Which is the engineering name of the complicated circuit board in EC circuits?
A Printed Circuit Board (PCB) or a Printed Wired Board (PWB)Answer:
PCB (Printed Circuit Board)
Explanation:
Construction:
Initially, this board is an insulator plate. A circuit diagram is clearly drawn by a computer and scanned.
This plate is put under a multipurpose printer and the circuit is printed onto the plate with conductive copper tiny plates and wires.
A shaft of a circular cross section is supported by two housings at B and C. The shaft
is subjected to static loads: concentrated force N applied by gear D and an applied torque T. The yielding strength of the shaft is Sy, and the diameter of the shaft is d. For circular cross sections, | = nd*/64, J = md*/32. The length of the shaft is L. Transverse shear stress is ignored here.
1) Draw the bending moment diagram of the shaft. Specify the location of the weakest (most dangerous) cross section A on bending moment diagram.
2) Draw the weakest point(s) on cross section A.
3) Determine the von-Mises stress at the weakest point(s).
4) Determine the factor of safety n based on Distortion Energy Theory.
Answer:
1) The bending moment diagram of the shaft is shown in Figure 1. The weakest cross section A is located at the point where the bending moment is maximum.
2) The weakest point on cross section A is located at the point where the bending moment is maximum.
3) The von-Mises stress at the weakest point is given by:
σ = M/I
where M is the bending moment and I is the moment of inertia of the cross section.
4) The factor of safety n is given by:
n = Sy/σ
where Sy is the yield strength of the shaft and σ is the von-Mises stress at the weakest point.
Explanation:
Hope this helps!
Express (-75+j45) in Phasor form.
Explanation:
Note that the working equation that converts a complex number from rectangular to phasor form is given by
a+bi=r 20
Hence, the equivalent in phasor form is 87.46<149.04°
A 13.2 KV circuit has a 10,000 kVA load with a 0.85 lagging power factor. How much capacitive reactive power (in KVAR) is needed to conect the P.F. to 0.97 lagging?
Explanation:
Solving for the capacitive reactive power, we have
Qc = 8,500 (tan(-cos (0.85)) - tan(-cos¹ (0.97)))
Qc = -3137.5261 = -3138 KVAR
__________ is the classification of a building or structure into one of the five types or subtypes included in the model building codes, based on types of materials and structural protection afforded.
Construction Classification is the classification of a building or structure into one of the five types or subtypes included in the model building codes, based on types of materials and structural protection afforded.
What is a building?A building can be defined as a structure which has a roof and a wall a building is a permanent structure which has a base and a very study materials which are being used to create a stable structure with a foundation.
Construction classification can be defined as type of building construction which is being legalized by the people. These the building reduces that quality damages also it provides a safe and sound structure with is often guarded.
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How many grains are on the surface of the head of a pin? assume that the head of a pin is spherical with a 1-mm diameter and has an astm grain size of 10
Answer:
Given, diameter of pin head d = 1 mm = 1/25.4 = 0.0394 in Surface area of a pinhead, A = 4pr^2 =
Explanation:
eesh
a threaded rod has 11 threads per inch how many threads are there in 16 inches of the rod
The number of threads in 16 inches of the rod is 176 threads
Calculation and ParametersGiven that:
1 threaded rod= 11 threads per inch
Therefore, to find the number of threads in 16 inches of the rod,
We would have to multiply and this is given below:
16 * 11= 176 threads
This answer is gotten because a threaded rod has 11 threads per inch and when there are 16 inches of rod, to find the number of inches, you would have to multiply the values together.
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[tex]V_{rms} = 20 < 60° V\\ I_{rms} = 2 < 23.1°A [/tex]
What is the complex power S?
(A) (1.9 + j24) VA
(B) (16.4 + j21.1) VA
(C) (7,8 - j16.5) VA
(D) (21.1 + j16.4) VA
Explanation:
Now we change into rectangular form
=40 cos (36.9°) +j 40 sin (36.9°) VA
=31.9+J24VA
Hence, correct option (31.9 +j 24) VA
I don’t know where did the prerson come from?
Answer:
I am from Nepal where are you from
ech a says that brake shoe linings saturated with brake fluid from a leaky wheel cylinder can be cleaned with brake cleaner and reused as long as they aren’t worn out. tech b says that brake shoes should be replaced in axle sets. who is correct?
Based on the information provided, the technician who is correct is: B. Technician B.
What is a braking system?A braking system can be defined as a mechanical system which comprises various components that are designed and developed to bring an automobile vehicle in motion to a stop, when applied by a driver.
How to diagnose a brake system?In order for a technician to diagnose a brake system, the following symptoms should be adequately and appropriately checked and used by the technician:
NoisesSmellsAbnormal brake pedal movements.Improper braking action.Based on the information provided, we can reasonably infer and logically deduce that the technician who is correct is Technician B because brake shoes are to be replaced in axle sets.
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Complete Question:
Tech a says that brake shoe linings saturated with brake fluid from a leaky wheel cylinder can be cleaned with brake cleaner and reused as long as they aren’t worn out. tech b says that brake shoes should be replaced in axle sets. who is correct?
Technician A.
Technician B.
Neither Technician A nor Technician B
Both Technician A and Technician B
7. The dimensional volume contained in a standard full-size welding cylinder is blank cubic feet.
A. 5 to 10
B. 20 to 30
C. 100
D. 1.5 to 2
Answer:
I say C
Explanation:
tech a says that black exhaust indicates a very rich-running engine. tech b says that white exhaust can indicate coolant in the exhaust. who is correct?
Since tech A says that black exhaust indicates a very rich-running engine is false and since tech b says that white exhaust can indicate coolant in the exhaust, Tech B is correct.
What does it mean when your exhaust pipe is black?Black exhaust smoke is known to be one that can show up if the vehicle is said to be burning too much fuel.
Note that this situation could be as a result of a clogged air filter, the malfunctioning of the fuel injection system, a blocked manifold, or other forms of issues.
Therefore, Since tech A says that black exhaust indicates a very rich-running engine is false and since tech b says that white exhaust can indicate coolant in the exhaust, Tech B is correct.
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