Reza problems

[PEin2010]

Chapter 6

Problem #39 - part I, why did they not use the Pyramid method for volume calculation?

Problem #44 - How is it known that the Southeast corner of the property is located at station 13+20?? Did I just not see it? I spent 15 minutes trying to find it in the figure, but wasn't able to! do you know where it came from?

Problem #48 - the solution seems to use a very roundabout way to get the answer, anyone know of a quicker way? whats more i don't think im gonna have the time to do this entire calc in 3 mins!

Many thanks and good luck to all test takers

 

[superman2011]

Chapter 6
Problem #39 - part I, why did they not use the Pyramid method for volume calculation?

Problem #44 - How is it known that the Southeast corner of the property is located at station 13+20?? Did I just not see it? I spent 15 minutes trying to find it in the figure, but wasn't able to! do you know where it came from?

Many thanks and good luck to all test takers

Problem 39: Pyramid method is only used when one of the two end areas is insignificant. If you are looking at the cut section (2+50 - 6+00), your end areas would be zero on both ends, therefore, its useless.

Problem 44: I didn't even bother to solve this problem.

Problem 48: Reza told us not to do it...

 

[PEin2010]

Thanks! for problem 39 though couldn't you break it up into two parts one from 2+50 to 3+00 and then from 3+00 to 6+00 ..i did that and the answer is different, essentially though if you break it up this way it still sets up equivalent to 2+50 to 6+00.

Chapter 6
Problem #39 - part I, why did they not use the Pyramid method for volume calculation?

Problem #44 - How is it known that the Southeast corner of the property is located at station 13+20?? Did I just not see it? I spent 15 minutes trying to find it in the figure, but wasn't able to! do you know where it came from?

Many thanks and good luck to all test takers

Problem 39: Pyramid method is only used when one of the two end areas is insignificant. If you are looking at the cut section (2+50 - 6+00), your end areas would be zero on both ends, therefore, its useless.

Problem 44: I didn't even bother to solve this problem.

Problem 48: Reza told us not to do it...

 

[henryf]

Has anyone seen an errata to Rezas book? I have a second hand copy and there is alot of stuff that is obviously off by a half

 

[EnvEngineer]

There is no errata, but I also dont see and wrong answeres, might need to check your calcs