Everyday Science Test 08

Total Questions: 29

1 - Which of the following does not admit any division?

A ) Atom ✅
B ) Molecules
C ) Compound
D ) None

2 - The dynamo converts

A ) Mechanical energy into electrical energy ✅
B ) Electrical energy into mechanical energy
C ) Mechanical energy into magnetic energy
D ) None

3 - Metals are good conductor of electricity because

A ) They contain free electrons ✅
B ) The atoms are lightly packed
C ) They have high melting point
D ) All

4 - In diesel engines ignition takes place by

A ) Compression ✅
B ) Electrical spark
C ) Dynamo
D ) Battery

5 - Cloudy nights are warmer because

A ) Clouds prevent radiation of heat from ground to air ✅
B ) Of low atmospheric pressure
C ) Of the compact density of air
D ) More dust particles gather in the air

6 - In deserts clouds do not precipitate because of

A ) Low pressure
B ) Low humidity ✅
C ) High wind velocity
D ) Low temperature

7 - What are ultrasonic waves?

A ) Sound waves having frequency shorter than audio frequency
B ) Sound waves produced in a vacuum
C ) Sound waves having frequency higher than audio frequency range ✅
D ) None

8 - In the process of galvanization an iron sheet is coated with

A ) Aluminum
B ) Zinc. ✅
C ) Tin
D ) Galena

9 - Fish plates are used in railway tracks

A ) To avoid tracks being distorted due to temperature fluctuations
B ) To control speed of the train ✅
C ) To connect two rails
D ) To keep the rails equidistant

10 - The most important ore of aluminum is

A ) Bauxite ✅
B ) Magnetite
C ) Haematite
D ) Monazite

11 - Alcohol contains

A ) Nitrogen, hydrogen, oxygen
B ) Carbon, hydrogen, oxygen ✅
C ) Oxygen, carbon, nitrogen
D ) Hydrogen, chlorine, oxygen

13 - The chemical name of quartz?

A ) Calcium oxide
B ) Calcium phosphate
C ) Sodium phosphate
D ) Sodium silicate ✅

14 - Quick lime can be obtained by

A ) Adding HCL to Calcium
B ) Heating Limestone in a Lime Kiln ✅
C ) Putting calcium in hot water
D ) None

15 - When zinc reacts with hydrochloric acid the gas evolved is

A ) Oxygen
B ) Hydrogen ✅
C ) Chlorine
D ) None

16 - Which of the following is acidic in nature

A ) Sugar
B ) Lime
C ) Baking powder
D ) Vinegar ✅

17 - The so called fourth state of matter refers to

A ) Mercury
B ) LPG
C ) Dry ice
D ) Plasma ✅

18 - Brown ring test is used for

A ) Analysis of nitrates ✅
B ) Identification of certain elements in a solution
C ) Measurements of nitrogen in an organic compound
D ) None of these

19 - Which of the following acids is found in digestive juices

A ) Lactic acid
B ) Tannic acid
C ) Amino acid
D ) Hydrochloric acid ✅

20 - The total refractive power of eye lens is

A ) 10 diopters
B ) 15dioptres ✅
C ) 20 diopters
D ) 24 diopters

21 - The lens system focuses the image of an object on

A ) Choroid
B ) Cornea
C ) Retina ✅
D ) None

22 - The image created on retina in eye is

A ) Small, virtual and inverted
B ) Small, real and inverted ✅
C ) Large, virtual and erect
D ) Large, real and inverted

23 - Which of the following is a tissue

A ) Ovary
B ) Kidney
C ) Lungs
D ) Blood ✅

24 - Cardiac muscle fibers are

A ) Straited voluntary
B ) Straited involuntary ✅
C ) Non straited voluntary
D ) Non straited involuntary

25 - Haversian canals are present in

A ) Cartilage
B ) Skin
C ) Bones ✅
D ) Muscles

26 - Cells of the nerve tissue are called

A ) Axons
B ) Neurons ✅
C ) Dendrites
D ) Schwann cells

27 - A man respires about

A ) 72-80 times a minute
B ) 20-30 times a minute
C ) 40-50 times a minute
D ) 16-20 times a minute ✅

28 - Sweet glands in man occur all over the body except

A ) Palms and soles
B ) Stomach and mouth surface
C ) Head
D ) Lips and glans penis ✅