271: Which of the following pairs is/are correctly matched ?
Inventor : Invention
1. Christopher : Hovercraft Cockerell
2. David Bushnell : Submarine
3. J.C. Perrier : Steamship
Select the correct answer using the code given below :
(a) 1 and 2, only
(b) 2 and 3, only
(c) 1 and 3, only
(d) 1, 2 and 3
272: The first feature film (talkie) to be produced in India was
(a) Hatimtai
(b) Alam Ara
(c) Pundalik
(d) Raja Harishchandra
Explanation:
Alam Ara - First Feature Film (talkie) released on May 14, 1931 by A. M. Irani.
Raja Harishchandra - First Feature Film (Silent) released on May 3, 1913 by Dada Saheb Phalke
273: What is the correct sequence of the descending order of the following States in respect of female literacy rates as per the 1991 Census ?
I. Mizoram
II. Kerala
III. Goa
IV. Nagaland
Choose the correct answer using the codes given below:
(a) II, III, I, IV
(b) II, I, III, IV
(c) II, III, IV, I
(d) I, II, IV, III
274: The identity platform `Aadhaar' provides open "Application Programming Interfaces (APIs)". What does it imply?
1. It can be integrated into any electronic device.
2. Online authentication using iris is possible.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
275: In the context of Indian defence, consider the following statements:
1. The Shourya missile files with a speed of more than 8 Mach.
2. The range of Shourya missile is more than 1660 km.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Explanation:
The Shourya missile is a canister launched hypersonic surface to- surface tactical missile developed by the Indian Defence Research and Development Organization (DRDO) for use by the Indian Armed Forces. It has a range of between 600-700 km and is capable of carrying a payload of one-tonne conventional or nuclear warhead.
Shourya can reach a velocity of Mach 6 even at low altitudes. On November 12, even before the missile crossed a distance of 300 km, it reached a velocity of Mach 5, heating up its surface to 700 {+ O} Celsius. The missile performed an ingenuous maneuver of rolling to spread the heat uniformly on its surface. Its flight time is 500 seconds to 700 seconds.