Science & Technology Questions for IAS Prelims - Set 8
1. The volume of water__________ after freezinga) Increases
b) decreases
c) Doesn't change
d) First decreases then increases
View Answer / Hide AnswerANSWER: a) Increases
The volume of water increases after freezing due to molecular expansion.
a) clover - snail - thrush - hawk
b) snail -clover - thrush - hawk
c) snail -clover -hawk- thrush
d) hawk- hawk- snail -clover
View Answer / Hide AnswerANSWER: d) hawk- hawk- snail -clover
Clover is a plant and it is the producer in this food chain. A thrush eats lots of snails, and a hawk eats lots of thrushes.
1. Jupiter
2. Saturn
3. Uranus
4. Neptune
a) 1,2,3
b) 2,3,4
c) 1,3,4
d) All the above
View Answer / Hide AnswerANSWER: d) All the above
The rings around Jupiter, Uranus, and Neptune are much smaller, darker, and fainter than the rings of Saturn. All are gas giants.
a) All her daughters are color-blind where as all the Sons have normal color vision.
b) All her sons are color-blind where as all the daughters are carrier.
c) All her sons are color-blind where as all the daughters have normal color vision.
d) None
View Answer / Hide AnswerANSWER: c) All her sons are color-blind where as all the daughters have normal color vision.
Color blindness is usually a sex-linked condition. The genes that produce photo pigments are carried on the X chromosome; if some of these genes are missing or damaged it causes color blindedness.
1. Eukaryotic cells have a membrane-bound nucleus.
2. Bacteria are an example of Eukaryotic cells
3. Which of the above statements is/are correct?
a) Only 1
b) Only 2
c) Both
d) None
View Answer / Hide AnswerANSWER: a) Only 1
Bacteria are an example of prokaryotic cells
1. Cellulose is a polymer of beta glucose.
2. Cellulose molecules are held together by hydrogen bonds
3. The cellulose in a cell is exported to its outer membrane by Golgi bodies.
Which of the following statements are true?a) 1,2
b) 2,3
c) 1,3
d) All
View Answer / Hide AnswerANSWER: d) All
Cellulose molecules are held together by hydrogen bonds to form microfibrils and these form cellulose fibres.
a) Hydro, Thermal, Renewable, Nuclear
b) Hydro, Thermal, Nuclear, Renewable
c) Thermal, Hydro,Nuclear, Renewable
d) Thermal, Hydro, Renewable, Nuclear
View Answer / Hide AnswerANSWER: d) Thermal, Hydro, Renewable, Nuclear
Thermal energy contributed 64% (100,351.5 MW) of the country's total power generating capacity, while hydro energy contributed 24% (36,885.40 MW), renewable energy sources around 9.8% (15,427.10 MW), and nuclear energy contributed 3% (4,120 MW) to the total capacity.
1. ISRO is now working on Chandrayaan-2 joint programme with the Russian Federal Space Agency
2. The mission is planned to be launched to the Moon by a Polar Satellite Launch Vehicle Geosynchronous Satellite Launch Vehicle (GSLV)
Which of the above statements is/are correct?a) Only 1
b) Only 2
c) Both
d) None
View Answer / Hide AnswerANSWER: a) Only 1
The mission is planned to be launched to the Moon by a Geosynchronous Satellite Launch Vehicle (GSLV)
a) Guinea
b) Benin
c) Liberia
d) Sierra Leone
View Answer / Hide AnswerANSWER: c) Liberia
The Ebola epidemic is slowing in Sierra Leone and Guinea. Liberia has been declared Ebola-free by WHO
a) Diesel - Kerosene - Wood - Coal - Hydrogen
b) Kerosene - Diesel - Wood - Coal - Hydrogen
c) Coal - Hydrogen - Wood - Diesel - Kerosene
d) Hydrogen - Kerosene - Diesel - Coal - Wood
View Answer / Hide AnswerANSWER: d) Hydrogen - Kerosene - Diesel - Coal - Wood
Fuel value is also called as a Calorific Value.Higher Calorific Value Is The maximum amount of energy that can be obtained from the combustion of a fuel
