Question I: 1. The fixed-value components of a Hay Bridge are R2 = 622, and C1 = 2uF. At balance R1 = 1692 and R3 = 1192. The supply frequency is 50 Hz. a) Calculate the value of the unknown impedance? b) Calculate the factor? c) What is the advantage of this bridge? 2. The value of the variable resistance of the approximate method for measuring capacitor is R = 8012 #1%. The voltage across the variable resistance and the capacitor are 20V + 4% and 30V + 3%. a. Find the capacitance value if the supply frequency is 60Hz + 3 %? b. Calculate and AC AC с

SCR because it can be controlled with reference to the point in the cycle at which it will turn on.

I'd say number 4, number 3 looks like an exhaust valve

There are two methods you can use to check the crankshaft for straightness visual inspection and measuring with a straightedge.

Visual inspection involves examining the crankshaft for any obvious signs of bending or warping. Look for visible cracks, bends, or uneven surfaces. If you notice any irregularities, it may indicate a problem with the straightness of the crankshaft.

The second method is measuring with a straightedge. Place a straightedge along the length of the crankshaft and check for any gaps between the straightedge and the crankshaft. If there are gaps, it suggests that the crankshaft is not straight.

Both methods are important in determining the straightness of the crankshaft. Visual inspection can give you a quick indication of any visible issues, while using a straightedge provides a more precise measurement. Remember to use the appropriate tools and follow proper safety precautions when conducting these checks.

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Answer:A 4-input NAND gate is normally high. It can only go low when all four of the inputs have a logical high on them. Assuming the circuit should see a condition where all four inputs go high, then a constant high output indicates a fault does exist.The first step in troubleshooting this failure is to verify the circuit, under normal operation should be seeing a condition where all four inputs do go high. It is completely possible that the circuit is working properly and the condition you were expecting simply does not occur. Verifying what your inputs should be allow you to confirm whether a failure exists in reality.Second, you should verify that the logic probe, multi-meter, oscilloscope, logic analyzer, or monitoring circuit you are using to test circuit outputs is working properly. This is easiest done by touching the probe of the monitoring device to another output you should see changing states. In one system I once had to trouble-shoot, the device had a built-in monitoring circuit and the failure was actually in the monitoring circuit rather than in the main circuit. Once you have confirmed that your test equipment is working properly, you can begin testing the actual circuit to troubleshoot the failure.Given that the circuit should be seeing periods where the gate should go low and that your test equipment is working properly, then a constant high output on this gate means either the output of the gate is open (assuming their is a tie-up resistor somewhere on the output line) or at least one of the inputs is being held low. A constant low input could be a failed gate driving one of the inputs, a short to ground on the circuit board trace connected to the constant low input, or a tie-up resistor on the input that has opened (Technically, this last cause creates a floating input which could intermittently be seen as either a high or low, but in my experience is invariably seen as a low.) The only way to determine which fault exists is to measure the voltages on each input pin to determine which input is failing and then trace the constant low back to its source.729 viewsView 1 upvote1Add a comment...Sponsored by Purdue University OnlinePurdue's 100% Online Master's Now Accepting Applications.Earn an online MS in Electrical and Computer Engineering degree in 12-24 months. View curriculum guide.Learn MoreLoring Chien, Electrical Engineer for 45 years & IEEE Sr. Life memberAnswered Jul 2, 2020

Explanation:

The human approach focuses on staff awareness, training, and personal responsibility to minimize the probability of mistakes and risk-taking.

The engineering approach utilizes protective equipment, engineered designs, and automatic equipment to minimize accidents and losses.

The two methodologies: human and engineering approaches to loss prevention both aim to minimize and manage risk. However, there are some distinct differences in their approaches to reducing loss. Below are the details of the human and engineering approaches to loss prevention:

The human approach, also known as the behavioral approach, acknowledges that human error plays a significant role in accidents and losses. It recognizes the unpredictability of human behavior, making it challenging to anticipate and manage compared to system-generated problems. Therefore, the human approach emphasizes the development of staff awareness, training, and personal responsibility as strategies to minimize the likelihood of mistakes and risk-taking.

On the other hand, the engineering approach emphasizes that accidents and losses can be reduced through the implementation of protective equipment, engineered designs, and automatic equipment. Engineering solutions involve designing systems, structures, and equipment that minimize the chances of accidents or injuries. By providing multiple layers of protection, engineering measures aim to minimize human errors, enhance security, and improve the overall operational environment.

In conclusion, both the human and engineering approaches offer different solutions to loss prevention. The choice of the most effective approach depends on the specific circumstances and issues faced by a company. However, integrating both methods is generally considered the best approach. By incorporating human factors such as staff training and communication into the engineering design, an effective safety culture can be established.

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Engineering is a profession that requires its practitioners to possess knowledge, skills, and judgment. Engineering is a challenging career that necessitates honesty, integrity, professionalism, and a strong sense of responsibility.

Engineers are required to recognize and abide by moral, ethical, and professional obligations while performing their duties. Engineers must exercise professional engineering judgment when performing engineering work and understand the consequences of their actions.

They must always be cognizant of their professional responsibility to safeguard the welfare of the public, the environment, and the infrastructure. The obligation for engineering competency is one of the primary ethical responsibilities that engineers must uphold.

The following statements are true regarding the ethical obligation for engineering competency:

1. Engineers are required to complete a rigorous curriculum of mathematics, science, and engineering in order to obtain an engineering degree. They must pass state licensing exams to become a licensed engineer.

2. Engineers must maintain their professional competency by participating in continuing education programs, workshops, seminars, and other professional development activities.

3. Engineers must be competent in their chosen field of engineering and must be able to demonstrate this competency to their clients and employers. They must only accept work assignments that they are qualified to perform.

4. Engineers must adhere to a strict code of professional conduct that prohibits them from engaging in unethical or illegal activities, such as falsifying engineering reports, accepting bribes, or engaging in conflicts of interest.

5. Engineers must always act in the best interests of the public, even if it means putting their own interests aside. They must ensure that their work does not pose a threat to public safety, health, or welfare.

6. Engineers must always be aware of the potential risks and hazards associated with their work. They must take reasonable steps to mitigate these risks and hazards, and must be prepared to respond in the event of an emergency.

7. Engineers must only perform work that is ethical and legal. They must not engage in any activities that would bring discredit to the profession. They must be transparent and honest in their dealings with clients, employers, and the public.

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Answer:

Connect the test light in series with the negative post, and start pulling feed wires. The first to check is the heavy charging wire from the alternator. A bad or leaky diode in an alternator is a very common source of overnight battery drain. Connect wires one at a time to see what lead is drawing current.

Answer:

minimum volume = 367.5 lit

minimum weight = 228.75 kg

We can iterate through all possible combinations of integers within the given range and check if they satisfy the Pythagorean theorem condition.

To solve the Pythagorean triple problem using an exhaustive search algorithm, we can iterate through all possible combinations of integers (x, y, z) within the given range a ≤ x ≤ y ≤ z ≤ b.

For each combination, we check if it satisfies the Pythagorean theorem condition x² + y²  = z² . If a valid triple is found, we return that triple; otherwise, we return None if no such triple exists.

function pythagoreanTriple(a, b):

   for x from a to b:

       for y from x to b:

           for z from y to b:

               if x²  + y²  == z² :

                   return (x, y, z)

   return None

```

The time efficiency class of this algorithm is O((b-a)³) since it involves three nested loops that iterate from a to b. As the range (b-a) increases, the number of iterations and the time complexity of the algorithm grows cubically.

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False.

The voltage through a resistor with current i(t) in the s-domain is simply Ri(s), where R is the resistance value of the resistor. In the s-domain, the relationship between voltage and current through a resistor can be expressed using Ohm's law as V(s) = I(s)R.

Therefore, the voltage across a resistor in the s-domain is proportional to the current through it, with the proportionality constant being the resistance value. It's important to note that this relationship only holds true for resistive elements in linear circuits. Non-linear circuit elements such as diodes and transistors have much more complex voltage-current relationships that cannot be described using a simple linear equation.

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Note that no drug will precipitate from the solution upon cooling it to 40°C.

Amount of drug in saturated solution at 80°C = 1000 g

Solubility of drug at 80°C = 2.5 g B 100-1 g-1 water

Therefore, the amount of water present in the solution at 80°C = 1000 g / (2.5 g B 100-1 g-1 water) = 40000 g

Amount of drug in saturated solution at 40°C = 1000 g

Solubility of drug at 40°C = 0.36 g B 100-1 g-1 water

Therefore, the amount of water present in the solution at 40°C = 1000 g / (0.36 g B 100-1 g-1 water) = 2777.78 g

The amount of drug that will precipitate = amount of drug in initial solution - amount of drug in solution at 40°C

= 1000 g - (0.36 g B 100-1 g-1 water * 2777.78 g) = 1000 g - 1000 g = 0 g

Therefore, no drug will precipitate from the solution upon cooling it to 40°C.

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Answer: C) Collective action problem

Explanation:

The should be no concerns about the space immediately below the tanks because there will be no damage to anything if any peril causes the tank to falls.

Potential hazards refers to the active source for potential damage on a building, structure etc

It is important we know that the storage tanks are placed on a platform next to the building at the second-floor level but nothing beneath the tanks stands.

Hence, there should be no concerns about the space immediately below the tanks because there will be no damage to anything if any peril causes the tank to falls.

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Answer:

he u do in j eh g or something else for my T to go do for I do u do so he. hey it trjdu

An alpha-numeric designator which is systematically assigned at the time of manufacture, so as to identify the manufacturer, month, year, location, and batch is referred to as lot number.

A product can be defined as any physical object (tangible item) that is typically produced by a manufacturer so as to satisfy and meet the demands, needs or wants of every customer. Also, some examples of a product include the following:

A lot number can be defined as an alpha-numeric designator which is systematically designed and assigned at the time of manufacture, so as to identify the manufacturer, month, year, location, and batch.

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Hazard: Stored energy in the locked and tagged out equipment (steam in the pipe).

Risk: Failure to release stored energy leading to a sudden steam burst and resulting burns.

The worst thing that could have happened is Ngaire sustaining more severe burns, potentially affecting her face or causing life-threatening injuries.

Safety Rules that should have been followed:

a. Always ensure stored energy is safely released before working on equipment.

b. Only perform tasks for which one is properly trained and authorized.

c. Do not rush or take shortcuts when it comes to safety procedures.

Tools that could have prevented this incident:

a. Lockout/tagout devices: These tools ensure that energy sources are isolated and equipment cannot be operated.

b. Verification checklist: A documented process to confirm that stored energy has been released before commencing work.

What could have been done differently:

Ngaire should not have attempted to work on the equipment without proper training and authorization. She should have waited for the senior operator or sought assistance from another trained individual.

The most important thing that should have been done:

Ngaire should have prioritized her safety and followed established procedures, including verifying that stored energy was safely released. Taking shortcuts or disregarding safety protocols can lead to serious incidents and injuries.

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Python program to accept string inputs from the user and display them in ascending order (alphabetical order) until the user enters zzz or has entered 15 strings.``

`pythondef main():

# Define an empty list for storing the strings lst = []

# Loop until the user enters zzz or 15 strings have been entered while len(lst) < 15: s = input("Enter a string (or 'zzz' to quit): ") if s == "zzz": break lst.append(s)

# Sort the list in ascending order lst.sort()

# Display the sorted list for string in lst: print(string)if __name__ == "__main__": main()```

This program defines an empty list called lst, and then uses a loop to accept string inputs from the user until they enter "zzz" or have entered 15 strings. The input() function is used to accept user input for each string.Once the user has entered a string, the program adds it to the list lst. The program then sorts the list in ascending order using the sort() function. Finally, the program loops through the list and displays each string in ascending order using the print() function.

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Answer:

Explanation:

The most common HFC used in air conditioners is R-410A. This refrigerant is better than R-22 in terms of “Ozone Depletion” potential and energy efficiency, but it still causes global warming. A few more HFCs that are commonly used are: R-32 in Air Conditioners and R-134A in refrigerators.

Answer:

The most common refrigerants used for air conditioning over the years include

Explanation:

The most common refrigerants used for air conditioning over the years include.

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

An 802.11 frame contains a number of fields. frame control field describes the version of 802.11 that is being used.

Information is conveyed as a byte torrent across a moment in time interconnect called a frame among two or more devices. Upon reaching a significant frame, a package is split into a shorter person.

There are several specializations inside the framing modulation process that are used to characterize the frames and execution. These comprise the 802.11 version that is used by the person and is being processed in the input.  

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Answer:

yes it is certainly good ice cream

Answer:

Conditions for equilibrium require that the sum of all external forces acting on the body is zero (first condition of equilibrium), and the sum of all external torques from external forces is zero (second condition of equilibrium). These two conditions must be simultaneously satisfied in equilibrium.

Hi there!

For a particle to be in static equilibrium:

\(\huge\boxed{\Sigma \tau = 0}}\)

The sum of torques acting on the particle must equal 0 Nm.

\(\huge\boxed{\Sigma F = 0}}\)

The sum of forces acting on the particle must equal 0 N.

Both of these conditions MUST be met in order for a particle to be in STATIC equilibrium.

Answer:

  1.39 µmol

Explanation:

(1 gal) × (44.7 µg/L)/(121.76 g/mol)(3.785411784 L/gal) = 1.39 µmol

Answer:

The velocity at section is approximately 42.2 m/s

Explanation:

For the water flowing through the pipe, we have;

The pressure at section (1), P₁ = 300 kPa

The pressure at section (2), P₂ = 100 kPa

The diameter at section (1), D₁ = 0.1 m

The height of section (1) above section (2), D₂ = 50 m

The velocity at section (1), v₁ = 20 m/s

Let 'v₂' represent the velocity at section (2)

According to Bernoulli's equation, we have;

\(z_1 + \dfrac{P_1}{\rho \cdot g} + \dfrac{v^2_1}{2 \cdot g} = z_2 + \dfrac{P_2}{\rho \cdot g} + \dfrac{v^2_2}{2 \cdot g}\)

Where;

ρ = The density of water = 997 kg/m³

g = The acceleration due to gravity = 9.8 m/s²

z₁ = 50 m

z₂ = The reference = 0 m

By plugging in the values, we have;

\(50 \, m + \dfrac{300 \ kPa}{997 \, kg/m^3 \times 9.8 \, m/s^2} + \dfrac{(20 \, m/s)^2}{2 \times 9.8 \, m/s^2} = \dfrac{100 \ kPa}{997 \, kg/m^3 \times 9.8 \, m/s^2} + \dfrac{v_2^2}{2 \times 9.8 \, m/s^2}\)50 m + 30.704358 m + 20.4081633 m = 10.234786 m + \(\dfrac{v_2^2}{2 \times 9.8 \, m/s^2}\)

50 m + 30.704358 m + 20.4081633 m - 10.234786 m = \(\dfrac{v_2^2}{2 \times 9.8 \, m/s^2}\)

90.8777353 m = \(\dfrac{v_2^2}{2 \times 9.8 \, m/s^2}\)

v₂² = 2 × 9.8 m/s² × 90.8777353 m

v₂² = 1,781.20361 m²/s²

v₂ = √(1,781.20361 m²/s²) ≈ 42.204308 m/s

The velocity at section (2), v₂ ≈ 42.2 m/s

What is ratio?

A ratio indicates the number of times one number contains another. For example, if a dish of fruit contains eight oranges as well as six lemons, the orange-to-lemon ratio is eight to six. Similarly, the proportion of lemons to oranges is 6:8 (or 3:4), while the proportion of oranges to overall fruit is 8:14. (or 4:7). The numbers in a ratio can be any quantity, such as a count of people or things, or measurements of lengths, weights, time, and so on. Both numbers must be positive in most cases.

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Answer:

Resistance = 3 Ω

Explanation:

As we know that, By Ohm's Law

V = IR

where

V is the voltage in volt

I is the current in amps

R is the resistance in ohm

Now,

Given that,

V = 15 volts

I = 5 amps

So,

R = V/I

  = 15/5

 = 3 Ω

⇒R = 3 Ω

Heat energy is the known to be a product of the movement of tiny particles called atoms, molecules or ions. The true statement is by Technician A.

Internal combustion engine is dependent on the heat of combustion so as to make torque to move the vehicle and power the system.

A lot of heat made during combustion is not often used productively and therefore need to be removed to avoid overheating of the engine.

The heat energy that is not used for is wasted in three ways: They are:

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