For those engineering types, what is the correct answer to this one?

C

Well actually to be pedantic it’s none of them.

Spiny Norman said:

Well actually to be pedantic it’s none of them.

That is what Speedy Jnr answered, and it was marked as incorrect.

Speedy said:

For those engineering types, what is the correct answer to this one?

quick glance i’d reckon C, even though doesn’t give the structural meat of the hollow round section

Speedy said:

Spiny Norman said:

Well actually to be pedantic it’s none of them.

That is what Speedy Jnr answered, and it was marked as incorrect.

C is the least incorrect.

Speedy said:

For those engineering types, what is the correct answer to this one?

None are correct. Tech Drawing was my best subject at school.

JudgeMental said:

Speedy said:

For those engineering types, what is the correct answer to this one?

None are correct. Tech Drawing was my best subject at school.

C would be correct if it didn’t have the holes shown nor the line inside the shaded area.

I agree with SN and JudgeMental.

The Rev Dodgson said:

I agree with SN and JudgeMental.

+1

The Rev Dodgson said:

I agree with SN and JudgeMental.

+1
Although C is correct except for the holes, the lines separating the hatching are fine in a weldment but not in a one piece casting.

Peak Warming Man said:

The Rev Dodgson said:

I agree with SN and JudgeMental.

+1
Although C is correct except for the holes, the lines separating the hatching are fine in a weldment but not in a one piece casting.

Yep, I was presuming a casting.

The Rev Dodgson said:

I agree with SN and JudgeMental.

Not something you see everyday.

sibeen said:

The Rev Dodgson said:

I agree with SN and JudgeMental.

Not something you see everyday.

I agree with sibeen.

sibeen said:

The Rev Dodgson said:

I agree with SN and JudgeMental.

Not something you see everyday.

At least I didn’t have to agree with sibeen as well :)

party_pants said:

sibeen said:

The Rev Dodgson said:

I agree with SN and JudgeMental.

Not something you see everyday.

I agree with sibeen.

I’m loving this. :)

transition said:

Speedy said:

For those engineering types, what is the correct answer to this one?

quick glance i’d reckon C, even though doesn’t give the structural meat of the hollow round section

definitely C, even the bolt holes in the mounting plate or whatever as indicated conform with the rest of drawing, consistent that way, unfilled areas, it’s the minimum required of the three images that provides everything needed, they are a set of drawings

transition said:

transition said:

Speedy said:

For those engineering types, what is the correct answer to this one?

quick glance i’d reckon C, even though doesn’t give the structural meat of the hollow round section

definitely C, even the bolt holes in the mounting plate or whatever as indicated conform with the rest of drawing, consistent that way, unfilled areas, it’s the minimum required of the three images that provides everything needed, they are a set of drawings

this is incorrect.

transition said:

transition said:

Speedy said:

For those engineering types, what is the correct answer to this one?

quick glance i’d reckon C, even though doesn’t give the structural meat of the hollow round section

definitely C, even the bolt holes in the mounting plate or whatever as indicated conform with the rest of drawing, consistent that way, unfilled areas, it’s the minimum required of the three images that provides everything needed, they are a set of drawings

The bolt holes wouldn’t be visible in the selected sectional view.

JudgeMental said:

transition said:

transition said:

quick glance i’d reckon C, even though doesn’t give the structural meat of the hollow round section

definitely C, even the bolt holes in the mounting plate or whatever as indicated conform with the rest of drawing, consistent that way, unfilled areas, it’s the minimum required of the three images that provides everything needed, they are a set of drawings

this is incorrect.

Yep.
For example last week I was asked to design a front wheel hub for a mate’s racing car. He gave me the broken one and I had to create a drawing from that – minus the broken part of course. This is how it looked, and you can see how the cross-section drawing goes.

And here’s the end result of the CNC machining.

Bubblecar said:

transition said:

transition said:

quick glance i’d reckon C, even though doesn’t give the structural meat of the hollow round section

definitely C, even the bolt holes in the mounting plate or whatever as indicated conform with the rest of drawing, consistent that way, unfilled areas, it’s the minimum required of the three images that provides everything needed, they are a set of drawings

The bolt holes wouldn’t be visible in the selected sectional view.

the sectional view pointing to A-A as the reference then moved to a side view in a sequence of diagrams, the empty volumes of the hollow round section are left unfilled, they extend left and right of the A-A reference, so for consistency you might put the bolt holes in there, as diagram C does, for orientation of viewing

seems consistent to me

i’d put the mounting plate bolt holes or whatever in there as they have done

but that’s just me, i’m not an engineer

transition said:

but that’s just me, i’m not an engineer

correct.

JudgeMental said:

transition said:

but that’s just me, i’m not an engineer

correct.

Hey, I am and I have no idea :)

transition said:

Bubblecar said:

transition said:

definitely C, even the bolt holes in the mounting plate or whatever as indicated conform with the rest of drawing, consistent that way, unfilled areas, it’s the minimum required of the three images that provides everything needed, they are a set of drawings

The bolt holes wouldn’t be visible in the selected sectional view.

the sectional view pointing to A-A as the reference then moved to a side view in a sequence of diagrams, the empty volumes of the hollow round section are left unfilled, they extend left and right of the A-A reference, so for consistency you might put the bolt holes in there, as diagram C does, for orientation of viewing

seems consistent to me

i’d put the mounting plate bolt holes or whatever in there as they have done

but that’s just me, i’m not an engineer

the holes are not in the plane A-A, they are forward of it. If you cut the block according to the A-A line and looked at it side-on you would not see the holes. At best the holes should be indicated by a dotted line, if at all.

party_pants said:

transition said:

Bubblecar said:

The bolt holes wouldn’t be visible in the selected sectional view.

the sectional view pointing to A-A as the reference then moved to a side view in a sequence of diagrams, the empty volumes of the hollow round section are left unfilled, they extend left and right of the A-A reference, so for consistency you might put the bolt holes in there, as diagram C does, for orientation of viewing

seems consistent to me

i’d put the mounting plate bolt holes or whatever in there as they have done

but that’s just me, i’m not an engineer

the holes are not in the plane A-A, they are forward of it. If you cut the block according to the A-A line and looked at it side-on you would not see the holes. At best the holes should be indicated by a dotted line, if at all.

behind.

party_pants said:

transition said:

Bubblecar said:

The bolt holes wouldn’t be visible in the selected sectional view.

the sectional view pointing to A-A as the reference then moved to a side view in a sequence of diagrams, the empty volumes of the hollow round section are left unfilled, they extend left and right of the A-A reference, so for consistency you might put the bolt holes in there, as diagram C does, for orientation of viewing

seems consistent to me

i’d put the mounting plate bolt holes or whatever in there as they have done

but that’s just me, i’m not an engineer

the holes are not in the plane A-A, they are forward of it. If you cut the block according to the A-A line and looked at it side-on you would not see the holes. At best the holes should be indicated by a dotted line, if at all.

the holes would be represented as dashed lines in one of the elevation drawings not in a sectional.

sibeen said:

JudgeMental said:

transition said:

but that’s just me, i’m not an engineer

correct.

Hey, I am and I have no idea :)

I’m not an engineer but I’ve done quite a lot of exacting design work.

These sorts of sectional views are expected to be precise.

“A” must be where they take the cross section that’s why the holes in the bottom plate shouldn’t appear in the cross section

Bubblecar said:

JudgeMental said:

transition said:

transition said:

JudgeMental said:

Peak Warming Man said:

party_pants said:

The Rev Dodgson said:

JudgeMental said:

JudgeMental said:

Speedy said:

For those engineering types, what is the correct answer to this one?

None are correct. Tech Drawing was my best subject at school.

C would be correct if it didn’t have the holes shown nor the line inside the shaded area.

I agree with SN and JudgeMental.

+1

Although C is correct except for the holes, the lines separating the hatching are fine in a weldment but not in a one piece casting.

Yep, I was presuming a casting.

quick glance i’d reckon C, even though doesn’t give the structural meat of the hollow round section

definitely C, even the bolt holes in the mounting plate or whatever as indicated conform with the rest of drawing, consistent that way, unfilled areas, it’s the minimum required of the three images that provides everything needed, they are a set of drawings

this is incorrect.

The bolt holes wouldn’t be visible in the selected sectional view.

So

Uh

From

The

Views

Provided

…

How do we no that there are know holes in the A-A section ¿

SCIENCE said:

Bubblecar said:

JudgeMental said:

this is incorrect.

The bolt holes wouldn’t be visible in the selected sectional view.

So

Uh

From

The

Views

Provided

…

How do we no that there are know holes in the A-A section ¿

because they would be shown on A and B.

JudgeMental said:

SCIENCE said:

How do we no that there are know holes in the A-A section ¿

because they would be shown on A and B.

¿ which been established as incorrect, so they incorrectly don’t show the holes ?

SCIENCE said:

JudgeMental said:

SCIENCE said:

How do we no that there are know holes in the A-A section ¿

because they would be shown on A and B.

¿ which been established as incorrect, so they incorrectly don’t show the holes ?

they are all incorrect. for various reasons. some presumed.

JudgeMental said:

they are all incorrect. for various reasons. some presumed.

um … the ones presumed incorrect … are they actually correct or incorrect

SCIENCE said:

JudgeMental said:

they are all incorrect. for various reasons. some presumed.

um … the ones presumed incorrect … are they actually correct or incorrect

incorrect.

JudgeMental said:

SCIENCE said:

JudgeMental said:

they are all incorrect. for various reasons. some presumed.

um … the ones presumed incorrect … are they actually correct or incorrect

incorrect.

but this is the view from below

and it’s welded in right

SCIENCE said:

JudgeMental said:

SCIENCE said:

um … the ones presumed incorrect … are they actually correct or incorrect

incorrect.

but this is the view from below

and it’s welded in right

A) Is a presumption.
B) or cast

JudgeMental said:

SCIENCE said:

JudgeMental said:

incorrect.

but this is the view from below

and it’s welded in right

A) Is a presumption.
B) or cast

¿ so of the possibilities, is there a single one that has the possibility of being correct with the definitive information given ?

SCIENCE said:

JudgeMental said:

SCIENCE said:

but this is the view from below

and it’s welded in right

A) Is a presumption.
B) or cast

¿ so of the possibilities, is there a single one that has the possibility of being correct with the definitive information given ?

C, if it is welded and there are blind holes under the web.

Good, so we’re not just dreaming… so which was the actual supposed correct answer¿ (We couldn’t see Speedy having specified that anywhere.)

SCIENCE said:

Good, so we’re not just dreaming… so which was the actual supposed correct answer¿ (We couldn’t see Speedy having specified that anywhere.)

yeah, we don’t know.

If you put the bolt holes in C the vertical lines should not be solid also the area should be hatched.
Also where in the elevation or iso does it show that the CHS is not blanked off ?

Brett

SCIENCE said:

Good, so we’re not just dreaming… so which was the actual supposed correct answer¿ (We couldn’t see Speedy having specified that anywhere.)

The “correct” answer was B

Speedy said:

SCIENCE said:

Good, so we’re not just dreaming… so which was the actual supposed correct answer¿ (We couldn’t see Speedy having specified that anywhere.)

The “correct” answer was B

do you have email addy of the teacher? I’ll send them a link to this thread.

:-)

Speedy said:

SCIENCE said:

Good, so we’re not just dreaming… so which was the actual supposed correct answer¿ (We couldn’t see Speedy having specified that anywhere.)

The “correct” answer was B

looking at that again lastnight, thought B a few times, thought nah, nah, can’t be

my non-expert opinion, giving them out free, do it every day

transition said:

Speedy said:

SCIENCE said:

Good, so we’re not just dreaming… so which was the actual supposed correct answer¿ (We couldn’t see Speedy having specified that anywhere.)

The “correct” answer was B

looking at that again lastnight, thought B a few times, thought nah, nah, can’t be

my non-expert opinion, giving them out free, do it every day

No self-respecting draughtsman would draw anything like that.

JudgeMental said:

Speedy said:

SCIENCE said:

Good, so we’re not just dreaming… so which was the actual supposed correct answer¿ (We couldn’t see Speedy having specified that anywhere.)

The “correct” answer was B

do you have email addy of the teacher? I’ll send them a link to this thread.

:-)

This is messy. The question was from the Catholic Secondary Schools Association of NSW 2020 HSC Trial Exam, which was provided to Speedy Jnr by his school for revision work. The solution stated that B was correct.

As it turned out, Speedy Jnr’s school decided to use the same question for their own HSC Mid-year exam this year, and Speedy Jnr wrote “none” beside the question, but selected B as his answer, as it would be stupid to not answer a multiple choice question.

It was marked incorrect, but the solution that his own school thought correct was not provided, or if it was, Speedy Jnr did not make a record of it (we were in lockdown by the time results were known).

I am quite upset with the faculty that teaches Engineering at the school. This is just one example of the extreme laziness they have demonstrated throughout the year, another being countless scheduled ‘on-record’ Zoom meetings that did not eventuate, which I have already made a complaint to the school about. Their response has been dismal so far. My next step will likely be a complaint to “The Department” (as they call it).

I am glad that Little Speedy has chosen very different areas of study for his HSC in 2022, just in case the poo hits the fan.

Speedy said:

JudgeMental said:

Speedy said:

The “correct” answer was B

do you have email addy of the teacher? I’ll send them a link to this thread.

:-)

This is messy. The question was from the Catholic Secondary Schools Association of NSW 2020 HSC Trial Exam, which was provided to Speedy Jnr by his school for revision work. The solution stated that B was correct.

As it turned out, Speedy Jnr’s school decided to use the same question for their own HSC Mid-year exam this year, and Speedy Jnr wrote “none” beside the question, but selected B as his answer, as it would be stupid to not answer a multiple choice question.

It was marked incorrect, but the solution that his own school thought correct was not provided, or if it was, Speedy Jnr did not make a record of it (we were in lockdown by the time results were known).

I am quite upset with the faculty that teaches Engineering at the school. This is just one example of the extreme laziness they have demonstrated throughout the year, another being countless scheduled ‘on-record’ Zoom meetings that did not eventuate, which I have already made a complaint to the school about. Their response has been dismal so far. My next step will likely be a complaint to “The Department” (as they call it).

I am glad that Little Speedy has chosen very different areas of study for his HSC in 2022, just in case the poo hits the fan.

bloody ‘ell, slackness personified.