Qatar Petroleum Hydraulic Technician Interview Questions and Answers

Types of compressors include reciprocating, rotary, centrifugal, and scroll compressors.

• Reciprocating compressors use pistons to compress air

• Rotary compressors use rotating mechanisms like screws or vanes

• Centrifugal compressors use a rotating impeller to create centrifugal force

• Scroll compressors use two interleaving scrolls to compress air

• Examples: Ingersoll Rand reciprocating compressor, Atlas Copco rotary compressor...read more

Designing equipment to remove gas and oil from the ground involves considering factors like extraction methods, safety measures, and environmental impact.

• Consider different extraction methods such as drilling, hydraulic fracturing, or steam injection

• Include safety measures like blowout preventers, emergency shutdown systems, and gas detection sensors

• Address environmental impact by implementing measures to prevent spill...read more

CNG stands for Compressed Natural Gas.

• CNG is a type of fuel that is used as an alternative to gasoline or diesel.

• It is composed mainly of methane gas and is stored under high pressure.

• CNG is commonly used in vehicles, especially in public transportation.

• It is considered a cleaner and more environmentally friendly fuel compared to traditional fossil fuels.

• CNG can be used in both spark-ignition and compression-ignition e

Wet leg filling involves filling a differential pressure transmitter's wet leg with liquid for accurate measurement.

• Identify the wet leg location and ensure safety protocols are followed.

• Use a suitable filling liquid, typically water or a specific process fluid.

• Connect a filling line to the wet leg and open the valve to allow liquid flow.

• Monitor the filling process to avoid overfilling and ensure proper liquid level.

• Ch...read more