Q.3/A Crawler hoe having a three Cyd bucket and whose cost per hour, including the wage to an operator, is $95 will excavate and load haul units under each stated condition. The maximum digging height of the machine is (25 ft.). Determine the cost of one cubic yard for each condition. Condition 1 2 3 Material Depth of excavation Percent swell Angle of swing Efficiency factor (min/hr) Sandy clay Hard clay Rock, well blasted 15 60 90 50 10 20 60 45 18 35 90 50 4 Sand & gravel 20 13 150 55

Q.3/A Crawler hoe having a three Cyd bucket and whose cost per hour, including the wage to an operator, is $95 will excavate and load haul units under each stated condition. The maximum digging height of the machine is (25 ft.). Determine the cost of one cubic yard for each condition. Condition 1 2 3 Material Depth of excavation Percent swell Angle of swing Efficiency factor (min/hr) Sandy clay Hard clay Rock, well blasted 15 60 90 50 10 20 60 45 18 35 90 50 4 Sand & gravel 20 13 150 55

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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Q.3/A Crawler hoe having a three Cyd bucket and whose cost per hour, including the wage to an
operator, is $95 will excavate and load haul units under each stated condition. The maximum digging height
of the machine is (25 ft.). Determine the cost of one cubic yard for each condition.
Condition
1
2
3
Material
Depth of excavation
Percent swell
Angle of swing
Efficiency factor (min/hr)
Sandy clay Hard clay Rock, well blasted
18
15
35
90
50
10
20
60
45
60
90
50
4
Sand & gravel
20
13
150
55

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