Mahanagar Gas Interview Questions, Process, and Tips for Experienced

Bank system in CNG cascade involves multiple banks connected in a series to provide continuous supply of CNG.

• CNG cascade system typically consists of multiple high-pressure cylinders connected in a series.

• Each bank in the cascade is filled with CNG at different pressure levels.

• The banks are interconnected to ensure a continuous and reliable supply of CNG.

• Pressure regulators are used to control the flow of CNG between t...read more

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

• Reciprocating compressors use pistons to compress air.

• Rotary compressors use rotating vanes or screws to compress air.

• Screw compressors use intermeshing screws to compress air.

• Centrifugal compressors use a rotating impeller to compress air.

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

GCR stands for Gas Compression Ratio and inter distance refers to the spacing between equipment at a CNG station.

• GCR is the ratio of the volume of gas before compression to the volume after compression.

• Inter distance between equipment at a CNG station is important for safety and efficient operation.

• For example, the inter distance between a compressor and a storage tank should be sufficient to allow for proper ventilati

Applicable standards for CGD include ISO 9001, Six Sigma, and Lean principles.

• ISO 9001: Quality management system standards

• Six Sigma: Process improvement methodology

• Lean principles: Eliminating waste and improving efficiency

Seeking new challenges and growth opportunities in a more dynamic work environment.

• Looking for career advancement

• Seeking new challenges and responsibilities

• Interested in working in a more dynamic and fast-paced environment

Yes, I am willing to work with other departments to achieve common goals and support the overall success of the organization.

• I believe in collaboration and teamwork to achieve common goals.

• I am open to learning new skills and working in different areas.

• I understand the importance of cross-departmental communication and coordination.

• For example, in my previous role, I collaborated with the marketing team to launch a suc

Yes, I am open to relocation for the right opportunity.

• I am willing to relocate for career growth and new experiences

• I have relocated in the past for job opportunities

• I understand the importance of being flexible and adaptable in a new location

Safety rules and government requirements are in place to protect human life and prevent accidents.

• Safety regulations are enforced by government agencies such as OSHA and EPA

• Employers are required to provide a safe workplace and train employees on safety procedures

• Safety equipment such as personal protective equipment (PPE) must be provided and used

• Emergency response plans must be in place and regularly practiced

• Violati...read more

Hydraulic tests are used to check the strength and integrity of pipes and vessels under pressure.

• Hydrostatic test is a common type of hydraulic test used to check for leaks and structural integrity.

• Formula for hydrostatic test pressure is P = 2St/D, where P is pressure, S is stress, t is wall thickness, and D is diameter.

• Another type of hydraulic test is pneumatic test, which uses air or gas instead of liquid.

• Formula f...read more

Liquid and nitrogen gas differ in their physical state and boiling points.

• Liquid nitrogen is nitrogen in a liquid state at an extremely low temperature of -196°C.

• Nitrogen gas is a colorless, odorless gas that makes up 78% of the Earth's atmosphere.

• Liquid nitrogen is commonly used in cryogenics, food preservation, and medical procedures.

• Nitrogen gas is used in various industries such as electronics, food packaging, and ...read more