Give the general layout of centrifugal pump.​

From what my research concluded, true

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True

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The pyramids are important to the study of engineering because they were some of the first structures built using engineering principles. The pyramids are an example of how engineering can be used to create amazing structures.

What is pyramid?

A pyramid is a structure with triangular exterior surfaces that converge to a single step at the summit, giving the shape the shape of a pyramid in the geometric sense. A pyramid's base can be trilateral, quadrilateral, or any polygon shape. A pyramid, as a result, has at least three exterior triangle surfaces. A typical variant is the square pyramid, which has a square base and four triangular exterior surfaces. The design of a pyramid, with the majority of the weight closer to the bottom and the pyramidion at the apex, means that less material will be pushed down from above. This weight distribution enabled early civilizations to build stable massive constructions.

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Answer:

uehgeg7djw7heidiisosowiuisiejei2k

The correct option that denotes the sorted list is option a. {1, 2, 3, 4, 5, 7, 9}.

A set is a data structure that stores unique elements in no particular order. When we insert the elements 1, 2, 9, 1, 2, 3, 1, 4, 1, 5, 7 into a set, the duplicate elements are removed and we are left with the set {1, 2, 3, 4, 5, 7, 9}.

When we convert this set into a list and sort it in ascending order, we get the list [1, 2, 3, 4, 5, 7, 9]. This is the same as option a. {1, 2, 3, 4, 5, 7, 9}.
Therefore, the correct answer is option a. {1, 2, 3, 4, 5, 7, 9}.

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Answer:

oh god... i have no idea lm.ao

Explanation:

Answer:

I think it's 23 ohms.

Explanation:

Not entirely sure about it.

hope this helps

Answer:

STICK SKILL DRILL...

Explanation:

The skill drill uses a Whip and Pause technique.The reason for whip and pause is that 6010 electrodes are fast freezing electrodes and the momentary whips allow the puddle to solidify a bit ..Length of Art..Too long an arc causes problems so try to keep the arc equal to or shorter than diameter of electrode.

We can approximate 1 atm by 100 kpa. if a tire's gage pressure is 200 kpa. The absolute pressure in the tire would be 300 kPa.

The pressure in a tire is expressed in terms of gauge pressure and absolute pressure. Gauge pressure is the pressure measured relative to the atmospheric pressure, whereas absolute pressure is the pressure measured relative to a perfect vacuum.

One atmospheric pressure is commonly defined as 100 kPa, so we can approximate 1 atm to be 100 kPa. If a tire's gauge pressure is 200 kPa, it means that the tire pressure is 200 kPa above atmospheric pressure. To convert this gauge pressure to absolute pressure, we add it to the atmospheric pressure of 100 kPa. Thus, the absolute pressure in the tire would be 200 kPa + 100 kPa = 300 kPa.

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The total degree of a tree with n vertices is (n - 1).

In a tree, each vertex (except for the root, if defined) is connected to exactly one parent vertex through a single edge. Therefore, each vertex, except for the root, has a degree of 1 (one incoming edge). Additionally, each vertex can have multiple children, but since it is a tree, there are no cycles or loops.

Considering this, we can calculate the total degree of a tree by summing up the degrees of all the vertices. The degree of the root vertex is 0 (no incoming edges), and for the remaining (n - 1) vertices, the degree is 1. Hence, the total degree of a tree with n vertices is (n - 1).

This relationship holds true for any tree, regardless of its specific structure or shape, as long as it satisfies the properties of being acyclic and connected.

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The statement "Bankfull flow is the discharge where water just begins to leave the stream channel and spread onto the floodplain" is false. Bankfull discharge is defined as the flow at which water just fills the channel without overtopping the banks and inundating the floodplain.

Bankfull flow is the maximum flow (usually measured in m³/s) that a river channel can carry without overflowing. The frequency of occurrence varies depending on the river, ranging from several times a year to once every several years. The water level at the time of bankfull discharge is called the "bankfull stage".

Bankful can also be interpreted as the water level or water level at which a stream, river, or lake lies on its upper bank and, if it increases further, water flows into the floodplain.

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Z≤ -4.852 ft, Maximum efficiency is η≅ 0.88 ≅ 88% is the maximum discharge possible

Solution

Given Data:-

D = 14.62in, N = 2134 rc/min, T=20°C. At T= 20°C ɣ=ρg= 62.35 lb/ft³, vapor pressure. Pv = 49.2 lb/ft².

The efficienies at each flow rate is computal by using formula

η = ρgθH / (550) (bhp)

→ As we can See the maximum efficiency point is at θ = 6ft³/s (close to 6ft³/s)

Maximum efficiency is η≅ 0.88 ≅ 88%

b) Given NPSHR = 16 ft,hg=22ft. Zactual. = 9ft  (below the sea surface)

To avoid cavitation NPSH < Pa - Pv/ρg - Z - hf

Z < Pa - Pv/ρg - hf

Z < 2116 - 49.2/62.35 - 16 - 22 [1 atm = 2116 lb/ft2]

Z≤ -4.852 ft

-> Keeping the pump 9 ft below the surface gives 4.148 ft of marign against cavitation.

Hence it is Sufficient to avoid cavitation.

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Answer:

The container should be made of lead and the liquid should be water.

Explanation:

Since the volume of the container of liquid after expansion is V = V₀(1 + βΔθ) where V = initial volume, β = coefficient of volume expansion, Δθ = temperature change.

So, the volume change V₂ - V₁ where V₁ = volume of liquid and V₂ = volume of container

For steel, V₂ = V₀(1 + β₂Δθ) and V₁ = V₀(1 + β₁Δθ)

So, ΔV = V₀(1 + β₂Δθ) - V₀(1 + β₁Δθ) = V₀[1 + β₂Δθ - 1 - β₁Δθ] = V₀[β₂Δθ - β₁Δθ]

Since we want a minimum value for ΔV and V₀ and Δθ are the same, we need ΔV/V₀Δθ = β₂ - β₁ to be a minimum

where β₂ = coefficient of volume expansion of liquid and β₁ = coefficient of volume expansion of container.

So, trying each combination, with  β₂ = 207 × 10⁻⁶ (C°)⁻¹] and β₁ = 36 × 10⁻⁶ (C°)⁻¹

β₂ - β₁ = 207 × 10⁻⁶ (C°)⁻¹ - 36 × 10⁻⁶ (C°)⁻¹ = 171 × 10⁻⁶ (C°)⁻¹

With  β₂ = 207  × 10⁻⁶ (C°)⁻¹] and β₁ = 87  × 10⁻⁶ (C°)⁻¹

β₂ - β₁ = 207 × 10⁻⁶ (C°)⁻¹ - 87 × 10⁻⁶ (C°)⁻¹ = 120 × 10⁻⁶ (C°)⁻¹

With  β₂ = 1120 × 10⁻⁶ (C°)⁻¹] and β₁ = 36  × 10⁻⁶ (C°)⁻¹

β₂ - β₁ = 1120 × 10⁻⁶ (C°)⁻¹ - 36 × 10⁻⁶ (C°)⁻¹ = 1084 × 10⁻⁶ (C°)⁻¹

With  β₂ = 1120 × 10⁻⁶ (C°)⁻¹] and β₁ = 87 ×  10⁻⁶ (C°)⁻¹

β₂ - β₁ = 207 × 10⁻⁶ (C°)⁻¹ - 87 × 10⁻⁶ (C°)⁻¹ = 1033 × 10⁻⁶ (C°)⁻¹

The combination that gives the lowest value for β₂ - β₁ is β₂ = 207 × 10⁻⁶ (C°)⁻¹] and β₁ = 87 × 10⁻⁶ (C°)⁻¹

Since  β₁ = 87 × 10⁻⁶ (C°)⁻¹ = coefficient of expansion for lead β₂ = 207 × 10⁻⁶ (C°)⁻¹]  = coefficient of expansion for water, the container should be made of lead and the liquid should be water.

The quality process that is used to validate that installed equipment or systems are operating as specified is known as commissioning or retro-commissioning. Commissioning is a rigorous process that verifies and documents that the facility or system meets or exceeds the owner's operational requirements and that all equipment and systems are installed and operating in accordance with the contract documents.

Retro-commissioning is the process of improving the performance of existing buildings and their equipment to improve energy efficiency, indoor air quality, and occupant comfort. Both processes require a systematic and integrated approach that includes planning, design review, construction oversight, functional testing, training, and documentation.Commissioning is often considered as a quality control process that is employed for new construction. Retro-commissioning, on the other hand, is more of a quality assurance process that verifies that existing buildings and equipment are operating as intended. In both cases, the process involves reviewing design documents, testing equipment and systems, and verifying that everything is operating in accordance with the owner's requirements. The process typically begins in the planning phase and continues through construction and occupancy. Commissioning and retro-commissioning can be applied to all types of buildings, including commercial, industrial, healthcare, and institutional facilities.In conclusion, commissioning and retro-commissioning are essential quality processes that help ensure that new and existing buildings and equipment are operating efficiently and as intended. The process requires a detailed and systematic approach that includes planning, design review, construction oversight, functional testing, training, and documentation.

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Answer:d

Explanation:

(d) chain drive belt drive gear drive

The chain drive belt drive gear drive. Thus option D is correct.

The power transmission includes the bulk of the electrical energy form the generating sites such as the power station or the power plant and send to the anelectric substation where the voltage gets transformed and distributed to the insurers on other substations.

They can be mechanical, electrical and hydrologic, etc. The power transmission can move the electricity over larger distances.

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Answer:

D. All the above

Explanation:

A is correct. The theory of formation of concrete is based on this phenomenon of formation of voids because, a coarse aggregate aggregate on its own, contain voids. When a fine aggregate like sand is added, it occupies these voids. Further, when finely powdered cement is added to the mixture, it further occupies the voids between the sand particles.

B is correct. The bulking of sand should be taken into account when volumetric proportioning of the aggregates is adopted. Otherwise, less quantity of concrete per bag of cement will be produced, which naturally will increase the cost of concrete. This is because sand particles when left on their own, do not pack properly near each other due to sand buckling, leaving too many void spaces between the sand particles.

C is correct . The dry sand and the sand completely flooded with water have practically the same volume. This is due to the bulking of sand. When water is added to the sand, up to complete flooding, the sand particles pack near each other and the amount of bulking of sand is decreased. The addition of the volume of water, leads to a decrease in the volume of the sand due to the extra voids. These cancels out to practically leave the dry sand and the flooded sand with the same volume.

The addictive properties of benzodiazepine drugs have been linked to their effects at the alpha 1 subunit of GABAA receptors. Benzodiazepines are a class of drugs that act as central nervous system depressants and are commonly prescribed for treating anxiety, insomnia, seizures, and muscle spasms.

They exert their therapeutic effects by enhancing the inhibitory neurotransmission of gamma-aminobutyric acid (GABA), the primary inhibitory neurotransmitter in the brain.

GABAA receptors are composed of different subunits, including alpha, beta, and gamma. Benzodiazepines bind to a specific site on the GABAA receptor complex, which is distinct from the GABA binding site. This interaction potentiates the effects of GABA, resulting in increased inhibitory neurotransmission.

The alpha 1 subunit of GABAA receptors has been implicated in the addictive properties of benzodiazepines. Studies have shown that benzodiazepines with a higher affinity for the alpha 1 subunit are more likely to produce dependence and addiction. Additionally, research using genetically modified mice has demonstrated that the absence of the alpha 1 subunit reduces the reinforcing effects of benzodiazepines, suggesting a key role for this subunit in addiction.

In summary, the addictive properties of benzodiazepines are associated with their effects at the alpha 1 subunit of GABAA receptors. Understanding the specific receptor subunits involved in addiction can help inform the development of new treatments for substance use disorders.

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Answer:

The temperature at which the water starts boiling is 111.35 °C.

Explanation:

First, we have to determine the total pressure experimented by water inside the piston-cylinder device. The total pressure is the sum of atmospheric and gauge pressures, the gauge pressure is the weight of piston divided by its cross-sectional area, that is:

\(P_{g} = \frac{m_{p}\cdot g}{A}\)

Where:

\(P_{g}\) - Gauge pressure, measured in pascals.

\(m_{p}\) - Mass of the piston, measured in kilograms.

\(g\) - Gravitational constant, measured in meters per square second.

\(A\) - Cross-sectional area, measured in square meters.

\(P_{g} = \frac{(51\,kg)\cdot \left(9.807\,\frac{m}{s^{2}} \right)}{(100\,cm^{2})\cdot \left(\frac{1\,m^{2}}{10000\,m^{2}} \right)}\)

\(P_{g} = 50015.7\,Pa\)

\(P_{g} = 50.016\,kPa\)

The total pressure of water is:

\(P_{t} = 100\,kPa + 50.016\,kPa\)

\(P_{t} = 150.016\,kPa\)

Temperature at which water starts boiling is the saturation temperature associated with total pressure, which can be obtained from property tables:

\(T_{sat} = 111.35\,^{\circ}C\)

The temperature at which the water starts boiling is 111.35 °C.

In the CGS system, the unit of charge is the charging unit (ESU). Also known as "Statistical Pendant" (StatC). In the CGS system, the load unit is the electromagnetic unit (E.M.E.).

The e.s.u. of charge, also known as franklin or statcoulomb, is the charge such that two similar q=1statC charges at a space of 1cm from each other exert an electrostatic force of 1dyn on each other.

The e.m.u. of current, also called the biot or abampere, is the current such that two infinitely-long straight, parallel conductors carrying 1abA of current and separated by 1cm exert a magnetostatic force of 2dyn on each other.

The relations between these units are such that

\(\frac{1 statC}{1 abA * 1s} = \frac{1 statC}{1abC} = \frac{1}{C} = \frac{1 statA}{1abA} = \frac{\frac{1 statC}{s} } {1 abA}\)

where c is the speed of light.

The ESU and EMU systems of electromagnetic units are different and they should generally be considered separate and independent (if relatively similar), and they do not coincide with the gaussian set of electromagnetic units.

For example, since the electrical displacement vector D is defined as \(E + 4\pi P\) in the ESU system and \(\frac{1}{c^{2} } E + 4\pi P\) the EMU system, it is not possible to exchange the formulas of one system for another without using a formula dictionary like the one at Jackson's end. There is not. classical electrodynamics.

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The strain rate remains constant at 200 mm/s regardless of the height of the work part during the deformation process.

To determine the strain rate at different heights during the deformation process, we can use the formula:

Strain rate = (change in height) / (change in time)

Given:

Starting height (h1) = 100 mm

Final height (h2) = 50 mm

Relative speed of the platens (v) = 200 mm/s

(a) At h = 100 mm:

Change in height = h1 - h2 = 100 mm - 50 mm = 50 mm

Strain rate = (change in height) / (change in time) = 50 mm / (50 mm / 200 mm/s) = 200 mm/s

(b) At h = 75 mm:

Change in height = h1 - h = 100 mm - 75 mm = 25 mm

Strain rate = (change in height) / (change in time) = 25 mm / (25 mm / 200 mm/s) = 200 mm/s

(c) At h = 51 mm:

Change in height = h1 - h = 100 mm - 51 mm = 49 mm

Strain rate = (change in height) / (change in time) = 49 mm / (49 mm / 200 mm/s) = 200 mm/s

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Two technicians are discussing solder repair. Technician A says that solder should be applied to the soldering iron tip while soldering Technician B says that the solder should be applied to the wire joint while soldering. The correction technician is: "Both Technician A and B (Option C)

Soldering is a joining method that uses solder to bind several metals together. Solder is a metal alloy typically composed of tin and lead that is melted using a hot iron.

The iron is heated to a temperature above 600 degrees Fahrenheit before cooling to form a strong electrical connection. To put it another way, soldering is the process of uniting metal pieces to produce a mechanical or electrical link.

It commonly employs a low melting point metal alloy (solder), which is heated and applied to the metal pieces to be connected, and when the solder solidifies, it attaches to the metal parts and makes a connection.

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Full Question:

Two technicians are discussing solder repair. Technician A says that solder should be applied to the soldering iron tip while soldering Technician B says that the solder should be applied to the wire joint while soldering. Who is Correct?

Answer:

A) F = 0.011 N

B) ΔP = 5.6 N/m²

Explanation:

We are given;

surface tension coefficient; S = 0.07 N/m

Radius; r = 2.5 mm = 0.025 m

A) Formula to find the surface tension force(F) is given by;

F = SL

Where L is effective length = 2πr

F = 0.07 × 2π × 0.025

F = 0.011 N

B) Formula for difference in pressure droplet is;

ΔP = 2S/r

Thus;

ΔP = (2 × 0.07)/0.025

ΔP = 5.6 N/m²

The information depicted shows that both technicians are correct.

This is an individual who overlooks the technical equipment in an organization.

In this case, on the full floating axle, there are two tapered roller bearings between the hub and the outside of the axle housing.

Also in a semi-floating axle, the axle supports the weight of the vehicle and is also subject to bending forces as the vehicle corners.

Therefore, they're both correct.

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Answer:

A hammer and a wrench

Explanation:

Answer:

Explanation:

R-744 is seen as the 'perfect' natural refrigerant as it is climate neutral and there is not a flammability or toxicity risk. It is rated as an A1 from ASHRAE. While it is non-toxic there is still risk if a leak occurs in an enclosed area as R-744 will displace the oxygen in the room and could cause asphyxiation

Answer:

Under cold air standard conditions, the thermal efficiency of this cycle is 56.9 percent.

Explanation:

From Thermodynamics we remember that thermal efficiency of the ideal Otto cycle (\(\eta_{th}\)), dimensionless, is defined by the following formula:

\(\eta_{th} = 1-\frac{1}{r^{\gamma-1}}\) (Eq. 1)

Where:

\(r\) - Compression ratio, dimensionless.

\(\gamma\) - Specific heat ratio, dimensionless.

Please notice that specific heat ratio under cold air standard conditions is \(\gamma = 1.4\).

If we know that \(r = 8.2\) and \(\gamma = 1.4\), then thermal efficiency of the ideal Otto cycle is:

\(\eta_{th} = 1-\frac{1}{8.2^{1.4-1}}\)

\(\eta_{th} = 0.569\)

Under cold air standard conditions, the thermal efficiency of this cycle is 56.9 percent.

It should be noted that when we talk about internal controls, we really just mean the rules that an organization needs to follow in order to run efficiently.

sufficient to accomplish a task; producing the desired or anticipated result: Techniques for teaching that are effective; calm procedures. currently in force or operation; active: At midnight, the statute becomes effective. A strong photograph creates a vivid or enduring memory.

Effectiveness frequently refers to things like laws, treatments, cases, and procedures that succeed in achieving their objectives. Efficacy can also be awarded to individuals when they achieve their objectives, but this definition is more common.

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Answer:

The volume for this is 29.7

Explanation:

Trust me on this I'm an expert

Answer:

True

Explanation:

Those are the exact uses of a resistor

Answer:

a rock is made up of two or more minerals but a mineral is a natural substance with chemical and physical properties