Lesson 11
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Pennsylvania State University *
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Course
101
Subject
Electrical Engineering
Date
Apr 3, 2024
Type
Pages
2
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Lesson 11.2 Participation: Petroleum Due Apr 3 at 11:59pm
Points 2
Questions 2
Time Limit None
Allowed Attempts Unlimited
Attempt History
Attempt
Time
Score
LATEST
Attempt 1
2 minutes
2 out of 2
Score for this attempt: 2 out of 2
Submitted Feb 5 at 12:59am
This attempt took 2 minutes.
Question 1
1 / 1 pts
Correct!
92%
100%
33%
60%
Question 2
1 / 1 pts
Correct!
Transportation
Commercial
Electrical power generation
Residential
Quiz Score: 2 out of 2
Take the Quiz Again
How much of the transportation sector is fueled by petroleum?
Which sector uses the most of petroleum?
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Related Questions
a) Determine total admittance and impedance.
b) Draw admittance diagram and impedance diagram.
c) Determine the values of C and L.
d) Determine the voltage ?? ⃗ and the currents ?? (Se image ! last task)
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Marked out of 1.50
P Flag question
13. i) The data for a wind turbine is given below:
Wind speed = 14 meters/sec, Length of blade = 10
meter.
Choose the correct statement for this wind turbine.
a. The input wind power to the turbine is 258 KW
b. The input wind power to the turbine is 51.7KW
c. The input wind power to the turbine is 25.8KW
d. The input wind power to the turbine is 517KW
13. ii) Refer to the above wind turbine choose the
correct statement
a. The wind rotor swept area is 40square meters.
b. The wind rotor swept area is 62.4 square meters.
c. The wind rotor swept area is 314 square meters.
d. The wind rotor swept area is 31.4 square meters.
O O
O O
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17- The electromechanical breakdown depend on the type of the dielectric between
two electrodes
a- Right.
b- Wrong
18- Basic Insulation Level (BIL) is related to the design consideration of the electric
device, while Basic protection (BPL) level is related to protection level of the that
device.
a Right.
Wrong.
b-
19- As the voltage regulation increased, receiving end voltage will be reduced.
Right.
b- Wrong
20- We can be using Solar power generation field as a power factor and voltage profile
enhancement in Distribution system.
(aRight.
b- Wrong.
21- From the general electrostatic theories, the field strength at breakdown is given by:
a Eb = V/ do =0.6 [Y/ (€ o Er) ] 0.5.
b- Eb V/ do = 0.6 [Y / (€ 0/Er )] 0.5.
C- Eb V/ do = 0.6 [ Y/(Eo Er) 20.05.
d- Eb V/ do = 0.6 [ Y/ (Eo Er) 10.5.
22- Consider plane electrodes with a solid insulator between them. Find the electric
field strength at breakdown, if Young's modulus = 10000 (V.F/m2). and the relative
permittivity is (36000 TT). If the…
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The system having ±0.5% of F.S.D if the full scale deflection is 50 units, then accuracy is _____
a. ±0.25
b. ±1
c. ±0
d. ±0.5
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2. Explain the following sensors with neat
diagram. (construction, operation and
applications)
a) Load cell b) Turbine meter
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Two persons are standing near a HV equipment and working on it, when an arc flash occurred. Person A was directly in front of the equipment and he managed to move out within 5 msec of arc flash, whereas Person B was standing at 30 deg from the equipment and moved out in 8 msec. Who do you think will be seriously affected and why?
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3)
94
select the proper answer for the following:
1) The main processes that have the responsibility of arc initiation in the switching of the
high voltage power system are:
a) the field and thermal emissions
b) the deionization of the arc path
c) the photoionization and magnetic field emission
2) The dead tank term is used with:
a) Bulk oil circuit breaker
b) Minimum oil circuit breaker
c) Air blast circuit breaker
3) The errors in the PTs can be minimized by:
a) By providing a suitable turn ratio
b) By increasing the winding resistance and reactance
2
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Full explain this question only text typing
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id 15186 18course id- 18678 18content id 220760 18question rum t
Apps
M Gmail
YouTube
Maps
Remaining Time: 53 minutes, 27 seconds
Question Completion Status:
A Moving to another question will save this response.
Question 6
In a capacitive load, the current angle:
Lag the voltage by 90.
In phase with the voltage angle.
Between 90 and -90.
Leads the voltage by 90.
A Moving to another question will save this response.
docx. . . . اختبار الاقتصاد النه
docx. . اختبار الاقتصاد النه
A ll slaislI Lisl.docx
aill slail lil.docx
aill sle
ENG 4) A
ETVIE
69
R
T
Y
U
O
OP
S
F
G
K
1S
16
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Flag question
Time period of voltage waveform(household power supply) in Sultanate of Oman is ____________ sec.
0.05
0.02
0.04
0.01
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The strain gauge can be classified into three types which are not based on __________________________ Principle
a.
Thermoelectric
b.
Electrical
c.
Piezoelectric
d.
Mechanical
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Q: 1 Choose the appropriate answer(s). (CLO1-1, PLO-2, CL-4)
a. Check all statements that apply (points can only be obtained if all boxes are checked
correctly)
Wind power ...
(a) .is uncertain (True) (False)
(b) ...is intermittent (True) (False)
(c) ..is random (True) (False)
(d)..can be forecasted (True) (False)
b. If everything else remains constant, when a significant load is added to the system the
generator rotating speed
(a) Slows down and as a result the torque needs to be increased to keep the frequency
(b) Speeds up and the resulting torque can be used to produce more energy
(c) Speeds up and the turbine must slow down the generator to prevent damage
c. The Hellmann formula describes .
(a) solar irradiance depending on the thickness of the cloud cover.
(b) the failure rate of power transmission lines depending on their length.
(c) wind speed depending on height above ground.
(d) the peak-to-average rate of load in a distribution feeder depending on average load.
d. An…
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each station and the causes are shown below.
Station
C
1
1
A
B
Problems with electricity supplied
4
Computer malfunction
3
4
Malfunctioning electrical equipment
Caused by other human errors
7
7
(a)Suppose that a malfunction was reported and it was found to be caused by
other human errors. What is the probability that it came from station C (1.5
mark)
(b) If a malfunction was reported because of computer malfunction, which
station is most likely reported the malfunction? (1.5 mark)
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Are the systems time varying or time invariant?
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The squaring function, shifted 7 units upward.
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21
Q2/ The one
Per-unit impedaunce digram
line digram 3-Phave pouser System. Draw the
G: 50 MVA, 13.2 KU , Xg = 0.2 Pu
Tig 30MVA , 13.2/220KU, XT,=0-1s P4
Te 30MVA, 22./11 kU, X+Z=0.15pu
T3:30MVA , 13.2/132 kv, XT,=0.15P4
Tu:30MUA 132/11 KV, XTzo.15 Pu
M: 70 MVA, lo.45kv, Xm =0.2 p4
Load, 53 MVA , lo.45kv, o.7 P.R (Lag)
line1: 22o ku, Xline I=4oA
%3D
line2: 132 kv, Xlinez = 6or
Te
220
132
36
Ty
load
38
Select a Common base of 90MUA ,13.2kv
on the generator Side
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Figures / Diagrams, equations and solving of
problems should be written by hand. Take a
picture of it and attach it inside the word file.
a) High Voltages are preferred for Transmission of
Electricity. Why?
b) Why Generation Voltage Levels are low in the
range of 11 kV/ 33 kV etc?
c) Why ACSR Conductors are preferred over
Copper Conductors?
d) Overhead Transmission Lines are preferred for
Transmission of Power for Long Distances, why?
e) Alternating Current is preferred over Direct
Current in Power System, Why?
f) Write the Installed Generation Capacity of
Sultanate of Oman with current energy share
of Conventional and Non-Conventional Energy
Sources.
g) Why the Capacitance effect is neglected in
Short Transmission Line.
h) Distinguish between Lumped or Distributed
elements in a Transmission Line.
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once.
Force Completion This test can be saved and resumed at any point until time has expired. The timer will continue to run if you leave the test.
Remaining Time: 34 minutes, 38 seconds.
* Question Completion Status:
A Moving to another question will save this response.
uestion 1
What is the maximum recommended limit of RMS voltage (in percent) for continuous operation of shunt capacitors under contingency condition?
O 110
120
130
135
A Moving to another question will save this response.
直 0
a
hp
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Question 777 electric
Full explain this question and text typing work only thanks
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Question 2
Not yet answered
Marked out of 1
P Flag question
Which one of the following is not a subsystem
of solar energy plant?
a. Power generation from water turbine
generator
O b. Energy conversion in the solar
concentrators
c. Heat energy storage
O d. Water circulation inside the collector
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what is the answer? VD?
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A Moving to another question will save this response.
Quèstion 8
In class A chopper supplying a DC motor, if the back emf of the motor increases then
the motor current increases
the motor current decreases
the load current will remain constant
None of the above
A Moving to another question will save this response.
week10.pptx
week9.pptx
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Answer:
Find the settling time (5% criterion) for this system with its closed-loop poles as shown.
%23
Select one:
Oa.3.0 sec
Ob.0.75 sec
Oc3.14 sec
Od 7.21 sec
10:38 PM
ENG
19-Apr-2021
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Related Questions
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- Question 666 electric Full explain this question only text typingarrow_forwardid 15186 18course id- 18678 18content id 220760 18question rum t Apps M Gmail YouTube Maps Remaining Time: 53 minutes, 27 seconds Question Completion Status: A Moving to another question will save this response. Question 6 In a capacitive load, the current angle: Lag the voltage by 90. In phase with the voltage angle. Between 90 and -90. Leads the voltage by 90. A Moving to another question will save this response. docx. . . . اختبار الاقتصاد النه docx. . اختبار الاقتصاد النه A ll slaislI Lisl.docx aill slail lil.docx aill sle ENG 4) A ETVIE 69 R T Y U O OP S F G K 1S 16arrow_forwardFlag question Time period of voltage waveform(household power supply) in Sultanate of Oman is ____________ sec. 0.05 0.02 0.04 0.01arrow_forward
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SEE MORE QUESTIONS
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- Electricity for Refrigeration, Heating, and Air C...Mechanical EngineeringISBN:9781337399128Author:Russell E. SmithPublisher:Cengage Learning
Electricity for Refrigeration, Heating, and Air C...
Mechanical Engineering
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Cengage Learning