National Institute of Industrial Engineering (NITIE) Placement Interview Questions

Estimate the no. of flights handled by Mumbai Airport.
As a preliminary question, I iterated what was asked and specified on aspects like the time scope (day), type of day (weekday, weekend), time of the year (is it a holiday season), type of flights (domestic/international). I started off with stating that there are 2 runways but only 1 is used at a time and asked if I can go on with this data.

I divided the day into peak and non-peak hours and stated the assumed runway utilization for both periods. I assumed the time between two flights to be 2 minutes. The interviewer asked me the rationale behind it. I told him how the flight take-offs are constrained by the landing and take-off time of the previous flights. He was convinced by the provided rationale. Finally, I concluded by calculating the total no. of flights. I was thinking out loud, so he’s aware of what I am doing all along the interview.

Work experience in Oil and Gas.

Different scenarios regarding the supply and demand, refineries and terminal locations and asked me the effect on lead time, inventory, safety stock etc.

A manufacturing client which is facing difficulties on meeting its promised lead time.

Why consulting? And about the structure of PRTM.

An Oil and Gas firm is unable to deliver the LPG cylinders on time in a particular region in South India.
I stated the assumed structure of an oil and Gas firm and asked, if there had been any recent changes to the company-dealership structure around that region. He replied that the delivery issue is not seasonal and exists for a long time. I suggested some of the possible root causes and suggested some recommended solutions to address them.