Answer:
The relief valve will open as pressure caused by a downstream load or backpressure increases high enough to force the poppet or spool open against its spring.
Explanation:
list five pieces of personal safety equipment which must be in everyday use in the workshop
Answer:
safety glasses, hearing protection, respirator, work gloves, and work boots.
Explanation:
please give brainliest!! <3
Imagine yourself as an Engineer. How would you design your own Wind Turbine to generate electricity (at least 40 watts) at your home or in some town area. Consider all the elements of the Engineering Design Process.
*Please write detailed answer*
Answer: You need metal and other stuff
Explanation:
One ac signal of 12sin(wt) is applied to a half wave rectifier. The average or dc value of output voltage is
a)12
b)7.64V
c)6
d)3.82V
Answer:
It is either B or D
Explanation:
A plant engineer wishes to know which of two types of lightbulbs should be used to light a warehouse. The bulbs that are currently used cost $41.1 per bulb and last 14600 hours before burning out. The new bulb (at $52.3 per bulb) provides the same amount of light and consumes the same amount of energy, but it lasts twice as long. The labor cost to change a bulb is $19. The lights are on 19 hours a day, 365 days a year. (Assume that the firm's marginal tax rate is 25%.) If the firm's MARR is 16%, what is the maximum price (per bulb) the engineer should be willing to pay to switch to the new bulb? Round the service life of the old bulb to the nearest whole number.
We have that the new bulb 's Price is P is mathematically given as
P= $100.68
Bulb PriceGenerally the Arithmetic equation for the life time of new bulb is mathematically given as
life time = old bulb life / (usage per 24 x 365)
Therefore
L= 14,600 / (19 x 365)
L= 2.10 years
Where
old bulb=(2 x 45.9) (1 + 15/100)2.10 x 2 + 16
Old bulb=$181.11
After tax
tax = 181.11(1 - 40%)
tax= $108.66
Therefore
the new bulb 's Price is P
108.66 = P x (1.7986) x (0.6)
P= $100.68
For more information on Bulb visit
https://brainly.com/question/6252535
For some metal alloy, the following engineering stresses produce the corresponding engineering plastic strains prior to necking. On the basis of this information, what engineering stress (in MPa) is necessary to produce an engineering plastic strain of 0.250
Engineering stress (MPa) Engineering strain
203 0.160
224 0.289
Answer:
203.0160
Explanation:
Because you add then subtract then multiply buy 7 the subtract then divide then you add that to the other numbers you got than boom
15. Whether technology is good or bad depends on how it is used.
(1 point)
O True
O False
Answer:
true
Explanation:
Answer:
True
Explanation:
The internet is a very useful tool, but remember there are billions of people out there who would use it for good purpose or bad ones.
describe the pipe support
Answer:
A pipe support or pipe hanger is a designed element that transfer the load from a pipe to the supporting structures. ... The four main functions of a pipe support are to anchor, guide, absorb shock, and support a specified load. Pipe supports used in high or low temperature applications may contain insulation materials.
Once digested and the nutrients absorbed, the remaining food materials are expelled from the body by a process known as ______________.
static electricity is the result of
Answer:
Explanation:
Static electricity is the result of an imbalance between negative and positive charges in an object. These charges can build up on the surface of an object until they find a way to be released or discharged.
For some metal alloy, a true stress of 345 MPa (50040 psi) produces a plastic true strain of 0.02. How much will a specimen of this material elongate when a true stress of 416 MPa (60340 psi) is applied if the original length is 510 mm (20.08 in.)
Answer:
Assume a value of 0.22 for the strain-hardening exponent, n.
Explanation:
A 75-hp motor that has an efficiency of 91.0% is worn-out and is replaced by a motor that has a high efficiency 75-hp motor that has an efficiency of 95.4%. Determine the reduction in heat gain in the room due to higher efficiency under full-load conditions (load factor
Answer:
the reduction in the heat gain is 2.8358 kW
Given that;
Shaft outpower of a motor = 75 hp = ( 75 × 746 ) = 55950 W
Efficiency of motor = 91.0% = 0.91
High Efficiency of the motor = 95.4% = 0.954
now, we know that, efficiency of motor is defined as; = /
where is the electric input given to the motor
so
= /
we substitute
= 55950 W / 0.91
= 61483.5 W
= 61.4835 kW
now, the electric input given to the motor due to increased efficiency will be;
= /
we substitute
= 55950 W / 0.954
= 58647.79 W
= 58.6477 kW
so the reduction of the heat gain of the room due to higher efficiency will be;
Q = -
we substitute
Q = 61.4835 kW - 58.6477 kW
Q = 2.8358 kW
Therefore, the reduction in the heat gain is 2.8358 kW
Explanation: i hope this answer your question if this is wrong or correct please let me know.also no trying to be rude but can you sent me like a thanks?
A new lathe insert is used on a 100 mm diameter steel workpart, with the lathe going at 300 rpm the insert lasts about 321 min, but at a 100 rpm it lasts for 2010 min. What material could you assume the lathe insert is made out of?
Answer:
two unknowns (C and n) can use two equations
1) vT^n=C
2)vT^n=C
n= 0.6
C=9510
Ceramic
Explanation:
Mark brainliest.
In the field of construction, welding is
considered what kind of position?
A. specialty
B. common
C. widespread
Answer:
C
Explanation:
I think
g If the rails are originally laid in contact, what is the stress in them on a summer day when their temperature is 31.0
A) The amount of space must be left between adjacent rails if they are just to touch on a summer day when their temperature is 31.0 °C is; 0.6048 cm
B) The stress in the rails on a summer day when their temperature is 31.0 °C is; 86.4 × 10⁶ Pa
Linear Thermal Expansion
We are given;
Length; L = 14 m
Initial Temperature; T_i = −5 °C
Final Temperature; T_f = 31 °C
The formula for Linear Thermal Expansion is;
ΔL = L_i * α * ΔT
where;
L_i is initial length
α is thermal expansion
ΔL is change in length
ΔT is change in temperature
Now, the thermal expansion of steel from online tables is α = 1.2 × 10⁻⁵ C⁻¹
Thus;
ΔL = 14 * 1.2 × 10⁻⁵ * (31 - (-5))
ΔL = 6.048 × 10⁻³ m = 0.6048 cm
The formula to get the stress is;
σ = Y * α * ΔT
where;
Y is young's modulus of steel = 20 × 10¹⁰ Pa
α is thermal expansion
ΔT is change in temperature
Thus;
σ = 20 × 10¹⁰ × 1.2 × 10⁻⁵ × (31 - (-5))
σ = 86.4 × 10⁶ Pa
The complete question is;
Steel train rails are laid in 14.0-m long segments placed end to end. The rails are laid on a winter day when their temperature is −5 °C.
(a) How much space must be left between adjacent rails if they are just to touch on a summer day when their temperature is 31.0 °C?
(b) If the rails are originally laid in contact, what is the stress in them on a summer day when their temperature is 31.0 °C?
Read more about Linear Thermal Expansion at; https://brainly.com/question/6985348
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
Geomorphic
Explanation:
Because it's pretty easy if you think of the right ways of geomorphic ways to process the equation
Why is it that we park our vehicles on a driveway, but we drive our vehicles on a parkway?
Answer:
d
Explanation:
d
Describe the meaning of the different symbols and abbreviations found on the documents that they use
Answer:
Engineering drawing abbreviations and symbols are used to communicate and detail the characteristics of an engineering drawing.
There are many abbreviations common to the vocabulary of people who work with engineering drawings in the manufacture and inspection of parts and assemblies.
Technical standards exist to provide glossaries of abbreviations, acronyms, and symbols that may be found on engineering drawings. Many corporations have such standards, which define some terms and symbols specific to them; on the national and international level, like BS8110 or Eurocode 2 as an example.
Hope that help :)
Which contemporary jazz artist was one of the first to use a synthesizer in their recording
Answer:
In this era, Sun Ra was among the first of any musicians to make extensive and pioneering use of synthesizers and other various electronic keyboards; he was given a prototype Minimoog by its inventor, Robert Moog.
Explanation:
Would you expect the correlation between High School GPA and College GPA to be higher when taken from your entire high school class or when taken from only the top 20 students? Why?
Answer:
Even though it has been found that there is a correlation between the specific high school a student attends and their college graduation rate, there is a much stronger correlation between a student's high school GPA, regardless of what high school they attended, and that student completing college.
Explanation:
Please mark as BRAINLIEST PLEASE!!!!!
can ıget the solve of thıs questıon blease
Answer:
50
Explanation:
One signal vin=0.2sin(wt) is applied to a bridge rectifier where Silicon diodes are used. The peak value of output voltage is expected to be
a)can't be estimated due to insufficient data
b)0.0
c)0.2
d)0.4
Answer:
This problem has been solved!
See the answer
7. The voltage that must be less than the breakdown voltage of the diode in order to prevent damage to the diode is the ________.
peak inverse voltage
maximum diode voltage
reverse surge voltage
maximum peak voltage
8. Assume the input signal to a rectifier circuit has a peak value of Vm = 12 V and is at a frequency of 60 Hz. Assume the output load resistance is R = 2kΩ and the ripple voltage is to be limited to Vr= 0.4 V. Determine the capacitance required to yield this specification for a (a) full-wave rectifier and (b) half-wave rectifier. Show all work.
9.A full-wave rectifier is to be designed to produce a peak output voltage of 12 V, deliver 120 mA to the load, and produce an output with a ripple of not more than 5 percent. An input line voltage of 120 V (rms), 60 Hz is available. Consider a bridge type rectifier. Specify the transformer ratio and the size of the required filter capacitor. Show all work.
Explanation:
In a 240v, two bulb parallel circuit, what is
the total wattage of the circuit?
Answer:
As the two lamps are connected across 240 V AC supply, Total current in the circuit = 240/576 A = 5/12 A. As the circuit is purely resistive in nature, Power factor = 1.
60-amp 240-volt circuit: 60 amps x 240 volts = 14,400 watts
Hope that helps:)
Aiman is 80 inches tall. How tall is Aiman in centimeters? Show your work.
Which company introduced the Windows operating system correct answer plz
Answer:
I think Microsoft Corporation
When choosing a respirator for your job, you must conduct a __ test
Answer:
It's a fit test
why is the surface area an important factor in package design?
The surface area to volume (S/V) ratio (the three dimensional extrapolation of the perimeter to area ratio) is an important factor determining heat loss and gain. The greater the surface area the more the heat gain/ loss through it. So small S/V ratios imply minimum heat gain and minimum heat loss.
To minimize the losses and gains through the fabric of a building a compact shape is desirable. The most compact orthogonal building would then be a cube. This configuration, however, may place a large portion of the floor area far from perimeter daylighting. Contrary to this, a building massing that optimizes daylighting and ventilation would be elongated so that more of the building area is closer to the perimeter. While this may appear to compromise the thermal performance of the building, the electrical load and cooling load savings achieved by a well-designed daylighting system will more than compensate for the increased fabric losses.
In hot dry climates S/V ratio should be as low as possible as this would minimize heat gain. In cold-dry climates also S/V ratios should be as low as possible to minimize heat losses. In warm-humid climates the prime concern is creating airy spaces. This might not necessarily minimize the S/V ratio. Further, the materials of construction should be such that they do not store heat.
The surface area can be important for that because for a package design the people need to know like the sizes and measurements and other things and surface area includes some of that stuff so it can be important.
2..Three formations, each 25 m thick, overlie one another. If a constant-velocity vertical flow field is set up across the set of formations with h = 120 m at the top and h = 100 m at the bottom, calculate h at the two internal boundaries. The hydraulic conductivity of the top formation is 0.0001 m/s, the middle formation 0.0005 m/s, and the bottom formation 0.0010 m/s.
The values of h at the two internal boundaries are :
h₁ = 104.625 m h₂ = 101.55 mGiven data :
Z₁ = Z₂ = Z₃ = 25 m
h top = 120 m
h bottom = 100 m
K₁ = 0.0001 m/s
K₂ = 0.0005 m/s
K₃ = 0.0010 m/s
First step : Calculate the value of Keqwe will apply the formula below since flow is perpendicular to the bedding plane
Keq = [tex]\frac{Z1 + Z2 + Z3 }{\frac{Z1}{K1}+\frac{Z2}{K2} + \frac{Z3}{K3} }[/tex] ----- ( 1 )
Insert values given above into equation 1
Therefore ; Keq = 2.307 * 10⁻⁴ m/s
Next step : determine the hydraulic gradientHydraulic gradient ( Ieq ) = head loss / length
= ( 120 - 100 ) / 3 * 25
Ieq = 0.266
Given that the flow is perpendicular to bedding plane
q1 = q2 = q3
V₁ = V₂ = V₃ = V
K₁i₁ = K₂i₂ = K₃i₃ = Keq * ieq
Hence :
V = Keq* Ieq
= 2.307 * 10⁻⁴ * 0.266
= 6.15 * 10⁻⁵ m/s .
Also;
K₁i₁ = Keq * ieq = K₂i₂ = K₃i₃
therefore :
i₁ = 0.615
i₂ = 0.123
i₃ = 0.0615
Final step : determine the value of h at the two internal boundariesPressure at point 1 ( i.e. pressure between first two formations )
h₁ = h top - i₁L₁
= 120 - 0.615 * 25
= 104.625 m
Pressure at point 2 ( i.e. pressure between the 2nd and 3rd formation )
h₂ = h₁ - i₂L₂
= 104.625 - 0.123 * 25
= 101.55 m
Therefore we can conclude that The values of h at the two internal boundaries are : h₁ = 104.625 m , h₂ = 101.55 m
Learn more about boundary calculations : https://brainly.com/question/1287095
what is the difference between zinc and galvanized zinc
Answer:
Both zinc plating and galvanizing is an application of zinc plating. The big difference is thickness: zinc plating is normally 0.2 mils thick. Hot dip galvanizing might be 1.0 mil thick – you get over 5 times the protection with galvanizing. ... After 20 years outdoors a galvanized product will not show signs of rust.
Explanation:
hope this helps! a brainiest is always appreciated
what is living things
I don't know what you mean but it means
Living things :
The term living thing refers to things that are now or once were alive
In order for something to be classified as living, it must grow and develop, use energy, reproduce, be made of cells, respond to its environment, and adapt.
the alternating current frequency used in the United States is
A.50 cps
B.60 cps
C.120 cps
D.208 cps
