{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

PS2-08-solutions

# PS2-08-solutions - CE166 Fall 2008 Question 1 Part A...

This preview shows pages 1–2. Sign up to view the full content.

CE166 - Fall 2008 Problem Set 2 Solutions Page 1 of 5 Professor Arpad Horvath Department of Civil and Environmental Engineering University of California, Berkeley Question 1 Part A The loaders travel 60 yd per cycle. They have a capacity of 1.5 yd 3 . The cycle takes 60 seconds. The average speed is 15 mi/hr. day yd day hr hr cycle cycle yd rate production time cycle hr mi hr yd mi yd time travel 3 3 634 8 sec 3600 sec 2 . 68 5 . 1 _ sec 2 . 68 sec 2 . 8 sec 60 _ sec 2 . 8 sec 3600 15 1760 60 _ The cranes have clamshells with 4 yd 3 capacity and a cycle time of 30 seconds. day yd day hr hr cycle cycle yd rate production 3 3 3840 8 sec 3600 sec 30 4 _ The dump trucks have a 10 yd 3 capacity and travel 6 miles to a site (12 miles round trip). The average speed is 25 mi/hr and the dumping time is 75 seconds. day yd day hr hr cycle cycle yd rate production time cycle yd yd time load time dump hr mi hr mi time travel time load time dump time travel time cycle 3 3 3 3 153 8 sec 3600 sec 1878 10 _ sec 1878 sec 75 sec 75 sec 1728 _ sec 75 4 sec 30 10 _ sec 75 _ sec 1728 sec 3600 25 ) 6 2 ( _ _ _ _ _ There is a 1.15 swell factor and all equipment is operated 8 hrs/day. The swell factor is not

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern