B

67問 • 10ヶ月前

Blessie Fath Raneses

通報

問題一覧

The ratio between the numbers of weeds removed by the weeder to the tumber of weeds present per unit area.

weeding index

When a machine is driven directly from the shaft of a power source, the power is transmitted using ____

direct drive

If 10-Hp engine drive has a belt capacity rating of 4.5 hp per belt, how many pieces of belts are needed for the drive?

2 to 3 belts

A rice thresher is to be driven by a 10-hp gasoline engine using V-belt drive. The engine speed is 1800 rpm while the thresher cylinder speed is 650 rpm. The diameter of the engine pulley is 4 inches. What will be the recommended diameter of the thresher's pulley

11 in

What is the recommended belt size for the B-type V-belt needed for the drive above, if its center distance is 60 in.

B144

The recommend size of the shaft for the thresher above is

3/4 in

A diesel engine that operates at 2500 rpm will be used to drive an irrigation pump, which should turn at 1000 rpm. The pulley diameter for the pump is 4 inches. What is the recommended pulley diameter for the engine?

2 in

The ratio between the mass of fuel consumed per unit time and the corresponding power measured

specific fuel consumption

As a rule of thumb, single-phase alternating current electric motor should be used for applications requiring:

< 5 hp

The projection of cash inflow and outflow of a farm to estimate the incremental net benefit of the life of the project is known as:

Farm budget

The gearbox placed on first gear will develop…

high torque – low speed

A transaction by your company this year involving the repayment in cash of a portion of the long term loan of the company in the amount of P 70,000.00 would have the following effect:

decrease in assets = decrease in liabilities

It results in the reduction of the purchasing power of monetary unit.

inflation

A six-bottom moldboard plow is to be used to plow a heavy soil. How many scrapers are there in the plow?

It is a part of the plow that connects the plow bottom and the frame.

Shank

Material recommended by PAES for use as implement frame.

Mild steel

Material recommended by PAES in the manufacture of disk blade.

Carbon steel

When a disk harrow consists of a front and rear gangs and is centrally positioned with the tractor, it is classified as _________?

Double action harrow

When a disk harrow consists of a front gang only and is centrally positioned with the tractor, it is classified as _________?

Single action harrow

When a disk harrow consists of a front and/or rear gangs and is not centrally positioned with the tractor, it is classified as _________?

Offset harrow

The angle between the axis of the set of disks and the line perpendicular to the direction of the implement.

Gang angle

The horizontal seed plate is used for:

hill-drop planter

Planters designed to plant seeds continuously in rows with row spacing greater than 36 cm is called:

row-crop drill planter

The groundwheel of a planter is normally related to the operation of the:

metering device

Part of a planter that is always present in all planters regardless of type and cropping system:

metering device

Planter designed to plant seeds in rows and in hills is called:

hill-drop planter

The adjustable orifice with agitator is used for

row-crop drill planter

Parameter not required in the calibration of a planter is:

ave. seed emergence

Planter designed to place seedlings in rows and in hills is called:

solid drill planter

The IRRI drum seeder is an example of

solid drill planter

Parameter not required in determining the field capacity of a planter:

No. of seeds per hill

Method of pest control not considered engineering control is:

biological control

Sprayers are used primarily for the application of :

pesticides

Which of the following is not a spray nozzle pattern?

hollow fan nozzle pattern

Operation with the highest manual labor requirement for lowland rice:

weeding with push-type weeder

. Principle used in creating hydraulic energy in a lever-operated knapsack sprayer is:

adding liquid to a container with a fixed volume of air

If mechanical work is done at a rate of 1 ft-lb/sec, what is its equivalent in watts?

1.356

It is a self-propelled machine having a single axle designed primarily to pull and propel trailed or mounted agricultural implement and machinery.

All of the above

Warranty period for hand tractor from the purchase of the machine

6 months

A metal sheet with gauge number equal to 14 means___.

14 pieces in one-inch thickness

The required water temperature in testing pump.

10C-60C

The criteria used in evaluating the performance of a machine.

All of the above

The development of a desirable soil structure for a seedbed does not include:

increased water surface runoff

Soil cut, lifted, inverted and thrown to one side of the blow bottom is termed:

furrowslice

Bend sideward of the point of the share to make the plow cut the proper width is:

horizontal suction

The angle the disc of a disc plow makes with the direction of travel to make it cut the proper width and allow it to rotate when moving forward is:

42 – 45 degrees

In the equation,C=SWEff/10,C is capacity expresses in:

ha/h

Floating power tillers are used in:

2-wheel tractor for wetland op.

The mechanical function of the planter does not include:

sort the seeds

The horizontal seed plate is used for:

hill-drop planter

Method of pest control not considered engineering control is:

biological control

Sprayers are used primarily for the application of :

pesticides

Which of the following belong to the group of variable displacement pump?

all of the above

In the equation for horsepower, Hp = QxH/3960xEff,Eff is:

efficiency of the system

The direct type of power transmission system has: (code 52)

100% Eff

Select two consecutive farm operations which when done mechanically can increase cropping intensity:

harvesting – plowing

1 pk is equal to ____________ watts

735.49

The gasoline engine is characterized as

low first cost – high operating cost

The three-phase electric motor is characterized as

low first cost – low operating cost

Indicates the maximum load that can be safely carried by an electric motor under continuous operation:

service factor

The piston goes up and the two valves remain closed is termed:

compression

Type of transmission system where the speed ratio depends on the teeth ratio of the two members:

a and b

In a compression-ignition engine, the fuel is introduced into the cylinder at the:

end of compression

A valve operates:

once per cycle

The thermal efficiency range for internal combustion engines is:

25 – 36%

Type of power transmission system where clutch action is possible:

belt and pulley

The gearbox placed on first gear will develop:

high torque – low speed

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問題一覧

The ratio between the numbers of weeds removed by the weeder to the tumber of weeds present per unit area.

weeding index

When a machine is driven directly from the shaft of a power source, the power is transmitted using ____

direct drive

If 10-Hp engine drive has a belt capacity rating of 4.5 hp per belt, how many pieces of belts are needed for the drive?

2 to 3 belts

11 in

What is the recommended belt size for the B-type V-belt needed for the drive above, if its center distance is 60 in.

B144

The recommend size of the shaft for the thresher above is

3/4 in

2 in

The ratio between the mass of fuel consumed per unit time and the corresponding power measured

specific fuel consumption

As a rule of thumb, single-phase alternating current electric motor should be used for applications requiring:

< 5 hp

The projection of cash inflow and outflow of a farm to estimate the incremental net benefit of the life of the project is known as:

Farm budget

The gearbox placed on first gear will develop…

high torque – low speed

A transaction by your company this year involving the repayment in cash of a portion of the long term loan of the company in the amount of P 70,000.00 would have the following effect:

decrease in assets = decrease in liabilities

It results in the reduction of the purchasing power of monetary unit.

inflation

A six-bottom moldboard plow is to be used to plow a heavy soil. How many scrapers are there in the plow?

It is a part of the plow that connects the plow bottom and the frame.

Shank

Material recommended by PAES for use as implement frame.

Mild steel

Material recommended by PAES in the manufacture of disk blade.

Carbon steel

When a disk harrow consists of a front and rear gangs and is centrally positioned with the tractor, it is classified as _________?

Double action harrow

When a disk harrow consists of a front gang only and is centrally positioned with the tractor, it is classified as _________?

Single action harrow

When a disk harrow consists of a front and/or rear gangs and is not centrally positioned with the tractor, it is classified as _________?

Offset harrow

The angle between the axis of the set of disks and the line perpendicular to the direction of the implement.

Gang angle

The horizontal seed plate is used for:

hill-drop planter

Planters designed to plant seeds continuously in rows with row spacing greater than 36 cm is called:

row-crop drill planter

The groundwheel of a planter is normally related to the operation of the:

metering device

Part of a planter that is always present in all planters regardless of type and cropping system:

metering device

Planter designed to plant seeds in rows and in hills is called:

hill-drop planter

The adjustable orifice with agitator is used for

row-crop drill planter

Parameter not required in the calibration of a planter is:

ave. seed emergence

Planter designed to place seedlings in rows and in hills is called:

solid drill planter

The IRRI drum seeder is an example of

solid drill planter

Parameter not required in determining the field capacity of a planter:

No. of seeds per hill

Method of pest control not considered engineering control is:

biological control

Sprayers are used primarily for the application of :

pesticides

Which of the following is not a spray nozzle pattern?

hollow fan nozzle pattern

Operation with the highest manual labor requirement for lowland rice:

weeding with push-type weeder

. Principle used in creating hydraulic energy in a lever-operated knapsack sprayer is:

adding liquid to a container with a fixed volume of air

If mechanical work is done at a rate of 1 ft-lb/sec, what is its equivalent in watts?

1.356

It is a self-propelled machine having a single axle designed primarily to pull and propel trailed or mounted agricultural implement and machinery.

All of the above

Warranty period for hand tractor from the purchase of the machine

6 months

A metal sheet with gauge number equal to 14 means___.

14 pieces in one-inch thickness

The required water temperature in testing pump.

10C-60C

The criteria used in evaluating the performance of a machine.

All of the above

The development of a desirable soil structure for a seedbed does not include:

increased water surface runoff

Soil cut, lifted, inverted and thrown to one side of the blow bottom is termed:

furrowslice

Bend sideward of the point of the share to make the plow cut the proper width is:

horizontal suction

The angle the disc of a disc plow makes with the direction of travel to make it cut the proper width and allow it to rotate when moving forward is:

42 – 45 degrees

In the equation,C=SWEff/10,C is capacity expresses in:

ha/h

Floating power tillers are used in:

2-wheel tractor for wetland op.

The mechanical function of the planter does not include:

sort the seeds

The horizontal seed plate is used for:

hill-drop planter

Method of pest control not considered engineering control is:

biological control

Sprayers are used primarily for the application of :

pesticides

Which of the following belong to the group of variable displacement pump?

all of the above

In the equation for horsepower, Hp = QxH/3960xEff,Eff is:

efficiency of the system

The direct type of power transmission system has: (code 52)

100% Eff

Select two consecutive farm operations which when done mechanically can increase cropping intensity:

harvesting – plowing

1 pk is equal to ____________ watts

735.49

The gasoline engine is characterized as

low first cost – high operating cost

The three-phase electric motor is characterized as

low first cost – low operating cost

Indicates the maximum load that can be safely carried by an electric motor under continuous operation:

service factor

The piston goes up and the two valves remain closed is termed:

compression

Type of transmission system where the speed ratio depends on the teeth ratio of the two members:

a and b

In a compression-ignition engine, the fuel is introduced into the cylinder at the:

end of compression

A valve operates:

once per cycle

The thermal efficiency range for internal combustion engines is:

25 – 36%

Type of power transmission system where clutch action is possible:

belt and pulley

The gearbox placed on first gear will develop:

high torque – low speed