multiple choice question a screening decision blank . multiple choice question. is used to identify projects that need to be improved relates to whether a proposed project is acceptable is made after a capital budgeting project is accepted relates to whether a proposed project is the best option among more than one acceptable project
Answers
A screening decision .relates to whether a proposed project is the best option among more than one acceptable project.
What is screening decisionThe act of assessing and choosing people or objects based on particular standards or factors is commonly referred to as a screening decision. This phrase is frequently employed in a variety of circumstances, such as hiring processes, submitting employment requests, choosing suppliers, verifying identifications, or diagnosing health issues.
When it comes to recruiting or job applications, a screening verdict is the process of evaluating resumes, application forms, or other applicable paperwork to determine the best-suited candidates for a job.
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Related Questions
2) The switch in the circuit below has been closed a long time. At t=0, it is opened.
Find the inductor current for il(t) for t> 0.
Answers
Answer:
il(t) = e^(-100t)
Explanation:
The current from the source when the switch is closed is the current through an equivalent load of 15 + 50║50 = 15+25 = 40 ohms. That is, it is 80/40 = 2 amperes. That current is split evenly between the two parallel 50-ohm resistors, so the initial inductor current is 2/2 = 1 ampere.
The time constant is L/R = 0.20/20 = 0.01 seconds. Then the decaying current is described by ...
il(t) = e^(-t/.01)
il(t) = e^(-100t) . . . amperes
True or false: a process is self-contained and does not accept inputs or produce outputs.
Answers
Answer:
False.
Explanation:
A process will always need inputs and outputs to work. Keep in mind that inputs can be almost anything: time, money, information, materials, work, etc...
You are the engineer for farmer Anderson who is planning on a residential housing development in his former apple orchard in Massachusetts . Soil samples analyzed for arsenic show following results :
sample concentration in soil
sample 1 ..................... 52.7 mg/kg
sample 2 ..................... 11.3 mg /kg
sample 3 ....................... 4.9 mg /kg
what do you advice your client based on this information ...
Answers
The advice that will be given to the client based on the information is that the samples have arsenic levels within the limits.
What is a soil?Soil, also known as earth or dirt, is a complex mixture of organic matter, minerals, gases, liquids, and organisms that support life. Soil is the loose surface material that covers the majority of the land. It is made up of both inorganic and organic particles. Soil provides structural support to agricultural plants as well as a source of water and nutrients. The chemical and physical properties of soils vary greatly.
All of the samples collected have arsenic levels that are within the limits. The concentration of arsenic in samples 2 and 3 is well within the limit. The average value of 21 mg/kg has shown no adverse effects on residents and animals living in already-established residential areas.
Garden vegetable consumption has also not been linked to higher urinary arsenic levels. As a result, there will be no effects of such concentration for residential purposes.
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prior to being bottled and sold, most spirits are diluted with water to lower their alcohol content. The quality of water can have a huge impact on flavor of spirit
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Prior to being bottled and sold, most spirits undergo a process of dilution with water to lower their alcohol content. The quality of water used in this process can have a significant impact on the flavor of the spirit.
The flavor of spirits can be influenced by various factors such as the type of grains or fruits used in their production, the type of barrels used for aging, and the duration of aging. However, water quality is often overlooked, despite its crucial role in the production process.
The quality of water used in the dilution process can affect the taste, aroma, and mouthfeel of the final product. Poor quality water can contain impurities that alter the flavor of the spirit. For example, water with high levels of minerals such as calcium or magnesium can make the spirit taste harsh or bitter. Similarly, water with high levels of chlorine or other chemicals can affect the aroma and overall taste of the spirit.
On the other hand, using high-quality water can enhance the flavor of the spirit. Distillers may use water from natural sources, such as springs or wells, which have unique mineral compositions that can add depth and complexity to the spirit's flavor profile.
In conclusion, the quality of water used in the dilution process can have a significant impact on the flavor of the spirit. Distillers should carefully consider the source and quality of water they use to ensure the best possible final product.
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15. Concerning blood, which virus poses the greatest risk for workers?
A) O HIV
B) O Hepatitis C
C) O Hepatitis A
D) O Hepatitis B
Answers
Answer:
I think the answer is A. HIV
Consider steady flow of air through the device shown below (assume inviscid,
incompressible flow). The exit velocity is 100 ft/s and the differential pressure across the
nozzle upstream is 6 lb/ft?. Based on this information, determine (a) the height H of the water
in the manometer attached to the Pitot tube, and (b) the diameter d of the nozzle.
Answers
Answer:
im not for sure
Explanation:
A .02 kg of R-134a fills a 0.14-m3 weighted piston–cylinder device at a temperature of –26.4°C. The container is now heated until the temperature is 100°C. Determine the final volume of R-134a. Use data from the refrigerant tables.
Answers
Answer:
The answer is 0.06027 m³
Explanation:
Solution
Given that:
The first step to take is to determine the initial state of the volume for R-134a refrigerant
Now,
v₁ =V/m
V = the volume of weighted piston cylinder device at the normal state
m = the mass of the R-134a refrigerant
Thus,
We substitute the values 0.14 for V and 0.2 kg for m
Which results in
v₁ = 0.14/0.2
v₁ = 0.7 m₃/kg
The next step is to find the saturated pressure of the R-134a refrigerant from the temperature table of saturated refrigerant R-134a which is equivalent to the normal temperature of 26.4°C.
Thus, by applying the method of interpolation we have the following
P₁ =101.73 - ((101.73-92.76) * (-26-(-26.4)/-26- (-28))
P₁ = 99.936 kPa
So,
The refrigerant in the weighted piston–cylinder device is then heated until the temperature gets to a 100°C
Hence, the temperature and pressure at a state of two becomes
P₂ = 99.936 kPa
T₂ = 100°C
The next step is to determine the specific volume of the refrigerant R-134a at a final state from the super heated refrigerant R-134a which is equivalent to the pressure of 99.936 kPa
v₂ =0.30138 m³ /kg
Now,
we now calculate the final state of the weighted piston cylinder device
V₂ = mv₂
V₂ = 0.2 * 0.30138
V₂ = 0.06027 m³
Hence ,the final volume of the weighted cylinder piston device is 0.06027 m³
What are the nominal dimensions for a 1x2 stick of lumber, a 2x4 stick of lumber and a standard sheet of plywood?
Answers
1 1/2 x 3 1/2 inches (38 x 89 mm) is the actually size for a 2x4 stick of lumber,
Plywood is usually sold in 4 x 8-foot sheets. The most common nominal thicknesses of plywood are 1/2 inch and 3/4 inch, but once again the actual sizes are slightly different. A sheet of 1/2-inch plywood is really 15/32 inch thick, while a 3/4-inch sheet is 23/32 inch thick.
Hopefully this answers your question, I apologize if it doesn’t :)
The actual dimensions for the given nominal dimensions 1x2 stick of lumber, a 2x4 stick of lumber are;
Actual dimension of 1 x 2 stick of lumber = ³/₄'' × 3¹/₂''
Actual dimension of 2 x 4 stick of lumber = 1¹/₂'' × 3¹/₂''
The nominal dimension for a sheet of plywood is; 4' x 8'
Lumber sticks are sticks made from timber in forms used mainly in building construction as formwork support for the sheets of plywood used.
There could also be other uses of lumber sticks like making of some basic home furniture's but they are primarily used in building construction.
Now, Lumber sticks could come in different nominal dimensions such as;
1 x 4 lumber sticks.1 x 6 lumber sticks.1 x 8 lumber sticks.1 x 10 lumber sticks.1 x 12 lumber sticks.2 x 4 lumber sticks.2 x 6 lumber sticks.2 x 8 lumber sticks.2 x 10 lumber sticks.2 x 12 lumber sticks.Now, in the question, we are dealing with 1x2 stick of lumber and a 2x4 stick of lumber. From general cutting standards in most workshops, the actual sizes are respectively;
Actual size of 1 x 2 stick of lumber = ³/₄'' × 3¹/₂''
Actual size of 2 x 4 stick of lumber = 1¹/₂'' × 3¹/₂''
Now, for a sheet of plywood, the standard size of a sheet of plywood is 4' × 8'.
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A good place to get hints about how to answer a response question could be
a.
Your teacher
c.
Both of these
b.
The rest of the test
d.
None of these
Please select the best answer from the choices provided
A
B
C
D
Answers
Answer:
I think its A
Explanation:
...............................
6. What is the resistance of a curling iron that draws 12 A of current on a 120 V circuit?
Answers
Answer:
10 ohms Ω
Explanation:
V = IR
120 = I(12)
120/12 = 10Ω
Kevin fixes trucks as a job. The engine is oily. Which set set of equipment should Kevin use to fix the truck?
Answers
Answer:
A hammer and a wrench
Explanation:
A small probe P is gently forced against the circular surface with a vertical force F as shown . Determine the n- and t-components of this force as functions of the horizontal positions.
Answers
This question is incomplete, its missing an image which will be uploaded along this Answer.
Answer:
the normal component of force F_n is F((√(r²-s²)) / r)
the tangential component of force F_t is F(s/r)
Explanation:
Given the data in the image;
from the free body diagram, we write the expression for ∅
sin∅ = s/r
cos∅ = (√(r²-s²)) / r
now expression for normal component of force is;
F_n = Fcos∅
we substitute
F_n = F((√(r²-s²)) / r)
Therefore, the normal component of force F_n is F((√(r²-s²)) / r)
Also for force F_t
F_t = Fsin∅
we substitute
F_t = F(s/r)
Therefore, the tangential component of force F_t is F(s/r)
Quadrilateral ABCD is a rectangle.
If m ZADB = 7k + 60 and mZCDB = -5k + 40, find mZCBD.
Answers
Hope this helps...........
A 50-cm x 50-cm circuit board that contains 121 square chips on one side is to be cooled by combined natural convection and radiation by mounting it on a vertical surface in a room at 25 °C. Each chip dissipates 0.18 W of power, and the emissivity of the chip surfaces is 0.7. Assuming the heat transfer from the back side of the circuit board to be negligible, and the temperature of the surrounding surfaces to be the same as the air temperature of the room, determine the surface temperature of the chips. Evaluate air properties at a film temperature of 30 °C and 1 atm pressure. Is this a good assumption?
Answers
Answer:
Ts = 311.86 K = 38.86°C
Explanation:
The convection heat transfer coefficient for vertical orientation of the board is given by the formula:
\(h = 1.42(\frac{T_{s} - T_{f} }{L})^{0.25}\)
where,
h = heat transfer coefficient
\(T_{s}\) = surface temperature
\(T_{f}\) = Temperature of fluid (air) = 30°C + 273 = 303 K
L = Characteristic Length = 50 cm = 0.5 m
Since the heat transfer through convection is given as:
\(Q_{conv} = hA_{s}(T_{s} - T_{f})\)
using value of h, we get:
\(Q_{conv} = 1.42(\frac{T_{s} - T_{f} }{L})^{0.25} A_{s} (T_{s} - T_{f} )\)
\(Q_{conv} = 1.42 A_{s} \frac{(T_{s} - T_{f} )^{1.25} }{L^{0.25} }\)
where,
\(A_{s}\) = Surface Area = (0.5 m)(0.5 m) = 0.25 m²
Now, the radiation heat transfer is given by:
\(Q_{rad} =\) εσ\(A_{s} [(T_{s})^{4} - (T_{surr})^{4}]\)
where,
ε = emissivity of surface = 0.7
σ = Stefan Boltzman Constant = 5.67 x 10⁻⁸ W/m².k⁴
\(T_{surr}\) = Temperature of surroundings = 25°C +273 = 298 k
Now, the total heat transfer rate will be:
\(Q_{total} = Q_{conv} + Q_{rad}\)
using values:
\(Q_{total} =\) \(1.42 A_{s} \frac{(T_{s} - T_{f} )^{1.25} }{L^{0.25} } +\) εσ\(A_{s} [(T_{s})^{4} - (T_{surr})^{4}]\)
we know that the total heat transfer from the board can be found out by:
\(Q_{total} = (0.18 W) (121) = 21.78 W\)
using values in the equation:
21.78 = (1.42)(0.25)\((T_{s} - 303)^{1.25}/0.5^{0.25}\) + (0.7)(5.67 x 10⁻⁸)(0.25)\([(T_{s})^{4} - 298^{4}]\)
21.78 = (0.4222)\((T_{s} - 303)^{1.25}\) + 9.922 x 10⁻⁹\((T_{s} )^{4}\) - 78.25
100.03 = (0.4222)\((T_{s} - 303)^{1.25}\)+ 9.922 x 10⁻⁹\((T_{s} )^{4}\)
Solving this equation numerically by Newton - Raphson Method (Here, any numerical method or an equation solver can be used), we get the value of Ts to be:
Ts = 311.86 K = 38.86°C
The film temperature is the average of surface temperature and surrounding temperature. Therefore,
Film Temperature = (25°C + 38.86°C)/2 = 31.93°C
Since, this is very close to 30°C.
Hence, the assumption is good.
An insulated, vertical piston–cylinder device initially contains 10 kg of water, 6 kg of which is in the vapor phase. The mass of the piston is such that it maintains a constant pressure of 200 kPa inside the cylinder. Now steam at 0.5 MPa and 350°C is allowed to enter the cylinder from a supply line until all the liquid in the cylinder has vaporized. Determine (a) the final temperature in the cylinder and (b) the mass of the steam that has entered.
Answers
Answer:
See explaination
Explanation:
Please kindly check attachment for the step by step solution of the given problem.
A piston–cylinder device contains 0.8 kg of steam at 300°C and at pressure of 800 kPa. Steam is cooled at constant pressure until one-half of the mass condenses. The final temperature is
a.
178°C
b.
184°C
c.
195°C
d.
None of these
e.
167°C
f.
170°C
Answers
Answer:
d
Explanation:
d.
None of these
The entire population of a given community is examined, and all who are judged to be free from bowel cancer are questioned extensively about their diets. These people then are followed for several years to see whether their eating habits will predict their risk of developing bowel cancer. Which of the following study designs most appropriately characterizes this situation?
A. Cross-sectional study.
B. Case-control study.
C. Prospective cohort study.
D. Historical prospective cohort study.
E. Clinical trial.
F. Community trial.
Answers
Answer:
C) Prospective Cohort study
Explanation:
prospective cohort study can be regarded as longitudinal cohort study that comes up with periods of time when group of individuals that are different in terms of some factors that are undergoing some study, so that how theses factors influence rates of some particular outcomes can be known.
what term is used to describe the study of designing machines and work settings to minimize injury and illness?
Answers
The term used to describe the study of designing machines and work settings to minimize injury and illness is ergonomics.
Ergonomics is the science of designing machines and work settings to fit the needs of the worker, taking into account their physical, cognitive, and psychological capabilities.
This includes designing machines and work settings to reduce the risk of injury or illness, and to improve comfort, safety, and efficiency.
Ergonomics also focuses on designing workstations, tools, and processes to be as ergonomically friendly as possible. This includes providing adjustable chairs, adjustable keyboards and mice, and making sure that tasks don't require the worker to be in the same position for extended periods of time.
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Technician A says that when removing an oil filter, position the oil filter wrench at the inner end of the filter. Technician B says that when loosening an oil pan drain plug, turn it clockwise. Who is correct?
A. Tech A
B. Tech B
C both
D neither
Answers
D. Neither. Technician A is incorrect because the oil filter wrench should be positioned at the outer end of the filter, not the inner end. Technician B is also incorrect because the oil pan drain plug should be turned counterclockwise to loosen it, not clockwise.
1. Technician A says that when removing an oil filter, position the oil filter wrench at the inner end of the filter. This is because the oil filter wrench should grip the filter tightly to prevent it from slipping and damaging the filter or the wrench. By placing the wrench at the inner end, it can grip the filter securely.
2. Technician B says that when loosening an oil pan drain plug, turn it clockwise. This is incorrect. To loosen an oil pan drain plug, it should be turned counterclockwise. This is because most bolts and screws, including drain plugs, are designed to be loosened by turning counterclockwise. Turning a drain plug clockwise can cause it to become even tighter and more difficult to remove.
3. Therefore, the correct answer is A. Technician A is correct in advising to position the oil filter wrench at the inner end of the filter when removing it. However, Technician B is incorrect in advising to turn an oil pan drain plug clockwise when loosening it. It should be turned counterclockwise to loosen it.
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time complexity of merge sort
Answers
Answer:
The correct answer is "\(O (n\times Log n)\)". A further explanation is given below.
Explanation:
Throughout all the three instances (worst, average as well as best), the time complexity including its Merge sort seems to be \(O (n\times Log n)\) as the merge form often splits the array into two halves together tends to linear time to combine multiple halves. As an unsorted array, it needs an equivalent amount of unnecessary capacity. Therefore, large unsorted arrays are not appropriate for having to search.List five areas that increased energy prices impact.
Answers
Answer:
Supply, demand, global markets, imports and exports, and government Regulation.
Explanation:
An insulated vertical cylinder Contains 0.1 kg Argon gas with the help of a frictionless non- conducting piston as shown in the figure . The mass of the piston is 5kg and initially rest on the bottom of the cylinder. The cylinder connected to nitrogen tank at 100 bar to a pipeline fitted with the valve The valve is opened and nitrogen slowly enters the cylinder. During this process the piston is lifted and to height of 10cm by Nitrogen gas. The initial pressure and temperature of argon are 300K and 1 bar. The final temperature of argon gas is 320K for argon R = 0.208 kJ/kgK and r = 1.67 Find the net work done by the Nitrogen
Answers
The net work done by the Nitrogen in lifting the mass and the pressure is; W_n = 0.6257 kJ
What is the net work done?We are given;
Mass of argon; m_a = 0.1 kg
mass of piston; m_p = 5 kg
Pressure 1; p₁ = 100 kPa
Temperature 1; T₁ = 300 K
Temperature 2; T₂ = 320 K
Ideal gas constant; R = 0.208 kJ/kg.K
γ = 1.67
Since the reaction is adiabatic and slowly reversible, then we will use the formula; PV^(γ) = C
Thus, work done by argon is;
W_ar = [m_a * R(T₁ - T₂)]/(γ - 1)
W_ar = [0.1 * 0.208(300 - 320)]/(1.67 - 1)
W_ar = -0.6028 kJ
Work done by nitrogen will be;
W_n = |W_ar| + (m_p * g * m_a)/1000
W_n = 0.6028 + (5 * 9.81 * 0.1)/1000
W_n = 0.6257 kJ
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The IRT has a vital responsibility in gathering forensic evidence, which is defined as collecting and preserving the information that can be used to reconstruct events.
a. True
b. False
Answers
The following is a series of questions pertaining to the NSPE Code of Ethics. Please indicate whether the statement are true or false. These questions are provided by the NSPE.
Engineers in public service as members, advisors or employees of a governmental or quasi-governmental body or department may participate in decisions with respect to services solicited or provided by them or their organizations in private or public engineering practice as long as such decisions do not involve technical engineering matters for which they do not posses professional competence
Answers
Geomorphic
Explanation:
Because it's pretty easy if you think of the right ways of geomorphic ways to process the equation
An organization has developed an application that needs a patch to fix a critical vulnerability. In which of the following environments should the patch be deployed LAST?
a. Test
b. Staging
c. Development
d. Production
Answers
The patch should be deployed LAST in the production environment, after thorough testing in the test, staging, and development environments.
Your question is about the order of deploying a patch to fix a critical vulnerability in an application. The patch should be deployed last in the Production environment (d). This is because it is important to test the patch in the Development, Test, and Staging environments first to ensure its stability and effectiveness before applying it to the live Production environment. The patch should be deployed LAST in the production environment, after thorough testing in the test, staging, and development environments to ensure that it does not cause any unintended issues or downtime for users.
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An architect is using a scale of 1 in. = 10 ft.
What is this scale as a fraction?
Answers
The scale of 1 inch = 10 feet can be expressed as a fraction of 1/120.
The given scale of 1 inch = 10 feet can be written as a ratio of inches to feet, which is:
1 inch / 10 feet
To express this ratio as a fraction, we can convert the units so that both terms are in the same unit. Since there are 12 inches in 1 foot, we can convert the feet to inches by multiplying by 12, which gives:
1 inch / (10 x 12) inches
Simplifying this fraction by dividing both the numerator and denominator by 10, we get:
1/120
Therefore, the scale of 1 inch = 10 feet can be expressed as a fraction of 1/120.
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For Python, the term data type can be used interchangeably with what other term? O index O class O object O sequence Which category of data types represents an ordered collection of values? O numeric O sequence O boolean O dictionary All Python data types are immutable. O True O False Python is dynamically typed, meaning each variable can only store one type of value. O True O False The Python type conversion functions are actually what kind of functions? O object constructors O iterators O user-defined types O predicate functions Reorder the terms on the left to match the descriptions on the right. Once you start reordering, be sure to finish before checking your answers. list 7 set 8 int 9 bool A true or false value. A character string. An unordered collection of key/value pairs. A whole number. An immutable list of values. An unordered collection of unique values. A list of values. 10 tuple 11 dict 12 str
Answers
The term data type can be used interchangeably with what other term is Object.
Sequence of data types represents an ordered collection of values. set of data types represents an unordered collection of unique values. All Python data types are immutable. False Python is dynamically typed, meaning each variable can only store one type of value. False The Python type conversion functions are actually what kind of functions. Object constructors Reorder the terms on the left to match the descriptions on the right. bool: A true or false value. str: A character string. dict: An unordered collection of key/value pairs. int: A whole number. tuple: An immutable list of values. set: An unordered collection of unique values. list: A list of values.
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A switch that can open or close an electric circuit can be used to?
Answers
Answer:
When a switch is in the "off" position the circuit is open. Electric charges cannot flow when a switch is in the off position.
Explanation:
A switch that can open or close an electric circuit can be used to stop the flow of current.
What is a switch?A switch can be defined as an electrical component (device) that is typically designed and developed for interrupting the flow of current or electrons in an electric circuit.
This ultimately implies that, a switch that can open or close an electric circuit can be used to stop the flow of current.
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The importance of supervision
Answers
Answer:
Supervision, enables the Coach to: Keep a questioning and reflective eye on the work that they are doing. Work with another to help them extend their perspective supporting the development of their own 'Internal Coach' Access support and challenge that is needed to help the coach continue to grow and develop.
Explanation:
SUPERVISION – SIGNIFICANCE
Supervision is primarily concerned with overseeing or watching the performance of workers under his control. He plays an important role in the management set up. He is the person who is directly connected with the workers and acts as a vital link between the management and workers.
select all that apply blank frequent compounding leads to a blank ear, all else equal. multiple select question. more; lower more; higher less; higher less; lower
Answers
A tuba's BO is lower than a flute's BO. The flute may also emit sound waves with this higher frequency as we know that a rise in pitch corresponds to an increase in frequency.
The pitch of a sound would depend on the frequency of something like the sound wave. The greater pitch of high-frequency sound waves allows them to be recognized from low sound waves. Frequency and pitch were not the same, despite their tight relationship. A quality that can be studied scientifically is frequency. It is impossible to quantify pitch because it is a subjective experience that each person has when listening to a sound wave. The general definition of viscosity is the measure of a fluid's resistance to change shape at a particular rate. When referring to liquids, it is equivalent to the more widely used term of "thickness." For instance, syrup has a higher viscosity than water.
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