RAI Cement Mechanical Maintenance Engineer Interview Questions and Answers

The question covers power factor of transformer, types of DC machine, working principle of AC alternator, and DC motors.

• Power factor of a transformer is the ratio of real power to apparent power.

• Types of DC machines include DC motors and DC generators.

• AC alternators work on the principle of electromagnetic induction to convert mechanical energy into electrical energy.

• DC motors convert electrical energy into mechanical ...read more

To draw a Bending Moment diagram, one needs to determine the reactions, calculate the shear force and integrate it to get the bending moment.

• Determine the reactions at the supports

• Calculate the shear force at each section of the beam

• Integrate the shear force to get the bending moment

• Plot the bending moment diagram

Provisions checked for designing a beam/column according to IS Codes

• Cross-sectional dimensions

• Minimum reinforcement

• Maximum spacing of bars

• Clear cover to reinforcement

• Grade of concrete and steel

• Load-bearing capacity

• Bending moment and shear force

• Deflection limits

IS 456 and IS 800 are codes and provisions related to concrete and steel design respectively.

• IS 456 provides guidelines for the design and construction of reinforced concrete structures.

• IS 800 provides guidelines for the design and construction of steel structures.

• IS 456 covers topics such as materials, loads, design of members, and detailing.

• IS 800 covers topics such as material properties, loads, design of members, a...read more

Permissible stresses in concrete and steel as per IS codes.

• Permissible stress in concrete is 0.67 times the characteristic strength of concrete.

• Permissible stress in steel is 0.2 times the yield strength of steel.

• For example, if the characteristic strength of concrete is 30 N/mm², then the permissible stress in concrete would be 0.67 x 30 = 20 N/mm².

• Similarly, if the yield strength of steel is 415 N/mm², then the permi...read more

Permissible values for deflection in a structure according to IS provisions.

• The maximum permissible deflection for a structure is L/180 for live load and L/325 for total load.

• L is the span of the beam or slab in meters.

• The deflection limit is to ensure the safety and comfort of the occupants of the structure.

• The deflection limit varies for different types of structures and materials used.

• For example, the deflection lim...read more

Planning a house involves several steps from conceptualization to construction.

• Understand the client's requirements and budget

• Create a design plan and get it approved by the client

• Obtain necessary permits and approvals from local authorities

• Prepare a detailed construction plan and schedule

• Select and hire contractors and subcontractors

• Supervise the construction process and ensure quality control

• Ensure compliance with bu...read more

BTP project is a railway project aimed at improving connectivity and reducing travel time.

• BTP stands for Bangalore-Mysore Infrastructure Corridor

• It is a 111 km long 6-lane expressway connecting Bangalore and Mysore

• The project also includes the construction of a high-speed rail link between the two cities

• The main objective is to reduce travel time and improve connectivity between the two cities

• The project is expected to

Channel flow is open flow with free surface while pipe flow is confined flow with closed surface.

• Channel flow occurs in open channels like rivers, canals, etc. while pipe flow occurs in closed conduits like pipes, tubes, etc.

• In channel flow, the fluid is exposed to the atmosphere and the surface is not fixed while in pipe flow, the fluid is confined and the surface is fixed.

• Channel flow is affected by gravity and surfa...read more

Gutter is an example of open channel flow.

• Open channel flow is a flow of fluid in a channel with a free surface.

• Gutter is an open channel that carries rainwater from roofs to the ground.

• Closed pipe flow is a flow of fluid in a pipe with a closed surface.

• Examples of closed pipe flow include water supply pipes and sewage pipes.

A distribution system in a town can be explained through a drawing.

• The distribution system starts at the water treatment plant

• Water is transported through pipes to storage tanks

• From storage tanks, water is distributed to homes and businesses

• The distribution system also includes valves, pumps, and meters

• The system may also include fire hydrants and water mains

• The drawing should show the flow of water and the location of

I am a detail-oriented and motivated individual with a passion for engineering and problem-solving.

• I have a degree in Mechanical Engineering from XYZ University.

• I have completed internships at ABC Company and DEF Inc. where I gained experience in CAD software and project management.

• I am proficient in programming languages such as Python and C++.

• I enjoy working in a team and collaborating with others to find innovative

I prefer TCE over other firms because of their strong reputation and commitment to innovation.

• TCE has a proven track record of delivering high-quality engineering solutions.

• They prioritize innovation and are always looking for new and better ways to solve problems.

• TCE values collaboration and teamwork, which creates a positive and productive work environment.

• Their focus on sustainability aligns with my personal values ...read more

I was actively involved in the Counseling service and E-Club during my college years.

• In the Counseling service, I provided emotional support and guidance to students who were struggling with personal or academic issues.

• As a member of the E-Club, I organized and participated in various events related to technology and entrepreneurship.

• I also helped to promote the club through social media and other channels.

• Through thes...read more

My family background is diverse and has a mix of cultures and professions.

• My father is a doctor and my mother is a teacher.

• I have two siblings, one is an artist and the other is a software engineer.

• We come from a multicultural background with roots in India and the United States.

• My family values education and hard work.

• We enjoy spending time together and exploring new places.

TCE stands for Trichloroethylene, a colorless liquid used as a solvent in various industries.

• TCE is commonly used in dry cleaning, metal degreasing, and as a refrigerant.

• It is a potent carcinogen and can cause serious health issues if not handled properly.

• TCE exposure can lead to liver and kidney damage, respiratory issues, and neurological problems.

• The EPA has set a maximum contaminant level of 5 parts per billion for...read more