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Option 1 is mostly in US units, you will find a some examples in IS units. Option 1 is fine and complements very well with the MERM book. Shigles has more detail and good examples to practice as well. Greetings.

Passed: PE Mechanical Eng., First Time, South Carolina.

Hi, I took MD in October 2010. Option 1 is what I used for preparation and on the exam. That version of Shigley is in US units. It think option 2 may be in IS units. Hope this helps.

In the solution they are considering the make up water, but how do you solve for make up water if you have to calculate the air flow first and then make up water can be calculated. I just took the make-up water out of the equation and came up with 70281 CFM of air, then calucalted the make up...

Check on MERM 51-4. Section 5 describes the equations for Thick Walled Cylinders. I tried first to use the thin walled cylinder equation and then check if t/R < 0.1. From table 51-2 you select for internal pressure the circunferential stress equation calculation. Hope this helps.

This question took me a while before fully understand the solution. I bougth Schaum's outlines Mechanical Vibrations book. Check on page 67 equations (3.20). This equation is not in MERM...???. The solution can lead to two possible answers: 71% (Equation 3.15) and 141% (Equation 3.20). w/wn...

The only thing you will find in MERM is how to calculate the Inertia of the weld group (Ap. 51.A). (Please correct me if I'm wrong). Then you go to Shigley and use the weld joint shear stress equation: Shear Stress = Moment * r / (0.707 * h * Ju), where Ju is the inertia calulated from the Ap...

The smallest diameter of the hole is .265 but you have to subtract for the positional tolerance of .0005 for both the pin and hole. This means the pin can't be bigger than .265 - 2(.0005). Hope this made sense.

Hi, how I can get a copy of NCEES 2001 sample exam???, I completed the 2008 sample exam and need to work faster on the afternoon MD problems. Thanks.

I think the problem should state the way the belt is to operate. One problem in the morning session smaple exam (NCESS) ask to calculate the force to hold the weigth at the other end of the rope. Friction force acts between the polley and the belt so in this case, the friction force "helps" to...

Is the Shigley book in IS units really helpfull for the PE exam?. I was wondering if we need one in US unit instead. Advice please. I have used the book in college before, but know trying ot see how usefull will be. Thanks.