Answer:
A gasoline engine transforms approximately 34% of the fuel's chamical energy into mechanical energy.
Explanation:
Many forms of combustion are examples of converting chemical energy into mechanical energy. Chemical energy is locked in the bonds of any combustible material: Gasoline, kerosene, wood, black powder.
Shooting off fireworks, igniting that bottle rocket converts the fuel inside into an exhaust gas which propels the rocket. Pulling the starter cord on your lawn mower ignites the fuel, releasing the energy that drives your lawn mower.
Automobiles, trains, planes all have combustion engines. Jet planes burn fuel more like a rocket engine, using the force generated by directed explosive gases.
The more interesting of this basic conversion principle today is in trying to create the stored chemical energy from mechanical energy. In other words, converting mechanical energy into clean fuel. One of the easiest to see is the use of wind power to produce the mechanical energy to create a DC energy and using that DC energy produce hydrogen from water via the process of electrolysis:
The wind drives the mechanical device that essential rotates a conductor through a magnetic field creating the DC voltage used to separate the hydrogen and oxygen. That mechanical to chemical conversion produces a pure hydrogen which has much more combustion potential energy than an equivalent mass of gasoline.
Which of the following describes the purpose of exercise physiology?
to improve the efficiency of body systems
to understand how to control muscles during exercise
to improve methods for the body to endure exercise
to understand how the body adapts to exercise
Answer:
to understand How the body adapts to exercise
The purpose of exercise physiology is to understand how the body adapts to exercise. So the answer is (4).
What is physiology about?Exercise physiology is a field of study that examines how the body responds to physical activity. It looks at how exercise affects the cardiovascular system, respiratory system, muscular system, and other body systems. Exercise physiology also studies how exercise can be used to improve health and fitness, and to treat or prevent diseases.
The goal of exercise physiology is to understand how the body adapts to exercise so that we can use this knowledge to improve people's health and well-being. By understanding how the body adapts to exercise, we can design exercise programs that are safe and effective for people of all ages and fitness levels.
The correct option is 4.
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how far away from the compressor unit should an air transformer be installed?
Answer:
During installation, the air transformer should be located at least 25 feet minimum from the compressor unit
Explanation:
An air transformer is used to remove the dirt, water and oil in the compressed air and to filter as well as to provide air regulation and are required in spray finishing tasks that calls for a regulated clean and dry supply of air
The air transformer measures the pressure of the regulated air and can also come with air outlets for air operated tools, blow guns, spray guns, as well as for other purposes
In order to operate efficiently, the air transformer are required to be installed at a minimum distance of 25 feet (7.6 m) from the compressor unit.
An HVAC contracting company sent out three work crews to complete three
installations over the past week. If Crew One worked 10-, 9-, 11-, 12-, and 9-hour
days, Crew Two worked 9-, 12-, 12-,9-, and 9-hour days, and Crew Three worked
12-, 12-, 10-, 9-, and 11-hour days, how many total hours did the three crews work
for the week?
Answer: 156 hours
Explanation:
Crew One worked 10-, 9-, 11-, 12-, and 9-hours for the week. The total hours worked by Crew One will be:
= 10 + 9 + 11 + 12 + 9
= 51 hours.
Crew Two worked 9, 12, 12, 9 and 9 hours. The total hours worked by Crew Two for the week will be:
= 9 + 12 + 12 + 9 + 9
= 51 hours
Crew Three worked 12-, 12-, 10-, 9-, and 11-hour daily. The total hours worked by Crew Three for the week will be:
= 12 + 12 + 10 + 9 + 11
= 54 hours
The total hours worked by the three crews for the week will be:
= 51 hours + 51 hours + 54 hours
= 156 hours
A cylinder power balance test is being performed on a vehicle with sequential port fuel injection. Two adjacent cylinders are under performing. Technician A says this could be caused by a restriction in the fuel injectors. Technician B says this could be caused by leaking secondary insulation. Who is correct
Answer:
Neither A nor B
Explanation:
A cylinder balance test is used to locate cylinders that are underperforming and leading to loss of power and unbalanced engine performance, by measuring the drop in RPM on each cylinder as compared to the other cylinders
The factors that result in under performing cylinders includes;
1) Problem with the ignition
2) Inadequate or restricted fuel delivery
3) Valve faults
4) Piston wear
Where adjacent cylinders are the cause for the lack of power, the likely causes includes;
1) Head gasket fault
2) Crack in the head
3) Crack in the block.
find the mass of electron
Answer:
9.10938356 × 10^-31 kilograms
Explanation:
i suck at chem lol
Technician A says when the brakes are applied in a vacuum booster, the vacuum control valve is closed. Technician B says the vacuum control valve is opened. Which technician is correct?
Answer:
Technician A only
Explanation:
The application of the breaks by stepping on the break pedal moves the pedal pushrod and plunger forward within the diaphragm plate, bringing about the contact between the vacuum port seal and the vacuum valve that closes the vacuum port and the passage that connects the left and right chambers such that the pressure in one chamber and te vacuum in the other chamber are held steady.
Chapter 19: Diesel Engine Operation and Diagnosis -Chapter Quiz
1. How is diesel fuel ignited in a warm diesel engine?
A. Glow plugs
B. Heat compression
C. Spark plugs
D. Distributor-less ignition system
2. Which type of diesel injection produces less noise?
A. Indirect injection (IDI)
B. Common rail
C. Direct injection
D. Distributor injection
3. Which diesel injection system requires the use of a glow plug?
A. Indirect injection (IDI)
B. High pressure common rail
C. Direct injection
D. Distributor injection
4. The three phases of diesel ignition include _______________________.
A. Glow plug ignition, fast burn, slow burn
B. Slow burn, fast burn, slow burn
C. Ignition delay, repaid combustion, controlled combustion
D. Glow plug ignition, ignition delay, controlled combustion
5. What fuel system component is used in a vehicle equipped with a diesel engine that is seldom used on the same vehicle when it is equipped with a gasoline engine?
A. Fuel filter
B. Fuel supply line
C. Fuel return line
D. Water-fuel separator
6. The diesel injection pump is usually driven by a _________________.
A. Gear off the camshaft
B. Belt off the crankshaft
C. Shaft drive off of the crankshaft
D. Chain drive off of the camshaft
7. Which diesel system supplies high-pressure diesel fuel to all the injectors all of the time?
A. Distributor
B. Inline
C. High-pressure common rail
D. Rotary
8. Glow plugs should have high resistance when _____________and lower resistance when __________________.
A. Cold/warm
B. Warm/cold
C. Wet/dry
D. Dry/wet
9. Technician A says that glow plugs are used to help start a diesel engine and are shut off as soon as the engine starts. Technician B says that the glow plugs are turned off as soon as a flame is detected in the combustion chamber. Which Technician is correct?
A. Technician A only
B. Technician B only
C. Both Technicians A and B
D. Neither Technicians A NOR B
10. What part should be removed to test cylinder compression on a diesel engine?
A. An injector
B. An intake valve rocker arm and stud
C. An exhaust valve
D. A glow plug
Answer: See explanation
Explanation:
1. How is diesel fuel ignited in a warm diesel engine?
B. Heat compression
2. Which type of diesel injection produces less noise?
A. Indirect injection (IDI)
3. Which diesel injection system requires the use of a glow plug?
A. Indirect injection (IDI)
4. The three phases of diesel ignition include:
C. Ignition delay, repaid combustion, controlled combustion.
5. What fuel system component is used in a vehicle equipped with a diesel engine that is seldom used on the same vehicle when it is equipped with a gasoline engine?
D. Water-fuel separator
6. The diesel injection pump is usually driven by a _________________.
A. Gear off the camshaft
7. Which diesel system supplies high-pressure diesel fuel to all the injectors all of the time?
C. High-pressure common rail
8. Glow plugs should have high resistance when _____________and lower resistance when __________________.
B. Warm/cold
9. Technician A says that glow plugs are used to help start a diesel engine and are shut off as soon as the engine starts. Technician B says that the glow plugs are turned off as soon as a flame is detected in the combustion chamber. Which Technician is correct?
D. Neither Technicians A NOR B
10. What part should be removed to test cylinder compression on a diesel engine?
D. A glow plug
Help I will brainliest
Answer:
hacking?
Explanation:
jsd
Technician A says that the brake pedal should be depressed with as much force as possible during the normal bleeding procedure. Technician B says that the brake pedal should be pumped rapidly during this manual bleeding procedure to force the air down toward the bleeder valve(s). Which technician is correct
Answer:
The appropriate answer is "Neither technician A nor B".
Explanation:
Two consultants or engineers complete the course of treatment A particularly unique upconverter to complement this same master cylinder. The customary static temperature would be used whenever the steering system has always been bleeding would be: 30 psi Two technicians start debating the bleeding atmosphere from either the hydraulic system.Therefore this obvious response is the appropriate one.
According to the rules of dimension how should written notes appear
Explanation:
Leaders for notes should be straight, not curved, and point to the center of circular views of holes wherever possible. Leaders should slope at 45°, 30° or 60° with horizontal but may be made at any convenient angle except vertical or horizontal.
Solar ovens use heat from the Sun to cook food. They work on a principle similar to that of solar panels used to heat homes. What characteristics will your ovens need so that they absorb and retain heat from the Sun? You can do research on the Internet if you wish.
Explanation:
Absorption of the sun's energy (heat) in solar cooking is best achieved when a surface is dark in color, thus the most common solar oven interiors are usually black in color as well as the color of the cookware used for cooking the food. Dark colors absorb the heat, whereas light colors do not absorb heat well.
Metal reflectors should be positioned around the oven to maximize light input to be the most effective.
The characteristics that will ovens need, so they absorb and retain heat from the Sun, are metal reflectors that should be placed around the oven to maximize light input.
What is solar energy?Solar energy is defined as sun-derived energy. Energy can be converted to electricity using solar energy technologies such as solar panels, or it can be used directly to heat and light homes.
There are other renewable energy sources that are also important to us. We have tidal, hydropower, biomass, and wind, for example.
Absorption of the sun's energy (heat) in solar cooking is best achieved when a surface is dark.
Thus, the most common solar oven interiors, as well as the color of the cookware used to cook the food, are usually black. Light colors do not absorb heat well, whereas dark colors do.
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Which option identifies which design process should be used in the following scenario?
Jill is trying to create a new water cooling system inside a car. She needs to determine which components can have material changes for
the best cost benefit ratio.
Answer:
What are the answers, and which one is the second one, the order is randomized for each of the answers.
Explanation:
7. In Fleming's left hand rule what do the
following represent:
First finger:
Second finger:
Thumb:
Answer: See explanation
Explanation:
Fleming’s Left-Hand Rule is simply used to know a conductor's direction of force in an electric motor in a scenario where the direction of the magnetic field and the current are already known.
In Fleming's left hand rule, the following are represented:
First finger: This represents the direction of the magnetic field.
Second finger: This represents the direction of the current.
Thumb: This represents the direction of the motion that is acting on the conductor.
What is an actuator?
Answer:
An actuator is a component of a machine that is responsible for moving and controlling a mechanism or system, for example by opening a valve.
Marks
Q 16.
Which one of the following is not a
feature of Microsoft Access?
Answer:
A Data redundancy
099
B. Facilitates sharing
Dos
C. To assess the
099
D. Allows you to
Answer:
i think C
Explanation:
if not really sorry
Drawing pictures of possible designs describes which step of the engineering design process?
Answer:
In prototype making first step is to make basic picture of the projrct.
A prototype is an operating version of a solution. Often it is made with different materials than the final version, and generally it is not as polished. Prototypes are a key step in the development of a final solution, allowing the designer to test how the solution will work.
Explanation:
Which statement about iso 9000 is true
Answer:
mate what statement because if you mean just 9000 a true number then that's true
Explanation:
The technique of using guidelines and reference points
to create a realistic sense of depth in a two-dimensional
artwork is called
Answer:
Linear perspective.
Explanation:
The technique of using guidelines and reference points to create a realistic sense (illusion) of depth in a two-dimensional artwork is called linear perspective.
In linear perspective, the realistic sense (illusion) of depth is typically created or done on a flat surface so that all the orthogonal or parallel lines can converge at a single vanish point of the drawing's horizon line. Thus, this technique make drawings or paintings of objects to look real.
Hence, linear perspective comprises of three (3) basic components and these are;
1. Vanishing point.
2. Horizon line.
3. Orthogonal or parallel lines.
Generally, drawings (objects) that are drawn or created using linear perspective appear to be larger when viewed closely while drawings (objects) that are further away, appear to be small.
define telecom billing
Answer: Telecommunications billing is the group of processes of communications service providers that are responsible to collect consumption data
Explanation:
What differentiates an athletic trainer from a clinical exercise physiologist?
An athletic trainer must have clinical experience.
An athletic trainer must be certified to obtain clinical experience.
An athletic trainer is more likely to obtain a master’s degree.
An athletic trainer is more likely to work directly with physicians.
Answer:
It's number 3
Explanation:
An athletic trainer must have clinical experience.
A disc brake rotor is being machined. Technician A says that a feed rate of 0.0008 inch per revolution and 150 RPM is where the rotor should be set for a final cut. Technician B says that the rotor should be given a non-directional surface finish using 150 grit sandpaper. Which technician is correct?
Answer:
Technician B only
Explanation:
During rotor reconditioning, which is the process also known as machining and sanding, where sanding is the involves the application of between 120 and 150 grit sandpaper while using a non-excessive force that is applied non-directionally for up to 60 seconds on each side such that the surface roughness meets OE standards. The rotors are then cleaned by washing after they are serviced before they can then be installed.
Creating passwords that are not easy to guess is one way to increase your digital what?
A. security
B. popularity
C. footprint
Answer:
A. Security
Explanation:
Mark Brainliest if it was correct :)
What is the value of the expression 8 cubed?
A. 24
B. 83
C. 512
D. 6,561
Technician A says that many traction control systems reduce engine torque to help the drive wheels achieve traction. Technician B says that hydraulic pressure from the electrohydraulic unit supplies brake fluid pressure to the wheel brake that is spinning during a traction control event. Which technician is correct?
Answer:
both Technician A and Technician B are correct.
Explanation:
In the statements being made both Technician A and Technician B are correct. Technician A's statement deals with how a vehicle's wheels achieve traction but this statement does not interfere with what Technician B is stating. Technician B's statement is in regards to how brake fluid is applied and maintained during the traction control event which allows for the wheels to properly brake as needed.
Entering information on a device is called what?
A. input
B. output
C. programming
D. coding
Explanation:
I'm not an engineering expert, but if I had to guess, I'd say it's A: Input.
Technician A says that a lack of lubrication on the back of the disc brake pads can cause brake noise. Technician B says that pads that are not correctly crimped to the caliper housing can cause brake noise. Which technician is correct?
Answer:
Technician A and B both are correct.
Explanation:
According to Technician A, we can stop noise by applying lubricant (Break friction).
According to Technician A, we can stop noise by set-up right position for break pad.
please tell us about your biggest success solving any mechanical issue
Explanation:
My biggest success solving any mechanical issue is learning how to use a wheelchair and making it easier for my sibling to move around.
Since my sibling broke her legs permanently, I felt terrible and wanted to do something to help out. My hallways were very small, so I wanted to make it easier for her to get around. I asked my parents if we could take down an unneeded wall in the hall, and so we did.
I calculated a bunch of thingies, and soon, my sibling could get around the house with ease, which really made me feel a lot better.
tell me which ones of these do you like the best
Answer:
3rd one (Red)
Explanation:
Look's the best :)
Answer: They are all very nice cars but I like either the red or the blue one the best...
Stay safe and have a Merry Christmas!!!!!!! :D
I just want to say that my account got deleted yesterday and i would love if i got at least 15-20 friends by Christmas.
Describe the architectural Engineering institute activities. Are there contests, conferences, publications? Give an example
Answer:
VISION
To be the worldwide resource for the advancement of the design and construction of integrated buildings.
MISSION
To promote an integrated, multi-disciplinary approach to planning, design, construction and operation of buildings by encouraging innovation, collaboration and excellence in practice, education and research of architectural engineering.
OBJECTIVE
To advance the state-of-the-art and state-of-the-practice of the worldwide building industry by facilitating effective and timely technology transfer;To integrate the technical and professional activities of all individuals engaged in the building industry;To provide a multi-disciplinary forum for building industry professionals to examine technical, educational, scientific and professional issues of common interest;To promote the objectives of the Society.There are conferences regarding an ASCE convention, An Architectural Engineering Institute Conference, and then lastly there is an Earth and Science Space Conference.
Answer:
Architectural engineering, also known as building engineering or architecture engineering, is an engineering discipline that deals with the technological aspects and multi-disciplinary approach to planning, design, construction and operation of buildings, such as analysis and integrated design of environmental systems (energy conservation, HVAC, plumbing, lighting, fire protection, acoustics, vertical and horizontal transportation, electrical power systems), structural systems, behavior and properties of building components and materials, and construction management.[1][2]
From reduction of greenhouse gas emissions to the construction of resilient buildings, architectural engineers are at the forefront of addressing several major challenges of the 21st century. They apply the latest scientific knowledge and technologies to the design of buildings. Architectural engineering as a relatively new licensed profession emerged in the 20th century as a result of the rapid technological developments. Architectural engineers are at the forefront of two major historical opportunities that today's world is immersed in: (1) that of rapidly advancing computer-technology, and (2) the parallel revolution arising from the need to create a sustainable planet.[3][4]
Distinguished from architecture as an art of design, architectural engineering, is the art and science of engineering and construction as practiced in respect of buildings.[5]
Technician A says that valve stem height should be checked and the top of the valve ground, if necessary. Technician B says that an incorrect valve stem height may hold the valve open. Which technician is correct
Answer:
Technician A only
Explanation:
The valve stem height is important as the effects of incorrect valve stem height includes;
1) Side thrust
2) Highly recessed valve
3) Effect on the geometry of the combustion chamber
4) Changes in the volume of the combustion chamber
5) The amount of lifter preload
6) The spring height
7) The amount the valve lifts above the valve seat
8) The valve life span
The valve may stay open after the camshaft lobe is moves past the under the lifter when a valve float occurs at high engine speeds
The valve tips can be grinded as recommended by the manufacturer to correct the the valve stem height.