4221: Directive Principles of State Policy are included in which part of the Indian Constitution?
(a) Part IV
(b) Part III
(c) Part II
(d) Part I
4222: A solid cube just gets completely immersed in water when a 0.2 kg mass is placed on it. If the mass is removed, the cube is 2 cm about the water level. What is the length of each side of the cube?
(a) 12 cm
(b) 10 cm
(c) 8 cm
(d) 6 cm
4223: Though a few (gas-based) industries have already been established good reserves of natural gas in India remain unutilised. This vast resource of natural gas can be used in the production of
(a) fertilizers
(b) carbide
(c) graphite
(d) synthetic petroleum
4224: The 1929 Session of Indian National Congress is of significance in the history of the Freedom Movement because the
(a) Attainment of Self-Government was declared as the objective of the Congress
(b) Attainment of Poorna Swaraj was adopted as the goal of the Congress
(c) Non-Cooperation Movement was launched
(d) Decision to participate in the Round Table Conference in London was taken
4225: Cryogenic engines find applications in
(a) sub-marine propulsion
(b) frost-free refrigerators
(c) rocket technology
(d) researches in superconductivity