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Questions and Answers
Which of the following is not part of a force pump?
Which of the following is not part of a force pump?
What do you call a device that forces more fuel mixture into the cylinders than would be drawn in under normal atmospheric conditions?
What do you call a device that forces more fuel mixture into the cylinders than would be drawn in under normal atmospheric conditions?
Arrange the following according to the process of management.
Arrange the following according to the process of management.
The gasoline engine is characterized as:
The gasoline engine is characterized as:
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Determine the power equivalent of the fuel used if the brake horsepower is 1.35 hp.
Determine the power equivalent of the fuel used if the brake horsepower is 1.35 hp.
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What will be the power delivered by a belt that exerts a tangential force of 150 N on a half meter radius pulley at a speed of 380 rev/min?
What will be the power delivered by a belt that exerts a tangential force of 150 N on a half meter radius pulley at a speed of 380 rev/min?
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Commodity surplus occurs when the selling price is (X), but equilibrium is attained when the sellers agree to sell at a price at which (Y) are willing to buy.
Commodity surplus occurs when the selling price is (X), but equilibrium is attained when the sellers agree to sell at a price at which (Y) are willing to buy.
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For a 4 inches by 4 inches centrifugal pump with a discharge of 250 gpm, determine the size of the diesel engine.
For a 4 inches by 4 inches centrifugal pump with a discharge of 250 gpm, determine the size of the diesel engine.
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Which pair is mismatched?
Which pair is mismatched?
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Estimate the number of tractors needed for a 1000-hectare farm being planted with hybrid corn.
Estimate the number of tractors needed for a 1000-hectare farm being planted with hybrid corn.
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Estimate the number of picker-sheller needed for the farm.
Estimate the number of picker-sheller needed for the farm.
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In management, this is doing the right things.
In management, this is doing the right things.
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Study Notes
Force Pumps
- A force pump is composed of an inlet valve, a piston, a plunger, and a discharge valve.
Superchargers
- A supercharger is a device that increases the amount of fuel mixture entering the cylinders of an internal combustion engine.
- This results in higher power output for a given engine displacement.
Management Process
- The management process involves the following key stages:
- Formulation of the organization's mission, vision, goals, objectives, and activities.
- Selecting the right employees for the right positions.
- Orienting personnel to ensure goal achievement.
- Coordinating employees and material resources.
- Conducting annual performance evaluations.
Gasoline Engine Characteristics
- Gasoline engines are characterized by a relatively low initial cost but a higher operating cost compared to other engine types.
Efficiency Calculations
- Thermal efficiency is the ratio of the work output to the heat input.
- Mechanical efficiency is the ratio of the brake horsepower to the indicated horsepower.
Power Calculation for a Belt-Driven System
- The power delivered by a belt is calculated by multiplying the tangential force, the radius of the pulley, and the rotational speed.
Economic Concepts
- Commodity surplus indicates a situation where the selling price is higher than the price at which consumers are willing to buy.
- Equilibrium price is the point where supply and demand are balanced.
Pump Sizing and Efficiency
- Pump efficiency is the measure of how effectively the pump converts input power to fluid power.
- Belt transmission efficiency represents the power loss in the belt drive system.
- Air-cooled system efficiency reflects the efficiency of the cooling system.
Classifying Goods
- Consumer goods are products intended for personal use.
- Services are intangible activities performed for customers.
- Inelastic demand refers to a situation where demand remains relatively constant despite price changes, as is often the case with essential goods like food.
- Producer goods are products used in the production of other goods or services.
Mechanized Farm Operations
- The following information is provided for a 1000-hectare farm:
- The farm will be planted with hybrid corn.
- Mechanized operations include plowing, harrowing, planting, spraying and harvesting.
- The width of cut for a 3-bottom disc plow is 160 cm.
- The width of cut for a disc trailing harrow is 220 cm.
- The farm uses four-row corn planters.
- The farm uses a 1-row corn picker-sheller.
- The operating speed for plowing and harrowing is 4 kph.
- The row spacing for corn is 1 meter.
- The field efficiency is 80%.
- The planting and harvesting speed is 5 kph.
Tractor Requirements
- The number of tractors needed is based on the area to be cultivated, the working speed, and the field efficiency.
Picker-Sheller Requirements
- The number of picker-shellers is determined by the harvest area and the working speed.
Crop Cycle Time
- The total time required for the entire crop cycle, including planting, growth and harvest, is referred to as the cycle time.
Management Principles
- Effectiveness focuses on achieving desired outcomes, while efficiency involves maximizing output with minimal resources.
- Competence refers to the ability to perform tasks effectively.
- Reliability indicates a consistent ability to perform accurately and on time.
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Description
This quiz covers fundamental engineering concepts related to force pumps, superchargers, and gasoline engine characteristics. It also examines the management processes essential for coordinating resources and evaluating performance. Test your understanding of efficiency calculations and the operational specifics of various engine types.
