Density of Water is_________...? Mcqs

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Density of Water is_________...?

(A) 897 kg/m³
(B) 997 kg/m³

(C) 1000 kg/m³
(D) 1025 kg/m³

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The gas used in a refrigerator to cool water is___________...?

(A) Nitrogen
(B) Carbon dioxide

(C) Methane
(D) Tetrafluoroethane

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What is the number of known crystalline phases of water ________...?

(A) 4
(B) 8

(C) 17
(D) 18

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The common refrigerant used in domestic Refrigerator is_____________...?

(A) Neon
(B) Spirit

(C) Freon/Ammonia
(D) Methane

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Freezing point of water is__________...?

(A) 0°C
(B) -2°C

(C) -4°C
(D) None of above

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Ring planet is Saturn; least dense and 2nd largest planet is_________...?

(A) Jupiter
(B) Saturn

(C) Neptune
(D) Mercury

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The most densest substance on the Earth is __________....?

(A) Platinum
(B) Copper

(C) Steel
(D) Osmium

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Boiling point of pure water is __________...?

(A) 90’C
(B) 97’C

(C) 100’C
(D) None of these

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In Fahrenheit scale the boiling point of water is ______...?

(A) 208°F
(B) 210°F

(C) 212°F
(D) 214°F

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The nearest planet to the Earth is _________...?

(A) Venus
(B) Mercury

(C) Mars
(D) Moon

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The hormone that increases the rate of heart beat and blood pressure after shock in a person is___________...?

(A) Adrenalin
(B) Gastrin

(C) Thyroxin
(D) Pancreatic

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The most abundant element in the universe is __________....?

(A) Oxygen
(B) Hydrogen

(C) Carbon Dioxide
(D) Silicon

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During which process does heat transfer occur because of density differences__________...?

(A) Convection
(B) Radiation

(C) Conduction
(D) None of these

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The vitamin which is generally excreted by humans in urine is__________...?

(A) Vitamin A
(B) Vitamin B

(C) Vitamin B12
(D) Vitamin C

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In Fahrenheit scale the freezing point of water is ______ and boiling point of water is _______ ...?

(A) 32°F, 212°F
(B) 212°F, 32°F

(C) 35°F, 210°F
(D) 210°F, 35°F

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Triple point of water is _________...?

(A) 271 K
(B) 272.2 K

(C) 273.16 K
(D) None of these

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Second name of ethyl alcohol is___________...?

(A) Ethene
(B) Ethanol

(C) Propyle
(D) none

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Despite the fluctuation in human body temperature. The temperature of human body remains at _________...?

(A) 35 °C
(B) 37 °C

(C) 42 °C
(D) 54 °C

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pH value of water is _________...?

(A) 5
(B) 5-6

(C) 8.7-10.5
(D) 6.5-8.5

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SI unit of light is _________ ...?

(A) watt
(B) Pascal

(C) Candela
(D) Joule

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Density of Ice is_________...?

(A) 800kg/m3
(B) 917kg/m3

(C) 930kg/m3
(D) 1000kg/m3

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Wind energy is the __________ energy....?

(A) Potential
(B) Transverse

(C) Kinetic
(D) Mechanical

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Each day human body breathe in __________ liters of air....?

(A) 5,000 to 10,000
(B) 10,000 to 15,000

(C) 15,000 to 20,000
(D) 20,000 to 25,000

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A fresh egg when placed in salt water will __________ ...?

(A) sink and go to the bottom
(B) sink but will not go to the bottom

(C) Float
(D) Burst

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Main constituent in air is ___________...?

(A) Oxygen
(B) Nitrogen

(C) Hydrogen
(D) Helium

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Fuel used in a Fast Breeder Reactor is _____________...?

(A) Uranium Oxide
(B) Uranium Plutonium carbide

(C) Uranium Plutonium Oxide
(D) Uranium thorium Oxide

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The study of heavenly bodies is known as_________...?

(A) Astrology
(B) Astronautics

(C) Astronomy
(D) Astrophysics

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Only planet whose day is longer than its year is__________...?

(A) Mercury
(B) Neptune

(C) Venus
(D) None of These

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Dead red blood corpuscles are stored in____________...?

(A) Liver
(B) Spleen

(C) Kidney
(D) Heart

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In Fishes excretory Product is__________...?

(A) Nitrogen
(B) Ammonia

(C) Uria
(D) Carbon dioxide

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What percentage of earth’s water supply is fresh water___________...?

(A) 3%
(B) 5%

(C) 21%
(D) None of these

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The density of Air is_____________...?

(A) 0.225 kg/m3
(B) 1.025 kg/m3

(C) 1.225 kg/m3
(D) 1.425 kg/m3

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The SI base unit for mass is_____________...?

(A) Gram
(B) Pound

(C) Kilogram
(D) Ounce

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In Fahrenheit scale the freezing point of water is ______...?

(A) 30°F
(B) 32°F

(C) 34°F
(D) 100°F

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1 Meter = _________...?

(A) 1000 centimeters (cm)
(B) 100 centimeters (cm)

(C) 10 centimeters (cm)
(D) 10000 centimeters (cm)

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The planet that moves round the Sun at the highest speed is_________...?

(A) Jupiter
(B) Venus

(C) Mars
(D) Mercury

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The production of rubber tree is better adopted to areas where the climate is_________...?

(A) Warm and humid
(B) Warm and dry

(C) Cool and moist
(D) cool and dry

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The main cause of floods in the river is__________...?

(A) Heavy snowfall
(B) Earthquakes

(C) Deforestation
(D) Construction of dams

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The coldest region of the Earth’s atmosphere is__________...?

(A) Exosphere
(B) Thermosphere

(C) Stratopause
(D) Mesopause

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Virus is__________...?

(A) unicellular
(B) multicellular

(C) acellular
(D) none of these

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Largest Galaxy in the Universe is_________...?

(A) Andromeda Galaxy
(B) Milky-Way

(C) Spiral Galaxy
(D) Horseshoe Galaxy

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In the Centigrade scale, the freezing point of water is _______ and the boiling point of water is ________...?

(A) 0°C, 50°C
(B) 10°C, 100°C

(C) 0°C, 100°C
(D) 5°C, 90°C

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Density of Milk is________...?

(A) 1.024 g/cm3
(B) 1.034 g/cm3

(C) 1.044 g/cm3
(D) 1.054 g/cm3

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A shooting star is _________...?

(A) Sun
(B) A comet

(C) A meteor
(D) An steroid

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Moon light reaches to earth in___________seconds...?

(A) 0.3 seconds
(B) 1.3 seconds

(C) 2.3 seconds
(D) 3.3 seconds

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The taste of water is ______...?

(A) Sour
(B) Bitter

(C) Sweet
(D) Tasteless

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Heavy mechanical complex use a large amount of water for_________...?

(A) Cooling
(B) Freezing

(C) Washing
(D) Mixing

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The process of converting wet waste to manure is___________...?

(A) Metabolism
(B) Conservation

(C) Incineration
(D) Composting

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In blood, the percentage of water is___________...?

(A) 75%
(B) 85%

(C) 90%
(D) 95%

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The most dense and heaviest planet is___________...?

(A) Jupiter
(B) Earth

(C) Mars
(D) Venus

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Earthquakes occur most frequently at __________...?

(A) Plate boundaries
(B) Plate surface

(C) Ocean beds
(D) All of the above

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The major ingredient of leather is__________________...?

(A) Collagen
(B) Polymer

(C) Nucleic acid
(D) None of these

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The density of water is __________...?

(A) 1 g/cm3
(B) 1.5 g/cm3

(C) 2 g/cm3
(D) none of these

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The average acceleration caused by gravity per second is____________...?

(A) 22 feet
(B) 32 feet

(C) 52 feet
(D) 42 feet

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Butter paper is _________ material because it scatters light....?

(A) Transparent
(B) Translucent

(C) Opaque
(D) None

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Second layer of Earth’s atmosphere is__________...?

(A) Stratosphere
(B) Mesosphere

(C) Troposphere
(D) Thermosphere

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SI unit of time is_________...?

(A) second
(B) kilo gram

(C) meter
(D) volt

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If a machine performs 20 J of work in 10 sec. then it power is ______...?

(A) 200 watt
(B) 20 watt

(C) 2 watt
(D) 0.2 watt

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lightest metal is__________...?

(A) Lithium
(B) Sodium

(C) Magnesium
(D) Aluminium

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The type of glass used in making lenses and prism is___________...?

(A) Pyrex glass
(B) jena glass

(C) Flintglass
(D) Soft glass

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The major component of honey is_________...?

(A) Glucose
(B) Surcose

(C) Maltose
(D) Fructose

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The point within the Earth where earthquakes originate is _________...?

(A) Comma
(B) Origin

(C) Epicenter
(D) Focus

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The variety of coal in which the deposit contains recognizable traces of the original plant material is____________...?

(A) bitumen
(B) anthracite

(C) lignite
(D) peat

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The main factor for determining a region’s climate is ___________...?

(A) Latitude
(B) Temperature

(C) Longitude
(D) None of them

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The number of spark plugs needed in a diesel engine is__________...?

(A) 2
(B) 3

(C) 0
(D) 4

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Founder of modern astronomy was _________________...?

(A) Archimedes
(B) William Gilbert

(C) Nicolas Copernicus
(D) Michael Faraday

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Water is a ______...?

(A) Polar solvent
(B) Non-polar solvent

(C) Amphiphatic solvent
(D) Non-polar charged solvent

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Smallest animal is _________...?

(A) Skunk
(B) Gorilla

(C) Tiger
(D) Cat

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The scientific study of spiders is called __________ ...?

(A) Arachnology
(B) Osteology

(C) Pomology
(D) None of these

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The pyramid of energy in any ecosystem is _________...?

(A) Always upright
(B) May be upright or invented

(C) Always inverted
(D) Always Circle

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Albert Einstein was a____________...?

(A) Physicist
(B) Physician

(C) Chemist
(D) Biologist

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Most soluble in water is:__________...?

(A) Camphor
(B) Sulphur

(C) Common salt
(D) Sugar

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Earthquake waves travel faster in __________...?

(A) Water
(B) Flexibl rock

(C) Air
(D) Soil

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Curie is a unit of measuring the intensity of ___________...?

(A) Radioactivity
(B) Quantity of Heat

(C) Work or Energy
(D) Power

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Water has maximum density at____________...?

(A) 0°C
(B) 4°C

(C) 4° K
(D) 4.8°C

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The main Constituent of Biogas is__________...?

(A) Methane
(B) Hydrogyn

(C) Oxygen
(D) Carbin dioxide

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Water vapor is ______________...?

(A) A gas
(B) A cloud droplet

(C) A rain drop
(D) A snowflake

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The SI unit of Heat is________...?

(A) Watt
(B) Volt

(C) Joule
(D) Newton

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The amount of energy in wheat is__________...?

(A) 100 K Calories/100 gram
(B) 245 K Calories/100 gram

(C) 348 K Calories/100 gram
(D) 490 K Calories/100 gram

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The only non metal exists in liquid state is ___________...?

(A) Mercury
(B) Bromine

(C) Phosphorus
(D) Iodine

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In order to prevent the corrosion of iron pipes they are often coated with a layer of zinc. This process is termed as____________...?

(A) Electroplating
(B) Annealing

(C) Galvanization
(D) Vulcanization

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BCG vaccine is used to produce immunity against___________...?

(A) Whooping cough
(B) Tuberculosis

(C) Virus fever
(D) Smallpox

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