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Maruti Suzuki Graduate Engineer Trainee Interview Question (student candidate)

I interviewed in Gurgaon, Haryana (India) and was asked:
"why the torque curve starts to fall after a certain RPM in the torque curve?"
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Answer

Part of a Graduate Engineer Trainee Interview Review - one of 41 Maruti Suzuki Interview Reviews

Answers & Comments

0
of 0
votes

because of less time for air intake.

- Interview Candidate on Jun 29, 2012
1
of 1
vote

After certain speed, volumetric efficiency of engine drops down and engine suffocates as required amount of air doesnt enters combustion chamber, hence torque curve drops.

- Satyavrat mane on Oct 20, 2012
0
of 0
votes

If a piston moves slowly
from top to bottom with
the inlet valve open, we
would expect the cylinder
to be full of charge at
atmospheric pressure.
This is 100% volumetric
efficiency. Unfortunately,
as engine speed increases
the time available to fill the
cylinder reduces. At 6000
rpm the induction stroke
takes 1/200 of a second and
this affects the volumetric
efficiency.

- rahul on Nov 19, 2012

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