EXCAVATING & LIFTING
1. Excavator Production
Keyword: 3.89 × 0.9 × 0.8
= 2.75 BCM
2. Hydraulic Excavator
Keyword: Expected Production
Small Hydraulic Excavator
= 113 LCM/hr
3. Shovels
12. Pushing Loading in Scrapes
Keyword: Backtrack & Chain Loading Methods
= 3 and 2 → Number of Scrapers Required
= 4.3 and 6.5 → Number of Scraper per Pusher
6. Tropical cyclone "Inting" will hit the country with an
estimated forecast velocity of propagation of wave equal to 80
kph. Determine the approximate length between crest of the
wave in meters.
= 316.50 m
13. Number of Pushers
Keyword: Single Scraper Assuming Adequate
Pusher
= 1112 BCM/hr
7. The velocity propagation of wave during the typhoon Ondoy
is equal to 120 kph at a certain point in Pacific Ocean. Determine
the approximate depth of the ocean at that particular point.
= 0.356 km
14. Haul Unit
Keyword: Shovel/Truck Operation
a) 11 Trucks & 212 BCM/h
8. Tropical typhoon "Yolanda" hits the country with an estimated
wind speed of 140 kph. This causes a storm surge in Tacloban
City with a period of 7.47 sec in a point having a depth of 9 m.
Compute the height of the wave if it has a steepness of 0.14.
= 12.19 m
Keyword: Hydraulic Shovel (Common Earth)
= 290 LCM/h
4. Draglines
Keyword: Dragline Production
= 165 LCM/h
5. Clamshells
Keyword: Medium Weight Clamshell
= 53 LCM/hR
b) 9 Trucks & 186 BCM/h
15. Compacting and Finishing
Keyword: Fifteen Miles (24.1 km) of gravel road require
reshaping and levelling.
= 23.1 h
9. The velocity of propagation of a deep-water wave caused by
Typhoon "Senyang" is equal to 40 mph at a certain point in the
ocean. Estimate the depth of still water level at this point in
fathoms.
= 55.97
7. Loader Production
Keyword: Wheel Loader
= 168 Lm3 /h
PORTS & HARBOR
1. During Typhoon Ondoy, due to strong winds, it causes a
wavelength of a shallow-water wave of 80 m. long. If the wave
period (the time for two consecutive crests to pass a given point
is 7.2 sec., determine the depth of water at that point assuming
it to be uniform.
= 32.75 m
10. Tropical cyclone "Inting" hit the country with an estimated
forecast of wave speed of 120 kph. The cyclone causes a storm
surge with a frequency of 0.109 hertz. Compute the length
between the crest of the deep-water wave.
= 131.18 m
8. Rolling & Grade
Keyword: Wheel Tractor-Scraper
= 9100 kg ☆ 10%
(+) Grade
2. The wavelength of a shallow-water wave is 80 m long, and its
period of oscillation is 7.2 seconds. If it has a depth of water
equal to 30 m, compute the velocity of the wave in m/s.
= 11.04 m/s
LOADING & HAULING
6. Dozer Production
Keyword: Power Shift Crawler
= 271 LCM/hr
= 9100 kg ☆ 0%
(-) Grade
9. Rolling & Grade
Keyword: Rubber-tired Scraper
= 5535 kg
10. Effect of Tractor
Keyword: Four-wheel Drive
“Can tractor perform these conditions?”
= 9000 kg
*Because the maximum pull as limited by traction is less than
the required pull, the tractor cannot perform these conditions. *
11. Scraper Production
Keyword: Single Engine Two-axle Tractor
= 192 BCM/h
3. The length of wave in a deep-water wave is 114.8 m. The water
will reach a shallow water depth when the waves start to break.
Determine the depth of shallow water at this condition.
= 20.5 m
4. Tropical typhoon Yolanda hits the country which cause a
storm surge in Tacloban City. The wave period at a point having
a depth of 36 m in the ocean is 6.4 sec. Compute the height of the
wave if it has a steepness of 0.14.
= 8.95 m
5. Deep water waves breaks when the forward velocity of the
crest particles exceeds the velocity of propagation of the wave
itself. Determine the amplitude of the water waves at this
condition when the depth of water is 64 m.
= 18.29 m
11. The wind velocity of 4.2 m/s causes a deep-water wave
formation in a period of 6.67 sec. Compute the depth of water.
= 14 m
12. Compute the maximum wave height if it has a significant
wave height of 3.4 m high.
= 6.36 m