POWER PLANT Flashcards

1
Q

Nuclear reactors generally employ

A

Fission

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2
Q

Take least time in starting from cold conditions to full load operations

A

Gas turtibe power plant

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3
Q

Power Plant consumes 3000 tons of coal everyday

With eff 25%

A

183MW

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4
Q

Natural Gas has an energy content of 0.036

A

1.79 x10¹² ft³

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5
Q

A certain amout of fuel can be converted into 3x10^-3

A

183 days

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6
Q

Function of surge tank in the hydropower plant

A

Relieve water hammer pressures in the penstock pipe

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7
Q

Diesel Power Plant

A

Standby

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8
Q

Cannot have a single unit of 100MW

A

Diesel Power plan

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9
Q

Peak deman 80MW and Load of 150MW

A

LF = 57.08%

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10
Q

Effective resistance of conductor is increased by

A

Skin effect and proximity effect

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11
Q

ACSR

A

Aluminum Cable Steel Reinforced

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12
Q

Conductor layer

A

3n² - 3n +1

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13
Q

Diamond Configuration

A

1.6921r

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14
Q

Bundled spacing 45cm

Capacitance

A

0.0127 microF/km

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15
Q

Not considered in analyzing a short Transmission line

A

Shunt admittance

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16
Q

The coil sides are placed a pole pitch apart is

A

Full pitch

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17
Q

Dc Gen parallel

A

100A

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18
Q

When a welding tranformer is used in a resistance welding, it will

A

Step up current

19
Q

Delta delta power trans

20
Q

What affects the speed of a rotating field

A

f and number of poles

21
Q

What affects the speed of a rotating field

A

f and number of poles

22
Q

What affects the speed of a rotating field

A

f and number of poles

23
Q

Speed of induction increases , rotor frequency

24
Q

Grease spot photometer

25
Amplitude modulation generated at very low voltage or power amplifier is ____ modulation
Low level
26
Transponder with bandwidth of 400MHz
200 000
27
Master control center
Mobile telephone switching office
28
Transient current in a circuit results from
Changes in the stored energy
29
Charge is half of its value after 10ms | Find time constant
14ms
30
Energy stored in a 25 uF | W(t) = 12sin²(377t)
9.23coswt
31
(1+i)^n
Components amount factor
32
Commercially used in pressure measuring device today is
Bordon tube
33
50k in air 42k in water 36k in unknown liquid
SG = 1.75
34
Under voltage relay
27
35
Difficult to magnetize steel because
Low permeability
36
Present day capacitors
Ceramic
37
Diode
Nonlinear
38
Voltage build up till constrained by
Saturation of iron
39
Reciprocal of permeability
Reluctivity
40
Max eff of halfwave rectifier
40.6 %
41
Measures insulation of a powerline
Megger
42
In a diode modulator what supplies the negative halfwave
Tuned Circuit
43
Cp operate in freq of
UHF