暗記メーカー

暗記メーカー

​
ログイン
POWERSYSTEM SUPPLYMENTARY
40問 • 2年前
  • premopremo remo
    • 通報

    問題一覧

  • 1

    Overhead transmissions line generally use

    ACSR conductors

  • 2

    On which of the following factors skin effect depends?

    all of the above

  • 3

    Which of the following materials is not for transmission and distribution of electrical power?

    Tungsten

  • 4

    Name the effect which resulted because of the size of conductor frequency and the specific resistance of the conducting material

    Skin effect

  • 5

    In both skin effect and proximity effect

    all of these

  • 6

    What is the recommended horizontal spacing of three phase conductors for a 34.5 kV transmission line?

    4 ft

  • 7

    What is the GMR six strands conductor with pyramid formation in terms of r of individual strand?

    2.102

  • 8

    A 115 kV line has a horizontal configuration. The distance between adjacent conductor is 9 ft. What is the geometric mean distance of the line?

    11.34 ft

  • 9

    A single line distribution linebis installed with two No. 8 conductors spaced 15 cm. The line is 4 km long and the GMR with No 8 is 1.27 x 10^-3 m. What is the inductance with the line?

    7.6 mH

  • 10

    A three phase 60 Hz transposed transmission line has a flat horizontal spacing configuration. The line reactance is 0.486 ohm per km. The conductor geomtric mean radius is 2.0 cm. Determine the spacing D in meter.

    10 m

  • 11

    A 115 kV double circuit 3 phase transmission lien composed of 336.4 MCM ACSR with GMR of 0.0244 ft has a horizontal spacing of 18 ft and a conductor verticsm spacing of 9.0 ft. Calculate the GMR of the parallel lines

    0.744 ft

  • 12

    In transmission lines the cross arms are made of

    steel

  • 13

    Transmission line insulators are made of

    porcelain

  • 14

    The use of strain type insulators is made where the conductor are

    any of the above

  • 15

    Which of thw following type of fault that used only the equivalent positive impedance of the circuit short circuit calculation?

    Three phase fault

  • 16

    In a certain analyses the bases chosen are 69 kV and 100 mVA What is the impedance base?

    47.6 ohms

  • 17

    The percent impedance of a line is 6% at 34.5 kV and 100 MVA base. What is the ohmic impedance?

    0.71

  • 18

    The impedance of a line is 5% on 115 kV and 100 MVA bases. What shall be at 120 kV and 10,000 kVA bases?

    0.22

  • 19

    A 69kV/13.4 kV, 75 MVA transformer has 8% impedance. What is its impedance at base 100 MVA and 66 kV?

    11.66%

  • 20

    A 50 MVA, 33 kV/11kV, three phase wye delta connected transformer has a 3% impedance. what is the per cent impedance at 100 MVA and 34.5 kV bases?

    5.49%

  • 21

    The available fault duty of a certain point of electrical system is 950 MVA at 230 kV. Thevenin's equivalent impedance is 2.63%, What is the available fault current?

    91 kA

  • 22

    At certain location in an electric system, the available fault MVA is 400 MVA, a 15 MVA, 34.4 kV/6.24 kV, 2.5% impedance wye wye geounded transformer is installed at that location. Determine the shirt cirxuit MVA at the secondary.

    240 MVA

  • 23

    For which of the following equipment current rating is not neccesary?

    isolators

  • 24

    A ciruit is disconnected by isolators when

    there is no current in the line

  • 25

    Earthing is neccesary to give protection against

    danger of electric shock

  • 26

    A device which monitor and operstes when certain level has been reached?

    relay

  • 27

    It is a protective relay which compares the sum of incomming currents against the sum of the outgoing currentm it operates when there is unbalance?

    Differential relay

  • 28

    The distribution system is 34.5 kV ungrounded, which arrester shall be installed to protect a distribution transformer

    35 kV

  • 29

    What is the relay that can detect overload in the line?

    overcurrent relay

  • 30

    The basic function of a circuit breaker is to

    extinguish the arc

  • 31

    What is the IEEE standard device number for Overvoltage Relay?

    59

  • 32

    What is the IEEE standard device number of Circuit breaker?

    52

  • 33

    In transmission lines the most effective protection against lighting strikes is one of the following. Which one this?

    Overhead wires

  • 34

    It is computerized data gathering monitoring and switching equipment

    SCADA

  • 35

    Two bus system has Z11 = j0.11565 pu, Z12=Z21=j0.04580 and Z22=j0.13893 pum If can impedance Zb=j0.4 pu is connected between buses 1 and 2. Find the new value of Z11

    j0.10698 pu

  • 36

    Two port network consist of Z11=Z22=j0?16 and Z12=Z21=j0.06 ohm. Find the new Z33 wheb Zb=0.34 ohm is connected from bus 2 to new bus 3

    j0.5

  • 37

    For Y bus systen shown find Y22

    3.666-j11

  • 38

    The material generally used for ammour of high voltage cables is

    steel

  • 39

    Which of the following busbar schemes has the lowest cost?

    skngle bus bar scheme

  • 40

    Which of the following bar schemes is the most expencive

    doubke bus bae double break

    • DC CIRCUITS POWERLINE

    DC CIRCUITS POWERLINE

    premopremo remo · 75問 · 2年前

    DC CIRCUITS POWERLINE

    DC CIRCUITS POWERLINE

    75問 • 2年前
    premopremo remo

    AC CIRCUIT POWERLINE

    AC CIRCUIT POWERLINE

    premopremo remo · 100問 · 2年前

    AC CIRCUIT POWERLINE

    AC CIRCUIT POWERLINE

    100問 • 2年前
    premopremo remo

    DC CIRCUIT SUPPLEMENTARY PROBLEMS

    DC CIRCUIT SUPPLEMENTARY PROBLEMS

    premopremo remo · 80問 · 2年前

    DC CIRCUIT SUPPLEMENTARY PROBLEMS

    DC CIRCUIT SUPPLEMENTARY PROBLEMS

    80問 • 2年前
    premopremo remo

    AC CIRCUIT PASS REVIEWER

    AC CIRCUIT PASS REVIEWER

    premopremo remo · 88問 · 2年前

    AC CIRCUIT PASS REVIEWER

    AC CIRCUIT PASS REVIEWER

    88問 • 2年前
    premopremo remo

    AC CIRCUIT PART 8 PINOYBIX

    AC CIRCUIT PART 8 PINOYBIX

    premopremo remo · 50問 · 2年前

    AC CIRCUIT PART 8 PINOYBIX

    AC CIRCUIT PART 8 PINOYBIX

    50問 • 2年前
    premopremo remo

    AC CIRCUIT PART 1 PINOYBIX

    AC CIRCUIT PART 1 PINOYBIX

    premopremo remo · 20問 · 2年前

    AC CIRCUIT PART 1 PINOYBIX

    AC CIRCUIT PART 1 PINOYBIX

    20問 • 2年前
    premopremo remo

    DC MACHINES POWERLINE REVIEWER

    DC MACHINES POWERLINE REVIEWER

    premopremo remo · 80問 · 2年前

    DC MACHINES POWERLINE REVIEWER

    DC MACHINES POWERLINE REVIEWER

    80問 • 2年前
    premopremo remo

    AC MACHINES (ALTERNATOR) POWERLINE REVIEWER

    AC MACHINES (ALTERNATOR) POWERLINE REVIEWER

    premopremo remo · 64問 · 2年前

    AC MACHINES (ALTERNATOR) POWERLINE REVIEWER

    AC MACHINES (ALTERNATOR) POWERLINE REVIEWER

    64問 • 2年前
    premopremo remo

    POLYPHASE POWERLINE REVIEWER

    POLYPHASE POWERLINE REVIEWER

    premopremo remo · 63問 · 2年前

    POLYPHASE POWERLINE REVIEWER

    POLYPHASE POWERLINE REVIEWER

    63問 • 2年前
    premopremo remo

    AC CIRCUIT POWERLINE SUPPLY

    AC CIRCUIT POWERLINE SUPPLY

    premopremo remo · 59問 · 2年前

    AC CIRCUIT POWERLINE SUPPLY

    AC CIRCUIT POWERLINE SUPPLY

    59問 • 2年前
    premopremo remo

    AC MACHINES (TRANSFORMER)

    AC MACHINES (TRANSFORMER)

    premopremo remo · 54問 · 2年前

    AC MACHINES (TRANSFORMER)

    AC MACHINES (TRANSFORMER)

    54問 • 2年前
    premopremo remo

    CIRCUIT TRANSIENT POWERLINE

    CIRCUIT TRANSIENT POWERLINE

    premopremo remo · 32問 · 2年前

    CIRCUIT TRANSIENT POWERLINE

    CIRCUIT TRANSIENT POWERLINE

    32問 • 2年前
    premopremo remo

    POWERSYSTEM POWERLINE

    POWERSYSTEM POWERLINE

    premopremo remo · 92問 · 2年前

    POWERSYSTEM POWERLINE

    POWERSYSTEM POWERLINE

    92問 • 2年前
    premopremo remo

    POWERLINE REVIEWER POWERPLANT

    POWERLINE REVIEWER POWERPLANT

    premopremo remo · 61問 · 2年前

    POWERLINE REVIEWER POWERPLANT

    POWERLINE REVIEWER POWERPLANT

    61問 • 2年前
    premopremo remo

    AC MOTORS SUPPLEMENTARY

    AC MOTORS SUPPLEMENTARY

    premopremo remo · 45問 · 2年前

    AC MOTORS SUPPLEMENTARY

    AC MOTORS SUPPLEMENTARY

    45問 • 2年前
    premopremo remo

    ALGEBRA

    ALGEBRA

    premopremo remo · 42問 · 2年前

    ALGEBRA

    ALGEBRA

    42問 • 2年前
    premopremo remo

    ANALYTIC GEOMETRY

    ANALYTIC GEOMETRY

    premopremo remo · 33問 · 2年前

    ANALYTIC GEOMETRY

    ANALYTIC GEOMETRY

    33問 • 2年前
    premopremo remo

    TRIGONOMETRY

    TRIGONOMETRY

    premopremo remo · 23問 · 2年前

    TRIGONOMETRY

    TRIGONOMETRY

    23問 • 2年前
    premopremo remo

    HYDRAULICS/

    HYDRAULICS/

    premopremo remo · 28問 · 1年前

    HYDRAULICS/

    HYDRAULICS/

    28問 • 1年前
    premopremo remo

    STRENGTH OF MATERIALS

    STRENGTH OF MATERIALS

    premopremo remo · 7問 · 1年前

    STRENGTH OF MATERIALS

    STRENGTH OF MATERIALS

    7問 • 1年前
    premopremo remo

    ENGINEERING MECHANICS

    ENGINEERING MECHANICS

    premopremo remo · 46問 · 1年前

    ENGINEERING MECHANICS

    ENGINEERING MECHANICS

    46問 • 1年前
    premopremo remo

    AC MACHINES (MOTOR)

    AC MACHINES (MOTOR)

    premopremo remo · 25問 · 1年前

    AC MACHINES (MOTOR)

    AC MACHINES (MOTOR)

    25問 • 1年前
    premopremo remo

    ENGINEERING ECONOMY

    ENGINEERING ECONOMY

    premopremo remo · 47問 · 1年前

    ENGINEERING ECONOMY

    ENGINEERING ECONOMY

    47問 • 1年前
    premopremo remo

    THERMODYNAMICS

    THERMODYNAMICS

    premopremo remo · 50問 · 1年前

    THERMODYNAMICS

    THERMODYNAMICS

    50問 • 1年前
    premopremo remo

    APPLIED PHYSICS AND ELECTROMAGNETICS

    APPLIED PHYSICS AND ELECTROMAGNETICS

    premopremo remo · 59問 · 1年前

    APPLIED PHYSICS AND ELECTROMAGNETICS

    APPLIED PHYSICS AND ELECTROMAGNETICS

    59問 • 1年前
    premopremo remo

    GENERAL CHEMISTRY AND MATERIAL SCIENCE

    GENERAL CHEMISTRY AND MATERIAL SCIENCE

    premopremo remo · 47問 · 1年前

    GENERAL CHEMISTRY AND MATERIAL SCIENCE

    GENERAL CHEMISTRY AND MATERIAL SCIENCE

    47問 • 1年前
    premopremo remo

    PEC 2017

    PEC 2017

    premopremo remo · 62問 · 1年前

    PEC 2017

    PEC 2017

    62問 • 1年前
    premopremo remo

    ESAS 2 EVAL

    ESAS 2 EVAL

    premopremo remo · 69問 · 1年前

    ESAS 2 EVAL

    ESAS 2 EVAL

    69問 • 1年前
    premopremo remo

    ESAS 3 EVAL

    ESAS 3 EVAL

    premopremo remo · 55問 · 1年前

    ESAS 3 EVAL

    ESAS 3 EVAL

    55問 • 1年前
    premopremo remo

    ESAS 1 EVAL

    ESAS 1 EVAL

    premopremo remo · 25問 · 1年前

    ESAS 1 EVAL

    ESAS 1 EVAL

    25問 • 1年前
    premopremo remo

    EE1 CIRCUITS

    EE1 CIRCUITS

    premopremo remo · 93問 · 1年前

    EE1 CIRCUITS

    EE1 CIRCUITS

    93問 • 1年前
    premopremo remo

    EE 2 MACHINES EVAL

    EE 2 MACHINES EVAL

    premopremo remo · 93問 · 1年前

    EE 2 MACHINES EVAL

    EE 2 MACHINES EVAL

    93問 • 1年前
    premopremo remo

    PASS BOARD EXAM

    PASS BOARD EXAM

    premopremo remo · 93問 · 1年前

    PASS BOARD EXAM

    PASS BOARD EXAM

    93問 • 1年前
    premopremo remo

    MATH PRE BOARD POWERLINE

    MATH PRE BOARD POWERLINE

    premopremo remo · 98問 · 1年前

    MATH PRE BOARD POWERLINE

    MATH PRE BOARD POWERLINE

    98問 • 1年前
    premopremo remo

    EE POWERLINE PREBOARD

    EE POWERLINE PREBOARD

    premopremo remo · 3回閲覧 · 100問 · 1年前

    EE POWERLINE PREBOARD

    EE POWERLINE PREBOARD

    3回閲覧 • 100問 • 1年前
    premopremo remo

    ESAS POWERLINE PREBOARD

    ESAS POWERLINE PREBOARD

    premopremo remo · 100問 · 1年前

    ESAS POWERLINE PREBOARD

    ESAS POWERLINE PREBOARD

    100問 • 1年前
    premopremo remo

    ESAS OBJECTIBE TYPES

    ESAS OBJECTIBE TYPES

    premopremo remo · 100問 · 1年前

    ESAS OBJECTIBE TYPES

    ESAS OBJECTIBE TYPES

    100問 • 1年前
    premopremo remo

    EE MODULE 1

    EE MODULE 1

    premopremo remo · 100問 · 1年前

    EE MODULE 1

    EE MODULE 1

    100問 • 1年前
    premopremo remo

    EE MODULE 2.2

    EE MODULE 2.2

    premopremo remo · 74問 · 1年前

    EE MODULE 2.2

    EE MODULE 2.2

    74問 • 1年前
    premopremo remo

    MATH MODULE 2

    MATH MODULE 2

    premopremo remo · 100問 · 1年前

    MATH MODULE 2

    MATH MODULE 2

    100問 • 1年前
    premopremo remo

    MATH MODULE 2 101

    MATH MODULE 2 101

    premopremo remo · 100問 · 1年前

    MATH MODULE 2 101

    MATH MODULE 2 101

    100問 • 1年前
    premopremo remo

    MATH MODULE 2 102

    MATH MODULE 2 102

    premopremo remo · 54問 · 1年前

    MATH MODULE 2 102

    MATH MODULE 2 102

    54問 • 1年前
    premopremo remo

    ESAS MODULE 1

    ESAS MODULE 1

    premopremo remo · 100問 · 1年前

    ESAS MODULE 1

    ESAS MODULE 1

    100問 • 1年前
    premopremo remo

    ESAS MODULE 4

    ESAS MODULE 4

    premopremo remo · 100問 · 1年前

    ESAS MODULE 4

    ESAS MODULE 4

    100問 • 1年前
    premopremo remo

    ESAS MODULE 4.2

    ESAS MODULE 4.2

    premopremo remo · 100問 · 1年前

    ESAS MODULE 4.2

    ESAS MODULE 4.2

    100問 • 1年前
    premopremo remo

    ESAS MODULE 4.3

    ESAS MODULE 4.3

    premopremo remo · 15問 · 1年前

    ESAS MODULE 4.3

    ESAS MODULE 4.3

    15問 • 1年前
    premopremo remo

    EE MODULE 3

    EE MODULE 3

    premopremo remo · 100問 · 1年前

    EE MODULE 3

    EE MODULE 3

    100問 • 1年前
    premopremo remo

    EE MODULE 2

    EE MODULE 2

    premopremo remo · 100問 · 1年前

    EE MODULE 2

    EE MODULE 2

    100問 • 1年前
    premopremo remo

    EE REFRESHER 4

    EE REFRESHER 4

    premopremo remo · 99問 · 1年前

    EE REFRESHER 4

    EE REFRESHER 4

    99問 • 1年前
    premopremo remo

    MATH REFRESHER 4

    MATH REFRESHER 4

    premopremo remo · 98問 · 1年前

    MATH REFRESHER 4

    MATH REFRESHER 4

    98問 • 1年前
    premopremo remo

    ESAS REFRESHER 4

    ESAS REFRESHER 4

    premopremo remo · 100問 · 1年前

    ESAS REFRESHER 4

    ESAS REFRESHER 4

    100問 • 1年前
    premopremo remo

    ESAS REFRESHER 3

    ESAS REFRESHER 3

    premopremo remo · 99問 · 1年前

    ESAS REFRESHER 3

    ESAS REFRESHER 3

    99問 • 1年前
    premopremo remo

    MATH FLASHING

    MATH FLASHING

    premopremo remo · 100問 · 1年前

    MATH FLASHING

    MATH FLASHING

    100問 • 1年前
    premopremo remo

    MATH FLASHING 1.2

    MATH FLASHING 1.2

    premopremo remo · 39問 · 1年前

    MATH FLASHING 1.2

    MATH FLASHING 1.2

    39問 • 1年前
    premopremo remo

    MATH MULTIVECTOR

    MATH MULTIVECTOR

    premopremo remo · 32問 · 1年前

    MATH MULTIVECTOR

    MATH MULTIVECTOR

    32問 • 1年前
    premopremo remo

    問題一覧

  • 1

    Overhead transmissions line generally use

    ACSR conductors

  • 2

    On which of the following factors skin effect depends?

    all of the above

  • 3

    Which of the following materials is not for transmission and distribution of electrical power?

    Tungsten

  • 4

    Name the effect which resulted because of the size of conductor frequency and the specific resistance of the conducting material

    Skin effect

  • 5

    In both skin effect and proximity effect

    all of these

  • 6

    What is the recommended horizontal spacing of three phase conductors for a 34.5 kV transmission line?

    4 ft

  • 7

    What is the GMR six strands conductor with pyramid formation in terms of r of individual strand?

    2.102

  • 8

    A 115 kV line has a horizontal configuration. The distance between adjacent conductor is 9 ft. What is the geometric mean distance of the line?

    11.34 ft

  • 9

    A single line distribution linebis installed with two No. 8 conductors spaced 15 cm. The line is 4 km long and the GMR with No 8 is 1.27 x 10^-3 m. What is the inductance with the line?

    7.6 mH

  • 10

    A three phase 60 Hz transposed transmission line has a flat horizontal spacing configuration. The line reactance is 0.486 ohm per km. The conductor geomtric mean radius is 2.0 cm. Determine the spacing D in meter.

    10 m

  • 11

    A 115 kV double circuit 3 phase transmission lien composed of 336.4 MCM ACSR with GMR of 0.0244 ft has a horizontal spacing of 18 ft and a conductor verticsm spacing of 9.0 ft. Calculate the GMR of the parallel lines

    0.744 ft

  • 12

    In transmission lines the cross arms are made of

    steel

  • 13

    Transmission line insulators are made of

    porcelain

  • 14

    The use of strain type insulators is made where the conductor are

    any of the above

  • 15

    Which of thw following type of fault that used only the equivalent positive impedance of the circuit short circuit calculation?

    Three phase fault

  • 16

    In a certain analyses the bases chosen are 69 kV and 100 mVA What is the impedance base?

    47.6 ohms

  • 17

    The percent impedance of a line is 6% at 34.5 kV and 100 MVA base. What is the ohmic impedance?

    0.71

  • 18

    The impedance of a line is 5% on 115 kV and 100 MVA bases. What shall be at 120 kV and 10,000 kVA bases?

    0.22

  • 19

    A 69kV/13.4 kV, 75 MVA transformer has 8% impedance. What is its impedance at base 100 MVA and 66 kV?

    11.66%

  • 20

    A 50 MVA, 33 kV/11kV, three phase wye delta connected transformer has a 3% impedance. what is the per cent impedance at 100 MVA and 34.5 kV bases?

    5.49%

  • 21

    The available fault duty of a certain point of electrical system is 950 MVA at 230 kV. Thevenin's equivalent impedance is 2.63%, What is the available fault current?

    91 kA

  • 22

    At certain location in an electric system, the available fault MVA is 400 MVA, a 15 MVA, 34.4 kV/6.24 kV, 2.5% impedance wye wye geounded transformer is installed at that location. Determine the shirt cirxuit MVA at the secondary.

    240 MVA

  • 23

    For which of the following equipment current rating is not neccesary?

    isolators

  • 24

    A ciruit is disconnected by isolators when

    there is no current in the line

  • 25

    Earthing is neccesary to give protection against

    danger of electric shock

  • 26

    A device which monitor and operstes when certain level has been reached?

    relay

  • 27

    It is a protective relay which compares the sum of incomming currents against the sum of the outgoing currentm it operates when there is unbalance?

    Differential relay

  • 28

    The distribution system is 34.5 kV ungrounded, which arrester shall be installed to protect a distribution transformer

    35 kV

  • 29

    What is the relay that can detect overload in the line?

    overcurrent relay

  • 30

    The basic function of a circuit breaker is to

    extinguish the arc

  • 31

    What is the IEEE standard device number for Overvoltage Relay?

    59

  • 32

    What is the IEEE standard device number of Circuit breaker?

    52

  • 33

    In transmission lines the most effective protection against lighting strikes is one of the following. Which one this?

    Overhead wires

  • 34

    It is computerized data gathering monitoring and switching equipment

    SCADA

  • 35

    Two bus system has Z11 = j0.11565 pu, Z12=Z21=j0.04580 and Z22=j0.13893 pum If can impedance Zb=j0.4 pu is connected between buses 1 and 2. Find the new value of Z11

    j0.10698 pu

  • 36

    Two port network consist of Z11=Z22=j0?16 and Z12=Z21=j0.06 ohm. Find the new Z33 wheb Zb=0.34 ohm is connected from bus 2 to new bus 3

    j0.5

  • 37

    For Y bus systen shown find Y22

    3.666-j11

  • 38

    The material generally used for ammour of high voltage cables is

    steel

  • 39

    Which of the following busbar schemes has the lowest cost?

    skngle bus bar scheme

  • 40

    Which of the following bar schemes is the most expencive

    doubke bus bae double break