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06/06/2026
posted in Civil Engineering
by fpsstructures
Precast retaining wall systems are widely used in modern construction because they help reduce installation time, labour costs, and on-site delays. Th...
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06/03/2026
posted in Engineering Projects
by Selk
For Industrial Switchgears, VFDs, the MCBs (Miniature circuit breaker) according to IEC 60898-1 can be used satisfying the short circuit requirements...
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06/02/2026
posted in General Discussion
by Leyla Alizade
Hi! I have limited knowledge about this instrument, all information available to me is this picture, model # - M5537, that it is a Statimeter, it is...
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06/02/2026
posted in Electrical Engineering
by Anonymous Poster
If it is Form 4A (Form of Separation for LV distribution boards), does this automatically mean that rotary handles are provided on the DB door to oper...
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06/01/2026
posted in Electrical Engineering
by Selk
For emergency light fixtures,
1) Combining both the power cable and the charging cable in the same cable (Multi core) acceptable? (refer magenta line...
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05/11/2026
posted in Electrical Engineering
by Anonymous Poster
What is the minimum IP rating required for an enclosure to direct the exhaust of extremely hot gases from an internal arcing event away from personnel...
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05/11/2026
posted in Mechanical Engineering
by emmagreen
In many projects, one of the biggest cost drivers is unnecessarily tight tolerances.
For example, changing a machining tolerance from ±0.005 m...
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05/07/2026
posted in General Discussion
by HiTekRedNek
I am sure I am not the only one who has this problem:
A shut of valve for the sink(S) that has not been opened since it was installed is now stuck in...
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05/07/2026
posted in Electrical Engineering
by Selk
Do you provide dedicated undervoltage protection for low voltage motors below 100 kW?
My understanding is that, in this power range, undervoltage is...
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05/04/2026
posted in Electrical Engineering
by Anonymous Poster
Is the red rectangled area correct location for the installation of Ammeter?
This is the Electrical Star-Delta starter circuit
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05/02/2026
posted in General Discussion
by Labyguy
I recently purchased a "winter" home in Florida, it came furnished, so that was nice. In the home there's a Yamaha organ. It's in good shape, but I ca...
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05/01/2026
posted in Software & Programming
by Brave Sir Robin
You Can Put Whatever Words You Want Here
And here is the link. Not sure if this will actually work because this is a circular reference.
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05/31/2026
posted in Challenge Questions
Scenario
You are the on-call engineer for a hydrogen compressor skid. The control system has five sensors arranged in a serial telemetry chain. Each...
05/31/2026
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04/30/2026
posted in Challenge Questions
My watch is 1 second slow.
Your watch is 1.5 seconds fast.
We both agree to stand here until the show the same time again (12 hr clock)
Question 1:...
04/30/2026
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03/31/2026
posted in Challenge Questions
A service worker is tasked with replacing some fasteners that are installed on the inner ceiling of a large underground pipe.
The pipe is 12 ft in di...
03/31/2026
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