Just took this test, it is a pre-requisite for most of the trades jobs. 55 out of 68 is the average. Post your results.
https://pdfhost.io/v/3SSu9uQ25_273162672BennettMechanicalComprehensionTest3
Bennett Mechanical Comprehension Test
Just took this test, it is a pre-requisite for most of the trades jobs. 55 out of 68 is the average. Post your results.
https://pdfhost.io/v/3SSu9uQ25_273162672BennettMechanicalComprehensionTest3
Answer key: https://wellbrookfoundation. tw/aptitudetest/test3/test3-1.html
incredibly safe and non-sketchy looking links you have there, especially since you had to bypass the spam filter...
4chink blocks Taiwan (ROC) .tw domains, newhomosexual
66
>33
>46
I caught all the trick questions
I got 9
That’s 90%, so it’s good for an A-
100% correct
Its literally the same question over and over
If you have a basic understanding of leverage, its all common sense.
>55 out of 68 is the average
Given what's in that test, this is a pretty depressing statistic.
Well in all fairness, there’s probably a good 3%-5% of female test takers whose brains do not understand space and physics like that. If you had a feelings test that 80%+ of women could ace, it would only take a few men to throw off the average.
this wasn't even funny.
It’s not supposed to be funny. Try teaching a girl math and physics, they have a hard time grasping the concepts so their only hope is to just memorize equations. But then there’s other empathy shit chicks are good at and dudes can’t do.
I gotta dig out the old ones
If you ever talked to chicks, you would understand. Arts gays are similar. Some peoples’ brains just don’t work in the mechanical sense and they’re horrible drivers.
I think it’s supposed to be funny because of how ironic the post is.
You know the ole “complain about other unknown entities not being mechanicals inclined, while you know I’m not mechanically inclined at all myself!”
I agree, it doesn’t really land though
I only missed two.
If someone wants to explain to me how the frick the hook is supposed to get lower, be my guest. I'm convinced it's either worded or drawn poorly, because it looks like it should stay the same height to me.
The second is ambiguous for a number of reasons. Any loose load could shift to the back, the drawing is slightly skewed toward the rear wheel, and pulling on the line will induce a slight torque if it's not in line with the center of gravity (which it clearly isn't). So eat my ass, that's a bad question.
The hook is one I guessed on, it doesnt make sense to me either
The first question is shittier than the second because who the frick knows how the other end is set up. But assuming the upper return end of the hook line is actually tied to the trolley, the hook should lower
I just assumed the cart is empty, and pulling the line will induce more downforce on the upslope wheels
The answer on the first one has a mistake. You can see that the first option is written as part of the question, and the last option is repeated. At least that's what I think happened.
The trolley answer should be A. On level ground the center of mass is midway between the wheels but not on the ground. On the incline the vertical line through the center of mass is closer to the back wheel. If a block can't slide, there will be an steepness beyond which the upper edge lifts off and the block rolls down. C would be right if the center of mass is the same distance from the track as the rope.
The upslope wheels are a pivot point and any pulling force on the rope/whatever it is will decrease the downforce on the downslope wheels. The actual literal answer depends on the exact weight and speed that the rope is being pulled with, if at all.
I assumed the cart was held stationary by the rope andthe force was equal
If one only moved the hook itself, it would go up.
>https://wellbrookfoundation. tw/aptitudetest/test3/test3-1.html
I missed these two, 66 (read the 3 as a 5 for the shorter lever), and 13. How is sawdust a better insulator than air? Air is a worse thermal conductor than any solid. Is it convection and radiation that are moving the heat in that case?
i have no idea what question 16 is showing me
i said 35 hook will stay the same and i stand by it
i don't agree with 41 either
53 i don't agree with, on a slope the material in the trolley will be over the back wheel
63 i think is kind of bullshit, if its pedantry about the weight of air pressure then they should also account the friction in the straw, so i wouldn't be confident to answer that one.
everything else i got the answer key answer.
>i have no idea what question 16 is showing me
It's a Pitot tube with water in it. Faster the water is moving toward the inlet, the higher it gets pushed up the tube.
>i said 35 hook will stay the same and i stand by it
Same, that's drawn really badly or flat-out wrong.
>i don't agree with 41 either
Pulling it by the tip will cause the boat to turn toward the bank. Pulling it at just the right point along the side balances forces such that it stays straight.
>53 i don't agree with, on a slope the material in the trolley will be over the back wheel
That one is also kind of BS.
>63 i think is kind of bullshit, if its pedantry about the weight of air pressure
It's not. It's the weight of the water. The pressure difference at two ends of a siphon is dependent on the height difference at the two ends, at least until the height difference or flow rate/fluid friction in the tube becomes very large.
>It's a Pitot tube with water in it.
thanks
>Pulling it at just the right point along the side
i'll take your word
>It's the weight of the water
the weight of the water in the siphon? i didnm't consider that lol guess im moronic.
If the trolley moved they could have said so. Before moving you have a right triangle x2=b2+h2. After moving far enough you have another one with (x+y)2=(x-y)2+(2b)2. It follows that x-y < h so it goes up. Maybe they tried to answer "what happens to the hook when the ends of the rope on the left side move to the right?", which is too many words.
If it is not moving then you probably don't need any kind of geometric calculations, it is just common sense that it will go up. Even if it is not a perfectly right triangle and the right side is slightly longer, it will eventually pick up the slack and force the hook to move up. Maybe the key here that you are supposed to figure out that the trolley cannot move based on the drawing and how the pulleys are connected/interlocked?
i agree with you that in that circumstance the hook would act as you say
and i accept that re-reading the question it does mention only the hook and not the trolley.
but i struggle to accept that that was the intention of the question.
it is so obtuse that i feel i must give you credit for even considering this as a solution.
>55 is the average
Frick me, is the average person really that stupid? I got 67 no problem, only thing I got wrong was the pendulum one of the girls on a swing because I didn't think properly and see that the heights were different.
Honestly, this is like year 12 high school physics at absolute latest, though at least in that class, you'd be working this shit out and getting actual values instead of just "which one is bigger or smaller?" Honestly, you should be able to intuitively just know this stuff already
Also the chinks who wrote this paper can't spell and it's in broken chinglish the whole way through.
Is it Americans who are dumb or is it the Chinese?
Education now vs the late 70s is drastically different
and kids used to play with stuff like this in the 60s
instead of playing fruit ninja on a phone.
Any kid who enjoyed playing with erector sets in the 60s would have went hog wild with the internet nowadays.
The kids who only play fruit ninja werent going to suddenly be master fabricators just because you gave them an erector set back in the day.
There are just as many kids building computers in minecraft, or building insane factories in Factorio or Satisfactory
>got wrong was the pendulum one of the girls
lmao. moron.
>Is it Americans who are dumb or is it the Chinese?
Well you apparently.
In the 60s when this was written, people learned to read in school and then immediately went out into the work force.
They didn’t go to high school, they didn’t pass 7th grade.
They a lot of times they had to be the man of the house and care for their mom and siblings.
Things that seem intuitive and common sense to you come from having a basic high school education.
You aren’t born with innate knowledge of anything.
People take for granted the baseline of education they really have.
My grandfather could barely read. He had to join the workforce young. Not an uncommon situation
>Things that seem intuitive and common sense to you come from having a basic high school education.
High school doesn't cover this stuff lmao. It covers calculating geometry and trig, but basic curriculum has nothing to do with teaching spatial awareness. As long as numbers aren't involved, I could figure this out as an 8yo.
I'm not american so this isn't an american education issue
>High school doesn't cover this stuff lmao
Yes, it literally does.
Its all just basic physics you learned in Junior High School. You learned Trig in school but somehow didnt learn what leverage was?
No 8 year old without prior knowledge is going to figure out most of these, itll be pure guesses.
Only the most adept tinkerers who have experience tinkering on things.
With that said, an 8 year old who watched a 10 minute youtube video on basic physics could figure out most of them, even those with horrible "spatial awareness"
>Its all just basic physics you learned in Junior High School. You learned Trig in school but somehow didnt learn what leverage was?
I already knew what leverage was when I was 5. How else do you put 1/4 of a ruler off the edge of a desk and flip an eraser across the room? All of these questions are easily demonstrable physics without the need for book knowledge, assuming you did things other than play videogames as a kid.
>No 8 year old without prior knowledge is going to figure out most of these, itll be pure guesses.
I went into construction and enjoy building because I have inherently good spatial awareness. I can guess balance points and other structural weaknesses just by looking. This comes at the cost of aural learning. I can't listen and retain information, I have to visually see it
>learning disability
> relies on instinct
> thonks anyone who doesn’t have “instinct” is flawed
>has to double down on this ridiculous fantasy because he can’t learn shit like normal people.
You probably can’t follow specs for shit, and are hell to work with.
>learning disability
I learn incredibly fast, but why would you babble on in a classroom when you could just show someone? Picture says a thousand words etc.
>thonks anyone who doesn’t have “instinct” is flawed
We all have eyes. How can you not just look and see and inherently understand?
>You probably can’t follow specs for shit, and are hell to work with.
I'm one of the few who can follow specs and blueprints, despite rarely ever spending time looking at them. I think architects and engineers are overrated. Give me half their training and I'll style on them easily
>All of these questions are easily demonstrable physics without the need for book knowledge, assuming you did things other than play videogames as a kid.
Pic related was fun and educational.
Also 43 "which path is steeper" is either testing depth cue or, a willingness to apply the principle of indifference in their absence. With most other questions, I can make an analogy to something I've seen first hand, but not for these: 28 Kepler's law,29&51 Kirchhoff's laws,33&38 lunar atmosphere,48 Snell's law. I wish I had learned those first hand. Jean Meeus' Astronomical Algorithms book uses Kepler's law implicitly or not at all.
>I went into construction and enjoy building because I have inherently good spatial awareness. I can guess balance points and other structural weaknesses just by looking. This comes at the cost of aural learning. I can't listen and retain information, I have to visually see it
Holy Cope
I’m 50, graduated from a “public Ivy League” college, and I easily missed 8 of these. So I’m guessing the “average” person would score way lower than 55. 55 is probably the average of people who 1) are in a field that requires any of this knowledge 2) most likely had seen a copy of it, or at least knew what type of questions to expect.
I’d bet the average person would have a much lower score. It’s not about the quality of modern education either, it’s about the focus.
I got the example question wrong, apparently. If the two men are of equal height and walking steadily then it shouldn't matter where between them the rock is hanging.
if you want an explanation look up moments in mechanics, if you take moments at each of the points where the stick transfers load to the men you will see that the man closest to the weight bears the larger force.
perhaps a more intuitive way to think about it would be imagine the weight close enough to the guy at the front that it is on his shoulder directly. the man at the back is taking the weight of only the stick at this point. the weight at the back is the opposite situation and in the middle is equal. in between is a gradient of force on each man
Thank you for making your point without calling me a moron or a zoomer. I know that took restraint.
not at all my friend, this is a nice board imo.
>>13
>I guessed sawdust but it is not obvious which one is a better insulator
sawdust is better than nothing. insulation traps small pockets of air. static air is a good insulator but allowed to move it creates convection currents.
>>25
>Not obvious at all. What does "splash more" mean? Farther from the spoon? Why is it A not B?
i agree this is very difficult or impossible to intuit, something you just have to have tried and experienced. although by the shape of the spoon and told one must splash more i would imagine many would pick the upturned spoon as the angle of the spoon is against the flow.
>>34
>I guess bigger wheel is a smoother ride? Not obvious at all.
for any uneven surface, imagine different sized holes in the ground, a larger wheel will roll over more (smaller) holes that a small wheel which would fall into them. think of the larger wheel as being able to "average out" more of the ground
>13
I guessed sawdust but it is not obvious which one is a better insulator
>25
Not obvious at all. What does "splash more" mean? Farther from the spoon? Why is it A not B?
>34
I guess bigger wheel is a smoother ride? Not obvious at all.
>35
I thought it'd stay the same, can't really see all the details
>36
I don't get it. Either way seems the same
>38
bullet will obviously travel farther but they messed up the answer
>39
no idea what is going on there
>41
wtf? why is it A? if you pull it by the side, won't it turn sideways and increase the resistance? should attach to the nose i think
>46
No idea what those pipes are doing
>50
No idea, why is it A?
>52
Why is A lifted first? Because it is lighter?
I thought they would move both at the same time
>55
Why equal? I thought A goes down faster since it is a shorter path. Gravity is acting on both of them both B is a longer path since it is thrown horizontally and then it gradually starts falling down.
>59
No idea. Both seem the same to me.
>>35
>I thought it'd stay the same, can't really see all the details
agreed
>>36
>I don't get it. Either way seems the same
my interpretation of this was that the diagonal members were rope or wire, however even if they were solid beams there is an extra difficulty in being under compression that they must not deflect outward, rather than just under tension where its down to just the yield stress
>>38
>bullet will obviously travel farther but they messed up the answer
yes, A.
>>39
>no idea what is going on there
bottom left is a water boiler and above it a radiator. again we are looking at convection current but this time in water.
>>41
>wtf? why is it A? if you pull it by the side, won't it turn sideways and increase the resistance? should attach to the nose i think
if you think about something like a long canal boat, of you pull it from the very back, the back would swing towards the towpath. presumably then there is a gradient where pulling somewhere in the middle of the boat guides it relatively straight. there is still a vector component drawing it towards the path but the boat isn't turning into it as much.
>there is a gradient where pulling somewhere in the middle of the boat guides it relatively straight.
Is there any indication that the canal is curving to the left (CCW) so the boat would pull to the left if let float without steering? In that case I would agree that pulling it from B would correct the leftward pull. Otherwise, if the canal is straight and water flows perfectly straight, pulling by the bow would be the best option to keep it moving straight wouldn't it?
>from B
I mean A of course
just to make sure we are on the same page, we are pulling the boat by standing on the path, not from a boat in front of the boat centrally.
Ohh damn, yeah that makes more sense.
I think if you pull from B, you get more leverage to turn the boat and then it ups the resistance with the water as you attempt to go straight down the canal. A is still going to want to pull the boat towards the wall I guess, but less likely to turn the boat sideways. So in the very near term they will be about the same, but soon after that, B would be much harder to pull.
>if the canal is straight and water flows perfectly straight, pulling by the bow would be the best option to keep it moving straight wouldn't it?
No, as you pull the rope, the bow would turn towards you as there is a lateral force beyond the point where the hull meets the waterline. You'd have to tie more or less perpendicular to where the waterline is to get the boat to float straight
>If A really was better, wheelbarrows would have more bucket in front of the wheel.
Having more bucket over/in front of the wheel would both limit wheel size and cause you to lose control of the load going down a slope.
OK, turns out I misunderstood the question. I thought the boat is being tugged by a vessel or a person in front of it, not pulled from the shore. Duh. I was wondering why that PATH was in the picture but didn't make the connection. Is this such common knowledge that you pull the boat from the shore along the waterway? Then of course A makes sense.
>Is this such common knowledge that you pull the boat from the shore along the waterway?
I imagine this is a mooring situation where you're pulling the boat to a dock or something
t. worked at a marina for 5 months
Even then, depends on the weight of the cart, the rope, and the exact angle of the slope. Semantics, but you're most likely right given how low the cable/rope is attached to the cart.
>Is this such common knowledge that you pull the boat from the shore along the waterway?
the clue is "canal" and "path"
in the olden days we used to move cargo by canal barge, the barges were powered by horses pulling them along the path which is still referred to as a towpath when next to a canal.
Pretty sure A makes more sense.
The middle of the canal moves faster than the sides so the boat will constantly try to turn CW because it experiences more drag force on the starboard side. An anchor point at A will cause a CCW moment, but the components of force forward and perpendicular will be closer in magnitude than an anchor point at B, so it should be easier to pull the boat up the canal without pulling it toward the path compared to B.
I'm still not 100% sure though and I'm a mechanical engineer qualified to drive twin bucket waterjet craft lol
The boat is pulled from the path.
>>46
>No idea what those pipes are doing
the left pipe allows water to escape, the right pipe allows air in to replace lost water. A the air pipe blocks quickly, B the water pipe is deep into the vessel and cant allow more out, C allows all the water to flow.
>>50
>No idea, why is it A?
the hinges are on the left, in A the diagonal member is under tension not compression.
>>52
>Why is A lifted first? Because it is lighter?
>I thought they would move both at the same time
yes because it is lighter. if the man was lighter than either block he would pull himself up (lighter than half the weight of any block because of the pulley)
>>55
>Why equal? I thought A goes down faster since it is a shorter path. Gravity is acting on both of them both B is a longer path since it is thrown horizontally and then it gradually starts falling down.
the horizontal component of motion is of no consequence, the motion of each is a vector sum of downward motion to gravity and horizontal of being thrown, each are independent. in the same way as Q2
>>59
>No idea. Both seem the same to me.
the mud in b takes a curved trajectory which is unlikely unless acted on by another force it cannot change direction
I did not get 100% and I feel like a moron now. Shit. What is there for me now that I am confirmed moronic by a really old moron test?
I don't get the mining cart one. The center of gravity of the cart is presumably in the middle, so if you continued to tilt it, the CG would be directly over the rear wheel, at which point the front wheel obviously takes no weight.
Most of these questions are absurdly easy. I imagine that back in the day when they beat you for not knowing the answers, kids with stress issues would probably not do well on this test. But I'll admit my pulley knowledge is pretty rusty, so I had to think through the pulley questions.
Question 40 bothers me though. It's just not a good question.
It seems to be asking which is made from a denser material, but it's worded badly. "Heavier" just isn't useful when talking about buoyancy; weight is just downward force. An air craft carrier weighs over 90 thousand metric tons, it's made of metal, and it (should) float because it's less dense than the water surrounding it. It's more complicated than this with water displacement etc, but the long and short of it is that if you made coins out of the same metal as an air craft carrier, they'd sink despite being a tiny fraction of its weight. You can make something that is "made of heavier material" float by making it hollow or into a foam or something and thus less dense overall.
B is apparently smaller by volume and appears to be sinking, while A is larger by volume and appears to be floating. But I don't know if A is just hollow and B is solid. They could be made of the same material and constructed differently. They could be made of different materials and constructed the same way. They could be made of different materials and be constructed in different ways. I mean, I got it "right," but I got it because I read it and said to myself "oh this one was written by a dumbass, I know what they're trying to ask."
As a child, questions like this legit got me into arguments with teachers because I was so worried about misinterpreting what the question meant.
I would agree with you if it just said "heavier", but I think "heavier material" is pretty clearly talking about density.
material means the matter that something is made from as opposed to its form
a solid cube (form) made from steel (material) sinks in water
a hollow cube (form) made from steel (material) can float in water
I agree. I thought A was hollow based on the graphic.
Woah
This thread is an eye-opener
Looks like I'll be asking every tradie "Did you pass highschool physics?" from now on
I personally didn't pass highschool physics but I know the answers to all of these. I can look at almost any given situation and figure out the relative physics, but if you ask me to calculate something exact with more than 2 formulas, you've lost me
obligatory:
"A" is less stable. Applying a force upwards varying between 5 and 15 lb is easier than have to resist a force of -5 and 5 lb. If A really was better, wheelbarrows would have more bucket in front of the wheel.
The question is poorly written because it can be interpreted in several ways depending on the conditions that you will encounter while moving the wheelbarrow. "A" is probably better for heavier loads over longer distances on smooth surfaces.
There are actually several different types of wheelbarrows and the type intended to move the heaviest loads usually try to center the load over the wheel--- in so doing, they sacrifice control and utility on rough or uneven surfaces.
If you do B if feels heavier and the rock might slide forward anyways.
>25
What does “splash more” mean.
B> 100% of water is splashing
A> some of the water will not splash
26)
Is this about insulation material, or the size of the animal producing heat? Answer is same, but curious.
33) isn’t the answer “neither”?
48) never occurred to me that light moved slower through glass, and that is why it refracts. I knew it happened but not why.
53) Tricky. From experience, material will shift putting more weight at the back. Intuitively the front feels like it should carry more weight because it is higher. But I’m guessing physics says they are equal huh. I guess it has to do with the distance of the weight from the baseline or whatever it would be called?
56) why though? More trusses connected to each point?
57) didn’t realize there was a solid bar connecting them, thought it was a conveyor belt
59) tricky
66) took the obvious answer without looking at the fulcrum placement
67) I miss lots of these types of questions. At equal pressure a wider pipe will move more volume of water. Pressure equalizes over an area. So how is there more pressure in the smaller opening?
68) A, because that is where the cooling vents are placed, which is why my shit at the top/back of the fridge freezes.
How did the know about tilt-wing aircraft in 1940?
>https://wellbrookfoundation. tw/aptitudetest/test3/test3-1.html
56/68
Oh yeah baby I'm above average like my penis
I took this test for some temp agency. I guessed on a bunch of questions and only got like an 80 but the guy said it was the highest score he had ever seen. he wanted to put me in some shit temp to hire job though so I noped out. can I just memorize the answers in case I have to take it again?
Irving Tissue had a test like this: at least the spoon question was the same. The interviewer wanted me to change an answer on ethics test. I steal if reward exceeds risk. They want liars and the self-deluded. I know if I'm lying. But when I deliver flyers to the dumpster, I'm not stealing unless you own the flyers. You may legally own them, but because flyers get thrown out anyways, my possession implies moral ownership. I've deprived you of "customer reads the flyer", "income lost because I gave you a bad reputation" etc. But I didn't even potentially gain what you lost, so it's not morally stealing. The same casuistry allows "time theft".