In stratosphere, which of the following elements acts as a catalyst in degradation of ozone and release of molecular oxygen? Option 1 : Oxygen Option 2 : Fe Option 3 : Cl Option 4 : Carbon
Q. An exploratory well encountered three reservoir formations S1 (perfectly cemented), S2 (poorly cemented) and S3 (fractured). The Formation Factor (F) is governed by the equation 𝐹 = 𝑎𝜙−𝑚, where ‘𝜙’ is the porosity and ‘m’ is the cementation factor. The constant ‘a’, linked to tortuosity is assumed to be 1 for all the formations.
The Golgi complex participates in Option 1 : Fatty acid breakdown Option 2 : Respiration in bacteria Option 3 : Activation of amino acid Option 4 : Formation of secretory vesicles
What type of ecological pyramid would be obtained with the following data? Secondary consumer : 120 g Primary consumer : 60 g Primary producer : 10 g Option 1 : Pyramid of energy Option 2 : Upright pyramid of numbers Option 3 : Inverted pyramid of biomass Option 4 : Upright pyramid of biomass
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Q. In which one of the following offshore platforms, the condition of the sea floor is a vital consideration? (A) Drill ship platforms (B) Tension leg platforms (C) Concrete gravity platforms (D) Floating, production, storage and offloading (FPSO) platforms Ans: Concrete gravity platforms
Q. Which one of the following offshore platforms DOES NOT use buoyant columns or pontoons? (A) Tension leg platforms (B) Jack up platforms (C) Spar platforms (D) Semi-submersible platforms Ans: Jack up platforms
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Q. H2S gas is (A) acidic. (B) non-corrosive. (C) lighter than air. (D) non-flammable. Ans: acidic Sol: H2S gas, also known as hydrogen sulfide gas, is (A) acidic. Hydrogen sulfide is an acidic gas that can react with water to produce hydrosulfuric acid (H2S). It can also form acidic solutions when dissolved in water. Additionally,
Natality refers to Option 1 : Death rate Option 2 : Number of individuals leaving the habitat Option 3 : Birth rate Option 4 : Number of individuals entering a habitat
World Ozone Day is celebrated on Option 1 : 22nd April Option 2 : 5th June Option 3 : 16th September Option 4 : 21st April
Q. Which one of the following flow regimes is more favorable for gas lift operation? (A) Bubbly flow (B) Annular flow (C) Churn flow (D) Stratified flow Ans: Bubbly flow
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