(a) Classify any FOUR (4) of the Gestalt Principles and describe on each of these principle with relevant diagrams.
[16 marks]
(b) Illustrate the function of an Iterative Development Model with an aid of a diagram and describe THREE (3) advantages of using the diagram.
[9 marks]

Answer:

The correct answer is "\(O (n\times Log n)\)". A further explanation is given below.

Explanation:

Branch-circuit conductors shall have an ampacity that is sufficient to safely carry the maximum load they are intended to serve. The ampacity of branch-circuit conductors is determined based on the anticipated current demands of the connected loads.

The National Electrical Code (NEC) provides guidelines and ampacity tables that help determine the minimum required ampacity for branch-circuit conductors based on the type of conductor, insulation rating, and the maximum allowable temperature rise.

It is important to correctly size the branch-circuit conductors to ensure they can handle the expected load without exceeding their ampacity. Undersized conductors can result in overheating, voltage drop, and potential hazards. Oversized conductors may not be cost-effective and can take up unnecessary space.

To determine the appropriate ampacity for branch-circuit conductors, factors such as the type and number of connected devices, continuous loads, and future expansion should be considered. It is recommended to consult the NEC or a qualified electrical professional to ensure compliance with the specific requirements and calculations for ampacity determination.

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1- Distribution occurs between every pair of stages in the supply chain. Therefore, distribution includes moving of raw materials from suppliers to retailers.

2- The process of designing a distribution network that is visualized includes a decision like selling products directly to the end consumers.

3- When you want your received ordered product online to be changed by the eRetailer. This is an example of product availability.

4- When you receive an extra item as a gift from the package carrier. This is an example of product variety.

5- It is said in the relationship between response time and number of facilities that to be more responsive to customers, there is a need to limit the number of facilities.

6- In the relationship between response time and number of facilities, if customer is willing to wait longer than normal delivery days to get a book, then less number of facilities is an ideal distribution network design.

7- In the relationship between number of facilities and inventory costs, if inventory costs are increasing, this means that the number of facilities are decreasing.

8- In the relationship between number of facilities and transportation costs, there is decrease in the total transportation cost if number of facilities are increased and inbound lot sizes are very small to a point of losing economies of scale in inbound transportation.

9- In the relationship between number of facitlities and facility costs, to achieve supply chain effeciency in facility in terms of cost, there should be more number of facilities to get closer to the end customers.

10 In the variation of logistics cost and response time with number of facilities, the total logistics cost can be decreased and/or increased. The total logistics cost is increased when the response time is faster and the number of facilities are increased beyond the point of a minimized total logistics costs.

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The employee has set up an automation that can easily transfer files in a particular folder on their pc to a remote drive for archiving, but there is a particular condition;

the automation process will only run when the files are more than six months old. This process helps in reducing the load of data that is required to be stored in the pc, making it more efficient and productive. There are various reasons why an employee would set up such an automation process.

One of the reasons could be to keep the system less cluttered by moving the older files to the remote drive where it can be easily accessed in the future. Another reason could be to maintain the proper storage of files to avoid the risk of data loss in the system. In conclusion, the automation set up by the employee for transferring old files to a remote drive for archiving is an effective way to ensure proper data management and to increase the system's efficiency.

The process has made it easier for employees to access old files without making the system's storage cluttered. The automation process is a way of ensuring that data is effectively managed while making the most out of the system resources available. The end goal of such a process is to ensure a smooth workflow in an organization.

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Answer:

My guess is toxicty from gas fumes. Hope this helps

Explanation:

One of the four characteristics of hazardous waste is Toxicity. That is option B.

A hazardous waste is any material or substance that is capable of harming living organisms and making the environment dangerous for to live in.

The characteristics of a hazardous waste include:

Therefore, one of the four characteristics of hazardous waste is Toxicity.

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Answer:

They both have the same efficiency.

Explanation:

The simple ideal Rankine cycle and an ideal regenerative Rankine cycle with one open feedwater heater would both have the same efficiency because the extraction steam would just create a mini cycle that recirculates. The energy given to the feedwater heater is proportional to the added heat in the boiler to the feedwater in the simple cycle to raise its temperature to the same boiler inlet condition.

Therefore in comparison, the efficiency is the same for both.

The tensile strength of iron-carbon alloys with martensite microstructure is highest to the lowest in the order given below:

(a) > (c) > (d) > (b)

Explanation:0.25 wt%C with martensite has the highest tensile strength as the martensitic microstructure is composed of a fine, needle-like ferrite phase that is formed by rapid quenching.

0.60 wt%C with fine pearlite is the second highest.

Fine pearlite microstructure is formed by a eutectoid reaction.

It has high tensile strength due to the fine and homogeneous microstructure.

0.60 wt%C with bainite microstructure has lower tensile strength compared to fine pearlite.

Bainite is a needle-like structure formed by the austenite's rapid quenching.

It has a lower carbon concentration than martensite.

0.60 wt%C with tempered martensite has the lowest tensile strength.

The tempered martensite microstructure is formed by tempering the martensite above the critical temperature.

It is characterized by coarser carbide precipitation in the ferritic matrix, leading to a reduction in strength.

Therefore, the rank of iron-carbon alloys and associated microstructures from the highest to the lowest tensile strength is (a) > (c) > (d) > (b).

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Answer:

i) SF = 0.83

ii) 10 psi

iii) 3.16 psi

iv) 0.0083

Explanation:

Constant load = 1000 Psi

mean resistance = 1200 psi

Probability of failure = 1.9 * 10^-3

Determine

i) Safety factor

S.F =  1 / (mean load / load design ) = 1 / ( 1200 / 1000 ) = 0.83

ii) Standard deviation

1.9 X 10^-3 = e  ( -1/2 ( μ / б) ^3  /  (2.5 * 6  )

0.004756 = e^- 20000 / б^3

hence std = 10 psi

iii) Variance

= \(\sqrt{10}\) = 3.16 psi

iv) coefficient of variation

Cv = std / mean resistance

    = 10 / 1200 = 0.0083

Option C. Both A and B. As the cylinder leakage test requires the piston to be positioned at bottom dead center and a blown head gasket would leak past the exhaust valve.

Both Tech A and Tech B are correct. The cylinder leakage test is used to identify any potential leaks within the cylinder, and the piston needs to be positioned at the bottom dead center in order to perform the test properly. A blown head gasket is a common issue which causes leaks and generally these leaks are past the exhaust valve. Therefore, both Tech A and Tech B are correct in their statements.

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Answer:

No matter what u post on a football page, some fatherless dude will either say "pessi" or "penaldo"

Answer:

  4.5 m/s = 16.2 km/h

Explanation:

The speed is the ratio of distance to time:

  speed = (180 m)/(40 s) = 4.5 m/s

Answer: you forgot to add the rest of the Questions in.

Starting in 2019, the leak rate threshold for commercial refrigeration equipment with a full charge of 50 or more pounds of an HCFC refrigerant is 30%. This means that if the equipment leaks 30% or more of its total charge in a year, it is considered to be leaking and must be repaired.

This new leak rate threshold was established by the U.S. Environmental Protection Agency (EPA) under the Clean Air Act's Section 608, which sets standards for the handling of refrigerants. The EPA's goal is to reduce the emission of ozone-depleting substances, including HCFC refrigerants, which contribute to climate change and harm the environment.

To comply with the new leak rate threshold, owners and operators of commercial refrigeration equipment must conduct regular leak inspections and promptly repair any leaks that are detected. They must also keep records of their inspections and repairs for at least three years. Failure to comply with these requirements can result in penalties and fines.

In summary, the leak rate threshold for commercial refrigeration equipment with a full charge of 50 or more pounds of an HCFC refrigerant is 30% starting in 2019. Owners and operators of such equipment must conduct regular leak inspections and promptly repair any leaks to comply with EPA regulations.

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The seismic response of nuclear power plant structures is often calculated using lumped parameter methods. A finite element model of the structure is coupled to the soil with a spring-dashpot system used to represent the interaction process. The parameters of the interaction model are based on analytic solutions to simple problems which are idealizations of the actual problems of interest. The objective of the work reported in this paper is to compare predicted responses using the standard lumped parameter models with experimental data. These comparisons are shown to be good for a fairly uniform soil system and for loadings that do not result in nonlinear interaction effects such as liftoff. 7 references, 7 figures.

The correct answer choice for implementing the enqueue() method in a queue with a linked list in Java is append().

When implementing a queue using a linked list, the enqueue operation adds an element to the end of the list, as it follows the FIFO (First-In-First-Out) principle. The append() method in the linked list class would typically be used to add a new element at the end of the list, making it the most appropriate choice for the enqueue operation.

The other answer choices are not directly related to the enqueue operation in a queue implementation using a linked list:

removeafter() is used to remove an element after a specified node, which is not necessary for the enqueue operation.

prepend() is used to add an element at the beginning of the list, which does not follow the FIFO principle of a queue.

insertafter() is used to insert an element after a specified node, but it is not typically used in the enqueue operation of a queue.

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Answer:

It's to ensure a driver's safety.

A forecast as well as scenario model is a form of decision-making tool that uses the what-if Excel function.

Users of Microsoft Excel may format, arrange, and compute data together in spreadsheet. Data analysts or other customers can make data simpler to examine when data is added as well as altered by arranging the data using tools like Excel. The boxes in Excel are referred to as cells, and they are arranged in columns or rows.

In Microsoft Excel, an formula seems to be an expression that changes the values of a group of cells. These equations nevertheless provide a result, even if it's erroneous. Using Excel formulas, you may do operations like addition, subtraction, multiplication, as well as division.

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Answer:

Fast or wide-open throttle position

Answer:

See attachment for chart

Explanation:

The IPO chart implements he following algorithm

The expressions in bracket are typical examples

Input

Input Number (5, 4.2 or -1.2) --- This will be passed to the Processing module

Processing

Assign variable to the input number (x)

Calculate the square (x = 5 * 5)

Display the result (25) ----> This will be passed to the output module

Output

Display 25

The statement that The different taste qualities (sweet, sour, bitter, salt, umami) each have their own area of the tongue that is most sensitive to them is False.

Gate Theory states that competing signals such as rubbing your elbow can make you more sensitive to pain. This theory suggests that physical signals such as massage, pressure, heat, or cold can block the transmission of pain messages through the spinal cord and prevent them from reaching the brain. Therefore, when people rub their elbows or apply pressure to the area, this stimulates the non-painful touch fibers and decreases the transmission of the painful stimuli.

As per the statement, patients who are allowed to self-administer morphine use less than when they receive injections from healthcare providers is True. Olfaction is a very important sense for humans, and they often become depressed when they lose their sense of smell (olfaction). The statement that The different taste qualities (sweet, sour, bitter, salt, umami) each have their own area of the tongue that is most sensitive to them is False.

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True. Engineering drawings use a special language of lines, symbols, notes, and abbreviations to communicate important information about the design and construction of a product or system. This language is standardized and universally recognized within the engineering industry, allowing engineers and other professionals to understand and interpret the drawings accurately.True.

Engineering drawings use a special language of lines, symbols, notes, and abbreviations that are used to communicate important information about the design of a product or system. These drawings are typically created by engineers and designers using Computer-Aided Design (CAD) software, and are used to convey information to other engineers, manufacturers, and contractors.The language of engineering drawings includes a wide range of different symbols and notations, such as geometric tolerancing symbols, welding symbols, surface finish symbols, and material specifications. These symbols and notations help to convey important information about the design, such as the size and shape of features, the tolerances that must be maintained during manufacturing, and the materials and finishes that must be used.Overall, engineering drawings are a critical component of the design and manufacturing process, as they help to ensure that products and systems are designed and manufactured correctly, and meet the required specifications and standards. True, engineering drawings use a special language of lines, symbols, notes, and abbreviations to effectively communicate technical information and design specifications.

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Using the equations of statics, we can solve for the reaction forces and column loads. The final results are:

  RD3 = 5150 lb

  R = 6950 lb

  RC2 = 8400 lb

  VL = 1800 lb

Define reaction force.

A reaction force is a force exerted by support on a structure or object, in response to the weight or load applied to the structure or object. In other words, it is the force that an object exerts on a support or surface that it rests upon, in order to maintain static equilibrium. Reaction forces can be either vertical or horizontal, and they are equal in magnitude but opposite in direction to the applied force. These forces are essential to keep structures stable and in balance.

Here is the solution to the load-tracing problem:

1. Free-body diagram (FBD) for column D3:

Vertical load: 40 psf

Reaction force: RD3

2. FBD for girder G3:

Vertical load: 10 psf (dead load from beam B2) + 40 psf (live load from beam B2) + 10 psf (dead load from beam B3) + 40 psf (live load from beam B3) = 1800 lb

Horizontal load: 0 lb

Reaction force: R

3. FBD for column C2:

Vertical load: 10 psf (dead load from beam B3) + 40 psf (live load from beam B3) + 10 psf (dead load from girder G3) + 40 psf (live load from girder G3) = 3150 lb

Reaction force: RC2

4. FBD for beam B3:

Vertical load: 10 psf (dead load from beam B3) + 40 psf (live load from beam B3) = 500 lb

Horizontal load: 0 lb

Shear force: VL (vertical load from girder G3)

Moment: VL * L/2 (where L is the span of beam B3)

5. FBD for girder G2:

Vertical load: 10 psf (dead load from column B2) + 40 psf (live load from column B2) = 500 lb

Reaction force: RG2

6. FBD for column B2:

Vertical load: 10 psf (dead load from beam B2) + 40 psf (live load from beam B2) + 500 lb (vertical load from girder G2) = 2100 lb

Reaction force: RB2

7. FBD for beam B2:

Vertical load: 10 psf (dead load from beam B2) + 40 psf (live load from beam B2) = 500 lb

Horizontal load: 0 lb

Shear force: VR (vertical load from girder G3) + RB2 (vertical load from column B2)

Moment: VR * L/2 + RB2 * L/2 (where L is the span of beam B2)

8. FBD for girder G1:

Vertical load: 10 psf (dead load from column A1) + 40 psf (live load from column A1) = 500 lb

Reaction force: RG1

9. FBD for column A1:

Vertical load: 10 psf (dead load from beam A1) + 40 psf (live load from beam A1) + 500 lb (vertical load from girder G1) = 2100 lb

Reaction force: RA1

10. FBD for beam A1:

Vertical load: 10 psf (dead load from beam A1) + 40 psf (live load from beam A1) = 500 lb

Horizontal load: 0 lb

Shear force: RA1 (vertical load from column A1)

Moment: RA1 * L/2 (where L is the span of beam A1)

We can solve for the reaction forces and column loads. The final results are:

RD3 = 5150 lb

R = 6950 lb

RC2 = 8400 lb

VL = 1800 lb

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Answer:

The percentage of recycling in high socioeconomic localities is 11.02%.

Explanation:

Since in high socioeconomic localities, 10% of paper is recycled, 12% of plastic, 1.7% of fabrics, 1.2% of rubbers, 0.9% of metals, 3.5% of glass, 33% of food wastes, 35% soil and 1.9% miscellaneous, to determine the average recycling percentage the following calculation must be performed:

(10 + 12 + 1.7 + 1.2 + 0.9 + 3.5 + 33 + 35 + 1.9) / 9 = X

99.2 / 9 = X

11.02 = X

Therefore, the percentage of recycling in high socioeconomic localities is 11.02%.

Answer:

Ammeter

Explanation:

Instrument for measuring either direct or alternating electric current, in amperes. Ammeters vary in their operating principles and accuracies

Answer:

ammeter is used to measure electric current.

Hotel Fire Safety Directors are not authorized to order a full building evacuation of guests. Therefore, option (C) is correct.

Hotel Fire Safety Directors are individuals who are responsible for ensuring the safety of guests and employees in the event of a fire emergency in a hotel or other hospitality establishment.

They are typically appointed by the hotel management and must have knowledge of fire safety regulations and protocols, as well as the ability to lead and manage a team during an emergency.

Hotel Fire Safety Directors are responsible for implementing and maintaining the Fire Safety Plan, which includes conducting fire drills, training and supervising the Fire Brigade, and distributing applicable parts of the Fire Safety Plan to all employees. They must also work closely with the local fire department to ensure compliance with local fire safety regulations and protocols.

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With the use of extended euclidean algorithm below, we are able to find/proof that the mod 36 inverse of 7 is 31.

To find the mod 36 inverse of 7 using the extended Euclidean algorithm, we need to find integers x and y such that:

7x + 36y = 1

We can use the following steps:

This tells us that x = -5 and y = 1, since 36 and 7 are relatively prime. To ensure that the mod 36 inverse of 7 is positive, we add 36 to x to obtain x = 31.

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Answer:

a) Mt = 0.0023229

b) = U1 = 214.07

c) = V₁  = 0.861 m³/kg

d) = Vr1 = 621.2

Explanation:

Given that

R = 0.287 KJ/kg.K, T1 = 300 K , P1 = 100 kPa , V1 = 500 cm³, r = 10 , Q = 60 kW , Speed N = 5600 RPM, Number of cylinders K = 4

specific heat at constant volume Cv = 0.7174 kJ/kg.K

Specific heat at constant pressure is 1.0045 Kj/kg.K

a)  To determine the total mass (kg) of air in the engine.

we say

P1V1 = mRT1

we the figures substitute

(100 x 10³) ( 500 x  10⁻⁶) = m ( 0.287 x  10³) ( 300 )

50 = m x 86100

m = 0.00005 / 86100 = 0.0005807 ( mass of one cylinder)

Total mass of 4 cylinder

Mt = m x k

Mt = 0.0005807 x 4

Mt = 0.0023229

b) To determine the specific internal energy (kJ/kg) at state 1

i.e at T1 = 300

we obtain the value of specific internal energy U1 at 300 K ( state 1) from the table ideal gas properties of air.

U1 = 214.07

c) To determine the specific volume (m³/kg) at state 1.

we say

V₁ = V1/m

V₁ = (500 x  10⁻⁶) / 0.0005807

V₁  = 0.861 m³/kg

d) To determine the relative specific volume at state 1.

To obtain the value of relative specific volume at 300 K ( i.e state 1) from the table ideal gas properties of air.

At T1 = 300 k

Vr1 = 621.2