For many cutting-edge systems based on fast neutrons, heavy liquid metals (HLMs), such as lead-bismuth eutectic (LBE) and pure lead, are popular candidate coolants.
LBE is employed, in instance, in Mol (Belgiumgroundbreaking )'s MYRRHA fast reactor, which can run in either critical mode or as a sub-critical accelerator-driven system. Key thermal-hydraulic features of these systems, such as the proper cooling of fuel components, must be evaluated with a heavy emphasis on safety.
This flow scenario presents a challenge for computational fluid dynamics (CFD) models, such as those used to relate the turbulent transport of momentum and heat, due to the complicated geometry and low Prandtl number of the LBE (Pr 0.025). Therefore, accurate experimental information is required for validation.
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The complete questions is ''what is the thermal-hydraulic study of the lbe-cooled fuel assembly in the myrrha reactor: experiments and simulations''.
The diameter of a spherical mothball is observed to halve in 200 d. Approx, how long will it take for its remaining value to become half of its volume of 200 d
A. 67 d.
B. 169 d.
C. 250 d.
D. 260 d.
Answer:
it is B trust me I know thank yiu
emitter, base, and collector are the terminals of a?
If you want to revise a sketch or a feature when using a 3D CAD program, how do you make a correction without using the undo function
Answer:
See explanation
Explanation:
Truthfully, this answer can vary depending on the CAD program you are choosing to use. Generally, you go to your model tree (this has been on the left hand side of the screen in all of the CAD software I have used) and click the sketch or feature to edit. In some programs this is a left click and in others this is a right click. When the feature is correctly selected a menu should appear with the option to edit feature/sketch/definition/etc. Select this option and you should be able to edit what you wanted to.
How do I test the functionality of a semiconductor diode using a DMM
Answer:
• Dismount the diode from the circuit board (PCB or veroboard)
• Switch on the DMM and connect its positive (red) probe to anode terminal of a diode as well as a negative (black) probe to the cathode terminal.
• The DMM must be in parameters of continuity.
• If a beep sound is heard, the diode is functioning.
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I need this word meaning and definition need asap?
Answer:
1. Alleviate: to make pain/suffering less severe.
2. Strenuous: requiring much energy and effort.
3. Revolutionize: to overthrow the established government; to change fundamentally.
4. Repetitive: doing or saying the same thing multiple times.
5. Prosthetics: a device designed to replace a missing body part, or make a part work better.
6. Infrastructure: the fundamental facilities and systems serving a country, city, or another area, including the services and facilities necessary for its economy to function.
What type of pattern should be used when tightening lug nuts?
Answer:
Cross pattern, according to the internet
Which of the two following four options have been shown by research to be generally not as effective a method for studying which two methods are more likely to produce illusions of complete in learning
The answer choices that have been shown by research to be generally not as effective a method for studying and the methods that are more likely to produce illusions of competence in learning are:
rereadinghigmappingWhat is Studying?This refers to the act or process of reading material in order to gain new knowledge about a topic and to retain the information in long-term memory.
Hence, we can see that from the complete text, there are different options given and the results of research that showed that they are not very effective for studying and they are:
rereadinghigmapping
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technician a says that gasoline engines have spark plugs to ignite the air-fuel mixture.technician b says that diesel engines use compression to ignite the air-fuel mixture. who iscorrect?
It is right to state that Technician B is correct. A piston compresses the air in the cylinder, causing it to become very hot. The diesel is then atomized in the injectors and sprayed into the heated air as a mist. The heated air ignites the gasoline quickly, creating ignition.
What is compression in Engines?As the fuel injectors drive air and fuel into the combustion chamber, compression occurs in the internal combustion cylinders.
The mixture ignites, and the piston is driven by the expansion of the burning gases in the cylinders, converting the energy from combustion into mechanical energy that propels the vehicle.
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A box barge 65 m long and 12 m wide floats at a draught of 5.5 m in sea water. calculate: a) the displacement of the barge, b) its draught in fresh water.
The Displacement of the Barge whose length 65m and 12m wide- 4375.8 tonnes(a) and the Draught in Fresh Water- 5.61 m(b).
Let density of sea-water be- 1020kg/m3
Displacement of the barge= Density of sea water* Volume Displaced
=1020* (12*65*5.5)
=4375800 kg
=4375.8 tonnes
Let Density of Fresh Water- 1000kg/m3
Draught in Fresh Water= Density of sea water/Density of water *draught in sea water
1020/1000 *5.5
Draught in Fresh Water= 5.61 m
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In written specifications, under the heading Painting and Finishing, which of the following would not be appropriate?
A. Surfaces to be included (interior and exterior).
B. Specific cations of materials to be used.
C. Application method and number of coats.
D. Number of painters to be used on the job.
E. Guarantee of quality and performance.
F. Completion date.
Answer:
F. Completion date.
Explanation:
The completion date cannot be determined exactly before the job; it is also irrelevant to Painting and Finishing.
1. The helical portion of a screw or bolt, or the
helix in a hole that it fastens into, is called a(n)
if both the ram air input and drain hole of the pitot system become blocked, the indicated airspeed will
If both the ram air input and drain hole of the pitot system become blocked, the indicated airspeed will: a) increase during a climb.
What is a ram air input?A ram air input can be defined as an air intake system which is designed and developed to use the dynamic air pressure that is created due to vehicular motion, or ram pressure, in order to increase the static air pressure within the intake manifold of an internal combustion engine of an automobile.
This ultimately implies that, a ram air input allows a greater mass-flow of air through the engine of an automobile, thereby, increasing the engine's power.
In conclusion, indicated airspeed will increase during a climb when both the ram air input and drain hole of the pitot system become blocked.
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Complete Question:
If both the ram air input and drain hole of the pitot system become blocked, the indicated airspeed will
a) increase during a climb
b) decrease during a climb
c) remain constant regardless of altitude change
grade 5 bolts have __ identifying on the head
Grade 5 bolts have 3 marks identifying on the head
This is further explained below.
What are Grade 5 bolts?Generally, When looking for the correct bolt, it is essential to check that the grades of the bolts that are currently being used are compatible with one another.
There is no difference between Grade 5 Bolts and Metric.
8 Bolts. The presence of three marks on the head of a Grade 5 bolt is often all that is required for successfully identifying the bolt.
In conclusion, The head of a grade 5 bolt will have three distinguishing markings on it.
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Given an unsorted array of n elements, find if the element k is present in the array
or not.
Complete the findNumber function in the editor below. It has 2 parameters:
1. An array of integers, arr, denoting the elements in the array.
2. An integer, k, denoting the element to be searched in the array.
The function must return a string "YES" or "NO" denoting if the element is present
in the array or not.
The program for the array of integers is illustrated below.
How to depict the program?Program :
n=int(input())
l=[]
for i in range(n):
l.append(int(input("Enter a number into an integer array : ")))
s=int(input("Enter the number to be searched: "))
def search(l,s):
l=sorted(l)
if s in l:
return "Yes"
else:
return "No"
print(search(l,s))
Inputs and outputs :
For test case 1 : (Number found)
Input : 5
Enter a number into an integer array : 61
Enter a number into an integer array : 72
Enter a number into an integer array : 89
Enter a number into an integer array : 42
Enter a number into an integer array : 54
Enter the number to be searched: 42
Ouput : Yes
For test case 2 : (Number not found)
Input : 3
Enter a number into an integer array : 99
Enter a number into an integer array : 84
Enter a number into an integer array : 3
Enter the number to be searched: 46
Ouput : No
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(5 points) Which of the following circuits may not be used to determine the value of the resistor? Circle all that apply.
The circuit that may not be used to determine the value of the resistor is (Option A). See the attached image.
What is a resistor?
A resistor is a component of an electronic circuit that restricts or regulates the passage of electrical current.
Resistors can also be used to supply a fixed voltage to an active device such as a transistor.
What is the purpose of a resistor?A resistor is a two-terminal electrical component that offers resistance to current flow. Resistors are commonly employed in electrical circuits to reduce current flow, split voltages, impede transmission signals, and bias active parts.
What is a circuit?
Individual electronic components such as resistors, transistors, capacitors, inductors, and diodes are linked by electrical wires or traces through which electric current can pass to form an electronic circuit.
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of the three types of hazard controls – engineering, administrative, and personal protective equipment (ppe) – ppe is the last line of defense.
Of the three types of hazard controls – engineering, administrative, and personal protective equipment (PPE) – PPE is the last line of defense: True.
What is OSHA?OSHA is simply an abbreviation for occupational safety and health administration that was created under the Occupational Safety and Health Act, so as to develop work-safety standards for workers and providing precautionary measures against all workplace hazards.
The three types of hazard controls.Generally, there are three types of hazard controls and these include the following:
Engineering Controls. Administrative Controls. Personal Protective Equipment (PPE).What is PPE?PPE is an acronym for personal protective equipment and it can be defined as a terminology that is used to denote any piece of equipment which offer protection to different parts of the body while working in a potentially hazardous environment.
Also, some examples of personal protective equipment (PPE) used to protect the different parts of the body are:
RespiratorsFace maskFace shieldGlovesBootsHelmetAccording to occupational safety and health administration (OSHA), the use of a faulty personal protective equipment (PPE) should be the last line of defense.
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Complete Question:
Of the three types of hazard controls – engineering, administrative, and personal protective equipment (PPE) – PPE is the last line of defense. True or False?
Who Can Help my assignment?
Answer:
me
Explanation:
As a mechanic, how will you assess the situation when the pilot insists that he wants to fly the aircraft despite giving him the advice that the aircraft is unworthy of flying?
The unit weight of soil is 17.3 KN/m3. The moisture content of this soil is 17% when the degree of saturation is 60%.
Answer:
degree of saturation at optimummoisture content is 78.1 %.
Explanation:
The maximum dry unit weight of the soilYa is 16.8kN/mThe optimum moisture content of the soilwis 17 %.The specific gravity of soil G is 2.73.Calculation:Determine the degree of saturation (S)using the relation.Yd = Gs Yw/ 1+Gsw/sHere, Yw is the unit weight of water.Substitute 16.8 kN/m' for a, 2.73 for G,9.81 kN/m' for u, and 17 % for w.16.8= 2.73x9.811/2.73x1 .4641 26.78S-1.594S =-0.4641-0.594S= -0.4641S= 0.4641S = 0.781x 100S = 78.1 %16.80.594Therefore, the degree of saturation atoptimum moisture content is 78.1 %.
Which of the following describes braking from a brake chamber containing a power spring?
A spring released and air-applied parking brake
A spring applied and air-released parking brake
A spring released and air-applied service brake
A spring applied and air-released service brake
The one that describes braking from a brake chamber containing a power spring is a spring applied and air-released service brake. The correct option is D.
What is spring brake?Spring brakes, unlike service brakes, are not air applied. They apply when air pressure is released from the brake chamber and release when air pressure is restored. Spring brakes and service brakes use different types of brake chambers.
The braking power of spring brakes is determined by how well the brakes are adjusted. If the brakes are not properly adjusted, neither the regular nor the emergency/parking brakes will function properly.
A spring applied and air-released service brake is the one that describes braking from a brake chamber containing a power spring.
Thus, the correct option is D.
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(5 points) Knowing that the ammeter must be connected in series with the circuit and the voltmeter must be connected in parallel, what does this tells you about the internal resistance of each device?
This tells us that the internal resistance of the ammeter is very low because we would not want to impede the flow of current when trying to measure current. The internal resistance of the voltmeter must be high because it is added in parallel with the circuit and if added in series, it would cause resistance and alter the voltage reading.
what are the properties of advanced materials?
Sandpaper.
Rubble.
Pyramid.
Wrinkled.
Marbled.
a must be correctly applied so that it is strong enough to hold the assembly and still not interfere with the finished welding.
A tack weld must be correctly applied so that it is strong enough to hold the assembly and still not interfere with the finished welding.
Who is wielding?A wielder can be defined as an individual who is saddled with responsibility of joining two or more metals together by wielding, especially through the use of an electrode or gas wielding method.
During the process of wielding, sparks and minute metallic objects are produced, which are usually hazardous to both the wielder and other workers within the vicinity.
In Mechanical Engineering, a tack weld should be correctly applied to the metals that are being wielded, so that they are strong enough to hold the assembly without interfering with the finished welding.
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Complete Question:
A ____ must be correctly applied so that it is strong enough to hold the assembly and still not interfere with the finished welding.
a-forged weld
b-stick weld
c-tack weld
d-rod weld
Calculate the root for the following function: -26+82.3x-88x^2+45.4x^3-9x^4+0.65x^5 with a maximum number of iterations of 10 and a tolerance of 0.001 wearing a) Bisection b) Newton Raphson c) secant d) false position e) fixed point
excel
Answer:
the value of the best I love it was thinking too tough be a good night love motorcycle
Describe the standard algorithm for finding the binary representation of a positive decimal integer
in English.
in pseudocode
Answer:
the perimeter of a square room is 48m. what is the area of the room? What cost will incur if the rate of carpeting the room is Rs. 10 per m square
iron(Fe) has a bcc crystal structure, an atomic radius of 0.124nm, and an atomic weight of 55.85g/mol. what is the theoretical density
Iron has a BCC crystal structure, an atomic radius of 0.124 nm and atomic weight of 55.85g/mol, so the theoretical density will be 7.8 g/cm³.
What is Atomic Radius?In a molecule, an atomic radius is equal to half the distance between neighboring atoms of the same element.
When we travel down a group, the atomic radius increases, and when we move in a period from left to right, it decreases. The valence electrons being in the same outermost shell at various times explains this. Moving from left to right, the atomic number rises during the same time interval, increasing the effective nuclear charge. Elemental atomic radius decreases as attractive forces rise.
The given values in the question are :
Radius=0.124 nm and,
Atomic weight=55.85 g/mol
For BCC, Z=2
r=0.124 nm=0.124×[tex]10^{-9}[/tex] m
=0.124×[tex]10^{-9}[/tex]×10² cm
ρ= (Z×M)/a³ N₀
a=4r/√3
=(2×55.85 g.[tex]mol^{-1}[/tex])/(4×0.124×[tex]10^{-7}[/tex]/√3)×6.022×[tex]10^{23}[/tex]
ρ=7.8 g/cm³.
Hence, we get the density as 7.8g/cm³.
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BOOLEAN datatype is used for an attribute that takes a single character value.
It is false that Boolean datatype is used for an attribute that takes a single character value.
What is Boolean datatype?In computer science, the Boolean is basically a data type that has one of two possible values (usually said as true and false) which is intended to represent the two truth values of logic and Boolean algebra.
Person can utilize the Boolean Data Type to encompass two-state values including one as true/false, yes/no, or on/off.
The default value of Boolean is usually False . Boolean values are not grabbed as numbers, and the stored values are not necessarily to be equivalent to numbers.
Thus, the given statement is false.
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what are origin of elements
Explanation:
The origin of elements are÷ carbon,hydrogen and oxygen. i think soooo......✌
Hello,
Can someone solve this short exercise please. Only the calculation parts (a and c)
a) From the the given data:
The 2020 GDP / capita for Ni is 1.94
The 2020 GDP / capita for United States is 63.23
The equivalent CO2 emissions per equivalent US$ of GDP for Ni/geria
is 1.265
The equivalent CO2 emissions per equivalent US$ of GDP for United States is 0.218
c) From the typical trend predictions, the equivalent CO2 emission per equivalent US$ for the year 2035 is 513.59 T g C / yr
How to find the GDP per capitaGDP per capita is solved by gross domestic product GDP divided by population
GDP per capita for Ni/geria
= 400 / 206
= 1.94
GDP per capita for United States
= 20930 / 331
= 63.23
How to find equivalent CO2 emissions per equivalent US$ of GDPEquivalent CO2 emissions per equivalent US$ of GDP is gotten by
= CO2 emissions / GDP
Ni/geria
= 506 / 400
= 1.265
United States
= 4570 / 20930
= 0.218
How to compute equivalent CO2 emission per equivalent US$ for the year 2035 for Ni/geriaGiven that CO2 increment per year is 0.1% / yr. From 2020 to 2035 is 15 years and this shows increment of 15 * 0.1 = 1.5%
At 2020 it was 506 Tg C / yr with 1.5% increment we have
= 506 * 1.5%
= 7.59
The increment is 506 + 7.59 = 513.59 Tg C / yr
Therefore the equivalent CO2 emission per equivalent US$ for the year 2035 is 513.59 Tg C / yr
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Always use needle nose pliers for prying and twisting.
Answer:
no
Explanation:
llll