Answer: ………………..
Explanation:???????????????
If welding is being done in the vertical position, the torch should have a travel angle of?
Answer:
Between 35°– 45°
Explanation:
In the vertical position, Point the flame in the direction of travel. Keep the flame tip at the correct height above the base metal. An angle of 35°–45° should be maintained between the torch tip and the base metal. This angle may be varied up or down to heat or cool the weld pool if it is too narrow or too wide
What is the name of this piece?
Answer: block o’ metal
Explanation:
A station supplies 250 kVA at a lagging power factor of 0.8. A synchronous motor is connected in parallel with the load. If combined load is 250 kW with lagging p.f. of 0.9, determine:
Answer:al part of question
Explanation:voltage
What is voltage drop?
Answer:
Explanation:
It is the voltage a voltmeter would read when connected across something that has resistance.
___________0_________O______O_______
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| | |
|_____________________| |_____________ |
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The diagram above is supposed to represent 3 lightbulbs connected in series. The vertical lines in the middle are supposed to be a battery which powers the three light bulbs. If you put a voltmeter across one of the lightbulbs, it will read a voltage that is 1/3 of the voltage of the battery.
Answer
That reading you get across the one light bulb is The Voltage Drop.
d) The lack of development of nations around the globe is ascribed t o
dishonest or fraudul ent conduct by those in power. With the knowledge you have acquired in this course, you are required t o discuss, situating your
response in the country of your origin, at least five effects of dishonest or
fraudulent conduct by those in power.
One of the solutions that can help to reduce fraudulent conduct by those in power is to hold them accountable.
What is Development?This refers to the process through which an area or region experiences growth and improvement in terms of infrastructure and general well-being.
Hence, we can see that some of the effects of dishonest or fraudulent conduct by those in power are:
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Business support systems ____.
Answer:
These are the components telecommunication service providers use to run certain operations towards customers.
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Business support systems "provide job-related information support to users at all levels of a company". The correct option is 'a'.
Business support systems (BSS) encompass a combination of functionalities mentioned in the provided options. Let's discuss each option briefly:
a. Provide job-related information support to users at all levels of a company:
This statement aligns with the concept of Decision Support Systems (DSS), which are a type of BSS that aid users in making informed decisions by providing relevant information and analysis. DSS supports various levels of management by assisting them in evaluating alternatives, analyzing data, and generating reports to support decision-making processes.
b. Simulate human reasoning by combining a knowledge base and inference rules that determine how the knowledge is applied:
This description pertains to Expert Systems, which are an advanced form of BSS. Expert Systems utilize a knowledge base and inference rules to imitate human expertise and provide intelligent solutions to complex problems. They are particularly useful in domains where specialized knowledge is required.
c. Process data generated by day-to-day business operations:
This statement refers to Transaction Processing Systems (TPS), which are an essential component of BSS. TPS handles routine, day-to-day transactions and processes data generated during regular business operations, such as sales, inventory, and payroll.
d. Include e-mail, voice mail, fax, video conferencing, word processing, automated calendars, database management, spreadsheets, and integrated mobile computing systems:
These technologies are examples of Office Automation Systems (OAS), another category of BSS. OAS streamline office tasks and improve communication and collaboration among employees through various software tools and applications.
Therefore, business support systems encompass a range of applications and technologies that provide job-related information support.
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The complete question:
Business support systems ____.
a. provide job-related information support to users at all levels of a company
b. simulate human reasoning by combining a knowledge base and inference rules that determine how the knowledge is applied
c. process data generated by day-to-day business operations
d. include e-mail, voice mail, fax, video conferencing, word processing, automated calendars, database management, spreadsheets, and integrated mobile computing systems
Do you think that individuals with the same disabilities have the same needs? If your answer is yes, how? /No, why?
Disability is extremely diverse. While some health conditions associated with disability result in poor health and extensive health care needs, others do not. However, all people with disability have the same general health care needs as everyone else, and therefore need access to mainstream health care services.
A hollow aluminum shaft with an outside diameter of 63 mm and a wall thickness of 5 mm has an allowable shear stress of 72 mpa. Determine the maximum torque t that may be applied to the shaft.
Answer:
maximum torque of metal
Explanation:
Both copper and stainless steel are being considered as a wall material for a liquid cooled rocket nozzle. The cooled exterior of the wall is maintained at 150°C, while the combustion gases within the nozzle are at 2750°C. The gas side heat transfer coefficient is known to be hᵢ = 2×10⁴ W/m²-K, and the radius of the nozzle is much larger than the wall thickness. Thermal limitations dictate that the temperature of copper must not exceed 540°C, while that of the steel must not exceed 980°C. What is the maximum wall thickness that could be employed for each of the two materials? For Cu, ρ = 8933 kg/m³, k = 378 W/m-K and for stainless steel, ρ = 7900 kg/m³, k = 23.2 W/m-K
a. The maximum thickness of the copper nozzle is 3.3 mm
b. The maximum thickness of the steel nozzle is 0.054 mm
The question has to do with heat transfer
What is heat transfer?Heat transfer is the movement of heat energy from one body to anotrher.
How to calculate the maximum wall thickness?Since the rate of heat loss by the gas equal rate of heat gain by the metal.
Rate of heat loss by gasThe rate of heat loss by gas is P = -hA(T - T') where
h = heat transfer coefficient of gas = 2 × 10⁴ W/m²-K, A = surface area of nozzle, T = maximum temperature of metal and T = Temperature of gas = 2750°CRate of heat gain by metalThe rate of heat gain by metal is given by P' = kA(T - T")/t where
k = thermal coefficient of metal, A = surface area of nozzle, T = maximum temperature of metal, T" = temperature of exterior wall of nozzle = 150°C and t = thickness of nozzle. Maximum thickness of nozzle.Since P = P', we have that
-hA(T - T') = kA(T - T")/t
Making t subject of the formula, we have
t = -k(T - T")/h(T - T')
a. Maximum thickness for copper nozzleGiven that for copper
T = 540°C and k = 378 W/m-KSubstituting the values of the variables into t, we have
t = -k(T - T")/h(T - T')
t = -378 W/m-K(540°C - 150°C)/[2 × 10⁴ W/m²-K(540°C - 2750°C)]
t = -378 W/m-K(390°C)/[2 × 10⁴ W/m²-K(-2210°C)]
t = 147420 W/m/4420 × 10⁴ W/m²
t = 147420 W/m/44200000 W/m²
t = 0.0033 m
t = 3.3 mm
So, the maximum thickness of the copper nozzle is 10.71 cm
b. Maximum thickness for steel nozzleGiven that for steel
T = 980°C and k = 23.2 W/m-KSubstituting the values of the variables into t, we have
t = -k(T - T")/h(T - T')
t = -23.2 W/m-K(980°C - 150°C)/[2 × 10⁴ W/m²-K(980°C - 2750°C)]
t = -23.2 W/m-K(830°C)/[2 × 10⁴ W/m²-K(-1770°C)]
t = 19256 W/m/3540 × 10⁴ W/m²
t = 19256 W/m/35400000 W/m²
t = 0.0000544 m
t = 0.0544 mm
t ≅ 0.054 mm
So, the maximum thickness of the steel nozzle is 0.054 mm
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When an inside corner is being welded in the horizontal position, undercutting can be decreased or prevented by?
Answer:
By using a forward-inclined half-moon torch position, stopping momentarily at each end of the weld pool
Explanation:
By using a forward-inclined half-moon torch position, stopping momentarily at each end of the weld pool
Adjusting welding parameters, using appropriate electrode size, and maintaining proper torch angle can prevent undercutting in horizontal
welding of an inside corner.
We have,
When an inside corner is being welded in the horizontal position, undercutting can be decreased or prevented by adjusting the welding parameters, such as:
- Controlling Welding Parameters:
Adjusting the welding parameters is crucial in preventing undercutting.
It involves regulating the welding current, voltage, and travel speed.
- Selecting Appropriate Electrode Size:
Choosing the right electrode size is essential to control the heat generated during the welding process.
Smaller electrode diameters generally provide lower heat input, which can help prevent undercutting.
- Maintaining Proper Torch Angle and Manipulation Techniques:
Keeping the correct torch angle during welding is crucial to control the weld pool and metal deposition.
- reducing the welding current and travel speed
- using the appropriate electrode size
- maintaining proper torch angle and manipulation techniques.
Thus,
Adjusting welding parameters, using appropriate electrode size, and maintaining proper torch angle can prevent undercutting in horizontal welding of an inside corner.
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Dampness or moisture introduces ____ into the weld, which causes cracking when some metals are welded.
Answer: Dampness or moisture introduces hydrogen into the weld, which causes cracking when some metals are welded.
Explanation:
This moisture (hydrogen) is a major cause of weld cracking and porosity.
When required to drill holes on a roof that has no power supply the best drill for the job would be__________.
When required to drill holes on a roof that has no power supply the best drill for the job would be a cordless drill.
What is power supply?It should be noted that a power supply is an electrical device which supplies electric power to an electrical load.
In this case, the main purpose of a power supply is simply to be able to convert electric current from the source to the correct current, and frequency.
In this case, the power supply unit converts the main AC to a low-voltage regulated DC power. Therefore, When required to drill holes on a roof that has no power supply the best drill for the job would be a cordless drill.
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A complicated emissions control system would be the only way to lower a rotary engines poor emissions.
It is false that a complicated emissions control system would be the only way to lower a rotary engines poor emissions.
What is emission control system?Emission control system is developed to reduce emissions and discharge.
They are found in vehicles and other automobile to limit the discharge or release of gases thay are noxious which emit from combustion engine.
To control exhaust emissions, the air-injection system can be used and also, the exhaust gas recirculation (EGR) system can be used to reduce emissions. A high emissions requires high energy control system.
Therefore, It is false that a complicated emissions control system would be the only way to lower a rotary engines poor emissions
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what do you understand by the statement"the relative velocity of a body A with respect to body B".
The relative velocity is defined as the velocity of an object with respect to another observer. It is the time rate of change of relative position of one object with respect to another object.
What is the relative velocity of A with respect to B?The relative velocity of A with respect to B= velocity of the body A – velocity of the body B.
What is relative velocity and its formula?The relative velocity formula is expressed as. V → = V A B → + V B C → Where. VAB is the velocity with respect to A and B, VBC is the velocity with respect to B and C and VAC is the velocity with respect to A and C.
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Question 2: (a) In your own words, clearly distinguish and differentiate between Ethics in Engineering and Ethics in Computing ( 9 Marks) (b) Draw a table of comparison to illustrate your answer in (a) and provide in each case five practical examples in the fields outlined above.
Engineering ethics is not without abstraction, but in contrast with computing, it is animated by a robust and active movement concerned with the seamless identification of ethics with practice.
What is engineering?This is a branch of science and technology concerned with the design, building, and use of engines, machines, and structures that uses scientific principles.
Comparing ethics in engineering and ethics in computing:
Engineering ethics are a set of rules and guidelines. While computing ethics deals with procedures, values and practices.In engineering ethics, engineers must adhere to these rules as a moral obligation to their profession While in computing ethics, the ethics govern the process of consuming computer technology.Following these ethics for the two professions will NOT cause damage, but disobeying them causes damage.Some practical examples in the computing field:
Avoid using the computer to harm other people such as creating a bomb or destroying other people's work.Users also should not use a computer for stealing activities like breaking into a bank or company.Make sure a copy of the software had been paid for by the users before it is used.Some practical examples in the engineering field:
Integrity for oneself.Respect for one another.Pursuit of excellence and accountability.Hence, Engineering ethics is the field of system of moral principles that apply to the practice of engineering and following them is important to the profession.
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Effutu community members, in a recent community conference aimed at
deliberating on dishonest behavior of some communi ty leaders ended up
justifying unet hical behavior with the assertion that everybody acts
unethically. As a professional ethics st udent, analyze five reasons why
members in Effutu community act unethically
As a professional ethics student, analyze five reasons why members of Effutu community act unethically.
They are:
They believe that everyone acts unethicallyThey believe that there is little to no reward in acting honestlyThey do not believe that ethics has any long-term benefitThey do not want to be the odd-one-outThey are scared of change starting from themWhat is Ethics?This refers to the moral principles that guide a person's behavior and show their conduct to others and also to themselves.
Hence, we can see that based on the assertion made by the Effutu community members, they ended up justifying unethical behavior and the analysis has been made above.
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When making a conduit-to-box connection and a bonding wire will be installed, use?
When making a conduit-to-box connection and a bonding wire will be installed, by using a. grounding locknut.
How can one connect conduit to a box?
Metallic couplings can be used for metallic conduit and they can be secured with set screws or via compression.
It should be noted that the threaded couplings screw onto couplings that have threaded ends will make it easier.
Nonmetallic couplings can be used for nonmetallic conduit which are usually attached with solvent cement, hence When making a conduit-to-box connection and a bonding wire will be installed, by using a. grounding locknut.
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You have three gear wheels a, b and c connected to each other,if you turn the first gear wheel "a" clockwise what will happen to b and c
In the case above, It will take more time for a tooth of wheel B and C to make a full turn (slower) than it will for a tooth of wheel A.
What are gear wheels?A gear wheel is known to be a kind of a wheel that is known to be made up of a teeth and/or cogs that is known to function with those of other aspect of the wheel or part.
Note that in the above case, lets use a scenario that Wheel P has 5 teeth. Wheel M has 3 teeth and wheel N has 1 teeth. If wheel P makes a full turn, wheel M turn will be slower as well as wheel N which will take more time.
Therefore, In the case above, It will take more time for a tooth of wheel B and C to make a full turn than it will for a tooth of wheel A.
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You are coming to this intersection, and are planning on turningright. There is a vehicle close behind you. You should?
Answer:
Put on your right turn signal
The household refrigerator fresh-food compartment is a good example of ____ refrigeration
Question 5 of 10
Multiple Choice
How much cubic inch space is required inside a box for 4 #6 XHHN current carrying conductors?
OA. 12 cubic inches
OB. 10 cubic inches
OC. 20 cubic inches
OD. 8 cubic inches
The cubic inch space that is required inside a box for 4 #6 XHHN current carrying conductors will be D. 8 cubic inches.
What is a conductor?It should be noted that a conductor simply means a substance or material that simply allows electricity to pass through it.
From the information given, the cubic inch space that is required inside a box for 4 #6 XHHN current carrying conductors is yo be computed.
This will be:
= (4 × 6)/3
= 24/3
= 8
In conclusion, the cubic inch space that is required inside a box for 4 #6 XHHN current carrying conductors will be 8 cubic inches.
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The weave bead width should be ____ the diameter of the electrode being used. The same as no wider than 2–3 times 4 times no wider than 6 times
Answer:
the answer to this is 6 times.
During shielded metal arc welding, a welder can receive a burn comparable to sunburn if proper protective clothing is not worn.
a. true
b. false
Answer:
A. True
Explanation:
The statement is true
he critical buckling load of an ideal column of circular cross section can be reduced by: The critical buckling load of an ideal column of circular cross section can be reduced by: increasing the Poisson's ratio of the column material increasing the length of the column increasing the modulus of elasticity of the column material increasing the diameter of the column
The critical buckling load of an ideal column of circular cross section can be reduced by increasing the diameter of the column.
What is critical load of buckling of column?The critical load is known to be that factor that is labeled the greatest load that is one which is unable to cause lateral deflection (buckling).
Note that For loads greater than the critical load, the column will tend to decrease laterally. The critical load is known to be one that puts the column in what we call the state of an unstable form of equilibrium.
The critical buckling load is based on the shape and dimensions of beam section that is said to have constant cross sectional area.
Hence, The critical buckling load of an ideal column of circular cross section can be reduced by increasing the diameter of the column.
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Esma and hasan are putting the finishing touches on their model for a tiny chip-based energy source to power their lighting system. what phase of the engineering design process should they complete next? confirm with research build a prototype test their work get the product priced
The phase of the engineering design process which should be completed next is to test their work and is denoted as option C.
What is Engineering design?These are the series of steps and techniques which are done by individuals in the making of functional product and services.This employs the use of scientific methods and also ensures an easier living for different individuals.
The first stage involves identifying the problem and then building a prototype through the use of different materials. This is then tested before the final finishing work is done to ensure the parts are properly placed before they are moved for evaluation by other people.
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Two techniques that allow the io to play a useful advisory role even without direct experience in human subject protection areas are:_____.
The two techniques that allow the io to play a useful advisory role even without direct experience in human subject protection areas are periodically reviewing institutional policy and reviewing federal regulatory agency determination letters.
What is advisory?It should be noted that the role of an advisory board is to provide current knowledge, critical thinking as well as to increase the confidence of the decision-makers that represent the company.
Also, human subjects protections implies the collective term for the federal, state, and university ethical considerations which protect the rights and welfare of human beings.
Therefore, the two techniques that allow the io to play a useful advisory role even without direct experience in human subject protection areas are periodically reviewing institutional policy and reviewing federal regulatory agency determination letters.
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1. A 100kVA, 5000/200V transformer is tested. The data is provided below. (100 pts) Open Circuit VOC=200V, IOC=5A, POC=120W Short Circuit VSC=80V, ISC=10A, PSC=400W (a) What is the high-voltage side equivalent circuit? (30 pts)
Answer:open circuit
short circuit
voc
Explanation:
The torque developed by the motor in N-m and lb-ft
Explanation:
HP to torque (Nm) Calculation:
Torque T(Nm) in Newton meter (Nm) is equal to the 746 times of power P(HP) in horsepower divided by the 0.105 times of the motor speed N(rpm) in RPM. In another short word, 7127 times of horsepower divided by the motor speed is equal to motor torque.
A series RL circuit is connected to a 240 V single-phase power line with a frequency of 60 Hz. An ammeter indicates a current flow of 10 A and a wattmeter indicates a true power of 1630 W. Calculate
a) The existing power factor of the circuit.
b) The amount of capacitance required to correct the power factor to 95%.
c) Draw the power triangle for the corrected power factor.
pf=cos(thira)
pf=kw/kvar
The power factor of the motor and the amount of capacitance is 195 μF. The amount of capacitance required to correct the power factor to 95%. Thus, option B is correct.
What is capacitor?A capacitor has been defined as a device that stores the electric strength in an electric powered discipline by using the virtue of accumulating the electric costs on near surfaces insulated from each other. It's miles a passive digital thing with terminals.
The effect of the capacitor is referred to as capacitance. The capacitor is a part that has the capacity or “ability” to save strength inside the form of an electrical price producing a potential difference (Static Voltage) across its plates, similar to a small rechargeable battery.
Calculation:-
P = 18700
Q₂ = 29049.34
S = 29680
Q₂ = v²ωc
29049.34 = (560)² × ( 2π × 60 )
C = 1.95 × 10⁻⁴
C = 195 μF
Therefore, The power factor of the motor and the amount of capacitance is 195 μF. The amount of capacitance required to correct the power factor to 95%. Thus, option B is correct.
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A pilot reports that when the hydraulic pump is running, the pressure is normal. However, when the pump is stopped, no hydraulic pressure is available. This is a indication of a
A pilot reports that when the hydraulic pump is running, the pressure is normal. However, when the pump is stopped, no hydraulic pressure is available. This is an indication of a leaking accumulator air valve
This is further explained below.
What is an accumulator air valve?Generally, An accumulator of the bladder type is a metal tank that houses a rubber bladder that is filled with compressed gas. This form of the accumulator is also sometimes referred to as a hydro-pneumatic accumulator. In addition, the discharge port has a poppet valve, and the gas valve that is used to precharge the bladder has its own separate valve.
In conclusion, When the hydraulic pump is operating normally, according to the report of a pilot, the pressure is normal. On the other hand, there is no hydraulic pressure available when the pump is turned off. The presence of this symptom is evidence of a leaky accumulator air valve.
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