5. A 100,000 lb (empty weight) scraper is hauling 30 cubic yard loads of soil with a bank unit weight of 104 pcf (moist or in-situ) and a swell factor of 0.9. If the scraper has a 280 FLYWHEEL HORSEPOWER engine, a drive train efficiency of 90%, a duty factor of 85%, rolling resistance of 60 Ib/ton and is hauling un a 3. 5% grade what is its haul cruising speod in miles per hour?

5. A 100,000 lb (empty weight) scraper is hauling 30 cubic yard loads of soil with a bank unit weight of 104 pcf (moist or in-situ) and a swell factor of 0.9. If the scraper has a 280 FLYWHEEL HORSEPOWER engine, a drive train efficiency of 90%, a duty factor of 85%, rolling resistance of 60 Ib/ton and is hauling un a 3. 5% grade what is its haul cruising speod in miles per hour?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

5.
A 100,000 Ib (empty weight) scraper is hauling 30 cubic yard loads of soil with a bank unit
weight of 104 pcf (moist or in-situ) and a swell factor of 0.9. If the scraper has a 280 FLYWHEEL
HORSEPOWER engine, a drive train efficiency of 90%, a duty factor of 85%, rolling resistance of
60 Ib/ton and is hauling up a 3.5% grade, what is its haul cruising speed in miles per hour?

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