You can expect a control system within a building to turn mechanical devices on and off and to adjust the primary source of power. Thus, the correct option for this question is C.
What are Mechanical devices?Mechanical devices may be characterized as those devices or instruments that have parts that move when it is working, often using power from an engine or from electricity.
HVAC control systems are used to control the operations of heating, ventilation, and air conditioning equipment. An example of a control device is a thermostat. By lowering the thermostat, we control the functions of the air conditioner unit.
Therefore, you can expect a control system within a building to turn mechanical devices on and off and to adjust the primary source of power. Thus, the correct option for this question is C.
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11) A car manufacturer needs an alarm sound for certain undesirable conditions for the new car. The alarm should be activated when any of the following conditions is met: a) The headlights are on while ignition is off. b) The door is opened while the ignition is off. c) The seat belt is not used when the ignition is on. By using suitable logic gates, design the logic circuit of the alarm system showing all necessary steps. The input variables are as follows: Inputs S D I L Seat belt in use (Input S = 1) All doors are shut (Input D= = 0) Ignition is off (Input I = 1) Headlights are off (Input L = 0) Condition
how to draw logic gates, coding ,kmap and truth table
The fundamental components of any digital system are logic gates. It is an electronic circuit with one or more inputs and just one output.
What is logic gates ?In any digital system, logic gates serve as the fundamental building elements. One or more inputs may be present, but there is only one output in this electronic circuit. An established logic governs the relationship between the input and the output. This is the basis behind the names AND, OR, NOT, etc. given to logic gates.
Using cables that stand for 1s and 0s, we transmit data through computers. In order for computers to someday perform more difficult tasks like computing the 50th digit of, they need to be able to manipulate those 1s and 0s. Input wire 1s and 0s are converted via logic gates in computers.
A K-map is a particular type of truth table that facilitates the mapping of parameter values and leads to a shortened Boolean expression. Functions with two to four variables are ideal candidates for K-maps.
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Determine the magnitude and direction of the force that must be applied to the bottom of the gate shown in Fig. P2.77 to keep the gate closed.
The magnitude of force that a liquid applies to the the container's surface in which it is contained is known as hydrostatic force. Hydrostatic is the amount of tension in a fluid at a specific depth.
What is the physics magnitude?In physics, the word "magnitude" is used to characterize an object's maximum size and direction. Magnitude is a factor that is shared by both scalar and vector values.
What is a vector's magnitude?The length of a vector determines its magnitude. The magnitude of the vector is denoted by the letter "a." For more information on a vector's magnitude, see the introductory to vectors.
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how to answer what have been your most significant experiences in stem (science, technology, engineering, and mathematics) and how will you use stem principles to improve the world?
By combining science, computing, engineering, and math, STEM enables us to address the problems that the world faces today.
How would you define engineering?Engineering is the use of math and science to the designing, testing, and construction of devices, structures, and procedures. A rewarding job can result from studying it. Problem-solving is at the heart of engineering.
Which nation has the best mechanical engineering sector?China, the States of America, German, and France have the largest need for mechanical engineers. Because they require them to design and construct machinery and other technology for their firms, these nations have a strong market for those in this field.
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5. In proportional control, the controller's output is constant and equal to 1.5. If the controller's proportional gain is 0.8, the setpoint temperature is 75°F, and the actual temperature is 72
what's the controller's output?
OA 39
OB.2.1
OC. 15.2
O 0.53
Question Suppose we have a business operating in six cities around the Pacific Rim: San Diego; San Francisco_ Tokyo, Shanghai, Manila, and Honolulu: We are interested in counting the number of ways wC can travel from one city to another with at most n stopovers We look up all the direct flights and put them in table: San Diego 17 San Francisco San Francisco / San Diego. Tokyo; Shanghai, Manila; Honolulu Tokyo San Francisco, Shanghai, Manila Shanghai San Diego; San Francisco, Tokyo, Manila Manila Tokyo, Shanghai, Honolulu Honolulu San Francisco, Shanghai, Manila. Let's say we want to get from San Diego to Manila with at most three stops along the way: For example, the trip going from San Diego through San Franeisco, then Honolulu; then Shanghai, then Manila is a trip with exactly three stops_ 5.1 Use Matlab to list all possible ways to get from San Diego to Manila with exactly three stops_
During domestic layovers, you are permitted to leave the airport. For instance, it is acceptable and safe to exit the airport if you are a US citizen and have a stopover inside the nation.
It's simple. Use Skyscanner's multi-city flight search feature to book and travel to several locations with just one easy search by selecting "multi-city" instead of "roundtrip" or "one way." Additionally, it's a terrific method to find the top discounts. Although these words are frequently used in the same sentence, they do not mean the same thing. The period of time between two flights known as a layover is spent at the airport. The next aircraft on your itinerary that you are awaiting to board at the airport is known as a connecting flight.
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the baxter laboratory building acts like a cable-stayed bridge in the way the roof is supported. group of answer choices true false
The statement 'the baxter laboratory building acts like a cable-stayed bridge in the way the roof is supported' is true.
The Baxter Laboratory Building is a unique structure, acting like a cable-stayed bridge in the way the roof is supported.
Unlike traditional bridges, where the cables are connected to an abutment or pillar, the Baxter Laboratory Building has its cables connected directly to the roof, creating an arch-like structure.
This unique construction style allows for greater stability and load-bearing capabilities, making the Baxter Laboratory Building a truly remarkable structure.
The roof is held up by pillars, which are connected to the roof with cables. This design helps to reduce the weight of the roof, making it easier to support and increasing its strength.
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what has the small engine and implement industry done to control emissions
Answer:
The small engine and implement industry has adopted a variety of emission control technologies to reduce pollution from engine and implements. Major innovations include direct fuel injection, spark ignition, catalytic converters, fuel reformulation, and combustion optimization. These technologies reduce the amount of hazardous air pollutants (HAPs) released into the environment. In addition, the industry has implemented stringent pollution control regulations and certification standards to further protect the environment from hazardous emissions. The main reason why the small engine and implement industry has implemented emission control techologies is to meet the requirements of Environmental Protection Agency (EPA) regulations and reduce local air pollution.
how many 8 bit strings contain at least 1 "1"?
Answer:
There are 256 8-bit strings in total, and 128 of them contain at least one "1" (half of the total number of strings).
upon failure of the normal supply, a legally required standby system is required to be available in ? or less.
For all of the following options d, optional standby systems, as classified by the AHJ, would typically be required.
What kind of backup mechanism is available? systems created to supply electricity to public or private buildings or other objects when the system's operation is not essential for life safety. These systems are made to deliver locally generated or stored power to specified loads automatically or manually. What are the three different kinds of backup power systems? According to NFPA 70: National Electrical Code, there are three types of emergency and standby power systems: emergency power, legally required backup power, and voluntary standby power (NEC). Passive Optical Network is a PON. PON, which is based on fiber-optic telecommunications technology, is used to provide individualized end users with broadband network access. It enables a service provider to maintain an effective broadband connection for numerous end users via a single fiber (homes and small businesses).
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Let P(n) be the statement that 1^3 + 2^3 + 3^3 + + n^3 = (n(n+1)/2)^2 for the positive integer n. What is the statement P(1)? Show that P(1) is true, completing the basis step of the proof. What is the inductive hypothesis? What do you need to prove in the inductive step?Complete the inductive step, identifying where you use the inductive hypothesis.
One must first assume the inductive hypothesis for n before using that assumption to demonstrate that the assertion is true for n + 1. This is known as the induction step.
What does inductive reasoning in math class 11 mean?This means that the assertion P(n) is true for n = k + 1 if and only if the supplied statement holds true for some prime number k. This is sometimes referred to as the "inductive step," and the "inductive hypothesis" is the presumption because P(n) is valid for n=k.
What does induction mean exactly?Electromagnetic induction, or simply induction, is the technique of creating electrical charge in a conductor by exposing the conductor to a fluctuating magnetic field.
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a chemical fume hood is a primary engineering control. which of the following describes how it works with the building exhaust system?: a. all air in the fume hood is exhausted outside of the building b. all air in the fume hood is filtered and recycled back into the lab c. all air in the fume hood is filtered and recycled back into the building air supply d. none of the above
The exhaust system collects exhaust gases from the cylinders, removes pollutants, reduces noise levels, and directs the purified exhaust gases away from the occupants at appropriate locations within the vehicle.
What is Exhaust system?Depending on the engine, the exhaust system consists of he one or he two channels. Flow resistance should be chosen so that exhaust back pressure has as little impact on engine performance as possible.
For an exhaust system to work properly, it must be thought of as a whole and developed accordingly. This means that the component must be matched by the designer to be specific to the vehicle and engine.
All internal combustion engines produce an "exhaust noise" due to the pulsating ejection of gases from the cylinders. This noise should be attenuated by reducing the acoustic energy of the exhaust stream.
Therefore, The exhaust system collects exhaust gases from the cylinders, removes pollutants, reduces noise levels, and directs the purified exhaust gases away from the occupants at appropriate locations within the vehicle.
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The air gap of an automotive air-conditioning compressor is the space between the
clutch assembly and the air-conditioning pulley.
true
false
The given statement is TRUE.
Why is this true?In an automotive air-conditioning system, the compressor is responsible for compressing and circulating refrigerant.
The compressor is typically driven by the engine through a belt and pulley system. The air gap is the space between the clutch assembly, which connects and disconnects the compressor from the engine, and the air-conditioning pulley, which is connected to the compressor and driven by the belt.
The purpose of the air gap is to provide clearance between these two components, which allows the clutch to disengage and the compressor to spin freely when the air-conditioning system is not in use.
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A long 35-cm-diameter cylindrical shaft made of stainless steel 304 (k = 14. 9 W/m2·K, rho = 7900 kg/m3 , cp = 477 J/kg·K, and α = 3. 95 × 10-6 m2 /s) comes out of an oven at a uniform temperature of 500°C. The shaft is then allowed to cool slowly in a chamber at 150°C with an average convection heat transfer coefficient of h = 60 W/m2 ·K. Determine the temperature at the center of the shaft 20 min after the start of the cooling process. Also, determine the heat transfer per unit length of the shaft during this time period
Write a program to display the names of five friends in different lines
Answer:
this is answer
Explanation:
Cls
for i =1 to 5
input "enter the name";n$
print n$
next i
end
Calculate the polar radius of gyration of the shaded area about its centroid C. Assume t = 130 mm, a = 465 mm, b = 565 mm ko = ... mm
The shaded area's polar radius of gyration around its centroid C. Assume t = 130 mm, a = 465 mm, b = 565 mm ko = 253 mm.
The difference between the area of the complete polygon and the area of the unshaded portion inside the polygon is the area of the shaded region. There are two methods for the area of the shaded component to appear in polygons. The darkened area can be found either in the polygon's centre or on one of its sides. You might occasionally be necessary to determine the size of shaded areas. The area of the shaded zone is often calculated by deducting the area of a smaller inner form from the area of a larger outer shape. "Sector" of a circle is represented by the darkened area. A sector is the area of a circle that is bounded by two radii and an arc.
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In approximately 50 words, explain how to fast track the construction of a hospital and what type of construction firm would be best suited for the project.
Which statement is true regarding the energies of the bonds that break and form during a highly endothermic reaction?
The energy needed to break the required bonds is less than the energy released when the new bonds form.
The energy needed to break the required bonds is about the same as the energy released when the new bonds form.
The energy released when the required bonds break is less than the energy absorbed when the new bonds form.
The energy released when the required bonds break is greater than the energy absorbed when the new bonds form.
The energy needed to break the required bonds is greater than the energy released when the new bonds form.
An endothermic reaction involves the absorption of energy. As a result, the product has more energy than the reactant. Therefore, the assertion is true.
Less energy is released when new bonds form than is needed to break the essential bonds. More energy is needed to break the essential connections than is released when a switch is turned on. The reactants in endothermic processes have stronger bonds and greater bond energies than the products. Compared to weak bonds, strong bonds have less potential energy. As a result, the reactants' energy is lower than the products. An endothermic reaction involves the absorption of energy. As a result, the product has more energy than the reactant. Therefore, the assertion is true.
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what are five reasons expressways have lower collision rates than other highways? (222) what are four different types of expressway interchanges (222-233) 3. what strategies can you follow for low risk driving on exprewways (223-224) obser obse
On expressways, there were around 38.6% of injuries, compared to 61.4% on rural roads. Although 89.1% of encounters resulted in minor or major crashes, 10.9% of interactions were fatal.
What does an accident entail?Accidents are unanticipated events that frequently result in loss, damage, and sometimes even injury. Every year, a large number of people have significant disabilities or injuries as a result of accidents, which are common in human existence. There is often property damage or personal injuries in accidents.
What accident mishaps?drivers who are intoxicated or fatigued, drive excessively quickly, recklessly, break the law, or ignore traffic signs. Ignorance, carelessness, inappropriate crossing, veering into the right-of-way, nor jaywalking are all pedestrian errors.
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Which of these was an early marine vessel that used a petroleum-filled float chamber coupled with a physically separated pressure sphere for the passengers?
a. jason
b. trieste
c. rovs
d. alvin
Can you label the steps of energy production at a coal-fired power plant? Moving clockwise, label the steps of energy production in this diagram of a coal-fired power plant.
1. Coal is burned in the furnace
2. Heat from combustion boils water
3. Steam turns the turbine
4. Magnets are moved past copper coils to generate current
5. Steam is cooled and condensed
6. Air pollutants are filtered out
7. Toxic ash is taken to a hazardous waste disposal site
Label the steps involved in producing energy in this illustration of a coal-fired power plant in a clockwise direction.
1). Firstly, the furnace burns coal.
2). Heat from burning causes water to boil.
3). Steam drives the turbine.
4). In order to produce current, magnets are moved past copper coils.
5). Condensed steam is cooled.
6). Filters are used to remove air contaminants.
7). Toxic ash is transported to a disposal facility for hazardous waste.
Energy is the ability to conduct work in physics. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other forms. Additionally, there is heat and work, which is energy moving from one body to another. Energy is always identified in accordance with its nature once it has been transferred. Therefore, the heat transported may manifest as thermal energy while work performed may result in mechanical energy.
Motion is a property of all energies. Anybody in motion, for instance, possesses kinetic energy. Even while at rest, a tensioned object like a spring or bow has the capacity to move; this is because of the way it is built.
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When a system has several control-sensing and response requirements, which is best to use?
A. Electric control
B. Pneumatic control
C. Modulating control
D. Electronic control
Answer:
A. Electric Control
Explanation:
A. Electric Control
A system of parallel, non-concurrent forces acting on a body can be reduced to which of the following:
A. One resultant force and one resultant moment acting at any point on the body
B. One resultant force acting at a specific point on the body
C. Both of the above
D. None of the above
A system of parallel, non-concurrent forces acting on a body can be reduced by One resultant force and one resultant moment acting at any point on the body and One resultant force acting at a specific point on the body. Thus, C. Both of the above is correct.
What is non-concurrent forces?Two or more forces that share a common line of action but have equal magnitudes but act in opposite directions are said to be non-concurrent forces. In plain English, this means that a system of forces is said to be non- concurrent when its components do not intersect at a single point. A concurrent force system, however, has a common point through which all forces pass.
Combined forces that don't add up to zero are considered non-concurrent forces. The fact that a couple's line of action does not intersect at one point makes them an example of a non-concurrent force. When it comes to mechanics, a couple is a system of forces with a resultant (net, or sum) moment but no resultant force.
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describe one type of plate boundary found on earth.
There is a diverging border formed when two tectonic plates separate. Earthquakes frequently happen at these borders as magma (molten rock) flows from the Earth's mantle to the top and solidifies to create fresh oceanic crust.
The widely recognized scientific hypothesis that the Earth's lithosphere is composed of a number of massive tectonic plates that have been gently moving since about 3.4 billion years ago is known as Platonic movement (from the Late Latin: tectonicus, from the Ancient Greek: v, lit. "pertaining to construction"). The continental drift theory, which was developed in the early 20th century, is the foundation of the model. Following the confirmation of seafloor spreading in the mid- to late 1960s, plate tectonics became widely accepted by geoscientists. According on how they are defined, the solid outermost shell of the planet, known as the lithosphere, is divided into seven or eight large plates, as well as several smaller plates or "platelets." The kind of plate boundary—convergent, divergent, or transform—determines where the plates converge. Along these plate boundaries, earthquakes, volcanic activity, mountain-building, and the creation of oceanic trenches all occur (or faults). The relative motion of the plates normally varies between 0 and 10 cm every year.
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7) The heat from students, from lights, through the walls, and so forth to the air moving through a classroom is 18000 kJ/hr. Air is supplied to the room from the air conditioner at 17C. The air leaves the room at 27C. Determine the following: (a) Air mass flow rate (kg/s), (b) Air volumetric flow rate m3/hr at inlet conditions (c) Duct diameter (m) for an air velocity of 3 m/s.
The mass flow rate is 1791.04 kg/s, the air volumetric flow rate is 1462.1 m^3/hr and the duct diameter is 24.91m
a) 1791.04 kg/s
b) 1462.1 m^3/hr
c) 24.91 m
What is Air flow rateAir flow rate refers to the amount of air that is moving through a given area in a specific period of time. It is typically measured in units of volume per unit of time, such as cubic feet per minute (cfm) or cubic meters per hour (m³/hr).
a) To determine the air mass flow rate, we need to know the heat load of the room and the specific heat of air. The heat load is given as 18000 kJ/hr. The specific heat of air is approximately 1.005 kJ/kg·K. To calculate the air mass flow rate, we use the equation:
mass flow rate = heat load / (specific heat x temperature difference)
mass flow rate = 18000 / (1.005 x (27 - 17)) = 18000 / (1.005 x 10) = 1791.04 kg/s
b) To determine the air volumetric flow rate at inlet conditions, we need to know the density of air at 17 °C. The density of air at 17°C is approximately 1.225 kg/m^3. To calculate the air volumetric flow rate, we use the equation:
volumetric flow rate = mass flow rate / density
volumetric flow rate = 1755.37 / 1.225 = 1462.1 m^3/hr
c) To determine the duct diameter for an air velocity of 3 m/s, we need to know the volumetric flow rate, the air velocity and the cross-sectional area of the duct. To calculate the cross-sectional area of the duct, we use the equation:
volumetric flow rate = air velocity x area
Area = volumetric flow rate / air velocity
Area = 1462.1 / 3 = 487.37m^2
To find the diameter of the duct we use the equation
D = 2 * (Area / π)^(1/2)
D = 2 * (487.37 / π)^(1/2) = 24.91m
Therefore, the duct diameter is 24.91 m
Note: These calculations are based on ideal gas laws, Also the density and specific heat of air changes based on temperature and pressure also the velocity also depends on the friction loss in the duct and the air pressure, these calculations are just an approximation.
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technician a says that when cleaning a battery you should wear gloves, a dust mask, and safety goggles. technician b says to clean battery terminals you can use a baking soda solution. who is correct? group of answer choices
The correct response is Both Technician A and B. Technician says that when cleaning a battery you should wear gloves, a dust mask, and safety goggles and to clean battery terminals you can use a baking soda solution.
Baking soda and bicarbonate of soda are just different names for the same product, despite what you may think. When bicarbonate of soda comes in a recipe, it is just baking soda. Bicarb soda and baking soda can be used interchangeably. Bicarb soda is the name used in Australia, New Zealand, and the UK, whereas baking soda is used in the US. Baking soda is a leavening agent used in baked goods like cakes, muffins, and cookies. It is a white, crystalline powder that is naturally basic or alkaline and is formally known as sodium bicarbonate. Baking soda is activated when combined with an acidic substance and a liquid.
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technician a says that when cleaning a battery you should wear gloves, a dust mask, and safety goggles. technician b says to clean battery terminals you can use a baking soda solution. who is correct? group of answer choices
Technician A only
Technician B only
Both Technician A and B
Neither Technician A nor B
Find the number of vertices, the number of edges, and the degree of each vertex in the given undirected graph. Identify all isolated and pendant vertices.
The vertices based on the information will be:
1. 6 vertices, 1 pendant vertex(c), 1 isolated vertex(d),6 edges
2. 5vertices,15 edges, 0 isolated vertex, 0 pendant vertex
3. 9 vertices,2 isolated,0 pendant,12 edges
What is the vertex?Vertex is a node in graph and represented as dot or circle in the diagram
Degree is the total number of of edges through a vertex is known as degree (In a undirected graph, a self-loop adds two to the node's degree)
An isolated vertex is a vertex with degree zero
An pendant vertex is a vertex with degree 1. It can also be refered to as leaf node.
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a high waist-to-hip ratio is an indication of a group of answer choices high allostatic load. low pendicular load. low allostatic load. high pendicular load.
The correct answer is high allostatic load a high waist-to-hip ratio is an indication of a group.
Allostatic load is the weight that results from collected life events and ongoing stress. Different physiological systems engage in varying levels of interaction with one another.Allostatic overload results when environmental obstacles are greater than a person's capacity to handle them. High levels of racial antagonism and discrimination, poor income, and low educational attainment all strongly predicted high allostatic load levels in a longitudinal community-based investigation on a multiethnic sample of midlife women [65]. In certain investigations, allostatic stress and years of schooling were inversely correlated [61, 73, 79, 90–92].
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according to moore's law, if a chip (ic) can contain 10,000 transistors in a given year, about how many transistors can a chip contain 10 years later?
The values of ni span many orders of magnitude because the data span 40 years, and it is convenient to apply Moore's Law to its logarithm because it has a linear relationship.
The pace of increase is a little less definite in the long run, but there is no reason to think it won't be practically constant for at least 10 years. According to Moore, device complexity (greater circuit density at lower cost) and time have a log-linear relationship. Moore's law has moved from a general development of chips to a matter of performance enhancement through specialization, even while transistor sizes are being decreased in slower cycles (the 2nm barrier will be reached in 2025).
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Martinez Construction, a large firm that has traditionally taken on many different types of projects, has begun to struggle. Many smaller firms in its area have found market sectors that they serve exclusively, such as building athletic facilities for one business, business centers for another, and affordable small-income housing for yet another. These businesses have been taking business away from Martinez, even though Martinez has greater resources than any of them. From this example, what do you think is the problem for Martinez?
Martinez needs to find ways to serve the specialized markets in its area better.
Martinez needs to find ways to serve the specialized markets in its area better.
Martinez needs to update its image because it has been in its market too long.
Martinez needs to update its image because it has been in its market too long.
Martinez needs to advertise its size and resources as selling points in its market.
Martinez needs to advertise its size and resources as selling points in its market.
Martinez needs to be smaller in order to respond more dynamically to customer needs.
Martinez needs to be smaller in order to respond more dynamically to customer needs.
Refer to the graphic. What type of cabling is shown? a. STP b. UTP c. Coax d. Fiber
STP cable employs four of wires, each of which is shielded with foil and then covered with a metal braid or foil overall.
What kind of cable is UTP?Unshielded twisted-pair cable is known as UTP. A 100 ohm cable called a UTP cable has 2 to 1800 coaxial cables pairs that are encased in an outer jacket. They don't have a metal shield. As a result, the wire has a small diameter yet is not shielded from electrical interference.
UTP or FTP, which is preferable?For instance, Unshielded twisted - pair (unshielded twisted pair cables can be a good choice if you intend to install Network cable in your home. But if you wish to use other Gigabit Ethernet and PoE (Power through Ethernet) applications.
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