The treaty which ushered in NATO, was signed by the member nations at

A. Geneva
B. London
C. Paris
D. Washington
✅ The correct answer is option D.
The treaty which ushered in NATO, was signed by the member nations at Washington. On 4 April 1949, the foreign ministers from 12 countries signed the North Atlantic Treaty (also known as the Washington Treaty) at the Departmental Auditorium in Washington, D.C.: Belgium, Canada, Denmark, France, Iceland, Italy, Luxembourg, the Netherlands, Norway, Portugal, the United Kingdom and the United States.

The first recipient of Bharat Ratna award in 1954 was

A. S. Radhakrishnan
B. C. Rajagopalachari
C. C.V. Raman
D. Jawaharlal Nehru
✅ The correct answer is option B.
The first recipient of Bharat Ratna award in 1954 was C. Rajagopalachari. Chakravarti Rajagopalachari (C. Rajagopalachari; 10 December 1878 – 25 December 1972), informally called Rajaji or C.R., was an Indian politician, independence activist, lawyer, writer, historian and statesman. Rajagopalachari was the last Governor-General of India, as India soon became a Republic in 1950. Furthermore, he was the first Indian-born governor-general, since before him the posts were held by British nationals.

The SLV-3 project provided India with the expertise to lop a larger and more sophisticated launch vehicle

A. PSLV
B. ASLV
C. GSLV
D. None of the above
✅ The correct answer is option B.
The SLV-3 project provided India with the expertise to lop a larger and more sophisticated launch vehicle ASLV. The successful culmination of the SLV-3 project showed the way to advanced launch vehicle projects such as the Augmented Satellite Launch Vehicle (ASLV), Polar Satellite Launch Vehicle (PSLV) and the Geosynchronous satellite Launch Vehicle (GSLV).

The ozone layer restricts

A. visible light
B. infrared radiation
C. x-rays and gamma rays
D. ultraviolet radiation
✅ The correct answer is option D.
The ozone layer restricts ultraviolet radiation. The Ozone layer which is present in the Earth’s atmosphere protects it by restricting from UV or Ultraviolet radiation, the dangerous rays contained by Sun.

Coal mines in Jharkhand are located at:

A. Jharia
B. Jamshedpur
C. Ranchi
D. Lohardanga
✅ The correct answer is option A.
Coal mines in Jharkhand are located at Jharia. In Jharkhand, Jharia in Dhanbad is the Coal Capital of India apart from this You will find the Coal mines in Girdih,Ramgarh,Dumka and Bokaro. India’s Largest Coalfield is in Raniganj,West Bengal.

The chief of the Army staff is assisted by

A. Vice-chief of the Army Staff
B. Principal staff officers such as Deputy Chief, Adjutant General, Military Secretary
C. both (A) and (B)
D. None of the above
✅ The correct answer is option C.
The chief of the Army staff is assisted by Vice-chief of the Army Staff and Principal staff officers such as Deputy Chief, Adjutant General, Military Secretary.

Which body of UNO carries on the function of the UNO with regard to international, economic, social, cultural, education, wealth and related matters?

A. General Assembly
B. Security Council
C. The Economic and Social Council
D. Trusteeship Council
✅ The correct answer is option C.
The Economic and Social Council body of UNO carries on the function of the UNO with regard to international, economic, social, cultural, education, wealth and related matters.