Sample Answers for 2024 HSC Engineering Studies examination (2 Viewers)

[wizzkids]

Hi everyone. I did another copy of my answers to the 2024 HSC Engineering studies examination. Can somebody go over my answers and check if they are all correct?
Thanks to FudiddidoAdrian and tomn22 for constructive feedback. This is the corrected copy.

 

[Hehehe22]

Sorry I can't help but I just want to say that your handwriting is incredible

 

[fromthethickofit]

i agree

 

[FudiddidoAdrian]

Hi everyone. I did another copy of my answers to the 2024 HSC Engineering studies examination. Can somebody go over my answers and check if they are all correct?

the goat of engineering

 

[FudiddidoAdrian]

Hi everyone. I did another copy of my answers to the 2024 HSC Engineering studies examination. Can somebody go over my answers and check if they are all correct?

also ur correct for the airplane one but using g=10 is like engineering's standard

 

[FudiddidoAdrian]

Hi everyone. I did another copy of my answers to the 2024 HSC Engineering studies examination. Can somebody go over my answers and check if they are all correct?

q21 seems to be wrong i got approximately 8mm

 

[wizzkids]

q21 seems to be wrong i got approximately 8mm

Oops ... the answer is 0.8 millimetres. Thanks for pointing that out, I used the wrong expression for the circumference of a circle. Doh!

 

[tomn22]

Shouldn't 25 c) the truss analysis be
130 * sin60, not 130/squareroot(3)? Since the perpendicular distance for that is sin60.

 

[tomn22]

And for 25 b) you did everything right, but the final answer should be 0.57 A, not 1.08 A

 

[tomn22]

Wow I think all the rest of your answers are correct

 

[wizzkids]

Shouldn't 25 c) the truss analysis be
130 * sin60, not 130/squareroot(3)? Since the perpendicular distance for that is sin60.

You are quite right, sir. I am indebted to you for checking. I will fix up the worked solutions.

 

[tomn22]

i drew mine shear force diagram exactly like yours but upside down. Would that still be accepted?

 

[PRX]

I think that Q10 should be B because they are asking for the mass instead of the weight force, here's what I did

 

[tomn22]

I think that Q10 should be B because they are asking for the mass instead of the weight force, here's what I didView attachment 45504

yeah that's what i did as well. they asked for mass so should divide F by g to get mass

 

[wizzkids]

View attachment 45503
i drew mine shear force diagram exactly like yours but upside down. Would that still be accepted?

You are probably more correct to draw SFD as you did.

 

[tomn22]

You are probably more correct to draw SFD as you did.

oh ok thanks