Answer:
shorted
Explanation:
A diode is a device that passes current much better in one direction than in the reverse direction.
Ohmmeter testConceptually, an ohmmeter applies a voltage to the device under test and reports the current through the device on a scale calibrated in ohms. It typically has a low enough open-circuit voltage, and a high enough internal resistance so as to avoid damage to parts under test.
A "continuity" tester may have an open-circuit voltage of a few tens of millivolts and/or a short-circuit current of a few microamps, so as to properly detect continuity and avoid contact damage in "dry" circuits. Such a tester is virtually useless for diode testing.
An ohmmeter suitable for diode testing will generally have an open-circuit voltage of a few volts, and a short-circuit current of a few milliamps. When such a meter is used to test a diode, it will indicate a few kilohms (or less) in the "forward" direction, and several 10s or 100s of megohms in the reverse direction.
Low-resistance readingsIf the "forward" resistance reading is unusually low (a few ohms), the diode may be damaged. If both forward and reverse readings are unusually low, the diode my be considered to be shorted.
Electronic returnless fuel systems use the question 3 options: a) throttle bodymounted regulator. b) mechanical bypass regulator. c) in-line fuel supply pump. d) pressure vent valve in tank.
Electronic returnless fuel systems use an in-line fuel supply pump.
What is the role of electronic Returnless fuel systems?Electronic returnless EFI systems is known to bean “On Demand” returnless EFI systems due to the fact that it make use of fuel tank pressure sensor to examine fuel pressure.
Therefore, one can say that an Electronic returnless fuel systems use an in-line fuel supply pump.
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sketch the graph of the function y=(sinx)/(x**2-1)?
The graph of the function y = (sin x)/(x * 2-1) is given in the attached image.
What is a graph?Recall that a graph is a visual representation of data or depiction of the mathematical relationships between various factors in a mathematical function.
A function in math is a rule, or theorem defining a connection between one variable (the independent variable) and another (the dependent variable).
It is to be noted that functions are common in mathematics and are required for the formulation of physical connections in the sciences.
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Define waves as it applies to electromagnetic fields
Waves in the electric and magnetic fields are known as electromagnetic waves. You must first understand what a field is, which is just a technique of giving each square inch of space a numerical value. You may see that as a temperature field, for instance, when you look at the weather predictions and they mention the temperature in several locations. Every location on Earth has a unique temperature that can be quantified. Everywhere on Earth has its own wind velocity, which is another form of field. This field differs somewhat from the temperature field in that the wind velocity has both a direction and a magnitude, whereas the temperature just has a magnitude (how hot it is). A vector is a quantity that has both magnitude and direction, hence a field that contains vectors at every location is referred to as a vector field. Vector fields include the magnetic and electric fields. We may examine what would happen if we placed a charged particle at any given position in space. If the charged particle were to accelerate, we would state that the electric field there is the direction in which the particle is moving. In general, positively charged particles will move in the electric field's direction, whereas negatively charged particles will move in the opposite way. Because it is a vector field, the magnetic field exhibits comparable behavior. We discovered in the 19th century that the same interaction, electromagnetism, really produces both electric and magnetic fields. Like an electromagnet, a changing electric field will produce a magnetic field, and a changing magnetic field will induce an electric field (like in a generator). If your system is configured properly, you may have an electric field that fluctuates, which in turn produces a magnetic field, which in turn induces another electric field, which in turn generates another magnetic field, and so on indefinitely. At the speed of light, this oscillation between a strong magnetic field and strong electric field spreads out indefinitely. In reality, light is an electromagnetic wave—an oscillation in the electromagnetic fields. An electric or magnetic field may exist without a medium since they exist in a vacuum, which implies that waves in these fields don't require a medium like sound to flow through.
Which pipe for water is best for construction?
Likely, CPVC. Most recommended.
How does a tempering valve work?
By mixing hot water with cold water, the tempering valve enables hot water to be kept at a temperature that kills bacteria while distributing it to the fixtures at a temperature that won't burn people. By adjusting the tempering valve's adjuster, the required temperature may be set for the valve. A thermostatic mixing valve can hold water at 1°C +/- and responds more quickly to changes in incoming water temperature than a tempering valve, which is accurate to around 3°C +/-.
two pints of ethyl ether evaporate over a period of 1,5 hours. what is the air flow necessary to remain at 10% or less of ethyl ether's lower explosive level? (LEL=1.9%, SG=.71)
The air flow necessary to remain at the lower explosive level is 4515. 04cfm
How to solve for the rate of air flowFirst we have to find the rate of emission. This is solved as
2pints/1.5 x 1min
= 2/1.5x60
We have the following details
SG = 0.71
LEL = 1.9%
B = 10% = 0.1 a constant
The molecular weight is given as 74.12
Then we would have Q as
403*100*0.2222 / 74.12 * 0.71 * 0.1
= Q = 4515. 04
Hence we can conclude that the air flow necessary to remain at the lower explosive level is 4515. 04cfm
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what is a home that has its own roof, foundation, and a wall that extends from the roof through the foundation
Fire wall is a home that has its own roof, foundation, and a wall that extends from the roof through the foundation.
What is a Fire wall?This is known to be a form of rated assembly that ranges from the foundation to and via the roof of a building to lower the rate of fire spread.
Note that, Fire wall is a home that has its own roof, foundation, and a wall that extends from the roof through the foundation.
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The controller determines if a(n) _________ exists by calculating the difference between the SP and the PV.
The controller determines if a(n) error exists by calculating the difference between the SP and the PV.
How does a controller work in control system?The Control system is one where it entails if the output is one that has an effect on the input quantity.
So it uses the PV(Process Variable) set against the SP(Setpoint) to know if an error exists.
So, The controller determines if a(n) error exists by calculating the difference between the SP and the PV.
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What is the first thing a technician should check when a new drive is not recognized by the operating system
The first thing a technician need to check if a new drive is not recognized by the operating system are:
Look at the Hard Drive Cable Connection.Do Initialize and then Format Hard Drive.Why does Hard Drive Not Showing Up in system?The issues on how to fix it are:
Check and then one can change Hard Drive ConnectionDo Format Hard Drive to NTFS. Recover Data and make a Partition.Hence, The first thing a technician need to check if a new drive is not recognized by the operating system are:
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Think show tell talk strategy this is a best practice for ensuring children have repeated exposure to a world in different context
Think show, tell, talk strategy this is a best practice for ensuring children have repeated exposure to a world in different context is a true statement.
What is the Think Show Tell Talk strategy?The Think, Show, Tell, Talk strategy is known to be the act or method that is said to be an easy-to-use method for making a lot of opportunities available for children within the classroom as it helps in vocabulary and language growth.
Therefore, with the statement above one can say that Think show, tell, talk strategy this is a best practice for ensuring children have repeated exposure to a world in different context is a true statement.
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1)What are the three previous manufacturing revolutions Mr. Scalabre mentions? When did these take place?
2)Why does Mr. Scalabre believe we are not growing in productivity? How do we turn these shortcomings into the next big manufacturing revolution?
3)How is robotics making an impact in productivity?
4)How has 3D printing made an impact in productivity?
5)What role do you feel engineers and experts in technology will play in this next revolution? What are some other ways they will contribute to increasing productivity?
The three previous manufacturing revolutions that Mr. Scalabre mentioned and their year of occurrence are:
The steam engine in the mid-19th CenturyThe mass-production model in the early 20th CenturyThe first automation wave in the 1970sWhat is a Manufacturing Revolution?This refers to the process of change from a handicraft economy to industry production-based production.
Hence, we can see that Mr. Scalabre believes we are not growing in productivity because there has not been enough automation to perform the tasks needed.
The effect of robotics is making an impact on productivity because a lot of complex, difficult tasks are done by machines.
3D printing has made an impact on productivity because there is a reduction in the pressing cycle and errors due to negligence are reduced.
The role the engineers have to play in the next revolution is that they would have to produce mathematical model that can be used to produce better AIs
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When a process is in a state of statistical control, all of the points on a control chart should fall within the control limits. However, it is undesirable that all of the points should fall extremely near, or exactly on, the centerline of the control chart. Why?
it is undesirable that all of the points should fall extremely near, or exactly on, the centerline of the control chart Because:
It can make it difficult to interpret patterns and draw conclusions in a run chart.It can lead hinder the process, and make it unstable.When a data point falls outside the control limits of a run chart ?If a data point falls is said to outside the control limits, we can say that the process is said to be out of one's control and it is good that an investigation is done to ascertain and remove the cause or causes.
So, it is undesirable that all of the points should fall extremely near, or exactly on, the centerline of the control chart Because:
It can make it difficult to interpret patterns and draw conclusions in a run chart.It can lead hinder the process, and make it unstable.Learn more about data point from
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As project manager, you approve a team member’s request to change the order of their tasks because they think it will be more efficient. However, this change disrupts another team member’s work process: they need to do two additional tasks not related to the project’s goal. What is happening on this project?
The project is going to scope if the situation happens. Option A is correct.
What is the function of a project manager?Project managers are in charge of organizing, planning, and guiding the execution of certain projects for an organization .
As the project manager, you grant a team member's request to rearrange their work in a way they believe will increase productivity.
However, this modification interferes with another team member's workflow since they now have to complete two more activities that are unrelated to the project's objective. The project will be within its scope.
Hence option A is correct.
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s) Use Cramer’s rule to solve the system below, and state the condition at which solution exists. ax+by = 1 cx+dy =−1
(a) The solution to the system of equation is, x = (d + b)/(ad - cb) and y = (-a - c)/(ad - cb).
(b) The condition at which the solution exists is, ad - cb ≠ 0.
Solving the system of equation with Cramer's rule
ax + by = 1
cx + dy = -1
D = [a b]
[c d]
D = ad - cb
Dx = [1 b]
[-1 d]
Dx = d + b
Dy = [a 1]
[c - 1]
Dy = -a - c
x = Dx/D
x = (d + b)/(ad - cb)
y = Dy/D
y = (-a - c)/(ad - cb)
Cramer's rule applies to the case where the coefficient determinant is nonzero.
Thus, D ≠ 0 (ad - cb ≠ 0).
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what about the geometric
This is about the geometrics When you hear “geometry,” mind of shapes, area, and quantity likely come to mind—and this is exactly what geometry is Geometry, similar to algebra, is constructed on a mathematical ruleset.
Why is it known as geometry?Geometry comes from Greek words, “ge” meaning “earth” and “metria” meaning “measuring.” The technique to Geometry evolved with the aid of using the Ancient Greeks has been used for over 2000 years as the idea of geometry. According to NCTM Standards:
The observation of geometry in grades 3-7 calls for questioning and doing put even greater simply, geometry is a kind of math that offers points, lines, shapes, and surfaces.Euclid changed into a high-quality mathematician and frequently known as the daddy of geometry.Read more about geometry:
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A kitchen contains one section of counter that's 20 inches
long, one section that's 10 inches long, one section that's
32 feet long, and an island that's 4 feet long. How many
receptacles are needed for all of these areas?
A. Two
B. Three
C. Four
D. Five
The number of receptacles that are needed for all of these kitchen areas are: C. Four.
What are receptacles?Receptacles can be defined as types of sockets or series of outlets (openings) that provides a path where current can be taken in a wiring system, so as to run electrical appliances in buildings.
Based on the information provided, the number of receptacles that are needed for all of these kitchen areas are four because one would be used in each area.
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In sequential order, the components of the intrinsic conduction system, beginning at the sa node, are ________.
The components of the intrinsic conduction system, beginning at the SA node, are:
AV node AV bundlebundle branchesPurkinje fibersWhat are the elements that belongs to the intrinsic conduction system?They are:
SA Node. AV Node.AV Bundle.Right/Left AV bundle branches.Purkinje fibers.Note that The components of the intrinsic conduction system, beginning at the SA node, are:
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function of a regulator
Answer:
the function of the regulator in a power supply:-
A voltage regulator is a component of the power supply unit that ensures a steady constant voltage supply through all operational conditions. It regulates voltage during power fluctuations and variations in loads. It can regulate AC as well as DC voltages.
Explanation:
(❁´◡`❁)
Answer:-
The power of regulators to grant significant benefits to, or impose restrictions or penalties on, members of the public – and the extra profits to be gained from avoiding regulations – increases the risks of corruption. Regulators also have a role in collecting and protecting government revenue.
Car A starts from rest at t = 0 and travels along a straight road with a constant acceleration of 6 ft/s2 until it reaches a speed of 80 ft/s. Afterwards it maintains this speed. Also, when t = 0, car B located 6000 ft down the road is traveling towards A at a constant speed of 60 ft/s. Determine the distance traveled by car A when they pass each other.
The distance traveled by car A when they pass each other is 1071m
Calculations and ParametersGiven:
t=0
constant acceleration= 6 ft/s^2
speed= 80 ft/s^2
[tex]S_A= \frac{at1^2}{2} + V_At\\S_B= V_B (t1 +t)[/tex]
= [tex]2 * (\frac{27}{2})^{2}/2 + 27 * 32.9[/tex]
= 1071m
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A fair cubical die is thrown four times. use the binomial probability formula to calculate the probability of at least two 3's.
By using the binomial probability formula, the probability of at least two 3's is equal to 0.1319.
How to calculate the probability of at least two 3's?Since the fair cubical die is thrown four times, the number of times is given by n = 4 and the probability of 3's is P = 1/6.
Mathematically, the binomial probability formula is given by:
[tex]P(X \geq x) =\sum^{n}_{r=x} ^nC_r (p)^r (q)^{(n-r)}\\\\P(X \geq 2) = \; ^4C_2 (\frac{1}{6} )^2 (\frac{5}{6} )^{(4-2)} + ^4C_3 (\frac{1}{6} )^3 (\frac{5}{6} )^{(4-3)} + ^4C_4 (\frac{1}{6} )^4 (\frac{5}{6} )^{(4-4)}\\\\P(X \geq 2) = 6 \times \frac{1}{36} \times \frac{25}{36} + 4 \times \frac{1}{216} \times \frac{5}{36} + 1 \times \frac{1}{1296} \times 1\\\\P(X \geq 2) = \frac{150}{1296} + \frac{20}{1296}+ \frac{1}{1296}[/tex]
P(X ≥ 2) = 19/144
P(X ≥ 2) = 0.1319.
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4. A banking system provides users with several services:
(a) to check their accounts to see recent transactions and balances;
(b) to pay bills online;
(c) to buy and sell investments.
All of these services require a secure log-in. If the system crashes or the network
connection fails during a transaction, all the financial data must be left in a consistent
state.
a. Draw use case diagrams for these requirements. Use standard symbols and shapes. MS
Office Visio, Lucidchart, draw.io, Creately, Smartdraw or Figma are optional tools
b. Give the use case specification for paying a bill online.
A diagram showing a use case diagrams for these requirements is given in the image attached.
What is system Case diagram?A use case diagram is known to be a kind of graphical illustration of a users in terms of their various possible association or interactions within any given system.
A use case diagram in banking can be used to prepare, depict and also to know all the functional requirements of the banking system.
Therefore, Give the use case specification for the banking system services and paying a bill online is given in the image attached.
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The influent BOD5 to a primary settling tank is 345 mg/L. The average flow rate is 0.050 m3/s. If the BOD5 removal efficiency is 30%, how many kilograms of BOD5 are removed in the primary settling tank each day?
The kilograms of BOD5 that are removed in the primary settling tank each day is 447.12 kg.
How to calculate the value?The BOD5 removed in the primary settling tank each day will be:
= efficiency * influent * average flow rate*24*60*60
The average flow rate is 0.050 m3/s and the BOD5 removal efficiency is 30%,
Influent = 0.345 g/L = 0.000345 kg/L
BOD5 removed in the primary settling tank each day will be:
= 0.3*50*0.000345*24*60*60
= 447.12 kg
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norton's theorem and thevenin's theorem related linearity property
Norton's theorem in regards to linearity property is known to be one that employ the use of a current source while the Thevenin's theorem is known to be one that employ the use of a voltage source.
Thevenin's theorem make use of a resistor in a kind of series, but Norton's theorem is known to use a resister set in a kind of parallel way in line with the source.
What is Norton's Theorem?
Norton's Theorem is known to be a law that states that one can be able to simplify any form of linear circuit, no matter how difficult or hard that it may be, to an equivalent circuit through the use of only one current source and also the use of a parallel resistance linked to a load.
Note that, Norton's theorem in regards to linearity property is known to be one that employ the use of a current source while the Thevenin's theorem is known to be one that employ the use of a voltage source.
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What factors do we need to know that affect unit operation and why do we need to know these factors?
Energy transfer is factor that affects unit operation this is because each processing of change requires energy transfer.
What is unit operation?Unit operations involves reactions that lead to physical change or chemical transformation.
It include separating of mixtures which can be done by filtering, crystallization and polymerization.
Unit operation often results into changes that can be seen or visible changes.
Energy transfer is one the factors that affect unit operation.
Therefore, Energy transfer is factor that affects unit operation this is because each processing of change requires energy transfer.
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Application: Assume a small
spacecraft is in open space.
One panel is a dedicated
radiator (dimensions in
image) and is painted with
S13 GLO white paint
(emissivity = .89). If the
radiator is at 30C and has a
full view factor to space, how
much heat can it reject from
the system? (How much is
this radiator radiating to
space?). Use 3K for space
temperature. Round answer
up to one decimal place. No
need to include units.
*.../2
1 m
Radiator
.3 m
The amount of radiation that the system is radiating into space is 1.164 x 10¹⁷. See the explanation below.
What is radiation?Rockets or space crafts emit heat as they navigate into space. This heat or emissions is what is referred to as radiation.
What is the calculation supporting the answer above?Recall that we are given the following:
Thus,
Converting the temperature of the Radiator, we have:
30°C = 273 + 30
= 303K
Area of the Panel of the radiator = 0.3 x 0.1
= 0.03
The formula for the heat emitted by the system is given as:
Q = ∈δA (T₁⁴ - T₁⁴)
Where:
δ = Stefan - Bolta Mann constant
→ δ = 5.67 X 10⁻ⁿ
→ The amount of heat is thus given as:
Q = 0.89 x 5.17 x 10⁸ [ (303)⁴ - (3)⁴] x 0.03
Therefore,
Q = 1.1635158780036 × 10¹⁷
Q ≈ 1.164 x 10¹⁷
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The modifications of superheat and reheat for a vapor power plant are specifically better for the operation which of the following components. Pick one and briefly explain.
a.Condenser
b.Boiler
c.Open feedwater heater
d.Turbine
e.Electric generator
The modifications of superheating and reheat for a vapor power plant are specifically better for the operation which of the following components b.Boiler.
What are the primary additives in the vapour strength cycle?There are 5 steam strength cycles: The Carnot cycle, the easy Rankine cycle, the Rankine superheat cycle, the Rankine reheat cycle and the regenerative cycle.
Central to expertise the operation of steam propulsion is the primary steam cycle, a method wherein we generate steam in a boiler, increase the steam via a turbine to extract work, condense the steam into water, and sooner or later feed the water again to the boiler.Reheat now no longer best correctly decreased the penalty of the latent warmness of vaporization in steam discharged from the low-stress quit of the turbine cycle, however, it additionally advanced the first-rate of the steam on the low-stress quit of the mills via way of means of decreasing condensation and the formation of water droplets inside the turbine.Read more about the Boiler:
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Engineers designed a motorcycle helmet from a long-lasting and safe material that protects the wearer from accidents and excessive heat. What is one technological design criterion that the engineers still need to meet
kay flock accidents going crazy
Answer: B
Explanation:
trust yo, it's "be affordable"
Sketch the asymptotes of the Bode plot magnitude and phase for the open-loop transfer ()=100(S+1)/((S+10)(S+100)) Use MATLAB to verify your solution.
The asymptotes of the open loop transfer are:
Horizontal: y = 0Vertical: x = -10 and x = -100How to plot the asymptotes?The open loop transfer function is given as:
f(s) = 100(s + 1)/((s + 10)(s + 100))
Set the numerator of the function to 0.
So, we have:
f(s) = 0/((s + 10)(s + 100))
Evaluate
f(s) = 0
This means that, the vertical asymptote is y = 0
Set the denominator of the function to 0.
(s + 10)(s + 100) 0
Split
s + 10 = 0 and s + 100 = 0
Solve for s
s = -10 and s = -100
This means that, the horizontal asymptotes are s = -10 and s = -100
See attachment for the graph of the asymptotes
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Consider a person with a skin layer of L = 3 mm thickness and with thermal conductivity of 0.3 W/m K. Assume that the inner part of the skin is at 35 C whereas the outer part of the skin is exposed to the environment. The surface are ais about 1.8 m2 and the emissivity of the skin can be taken as 0.95. When the person is in still air at 297 K, what is the skin surface temperature and the rate of heat loss to the environment?
The skin surface temperature is 307.2 K and the rate of heat loss is 146 W.
How to find skin surface temperature?The skin surface temperature may be obtained by performing an energy balance at the skin surface to give the formula;
k(T_i - T_s)/L = h(T_s - T_∞) + h_r(T⁴_s - T⁴_surr)
Now, T_surround = T_s and so making T_s the subject gives us;
T_s = [(k*T_i)/L + (h + h_r)T_∞]/((k/l)
Using the equation h_r = εσ(T_s + T_surr)(T²_s + T²_surr) we can find h_r with a guessed value of T_s = 305 K and T∞ = 297 K, to yield h_r = 5.9 W/m².K.
Then, substituting numerical values into the T_s equation, we have;
T_s = [(0.3 * 308)/(3 * 10⁻³) + (2 + 5.9)297]/[((0.3 * 308)/(3 * 10⁻³)) + (2 + 5.9)]
T_s = 307.2 K
Thus the skin temperature is 307.2 K.
The rate of heat loss can be found by evaluating the conduction through the skin/fat layer:
q_s = kA(T_i - T_s)/L
q_s = 0.3*1.8(308 - 307.2)/(3 * 10⁻³)
q_s = 146 W
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Why are diode logic gates not suitable for cascading operation?
Diode logic gates are not suitable for cascading operation because the pull-down or pull-up resistance within makes them a high output resistance device.
What is a cascading operation?A cascading operation can be defined as a process which involves the use of a circuit breaker's current-limiting capacity in order to enable an installation of lower-rated and lower-cost circuit breakers.
According to the National Electrical Code (NEC), diode logic gates are not suitable for cascading operation because the pull-down or pull-up resistance within makes them a high output resistance device.
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