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19問 • 8ヶ月前

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If the specific yield of a particular well is 3 gpm/ft drawdown and the discharge rate of the pump is 30 gpm, the total drawdown is:

10 ft

A pump was tested in measuring the flow rate using a 90-degree triangular weir. Tests have shown that the head of water into the weir averages at 13 cm. What is the average rate of flow of the pump?

12.02 lps

A 4-m combine traveling at 5 kph can empty its 1.5-ton grain tank in 2 minutes. When unloading on-the-go, it has an 86% field efficiency. Field yield is 3.5 tons/ha.What would be the field efficiency combine stopped to load?

75%

Average harvesting losses of rice at maturity date is 3.35 %, but two weeks after maturity date this will increase to:

8.64%

What is the theoretical field capacity of a 3-m combine traveling at 100 meters in 52 seconds?

2.08 ha/hr

How many grams of cotton seeds are required per row for a hectare of farm, assuming a seeder is to be used in planting the seeds at 0.20-m row spacing and 0.50-m plant spacing? The seeding rate is 10 kg/ha.

0.1g

Determine the no. of days (8hrs/day) to plow a 10-ha field using a 3- bottom moldboard plow drawn by a 4-wheel tractor at a speed of 5 kph and filed efficiency of 76%. Width of cut of one bottom is 33 cm.

3.3 days

A 2-ton capacity flat-bed dryer dries paddy from 20 to 14 percent in 10 hours. What is the drying capacity of the dryer?

0.2 tons per hour

A field measuring 45 m X 90 m is to be prepared using a 1-m upland power tiller at a speed of 3 kph. Assume a 10% overlap between passings and 9 seconds turnaround time at the end of each pass. Determine the field efficiency in going the longer field direction:

83%

Number of times the exhaust valve opens in 2-stroke cycle engine running at 2000 rpm.

None of the above

If the compression ratio is 1:17, the piston displacement volume for 10 cm3 piston clearance volume is

160 cc

Considering that the engine in item above has a piston diameter of 4” and piston stroke of 5”, what is the indicated horsepower of the engine assuming a mean effective pressure of 102 psi.

9.7 hp

What is the approximate pull of a carabao whose weight is 1000 kilogram?

100 kg

A rice husk stove boils 2 liters of water and subsequently evaporated 0.5 liter. The initial temperature of water is 27C. The amount of fuel consumed in boiling and evaporating water is 1.5 kg. What is the thermal efficiency of the stove?

9.2 %

Suppose a 4-cylinder engine has a bore of 3.5 in. and a stroke of 4.0 in, what is the piston displacement of the engine?

153.9 in3

Calculate the indicated horsepower of a six- cylinder engine, 4" bore and 4" stroke, 1500 rpm, 80 psi mean effective pressure.

46.61 hp

A designer has a choice between gray iron and aluminum for an instrument mounting in a power plant. Either material would serve equally well under the same conditions of use. The per-kilogram cost of aluminum and gray iron is P650 and P430, respectively. Each casting made of aluminum would cost P315 to machine while the corresponding cost for the gray iron would be P276. The casting made of aluminum would weigh 0.59 kg while that of the iron would be 1.09 kg. The cost per piece of aluminum casting is closest to:

P698.50

Find the piston size of a 4-stroke, 4-cylinder engine, given the following: I. crankshaft rotation 2500 rpm II. mean effective pressure 162 psi III. indicated horsepower 125 IV. bore-stroke ratio 1:1.5

bore = 3.73”: stroke = 5.59

Calculate the drawbar hp required to pull a plow with 3X14-in bottoms at the rate of 3.25 mph if the specific draft is 8 psi and depth of cut is 7 inches.

20 hp

TCEP EXAM 1

Blessie Fath Raneses · 93問 · 1年前

TCEP EXAM 1