Rice seedlings grown in nurseries for transplanting wherein the roots are washed thoroughly to remove the soil.

Function of field speed, operating width and field efficiency expressed in ha/hr

Method of crop establishment for rice wherein rice seedlings grown in a nursery are pulled and transferred into puddled and leveled fields, 15 to 40 days after seeding.

Type of mechanical transplanter designed for handling rice seedlings that are removed from the traditional nurseries and washed well with water. The seedlings are neatly arranged on the seeding tray of the transplanter.

Sugarcan stalks containing buds used as a planting mat.

Part of granule applicator where granules are loaded.

Points in the field where a seedling is transplanted.

Ratio of the total number of hills without seedlings to the total number of hills expressed in percentage

Series of hills in a field.

Type of sugarcane planter that is capable of chopping sugarcanes into billets which are dropped into the furrows.

Type of granule application that uses wheel rotational motion to actuate application of granules. The granules are metered by a spinner plate of a screw attached to the ground wheel.

Type of granule application that uses a spinner plate or a screw attached to the power take-off shaft to actuate metering of granules.

Ratio between productivity of a machine under field conditions and the theoretical maximum productivity

Horizontal distance perpendicular to the direction of travel between the outermost edges of the implement

Part of the transplanting arm that picks rice seedlings

Modified wheel used in transplanters to facilitate movement in the field

Rice seedlings grown in nursery for transplanting wherein soil is retained with the roots for transplanting

Type of mechanical rice transplanter designed for handling rice seedlings that were grown with soil attached.

Part of the granule applicator that puts the granule in motion through continuous rotation

Ratio of the total number of hills with seedlings damaged by cutting, bending or crushing during transplanting to the total number of hills

Ratio of the number of hills with seedlings to the total number of hills

Generic term used for a small particle having a diameter ranging from 2mm to 4mm

When was the Cartesian coordinate system introduced?

Lines P and V are parallel, what is the value of x?

Find the slope of the line through the pair of point, (12,3) and (2,9).

Find the distance between the pair of points, (8,6) and (5,3)

Consider the triangle with vertices A(-5, -3), B(4, -1), and C(3, 4), find angle B.

Given two points, P (0, -1) and Q ( 4,1 ) on a line, find the equation.

A radio telescope has a parabolic dish with a diameter of 100 meters. The collected radio signals are reflected to one collection point, called the “focal” point, being the focus of the parabola. If the focal length is 45 meters, find the depth of the dish.

Walking in the rice field operating the sprayer with a spray swath of 1m, a person covers 20 m/min. If the nozzle discharge is 0.4 L/min, what is the application rate per hectare?

A boom sprayer has 12 nozzles and each nozzle discharges 0.6liter/min, what is the application rate if the spray swath is 6m and speed of travel is 25m/min?

Compute the number of hills to be planted with corn on a 50 hectare farm. The seed spacing is 40 cm and hill spacing is 50 cm.

A ten hectare farm will be planted with soybean at hill and row spacing of 20 cm x 40 cm. If the seed has a percentage emergence of 85%, how many plants are expected to emerge during cropping season

A 2 hectare farm is to be planted with peanut at a rate of 200 kg/ha. The hill and row spacing is 30 cm x 40 cm, respectively. How many grams of peanuts is to be planted per hill?

The fertility of a field is such that maximum corn yields are obtained with a population of 60000 plants per hectare. The rows are 0.65m apart and an average emergence of 90 percent is expected. How many seeds per hill should be planted if the hills are 0.5 m apart?

Using the specifications of the transmission system of the metering device (horizontal seedplate) of the two-row corn planter, determine the expected hill spacing. Row spacing = 75cm, groundwheel diameter = 60cm, no. of cells of seedplate = 20, T1 = 6t, T2 = 18t, T3 = 10t and T4 = 25t.

Using the results of the calibration test of a 5 row - 5 0 cm grain drill, determine the seeding rate adjustment to use if it is desired to plant at the rate of 75 kg per hectare.

Ground wheel diameter = 1.2 m

No. of GW revs = 10

A centrifugal pump equipped with a variable frequency drive running at 3500 rpm is discharging 240 gallons per minute corresponding with a head of 287 ft. The horsepower is 35.5. If the pump's speed is reduced to 2900 rpm, what will be the revised head?

Which of the following countries follow the mechanization model of low land area to farmer ratio?

It refers to the height from the water surface to the highest point of discharge

It is the energy loss or pressure decrease due to friction when water flows through a pipe.

It is the energy of the water due to its velocity.

The power input of a pump which is the power delivered to the motor or other power unit.

It is the lowering of the water table during pumping.

Compute the horsepower required to pump a stream of 60 liters per second against a head of 12 meters. Actual pumping efficiency is 59 percent.

If the speed of an irrigation centrifugal pump is increased by 30%, the power requirement is increased by ___.

It is a type of pump which develop most of the suction and discharge head by propelling or lifting action of the impeller vanes on the water.

It is the total suction head determined at the suction nozzle (corrected to pump center line) minus the vapor pressure of water at the pumping temperature.

The water to be used during the test of a centrifugal water pump shall be clean with a temperature range of ____.