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| Term | Definition |
|---|---|
| 14346 kg | A four-wheel-drive tractor weighs 20,000 kg and produces a maximum rimpull of 18,160 kg at sea level. The tractor is being operated at an altitude of 3050 m on wet earth. A pull of 10,000 kg is required to move the tractor and its load. Compute the maximu |
| 21% | A four-wheel-drive tractor weighs 20,000 kg and produces a maximum rimpull of 18,160 kg at sea level. The tractor is being operated at an altitude of 3050 m on wet earth. A pull of 10,000 kg is required to move the tractor and its load. Compute the derati |
| W B H V K | What are the factors predicting the safe load capacity of bulb piles? |
| 5090 m/s 11.6 m | Determine: a) the speed of sound through a long aluminum rod and b) the wavelength of the sound waves produced by a 440 Hz vibration in the rod. The elastic modulus of aluminum is 70.0 x 10° N/m² and the density is 2.70 x 103 kg/m² |
| 6.1 cm | The tube of a mercury thermometer has an inside diameter of 0.140 mm. The bulb has a volume of 0.255 cm³. How far will the thread of mercury move when the temperature changes from 11.5°C ta 33.0°C? Take into account the expansion of Pyrex glass. |
| 3453.7 ft² | Part of a turn-around area in a parking lot is shaped like a circular segment. The segment has a central angle of 120° and a radius of 75 ft. If the circular segment is to receive a special surface treatment, what area will be treated? |
| 0.994 W/m² | A pile driving hammer emits 143 W of sound power when operating. What is the maximum areal sound power density at the ground when 10.7 m of pile remains to be driven? Assume isotropic reflection and disregard reflected power. |
| 24180 years | A breeder reactor converts relatively stable uranium-238 into the isotope plutonium-239. After 15 years it is determined that 0.043% of the initial amount A, of the plutonium has disintegrated. Find the half- life of this isotope if the rate of disintegra |
| 0.1055(T) +70.409 r= 0.995 | The following yield data are obtained from five identical treatment plants. (a) Develop a mathematical equation to correlate the yield and average temperature. (b) What is the correlation coefficient? |
| 2.94 | A batch of fine aggregates was sieve graded. The percentages retained on each sieve are shown. What is the sand's fineness modulus? |
| 81.85 kph | A car drives on a highway with a legal speed limit of 100 kph. The fuel usage, Q, (in liters per 100 km driven) of a car driven at speed (Aph) is given by the equation below. At what legal speed should the car travel in order to maximize the fuel efficien |
| 8.0 x 10⁵ | During the early morning hours of August 24, 1992, the winds of Hurricane Andrew visited the home of the author of this study guide. It is estimated that wind gusts in excess of 150 mph (67 m/s) passed over the roof of the author's house. Calculate the |
| The Hazards are driving off the road due to distraction or inattention tipping over (whipping) at high speeds difficulty in getting proper superelevation | What are the disadvantages associated with reverse curves? |
| 1.9 m | Find the maximum safe unsupported height in meters for a 20-cm heavyweight concrete block wall if the maximum expected wind velocity is 80 kph. |
| 3500 | Construction of a 50-ft-wide roadway requires fill between station 10 0.00 and station 11 0.00. The table below shows required depth of fill (ft) at various horizontal offsets (ft) from the centerline of the roadway alignment. Earthwork is to be calculate |
| 1280 | A room is 35 ft 25 ft in plan. Ceiling height is 14 ft. Openings for doors and windows total 85 ft2. The following data is given for plastering and painting operations. Plaster and paint crew: 1 supervisor $30/hr 1 laborer $12/hr 2 painter |
| 276 students | Suppose a student carrying a flu virus returns to an isolated college campus of 1000 students. If it is assumed that the rate at which the virus spreads is proportional not only to the number x of infected students but also to the number of students not i |
| (-1, -3, 2) | Use Cramer's rule to solve for the values of x, y, and z that simultaneously satisfy the following equations: |
| 30 mins | When a cake is removed from an oven, its temperature is measured at 300°F. Three minutes later its temperature is 200°F. How long will it take for the cake to cool off to a room temperature of 70°F? |
| 120.4 | 1. A tall tower was photographed from an elevation of 700 m above the datum. The radial distances of the top and bottom of the tower from the principal points are 112.50 mm and 82.40 mm, respectively. If the bottom of the tower is at an elevation 250 m ab |
| 10000 | The plan of a survey plotted to a scale of 10 m to 1 cm is reduced in such a way that a line origi- nally 10 cm long now measures 9 cm. The area of the reduced plan is measured as 81cm². The actual area (m²) of the survey is |
| 1:1111 | The plan of a map was photo copied to a reduced size such that a line originally 100 mm, measures 90 mm. The original scale of the plan was 1:1000. The revised scale is |
| 0° to 90° | In quadrantal bearing system, bearing of a line var- ies from |
| P3, Q1, R2, S4 | 2. Group 1 lists tool/instrumentwhile Group II lists the method of surveying. Match thetool/instru- mentwith the corresponding method of surveying. [2014] Group 1 Group II P Alidade 1. Chain surveying Q Arrow 2. Levelling R |
| 1/( (1/Wx) + (1/Wy) + (1/Wz) ) | In a survey work, three independent angles X, Y, and Z were observed with weights w_{x} W_{r} w_{x} respectively. The weight of the sum of X and Z is given by: |
| 1:5000 | In a closed loop traverse of 1 km total length, the closing errors in departure and latitude are 0.3 m and 0.4 m, respectively. The relative precision of this traverse will be: |
| 7.9 | A concrete mix contains cement, moist sand, and moist coarse aggregate in the following proportions by weight: 1.1.8.2.6. The following specifications are given: Cement specific gravity-3.15 SSD sand (m.c. = 0.5%) specific gravity 2.70 SSD |
| 6 | A landfill accepts municipal solid waste from town A (population 20,000). The landfill has been in operation for 6 years and has remaining capacity of 1,000,000 yd³. A new subdivision (population 5,000) is developed and populated. The waste generation rat |
| 11 | An activity on arrow network for a project is shown below. Numbers adjacent to arrows are activity durations (weeks). Assume project start date is week 0. The early start date (week) for activity G is: |
| 7 | A grade beam 3 ft wide 2 ft deep must be poured around the perimeter of a building whose plan is shown below. The trench excavated for the grade beam has to have IV:1H side slopes. Excavation is accomplished by a trackhoe, having productivity of 9 yd3/hr. |
| 6.9 | 3. A water supply board is responsible for treating 1500 m3/day of water. A settling column analysis indicates that an overflow rate of 20 m/day will produce satisfactory removal for a depth of 3.1 m. It is decided to have two circular settling tanks in p |
| 15 years | The present population of a community is 28,000 with an average water consumption of 4200 m3/d. The existing water treatment plant has a design capacity of 6000 m3/d. It is expected that the population will increase to 44,000 during the next 20 years. The |
| 13, 30,000 | The population of a city at previous consecutive census year was 4,00,000; S5,58,500; 7,76,000 and 10,98,500. The anticipated population at the next census to the nearest 5,000 would be |
| 385.7 | The hardness of a ground water sample was found to be 420 mg/l as CaCO3. A softener containing ion exchange resins was installed to reduce the total hardness to 75 mg/l as CaCO3 before supplying to 4 households. Each household gets treated water at a rate |
| 200 m² | For a flow of 5.7 MLD (million liters per day) and a detention time of 2 hours, the surface area of a rectangular sedimentation tank to remove all particles have setting velocity of 0.33 mm/s |
| 6.2967 | . The pH of water admitted into a treatment plant was 6.0 in the morning. Consequent to inflow of raw water from a different source, it changed to 8.0 in the next 24-hour. Assuming linear variation in time of the hydrogen ion concentration, the time mean |
| 50% | A town has an existing horizontal flow sedimentation tank with an overflow rate of 17 m3/day/m2, and it is desirable to remove particles that have setting velocity of 0.1 mm/sec. Assuming the tank is an ideal sedimentation tank, the percentage of particle |
| 0.02 mm | A settling tank in a water treatment plant is designed for a surface overflow rate of 30 m3/day-m2. Assume specific gravity of sediment particles = 2.65, density of water (p) = 1000 kg/m3, dynamic viscosity of water (m) = 0.001 N.s/m2 , and stokes law is |
| 32400 | 11. A water treatment plant is required to process 28800 m3/d of raw water (density 1000 kg/m3, kinematic viscosity = 10-6 m2/s). The rapid mixing tank imparts a velocity gradient of 900 s-1 to blend 35 mg/l of alum with the flow for a detention time of 2 |
| 350 | A town is required to treat 4.2 m3/min of raw water for daily domestic supply. Flocculating particles are to be produced by chemical coagulation. A column analysis indicated that an overflow rate of 0.2 mm/s will produce. satisfactory particle removal in |
| 0.005 mm/s | A soil is composed of solid spherical grains of identical specific gravity and diameter between 0.075 mm and 0.0075 mm. If the terminal velocity of the largest particle falling through water without flocculation is 0.5 mm/s, that for the smallest particle |
| 0.21 mm | The following data are given for a channel-type grit chamber of length 7.5 m. flow-through velocity = 0.3 m/s the depth of wastewater at peak flow in the channel = 0.9 m specific gravity of inorganic particles = 2.5 g = 9.80 m/s2, μ = 1.002 × |
| 90 m² | For a water treatment plant having a flow rate of 432 m3/h, what is the required plan area of a Type I settling tank to remove 90% of the particles having a settling velocity of 0.12 cm/sec is [APRIL 2024] |
| 144 | A water treatment plant is designed to treat 1 m3/s of raw water. It has 14 sand filters. Surface area of each filter is 50 m2. What is the loading rate (in m3/day.m2) with two filters out of service for routine backwashing? |
| 0.05 | 17. A groundwater sample was found to contain 500 mg/l total dissolved solids (TDS). TDS (in %) present in the sample is |
| 150 mm and 0.57 m/s | An existing 300 mm diameter circular sewer is laid at a slope of 1:280 and carries a peak discharge of 1728 m3/d. Use the partial flow diagram shown in the figure below and assume Manning's n = 0.015. At the peak discharge, the depth of flow and the veloc |
| 0.50 m | A small filter of 0.05 m depth removes 90% of particles present in water. If the particles removal required is 99%, what should be the depth of filter? |
| 60.50 | 16 MLD of water is flowing through a 2.5 km long pipe of diameter 45 cm. The chlorine at the rate of 32 kg/d is applied at the entry of this pipe so that disinfected water is obtained at the exit. There is a proposal to increase the flow through this pipe |
| 1.00 | 20. At the same mean velocity, the ratio of head loss per unit length for a sewer pipe flowing full to that for the same pipe flowing half full would be |
| 0.00023 | . A circular sewer 2 m diameter has to carry a discharge of 2 m3/s when flowing nearly full. What is the minimum required slope to initiate the flow? Assume Manning'sn = 0.015. |
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