Civilsdaily
Science and Technology
Where was the first desalination plant in India to produce one lakh liters of freshwater per day based on low-temperature thermal desalination principle commissioned?
(a)
Kavaratti
(b)
Port Blair
(c)
Mangalore
(d)
Valsad
(A)
Assertion (A): A jet aircraft moving at Mach Number equal to 1 travels faster at an altitude of 15 km than while moving at sea level. Reason (R): The velocity of sound depends on the temperature of the surrounding medium.
Both A and R are individually true and R is the correct explanation of A.
Both A and R are individually true but R is not the correct explanation of A.
A is true but R is false
A is false but R is true
Four wires of the same material and of dimensions as under are stretched by a load of the same magnitude separately. Which one of them will be elongated maximum?
Wire of 1 m length and 2 mm diameter
Wire of 2 m length and 2 mm diameter
Wire of 3 m length and 1.5 mm diameter
Wire of 1 m length and 1 mm diameter
(C)
What is the average distance (approximate) between the Sun and the Earth?
70×10^5 km
100×10^5 km
110×10^6 km
150×10^6 km
(D)
Recently, the European Union and other six countries including India signed the International Thermonuclear Experimental Reactor (ITER) Project. Which one of the following was not a signatory to it?
Canada
China
Japan
USA
NASA’S Deep Impact space mission was employed to take detailed pictures of which comet nucleus?
Halley’s Comet
Hale-Bopp
Hyakutake
Tempel 1
Who among the following is considered as the inventor of the World Wide Web (WWW)?
Edward Kasner
Bill Gates
Tim Berners-Lee
Vinod Dham
Which one of the following non-metals is not a poor conductor of electricity?
Sulphur
Selenium
Bromine
Phosphorus
(B)
Which one of the following does not contain silver?
Horn Silver
German Silver
Ruby Silver
Lunar Caustic
Which one of the following types of glass can cut off ultraviolet rays?
Soda glass
Pyrex glass
Jena glass
Crookes glass