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EE Lesson Objectives 3

EE Lesson Objectives 3

100問 • 2年前

Hazel Lynn Ramos

問題一覧

1

The customer is only charged or credited as the case may be, for the difference between the electricity supplied by the Distribution Utility and electricity it supplies to the Distribution Utility when the times it has excess VRE generation both of which are metered using either 2 uni-directional meters, one for import and one for export, or a single bi-directional meter. What do you call this scheme?

Net metering

2

Which of the following is NOT part of unbundling rate in your Meralco electric bill?

Supplier

3

RA 7832 concerns on

pilferage of electricity, theft of transmission materials and rationalizing of system loss

4

An ACSR conductor has n layers around its single center strand, the total number of strands will be

3n^2 + 3n + 1

5

Overhead transmission lines are protected from lightning with the use of which? I. Overhead grounding conductor II. Surge arrestors

either I or II

6

A two terminal pair of network of a transmission line can be represented by a I. Π network II. T network

Both I and II

7

Which of the following insulators will be selected for high voltage applications?

suspension type

8

Guy wire is used in the construction of distribution lines for what purpose?

supporting the pole

9

Which of the following is not included in a basic communication circuit?

antenna

10

The effect of series capacitor on a transmission line is to improve

steady state stability

11

Which of the following shall NOT be excluded in the calculation of reliability standard indices of the distributor asset by the Philippine Distribution Code?

Outages that occur on the primary lines of the distribution system

12

A conductor has four identical strands arranged in diamond configuration. Find the GMR of the conductor in terms of the radius r of each strand.

1.6921r

13

By increasing the transmission voltage double of its original value, the same power can be dispatch keeping the line loss

One-fourth the original value

14

What is the purpose of reactor in short circuit?

To lessen the current in short circuit

15

Which power plant will require the highest initial cost?

Nuclear power plant

16

In the design of electrical power systems, the IEEE device numbers identify features of a protective device such as relay or circuit breaker. Which of the following is the device number for the ac circuit breaker?

52

17

A string efficiency of 100% means that

potential across each disc is the same

18

Equalizer bus is necessary for the parallel operation of the:

series and over compound generators

19

Nuclear reactors generally employ

fission

20

Series capacitors are used to compensate for

Compensate for line inductive reactance

21

Which of the following that uses water power is a limited storage power plant?

Pumped Storage

22

Wooden transmission poles are protected from termites using

creosite oil

23

The value of inductance per conductor in three phase line is ______ times the loop inductance for single phase lines.

1/2

24

___ is a process by which atoms are split apart to release energy.

fission

25

ohm's law does not apply to

semiconductor

26

what is the function of the surge tank in the hydro power plant

relieve water hammer pressures in the pen stock pipe

27

the resistance of resistor 1 is twice of resistor 2. the two are connected in series and a potential differences maintain across a combination. what is the rate of thermal energy generation in resistor 1.

twice that in resistor 2

28

the hazards exist only during the period of time the ___ is there.

fault

29

which of these is not a simplex type of electronic communications?

telephone

30

a good example of kinetic energy is provided by

a tornado

31

which of the following is the basic symbol used as a beginning or termination in logic diagram or flowchart

oval symbol

32

which of the following is used as a decision in logic diagram or flowchart

diamond box

33

which of the following is used as input or output in flowchart

parallelogram symbol

34

use in flowchart to indicate process or task

rectangular box

35

Which is not 180 degrees apart?

Xc and Ic

36

in a loss-free RLC circuit, the transient current is

sinusoidal

37

at very low frequencies a series RC circuit behaves as almost purely

capacitive

38

one of the advantages of distributing the winding in alternators is to

improve voltage waveform

39

the effect of corona is

increase energy loss

40

the rms value of pure cosine function is

0.707 of peak value

41

energy radiated continuously in the form of lighting waves

luminous flux

42

efficiency is secondary consideration in case of

peak load plants

43

the condition of a liquid electrolyte is measured in terms of its

specific gravity

44

if a field of a dc shunt motor is open

the speed of the motor will become very high

45

the purpose of insulating oil when used on power circuit breaker are the following, EXCEPT;

interrupter

46

In a power plant a reserve generating capacity which is in operation but not in service is known as

Hot reserve

47

is a reserve generating capacity which is available for service but is not in operation

cold reserve

48

is a reserve generating capacity which is connected to bus and is ready to take load

spinning reserve

49

the type of AC distribution system commonly used to supply both light and power is the

3 phase wye system with neutral wire

50

Receptacle outlet that is part of the luminaire or appliance, located within cabinets or cupboards shall be located not more than ____________ mm, above the floor.

1700

51

What is the classification of a turbine if the water moves along vanes toward the axis of rotation of the runner?

Radial flow

52

one advantage of disturbing the winding in alternator is to

improve voltage waveform

53

the viscosity of a fluid varies with

temperature

54

Inside a hollow spherical conductor

electric field is zero

55

Residual magnetism is necessary in a

self excited generator

56

In case of delta connected circuit, when one resistor is open power will be

reduced by 1/3

57

Transient current in an RLC circuit is oscillatory when

R < 2√L/C

58

With reference to armature windings wave windings are often called ___ windings

series

59

This is the compact arrangement of switching devices

switchgear

60

The under voltage relays are usually used for what protection of the electrical equipment

motor protection

61

In full wave rectification if the input frequency is 60 hz then output has a frequency of

120 hz

62

The specific gravity of a lead acid cell is often used as a measure of its

state of charge

63

The commonly used light sensor in a modern fax machine is the

charge couple device

64

A standard candle emits a total luminous flux of ___ lumens

12.57

65

A space station with communication equipment that synchronizes with earth's orbit

satellite

66

Impurities in an electrolyte can cause an internal short circuit condition called

local action

67

As load power factor of an alternator becomes more lagging, the value of generated voltage required to give rated terminal voltage

increase

68

In a commutator

mica is harder than copper

69

Centrifugal switch disconnects the auxiliary winding of the motor at about __ percent of synchronous speed

70 to 80

70

The material commonly used for insulation in high voltage cables is

paper

71

For a series rlc circuit at resonance, the current amplitude is ___ for a fixed voltage amplitude and the power factor is ___

maximum, unity

72

If the length of the cable is doubled, its capacitance

becomes double

73

Wye-delta starting is equivalent to auto transformer starting with ___ tapping

58%

74

These days dc motors are widely used in

electric tractions

75

Breather mounted on transformer tank contains

calcium

76

As load power factor of an alternator becomes more leading, the value of generated voltage required to give rated terminal voltage

decrease

77

The process by which metallic parts are demagnetized is called

degaussing

78

Present day capacitors which have high capacitance in small size use a diameter of

ceramic

79

The current carrying capacity of copper wire having twice diameter of another copper wire is

four times

80

What kind of device is diode

nonlinear

81

If the line frequency is 60 hz, the output frequency of a bridge rectifier is

120 hz

82

In a shunt generator the voltage builds up till constrained by

saturation of iron

83

For proper parallel operation, ac polyphase alternators must have the same

voltage rating

84

The series field of a short shunt compound dc generator is excited by ___ current

load

85

The reciprocal of permeability is

reluctivity

86

For which of the following sinusoids, the rms value and mean value is the same

square wave

87

If the load current and flux of a dc motor are held constant and voltage applied across its armature is increased by 10%, its speed will

increase by about 10%

88

If there is an open circuit in the rotor of a squirrel cage induction motor

motor will not start

89

In a synchronous machine when the router speed becomes more than the synchronous speed during hunting, the damping bars develop ___ torque

induction generation

90

At leading power factor the armature flux in an alternator ___ the rotor of flux

aids

91

This is the rating of power circuit breakers used to be the basis in replacing its contacts

duty cycle

92

The voltage applied across the resistor was reduced by 50%. The power consumed by the resistor will be reduced by

75%

93

The effect of the dielectric is to

reduce the working voltage

94

Which of the following is not a full duplex

radar

95

In a circuit breaker the time duration from the instant of the fall to the extinction of arc is known as

total clearing time

96

For an RL circuit, the power factor cannot be less than ___ or greater than ___

0, 1

97

_______ is the overall energy program formulated and updated yearly by the DOE, submitted to congress pursuant to RA 7638

philippine energy plan

98

The lighting load for a dwelling express in terms of a unit load in volt ampere per square meter must be at least

24

99

The capacitors of power factor correction are rated in terms of

KVAR

100

In a balance three phase wye connected circuit the line voltage are equal

and so are the line currents

Math

Math

Hazel Lynn Ramos · 95問 · 2年前

Math

Math

95問 • 2年前

Hazel Lynn Ramos

ESAS Lesson Objectives 1

ESAS Lesson Objectives 1

Hazel Lynn Ramos · 100問 · 2年前

ESAS Lesson Objectives 1

ESAS Lesson Objectives 1

100問 • 2年前

Hazel Lynn Ramos

ESAS Lesson Objectives 2

ESAS Lesson Objectives 2

Hazel Lynn Ramos · 100問 · 2年前

ESAS Lesson Objectives 2

ESAS Lesson Objectives 2

100問 • 2年前

Hazel Lynn Ramos

ESAS Lesson Objectives 3

ESAS Lesson Objectives 3

Hazel Lynn Ramos · 100問 · 2年前

ESAS Lesson Objectives 3

ESAS Lesson Objectives 3

100問 • 2年前

Hazel Lynn Ramos

Other Terms for ESAS

Other Terms for ESAS

Hazel Lynn Ramos · 100問 · 2年前

Other Terms for ESAS

Other Terms for ESAS

100問 • 2年前

Hazel Lynn Ramos

ESAS Matlab

ESAS Matlab

Hazel Lynn Ramos · 99問 · 2年前

ESAS Matlab

ESAS Matlab

99問 • 2年前

Hazel Lynn Ramos

ESAS 200 objectives 1

ESAS 200 objectives 1

Hazel Lynn Ramos · 100問 · 2年前

ESAS 200 objectives 1

ESAS 200 objectives 1

100問 • 2年前

Hazel Lynn Ramos

ESAS 200 objectives 2

ESAS 200 objectives 2

Hazel Lynn Ramos · 100問 · 2年前

ESAS 200 objectives 2

ESAS 200 objectives 2

100問 • 2年前

Hazel Lynn Ramos

ESAS 350 objectives 1

ESAS 350 objectives 1

Hazel Lynn Ramos · 100問 · 2年前

ESAS 350 objectives 1

ESAS 350 objectives 1

100問 • 2年前

Hazel Lynn Ramos

ESAS 350 objectives 2

ESAS 350 objectives 2

Hazel Lynn Ramos · 100問 · 2年前

ESAS 350 objectives 2

ESAS 350 objectives 2

100問 • 2年前

Hazel Lynn Ramos

ESAS 350 objectives 3

ESAS 350 objectives 3

Hazel Lynn Ramos · 44問 · 2年前

ESAS 350 objectives 3

ESAS 350 objectives 3

44問 • 2年前

Hazel Lynn Ramos

EE

EE

Hazel Lynn Ramos · 100問 · 2年前

EE

EE

100問 • 2年前

Hazel Lynn Ramos

EE Lesson Objectives 1

EE Lesson Objectives 1

Hazel Lynn Ramos · 100問 · 2年前

EE Lesson Objectives 1

EE Lesson Objectives 1

100問 • 2年前

Hazel Lynn Ramos

EE Lesson Objectives 2

EE Lesson Objectives 2

Hazel Lynn Ramos · 100問 · 2年前

EE Lesson Objectives 2

EE Lesson Objectives 2

100問 • 2年前

Hazel Lynn Ramos

EE Terms Additional

EE Terms Additional

Hazel Lynn Ramos · 100問 · 1年前

EE Terms Additional

EE Terms Additional

100問 • 1年前

Hazel Lynn Ramos

問題一覧

1

The customer is only charged or credited as the case may be, for the difference between the electricity supplied by the Distribution Utility and electricity it supplies to the Distribution Utility when the times it has excess VRE generation both of which are metered using either 2 uni-directional meters, one for import and one for export, or a single bi-directional meter. What do you call this scheme?

Net metering

2

Which of the following is NOT part of unbundling rate in your Meralco electric bill?

Supplier

3

RA 7832 concerns on

pilferage of electricity, theft of transmission materials and rationalizing of system loss

4

An ACSR conductor has n layers around its single center strand, the total number of strands will be

3n^2 + 3n + 1

5

Overhead transmission lines are protected from lightning with the use of which? I. Overhead grounding conductor II. Surge arrestors

either I or II

6

A two terminal pair of network of a transmission line can be represented by a I. Π network II. T network

Both I and II

7

Which of the following insulators will be selected for high voltage applications?

suspension type

8

Guy wire is used in the construction of distribution lines for what purpose?

supporting the pole

9

Which of the following is not included in a basic communication circuit?

antenna

10

The effect of series capacitor on a transmission line is to improve

steady state stability

11

Which of the following shall NOT be excluded in the calculation of reliability standard indices of the distributor asset by the Philippine Distribution Code?

Outages that occur on the primary lines of the distribution system

12

A conductor has four identical strands arranged in diamond configuration. Find the GMR of the conductor in terms of the radius r of each strand.

1.6921r

13

By increasing the transmission voltage double of its original value, the same power can be dispatch keeping the line loss

One-fourth the original value

14

What is the purpose of reactor in short circuit?

To lessen the current in short circuit

15

Which power plant will require the highest initial cost?

Nuclear power plant

16

In the design of electrical power systems, the IEEE device numbers identify features of a protective device such as relay or circuit breaker. Which of the following is the device number for the ac circuit breaker?

52

17

A string efficiency of 100% means that

potential across each disc is the same

18

Equalizer bus is necessary for the parallel operation of the:

series and over compound generators

19

Nuclear reactors generally employ

fission

20

Series capacitors are used to compensate for

Compensate for line inductive reactance

21

Which of the following that uses water power is a limited storage power plant?

Pumped Storage

22

Wooden transmission poles are protected from termites using

creosite oil

23

The value of inductance per conductor in three phase line is ______ times the loop inductance for single phase lines.

1/2

24

___ is a process by which atoms are split apart to release energy.

fission

25

ohm's law does not apply to

semiconductor

26

what is the function of the surge tank in the hydro power plant

relieve water hammer pressures in the pen stock pipe

27

the resistance of resistor 1 is twice of resistor 2. the two are connected in series and a potential differences maintain across a combination. what is the rate of thermal energy generation in resistor 1.

twice that in resistor 2

28

the hazards exist only during the period of time the ___ is there.

fault

29

which of these is not a simplex type of electronic communications?

telephone

30

a good example of kinetic energy is provided by

a tornado

31

which of the following is the basic symbol used as a beginning or termination in logic diagram or flowchart

oval symbol

32

which of the following is used as a decision in logic diagram or flowchart

diamond box

33

which of the following is used as input or output in flowchart

parallelogram symbol

34

use in flowchart to indicate process or task

rectangular box

35

Which is not 180 degrees apart?

Xc and Ic

36

in a loss-free RLC circuit, the transient current is

sinusoidal

37

at very low frequencies a series RC circuit behaves as almost purely

capacitive

38

one of the advantages of distributing the winding in alternators is to

improve voltage waveform

39

the effect of corona is

increase energy loss

40

the rms value of pure cosine function is

0.707 of peak value

41

energy radiated continuously in the form of lighting waves

luminous flux

42

efficiency is secondary consideration in case of

peak load plants

43

the condition of a liquid electrolyte is measured in terms of its

specific gravity

44

if a field of a dc shunt motor is open

the speed of the motor will become very high

45

the purpose of insulating oil when used on power circuit breaker are the following, EXCEPT;

interrupter

46

In a power plant a reserve generating capacity which is in operation but not in service is known as

Hot reserve

47

is a reserve generating capacity which is available for service but is not in operation

cold reserve

48

is a reserve generating capacity which is connected to bus and is ready to take load

spinning reserve

49

the type of AC distribution system commonly used to supply both light and power is the

3 phase wye system with neutral wire

50

Receptacle outlet that is part of the luminaire or appliance, located within cabinets or cupboards shall be located not more than ____________ mm, above the floor.

1700

51

What is the classification of a turbine if the water moves along vanes toward the axis of rotation of the runner?

Radial flow

52

one advantage of disturbing the winding in alternator is to

improve voltage waveform

53

the viscosity of a fluid varies with

temperature

54

Inside a hollow spherical conductor

electric field is zero

55

Residual magnetism is necessary in a

self excited generator

56

In case of delta connected circuit, when one resistor is open power will be

reduced by 1/3

57

Transient current in an RLC circuit is oscillatory when

R < 2√L/C

58

With reference to armature windings wave windings are often called ___ windings

series

59

This is the compact arrangement of switching devices

switchgear

60

The under voltage relays are usually used for what protection of the electrical equipment

motor protection

61

In full wave rectification if the input frequency is 60 hz then output has a frequency of

120 hz

62

The specific gravity of a lead acid cell is often used as a measure of its

state of charge

63

The commonly used light sensor in a modern fax machine is the

charge couple device

64

A standard candle emits a total luminous flux of ___ lumens

12.57

65

A space station with communication equipment that synchronizes with earth's orbit

satellite

66

Impurities in an electrolyte can cause an internal short circuit condition called

local action

67

As load power factor of an alternator becomes more lagging, the value of generated voltage required to give rated terminal voltage

increase

68

In a commutator

mica is harder than copper

69

Centrifugal switch disconnects the auxiliary winding of the motor at about __ percent of synchronous speed

70 to 80

70

The material commonly used for insulation in high voltage cables is

paper

71

For a series rlc circuit at resonance, the current amplitude is ___ for a fixed voltage amplitude and the power factor is ___

maximum, unity

72

If the length of the cable is doubled, its capacitance

becomes double

73

Wye-delta starting is equivalent to auto transformer starting with ___ tapping

58%

74

These days dc motors are widely used in

electric tractions

75

Breather mounted on transformer tank contains

calcium

76

As load power factor of an alternator becomes more leading, the value of generated voltage required to give rated terminal voltage

decrease

77

The process by which metallic parts are demagnetized is called

degaussing

78

Present day capacitors which have high capacitance in small size use a diameter of

ceramic

79

The current carrying capacity of copper wire having twice diameter of another copper wire is

four times

80

What kind of device is diode

nonlinear

81

If the line frequency is 60 hz, the output frequency of a bridge rectifier is

120 hz

82

In a shunt generator the voltage builds up till constrained by

saturation of iron

83

For proper parallel operation, ac polyphase alternators must have the same

voltage rating

84

The series field of a short shunt compound dc generator is excited by ___ current

load

85

The reciprocal of permeability is

reluctivity

86

For which of the following sinusoids, the rms value and mean value is the same

square wave

87

If the load current and flux of a dc motor are held constant and voltage applied across its armature is increased by 10%, its speed will

increase by about 10%

88

If there is an open circuit in the rotor of a squirrel cage induction motor

motor will not start

89

In a synchronous machine when the router speed becomes more than the synchronous speed during hunting, the damping bars develop ___ torque

induction generation

90

At leading power factor the armature flux in an alternator ___ the rotor of flux

aids

91

This is the rating of power circuit breakers used to be the basis in replacing its contacts

duty cycle

92

The voltage applied across the resistor was reduced by 50%. The power consumed by the resistor will be reduced by

75%

93

The effect of the dielectric is to

reduce the working voltage

94

Which of the following is not a full duplex

radar

95

In a circuit breaker the time duration from the instant of the fall to the extinction of arc is known as

total clearing time

96

For an RL circuit, the power factor cannot be less than ___ or greater than ___

0, 1

97

_______ is the overall energy program formulated and updated yearly by the DOE, submitted to congress pursuant to RA 7638

philippine energy plan

98

The lighting load for a dwelling express in terms of a unit load in volt ampere per square meter must be at least

24

99

The capacitors of power factor correction are rated in terms of

KVAR

100

In a balance three phase wye connected circuit the line voltage are equal

and so are the line currents