51. About scramjet engine technology tested by DRDO:
- Scramjets have moving parts.
- Ideal for subsonic missiles.
- Operate by combusting fuel in supersonic airflow.
(A) Only 1 and 2
(B) Only 1 and 3
(C) Only 2 and 3
(D) Only 3
✅ Answer: (D) Only 3
Explanation: Scramjets have no moving parts, work at hypersonic speeds, and combust fuel in supersonic airflow.
52. About NITI Aayog:
- Aims for Sustainable Development Goals and cooperative federalism.
- PM is ex-officio Chairperson.
- Has 8 full-time members.
(A) 2 and 3
(B) 2
(C) 1
(D) 1 and 2
✅ Answer: (D) 1 and 2
Explanation: NITI Aayog promotes SDGs and cooperative federalism; PM chairs it. It currently has 4 full-time members, not 8.
53. Savannas are —
(A) Temperate Grasslands
(B) Coniferous Forests
(C) Temperate Deciduous Forests
(D) Tropical Grasslands
✅ Answer: (D) Tropical Grasslands
Explanation: Savannas are tropical grasslands, found in Africa (e.g., Serengeti).
54. On which date was “Poorna Swaraj” declared as the goal of the Indian National Congress?
(A) 26 January 1930
(B) 12 March 1930
(C) 9 August 1942
(D) 15 August 1947
✅ Answer: (A) 26 January 1930
Explanation: Lahore Session (1929) declared 26 January 1930 as Independence (Poorna Swaraj) Day.
55. Name of the 17th edition of India–Mongolia joint military exercise —
(A) Exercise Desert Knight
(B) Exercise Nomadic Elephant
(C) Exercise Khan Quest
(D) Exercise Yudh Abhyas
✅ Answer: (B) Exercise Nomadic Elephant
Explanation: Nomadic Elephant is the bilateral army exercise between India and Mongolia.
56. A Joint State Public Service Commission can be created by —
(A) An Act of Parliament
(B) A resolution of Rajya Sabha
(C) An order of the President
(D) Acts of the concerned State Legislatures
✅ Answer: (C) An order of the President
Explanation: As per Article 315(2), the President may establish a Joint State PSC by order.
57. Who founded the ‘Central National Mohammedan Association’ (1877–78)?
(A) Abdul Latif Khan
(B) Sayyid Ahmed Khan
(C) Sayyid Amir Ali
(D) Muhammad Ali
✅ Answer: (C) Sayyid Amir Ali
Explanation: Founded by Sayyid Amir Ali to represent Muslim interests and political rights.
58. Match the following:
| List – I | List – II |
|---|---|
| i. Communist Party of India | d. M. N. Roy |
| ii. Servants of the People Society | c. Lala Lajpat Rai |
| iii. Indian Trade Union Congress | a. N. M. Joshi |
| iv. Labour Swaraj Party | b. Qazi Nazrul Islam |
✅ Answer: (C) i–d, ii–c, iii–a, iv–b
Explanation: Correct historical associations.
59. Which is an exclusive function of the Rajya Sabha (not shared with Lok Sabha)?
(A) Electing the Vice-President
(B) Creation of All India Services
(C) Altering boundaries of States
(D) Creation of new Legislative Council in States
✅ Answer: (B) Creation of All India Services
Explanation: Under Article 312, only Rajya Sabha can authorize creation of new All-India Services by a 2/3 majority.
60. Arrange the following mountain ranges from North to South:
I. Devagiri
II. Gandhamardan
III. Mahendragiri
IV. Malyagiri
(A) I, II, III, IV
(B) II, IV, III, I
(C) IV, II, I, III
(D) I, II, IV, III
✅ Answer: (B) II, IV, III, I
Explanation: From north to south — Gandhamardan → Malyagiri → Mahendragiri → Devagiri (Odisha hill ranges).