MCQ
Hydrocarbons & Energy MCQ - Practice Questions with Answers
Solve 87 Hydrocarbons & Energy questions for RAS/RPSC preparation.
Practice questions
Q1With reference to methane hydrates in India, consider the following statements: 1. Methane hydrate deposits in the Krishna-Godavari basin have been reported as biogenic in origin. 2. Methane hydrate is formed when water and methane meet at low pressure and high temperature in oceans. 3. The methane hydrate deposit in the Krishna-Godavari basin has been described as a rich source of methane, a natural gas. 4. A cited study found maximum methanogenic diversity in the Krishna-Godavari basin compared with the Andaman and Mahanadi basins. Which of the statements given above are correct?
Statements 1, 3 and 4 are correct. PIB reports biogenic methane hydrate deposits in the KG basin, describes the basin's deposit as a rich methane source, and notes maximum methanogenic diversity there. Statement 2 is false because methane hydrate forms at high pressures and low temperatures, not low pressure and high temperature.
Q2With reference to safety properties of natural gas and CNG, consider the following statements: 1. In case of a leak, natural gas tends to rise and disperse because it is lighter than air. 2. CNG has a higher auto-ignition temperature than petrol. 3. Natural gas burns even when its concentration in air is below 5 percent. Which of the statements given above are correct?
Statements 1 and 2 are correct: PPAC says leaked natural gas rises and disperses and gives CNG a higher auto-ignition temperature than petrol. Statement 3 is false because PPAC says natural gas will not burn below 5 percent concentration in air.
Q3With reference to LNG, consider the following statements: 1. LNG is natural gas in liquid form. 2. Natural gas becomes LNG when cooled to about -161 degrees Celsius. 3. LNG occupies the same volume as natural gas in gaseous form. Which of the statements given above are correct?
Statements 1 and 2 are correct: PPAC defines LNG as natural gas in liquid form and gives the cooling temperature as -161 degrees Celsius. Statement 3 is false because PPAC says LNG occupies only 1/600 of the volume of natural gas.
Q4Consider the following statements about natural-gas processing: 1. Wet natural gas usually contains ethane, propane, butanes and pentanes along with methane. 2. Dry consumer-grade natural gas is called natural gas plant liquids. 3. Water vapor and nonhydrocarbon compounds are removed at processing plants. 4. Natural gas plant liquids are the same thing as processed dry consumer-grade gas. Which of the statements given above are correct?
Statements 1 and 3 are correct: wet natural gas contains associated light hydrocarbons, and processing removes water vapor and nonhydrocarbon compounds. Statements 2 and 4 are incorrect because separated natural gas plant liquids are different from the processed dry consumer-grade gas.
Q5With reference to hydrogen as an energy carrier and fuel, consider the following statements: 1. Hydrogen is stored in water, hydrocarbons such as methane, and other organic matter. 2. Hydrogen can be produced from water through electrolysis, while steam reforming reacts high-temperature steam with natural gas. 3. A fuel cell electric vehicle running on hydrogen emits only water vapour and warm air as exhaust. 4. The energy in 1 kilogram of hydrogen gas is about the same as the energy in 2 gallons of gasoline. Which of the statements given above are correct?
Statements 1, 2 and 3 are correct. Statement 4 is incorrect because the cited equivalence is 1 kilogram of hydrogen to about 1 gallon of gasoline, not 2 gallons.
You've seen 5 of 87 sample questions
Unlimited practice on Hydrocarbons & Energy comes with the RAS Test Series + Practice pack or Gate Pass.
More questions
6Consider the following statements: 1. The National Policy on Biofuels, as amended in 2022, advanced the 20% ethanol blending target to ESY 2025-26 from 2030. 2. Public Sector OMCs achieved 10% ethanol blending in petrol in June 2022. 3. The Government has already taken a decision to raise ethanol blending beyond 20%. 4. The Roadmap for Ethanol Blending estimated that 20% blending in ESY 2025-26 would require about 1016 crore litres of ethanol. Which of the statements given above are correct?
7With reference to India's hydrocarbon exploration architecture, consider the following statements: 1. OALP permits investors to carve out blocks of their choice by using exploration and production data available in the National Data Repository. 2. OALP Expressions of Interest are encouraged in three annual windows, not in a single permanent window without cut-off dates. 3. HELP retained NELP's production-sharing contract model instead of moving to revenue sharing. 4. The Directorate General of Hydrocarbons operates as the upstream technical regulator under the Ministry of Petroleum and Natural Gas. Which of the statements given above are correct?
8With reference to the scope of natural gas, consider the following statements: 1. Natural gas includes compressed natural gas. 2. Natural gas includes gas recovered from gas hydrates. 3. Natural gas includes helium occurring in association with hydrocarbons. Which of the statements given above are correct?
9With reference to the Open Acreage Licensing Programme (OALP) and India's offshore exploration architecture as discussed at the April 18, 2026 Data Driven Exploration Conference, consider the following statements: 1. OALP allows exploration and production companies to carve out and bid for blocks of their choice on a year-round basis. 2. The Directorate General of Hydrocarbons (DGH) operates as the upstream technical regulator under the Ministry of Petroleum and Natural Gas. Which of the statements given above is/are correct?
10Consider the following statements about natural gas: 1. Natural gas is primarily methane with traces of ethane, propane and butane. 2. Natural gas is used for power generation and as feedstock for fertilizer plants. 3. Natural gas is heavier than air. 4. Natural gas is a naturally occurring gaseous hydrocarbon. Which of the statements given above are correct?
11Consider the following statements about PNG and LPG: 1. PNG means Piped Natural Gas. 2. LPG mainly consists of propane and butane. 3. PNG is mainly propane supplied in cylinders. Which of the statements given above are correct?
12With reference to propane or LPG as a fuel, consider the following statements: 1. Propane is also known as liquefied petroleum gas or propane autogas. 2. Propane is a three-carbon alkane gas, C3H8, stored under pressure as a liquid. 3. Propane is produced only as a primary refinery product and not as a byproduct of natural gas processing. 4. HD-5 vehicle propane must contain at least 95% propane. Which of the statements given above are correct?
13With reference to compressed bio-gas and SATAT, consider the following statements: 1. CBG can be produced from biomass and organic waste sources, including paddy stubble, and has properties similar to commercially available natural gas. 2. SATAT was launched on 1 October 2019 to promote CBG as an alternative green transport fuel. 3. The National Biofuels Coordination Committee approved a phased CBG Blending Obligation for CNG and PNG segments on 24 November 2023. 4. Under that phased obligation, mandatory blending starts from FY 2024-25. Which of the statements given above are correct?
14With reference to India's ethanol-blending roadmap, consider the following statements: 1. The National Policy on Biofuels, 2018 originally gave indicative targets of 20% ethanol blending in petrol and 5% biodiesel blending in diesel by 2030. 2. The 20% ethanol-blending target was advanced from 2030 to Ethanol Supply Year 2025-26. 3. The roadmap estimated 1,016 crore litres of ethanol requirement for the ESY 2025-26 20% target. 4. Oil Marketing Companies achieved 12% ethanol blending during ESY 2021-22. Which of the statements given above are correct?
15With reference to India's Hydrocarbon Exploration and Licensing Policy (HELP), consider the following statements: 1. HELP provides a uniform licence for exploration and production of all forms of hydrocarbon. 2. HELP includes an open acreage policy. 3. HELP is based on production sharing only and rejects revenue sharing. Which of the statements given above are correct?