1
B ) Vitamins D
C ) Vitamins K ✅
D ) Vitamins B2