SpaceX Applicants Are Asked To Solve This Question

>>8899544
I expected something harder considering their reputation for being so selective. Or is this for kids applying as interns? That would be understandable.

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>>8899544
>inches and pounds on technical document
no thanks bitches

>>8899544
I would fail, as I have no idea how long an inch is, how to use mass as a force, and I've never in my live seen the term PSIG

>>8899544
>Feel free to use any references or software you think will help you

So I just plug it all into an FEA program? Cool.

>>8899579
so this.....is the power.....of engineering.......................

>>8899582
Honestly they would probably mark your answer wrong if you didn't verify your answers with FEA. When you make a mistake in engineering, people die.

>>8899590
>verify your answers with FEA
other way around

>>8899559
>>8899564
This is basically the catch here. Also got no idea about welding.

>pounds

Will they ever learn?

>>8899564
>pounds are mass
No, imperial is retarded and the mass is in slugs, so whatever your pounds are divided by 32.2ft/s^2 i think

>>8900018
Honestly, the worst thing about imperial is going through the tables looking for tolerances

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>being such a brainlet that units are actually a problem
Not gonna make it.

>>8899544
Prove that this is a SpaceX applicant question and not a homework thread

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>>8900282
Are you retarded?

>>8900311
yes

>>8899544
literally any civil engineer can do this. Mechanicals too.

inb4 engineers are shit memes

>>8899544
Just eyeballing:
Case 1 critical failure at c and or d
Case 2 no issues safety factor .85
Case 3 non critical failure at e or f

>t physicist
Can anyone post results?

>>8899544
>using imperial on space rocket related stuff

GEEEZ, THANKFULLY THAT NEVER WENT WRONG

>>8899544

Really? Any physics undergrad can solve this in <3mins. Anyone actually been through their application process? It's gotta be more challenging and rigorous than this.. I heard attending a top school is a must.

>>8900417
>safety factor .85
>not a problem

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>>8899544
>imperial units

>>8900311
>▶Copy/pasting homework threads from Reddit

>>8899590
You're retarded.

If you cant parse an engineering problem down so you can solve it by hand, you don't understand it.

Shit I've designed 40 storey buildings by hand in an afternoon while some other retarded fuckhead spent two days ''building le fe model".

Came to the same conclusions too....

>>8900463
Good luck finding a physics grad with any knowledge of steel grades, strengths or an understanding of welds...

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>>8899544
>inches
>lbs

>>8900463
>Any physics undergrad can solve this in <3mins.
It's clearly an engineering problem. I think a physics student would spend a lot more time looking stuff up.

In any case, looking things up is the point. They're not looking for people who can only rattle off quick answers, or have a ridiculous amount of information about steel and welding memorized, they're looking for engineers who will do as much homework as necessary when faced with a real-world problem and get the right answer every time.

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>>8900417
>0.85

Seems like a rather difficult exam question on a mechanical design course. Although we weren't allowed to use software for that exam.

>>8900449
>>using imperial on space rocket related stuff
>GEEEZ, THANKFULLY THAT NEVER WENT WRONG
Using Standard put men on the moon. It's mixing in Metric that fucked things up.

Remember: Standard is descended from the standardized English system, which the French were deliberately being incompatible with when they designed the first version of Metric out of jealousy for English industrial efficiency.

Metric was anti-standardization from the start: they looked at the biggest established industrial base and chose to be incompatible with it. You can tell as well that Metric was thrown together in a rush, full of clever-sounding ideas that don't work so well in practice, while Standard developed out of sober consideration and minimal interference with established units which had emerged naturally as convenient for everyday living.

It's Metric that will be abandoned in the end, neither scientific enough nor human enough to last the ages, while Standard marches on alongside new units more convenient for specialized scientific use, like light years and AMUs.

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>>8899544
Am I getting the geometry right?

>>8902314
is this b8

>>8902356
The Apollo Program and Falcon 9 both used Standard units.

Suck it, Metric-bitches.

>>8902246
>>8900888
>>8899559
>Not being capable of using both comfortably
Don't worry, by the time your sophomore year is over you'll have a handle on them if your school's not shit.

>>8902390
I'm in my senior year and I still can't use imperial units properly. I've learnt several times but keep forgetting because I have no reason to use them except for the occasional question on an exam by an asshole professor.
The imperial system is fucking retarded and anyone that uses it should feel ashamed.

>>8902403
please tell me you're not a civil undergrad

>Wanting to be a SpaceX engineer
Lel

>>8902418
This.
>https://www.inverse.com/article/31478-spacex-settles-underpaid-workers-lawsuit-for-4-million

>>8902434
Yep. I work right next to them at KSC and all I hear are horror stories.

>>8899544
>case 1
fail at A

>case 2
fail at B

>case 3
fails everywhere.

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>>8902314
this post literally makes me regret we didn't nuke the holy fuck out of you

>>8902410
Nope, mech engineering undergrad.

>>8902218
>Came to the same conclusions too....
gives me slightly more confidence in my non-linear FEMs

>>8899544
How is this hard?
If I was an US citizen then I would have a job at FaggotX, ez.

>>8902623
git gid fgt

>>8902626
stfu retard, my backwater shithole country does not even acknowledge the existence of space.

THE WORLD IS SO FUCKING SHIT, kys.

>>8902390
is imperial units a grad level course in burgerworld?

>>8902635
no u poorfag

>>8902644
>>8902626
Stop replying to me, cock sucker.

>>8902651
get that h1b or die poor

>>8902655
YOU STUPID FUCKING RETARD... YOU CAN'T GET A H1B TO WORK AT SPACEX BECAUSE YOU NEED TO GET SECURITY CLEARANCE

ALSO US DOESN'T RECOGNISE MY FUCKING DEGREE

FUCK YOU!

>>8899544
>Feel free to use any references or software
>Document your work as you would for a real-world analysis
So screencaps of /sci/tards helping me solve it?

Nautical miles > Kilometers > Miles when it comes to measuring distance traveled and velocity.
Deal with it.

>>8902670
So you dont even have a real degree then
M8 just end yourself>>8902885

>>8902670
git gud mexicunt

>>8899544
Guesses with some order of magnitude calculations:
>1. failure at A, guessing non-catastrophic
>2. not sure if failure, but would be at B
>3. guessing it buckles

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>>8902314
This is what americans actually believe

>>8903143
all you did was provide the likely mode of failure, which is literally like 0.01% of the difficulty of the problem
literally you:
>1: probably fails
>2: no idea
>3: no idea

>>8903301
and france

How is this done? I did a chemical engineering degree and can't remember shit so I can't do it

>>8903424
babby-tier beam theory should do the trick

>>8899544
spaceX doesn't use metric

>>8903552
what that a bungled question, a statement or what?

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>>8902639
It's taught in elementary.
I fail to understand how it can be hard for people to understand.

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>>8902390
>imperial units
>sophomore
>being a burger