Junior Mechanical Engineer interview questions

I graduated with a BTech in mechanical engineering from an Indian university three years ago. Joined an Omani consultancy as a graduate engineer; for the past two years I've been working on HVAC design for residential and small commercial projects under a senior engineer's supervision. My work covers cooling load calculations, equipment selection, ductwork design, and producing tender drawings. I'm currently studying for OEC registration. Software: HAP, AutoCAD, and basic Revit MEP.

Inputs: building geometry, orientation, occupancy, equipment loads, infiltration assumptions, design conditions (Omani peak temperatures, indoor setpoints). Software: HAP. Set up the building model: zones, walls, roof, glazing with proper U-values, internal loads schedule. Run the calculation for peak cooling: get the equipment sizing data plus the diversified load. Cross-check against rules of thumb to make sure the number's in the right range (e.g., per square metre for the building type). Output: equipment selection brief for senior review.

Cooling design temperatures are high: 46-50°C for the interior, 42-44°C for coastal areas. Humidity matters in coastal locations and affects equipment sizing for latent load. Solar gain is significant; design considers shading and glass selection. Sandy and salty air affects equipment selection: corrosion-resistant materials for coastal projects. Ramadan working hours affect occupancy schedules. I'm still learning these nuances from my senior; experienced engineers understand them intuitively while I have to look up specifics.

Air volumes determined from the cooling load and zone temperatures. Duct sizing balances velocity (acoustic limits, friction losses) and dimensions (fit within available ceiling space). I use ASHRAE friction charts or software for the sizing. Aspect ratios kept moderate (rectangular ducts shouldn't be excessively flat). Fittings included in the static pressure calculation. Output: duct layouts on drawings with sizes and a duct schedule. Senior engineer reviews before issue; my sizing is usually within 10% of his check, which is acceptable.

I'm respectful of the cultural norms I'm still learning. I listen more than I speak in mixed groups. I'm punctual and professional in dress. I learn names and greet people properly. I respect prayer times and Ramadan adjustments. With Omani colleagues I'm patient with the relationship-building that takes longer than I was used to in Bangalore. The GCC workplace has its own rhythm; I try to absorb it rather than impose what I knew before.

For a junior mechanical engineer role at this stage in Oman I'd target OMR 600 to 800 total package depending on the consultancy and project portfolio. Roles with strong mentorship and learning opportunities are worth slightly less in basic pay because the career investment is real. I'd value continued professional development support, especially toward OEC registration. I'm on 30 days' notice. Beyond pay I care about the project quality and the senior engineers I'd be working under; this is the stage of career where the people matter most.