The transmission lines which feed different sub-stations represent __________.

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Answer :

The transmission lines which feed different sub-stations represent primary distribution.

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Related questions

function of equipment’s used in sub-stations : (i) Earth Switch (ii) Relay (iii) Lighting Arrester (iv) Auxiliary transformer

Description : function of equipment’s used in sub-stations : (i) Earth Switch (ii) Relay (iii) Lighting Arrester (iv) Auxiliary transformer 

Last Answer : (i) Earth Switch   It's function is to discharge the ground capacitance when line is open circuited for maintenance purpose by isolator.) Earthing switch is inter - locked with isolator from the safety point ... 3-ph, 4wire, 400V) to give supply to control room, area lighting, staff quarters etc, 

At a grid sub stations the voltage is stepped up to reduce loss of which thing? -Do You Know?

Description : At a grid sub stations the voltage is stepped up to reduce loss of which thing? -Do You Know?

Last Answer : answer:

The standing wave ratio of a 75 Ω transmission line used to feed a 300 Ω resistive load will be _____.

Description : The standing wave ratio of a 75 Ω transmission line used to feed a 300 Ω resistive load will be _____.

Last Answer : The standing wave ratio of a 75 Ω transmission line used to feed a 300 Ω resistive load will be 4.

The last three digits of a PIN code represent: (a) zone (b) sub-zone (c) sorting district (d) mailing route

Description : The last three digits of a PIN code represent: (a) zone (b) sub-zone (c) sorting district (d) mailing route

Last Answer : Ans: (c)

The optimum performance for reactors operating in parallel is obtained when the feed stream is distributed in such a way, that the (A) Space time for each parallel line is same (B) Space time for parallel lines is different (C) Larger reactors have more space time compared to smaller ones (D) None of these

Description : The optimum performance for reactors operating in parallel is obtained when the feed stream is distributed in such a way, that the (A) Space time for each parallel line is same (B) Space time for ... is different (C) Larger reactors have more space time compared to smaller ones (D) None of these

Last Answer : (A) Space time for each parallel line is same

The total space loss of transmission and reception for two ground stations with uplink frequency 8GHz and a downlink of 6 GHz with angle of elevations of 3˚ and 7˚ A respectively is A. 403 dB B. 100 dB C. 20 dB D. 215 dB

Description : The total space loss of transmission and reception for two ground stations with uplink frequency 8GHz and a downlink of 6 GHz with angle of elevations of 3˚ and 7˚ A respectively is A. 403 dB B. 100 dB C. 20 dB D. 215 dB

Last Answer : A. 403 dB

What is a selective fading effect? A. A fading effect caused by small changes in beam heading at the receiving station. B. A fading effect caused by phase differences between radio wave components of the same transmission, as experienced at the receiving station. C. A fading effect caused by large changes in the height of the ionosphere, as experienced at the receiving station D. A fading effect caused by time differences between the receiving and transmitting stations.

Description : What is a selective fading effect? A. A fading effect caused by small changes in beam heading at the receiving station. B. A fading effect caused by phase differences between radio wave ... station D. A fading effect caused by time differences between the receiving and transmitting stations.

Last Answer : B. A fading effect caused by phase differences between radio wave components of the same transmission, as experienced at the receiving station.

What is the major cause of selective fading? A. Small changes in the beam heading at the receiving station. B. Large changes in the height of the ionosphere, as experience at the receiving station. C. Time differences between the receiving and transmitting stations. D. Phase differences between radio wave components of the same transmission, as experienced at the receiving station.

Description : What is the major cause of selective fading? A. Small changes in the beam heading at the receiving station. B. Large changes in the height of the ionosphere, as experience at the ... Phase differences between radio wave components of the same transmission, as experienced at the receiving station.

Last Answer : D. Phase differences between radio wave components of the same transmission, as experienced at the receiving station.

Refers to an effect of selective fading. A. A fading effect caused by phase differences between radio wave components of the same transmission, as experienced at the receiving station. B. A fading effect caused by small changes in beam heading at the receiving station. C. A fading effect caused by the time differences between the receiving and transmitting stations. D. A fading effect caused by large changes in the height of the ionosphere, as experienced at the receiving station.

Description : Refers to an effect of selective fading. A. A fading effect caused by phase differences between radio wave components of the same transmission, as experienced at the receiving station. B. A fading ... caused by large changes in the height of the ionosphere, as experienced at the receiving station.

Last Answer : A. A fading effect caused by phase differences between radio wave components of the same transmission, as experienced at the receiving station.

The term 'duplex' refers to theability of the data receiving stations toecho back aconfirming messageto the sender. Infull duplex data transmission, both the sender and the receiver A. cannot talk at once B. can receive and send datasimultaneously C. can sendor receive data one ata time D. can do one way data transmission only E. None of the above

Description : The term 'duplex' refers to theability of the data receiving stations toecho back aconfirming messageto the sender. Infull duplex data transmission, both the sender and the receiver A. cannot talk at once B. can ... data one ata time D. can do one way data transmission only E. None of the above

Last Answer : can do one way data transmission only

A feeder, in a transmission system, feeds power to (a) distributors (b) generating stations (c) service mains (d) all of the above

Description : A feeder, in a transmission system, feeds power to (a) distributors (b) generating stations (c) service mains (d) all of the above

Last Answer : (a) distributors

Angles to a given pivot station observed from a number of traverse stations when plotted, the lines to the pivot station intersect at a common point (A) Angular measurements are correct and not the linear measurements (B) Linear measurements are correct and not the angular measurements (C) Angular and linear measurements are correct and not the plotting of traverse (D) Angular and linear measurements and also plotting of the traverse are correct

Description : Angles to a given pivot station observed from a number of traverse stations when plotted, the lines to the pivot station intersect at a common point (A) Angular measurements are correct and ... plotting of traverse (D) Angular and linear measurements and also plotting of the traverse are correct

Last Answer : (D) Angular and linear measurements and also plotting of the traverse are correct

While working on a plane table, the correct rule is: (A) Draw continuous lines from all instrument stations (B) Draw short rays sufficient to contain the points sought (C) Intersection should be obtained by actually drawing second rays (D) Take maximum number of sights as possible from each station to distant objects

Description : While working on a plane table, the correct rule is: (A) Draw continuous lines from all instrument stations (B) Draw short rays sufficient to contain the points sought (C) Intersection ... drawing second rays (D) Take maximum number of sights as possible from each station to distant objects

Last Answer : (B) Draw short rays sufficient to contain the points sought

Trunks are the lines that run between (A) Subscribers and exchange (B) Switching system and power plant (C) Local area network (D) Switching stations

Description : Trunks are the lines that run between (A) Subscribers and exchange (B) Switching system and power plant (C) Local area network (D) Switching stations

Last Answer : (D) Switching stations

Trunks are the lines that run between (A) Subscribers and exchange (B) switching system and power plant (C) Local area network. (D) Switching stations.

Description : Trunks are the lines that run between (A) Subscribers and exchange (B) switching system and power plant (C) Local area network. (D) Switching stations.

Last Answer : (D) Switching stations.

What consideration would you have while selecting survey stations and survey lines in a chain survey?

Description : What consideration would you have while selecting survey stations and survey lines in a chain survey?

Last Answer : Following points to be considered while selecting survey stations and survey lines 1) Main survey station should be mutually visible. 2) All triangles should be well conditioned. 3) The survey line should lie ... of the area so as to form the frame work of triangles on it to cover maximum area. 

which of the followingwas not a sub-mission under National live stock mission a.Sub-mission on livestock devlopment b.Sub-mission on fodder and feed development c.Sub-mission On Skill development,technology transfer and extension d.All are correct

Description : which of the followingwas not a sub-mission under National live stock mission a.Sub-mission on livestock devlopment b.Sub-mission on fodder and feed development c.Sub-mission On Skill development,technology transfer and extension d.All are correct

Last Answer : d.All are correct

What happens insulators when high voltage passes through transmission lines whether it breaks or lose it's insulating property?

Description : What happens insulators when high voltage passes through transmission lines whether it breaks or lose it's insulating property?

Last Answer : I think it will breaks when it crosses breakdown voltage .

Why are overhead transmission lines not insulated?

Description : Why are overhead transmission lines not insulated?

Last Answer : Insulators are useful to help separate electrical conductors when they come into physical contact. Overhead Transmission Lines Are Not Insulated: The overhead transmission line is carrying extreme high voltage and ... a whole lot of thick insulation to absorb the heat produced by such high voltage.

What type of earthing is used by transmission lines?

Description : What type of earthing is used by transmission lines?

Last Answer : Preventive  multiple  earthing  PME.

The main limitation for power handling capability of short length transmission lines and cables is

Description : The main limitation for power handling capability of short length transmission lines and cables is (A) power factor (B) stability (C) thermal effect limit (D) conductor size

Last Answer : The main limitation for power handling capability of short length transmission lines and cables is thermal effect limit

Bundled conductors are mainly used in high voltage overhead transmission lines to

Description : Bundled conductors are mainly used in high voltage overhead transmission lines to (a) Reduce line loss (c) Reduce corona (b) Reduce harmonics (d) Increase strength

Last Answer : Bundled conductors are mainly used in high voltage overhead transmission lines to Reduce corona 

Bulk power transmission over long HVDC lines is preferred because of

Description : Bulk power transmission over long HVDC lines is preferred because of

Last Answer : Bulk power transmission over long HVDC lines is preferred because of Low cost of HVDC terminal

Transmission lines are transposed to :

Description : Transmission lines are transposed to : (A) Reduce copper loss (B) Reduce skin effect (C) Prevent interference with neighbouring telephone lines (D) Prevent short-circuit between any two lines

Last Answer : a

Transmission lines connect: -

Description :  Transmission lines connect: -  a) Generating station to a switching station / step down transformer station b) Step down transformer station to service transformer banks c) Distribution transformer to consumer premises d) Service points to consumer premises

Last Answer :  Transmission lines connect: - Generating station to a switching station / step down transformer station 

Hollow conductors are used in the transmission lines to:

Description : Hollow conductors are used in the transmission lines to:  (1) Improve heat dissipation (2) Reduce corona loss (3) Reduce skin effect (4) Reduce the line inductance

Last Answer : Hollow conductors are used in the transmission lines to: Reduce corona loss.

Copper conductors are generally used for transmission lines because it _________.

Last Answer : Copper conductors are generally used for transmission lines because it has longer life and high conductivity.

How transmission lines are classified?

Last Answer : On the basis of distance from generating station to distributers

Why do transmission lines use high voltage?

Last Answer : Transmission lines use high voltage to reduce the amount of power loss over long distance. This power loss can come from large current running through the cable due to the resistance of the cable conductor. Stepping up the voltage reduces the amount of current through transmission lines.

What are the different relays that employed for protection of apparatus and transmission lines?

Description : What are the different relays that employed for protection of apparatus and transmission lines?

Last Answer : Answer: The relays that are usually employed for protection of transmission lines include • Over current relay • Directional relay • Distance relay • Under Voltage relay • Under-frequency relay • Thermal relay • Differential relay • Phase sequence relays • pilot relays

A third symbol radio emission which represent telephone transmission including sound broadcasting. A. W B. F C. C D. E

Description : A third symbol radio emission which represent telephone transmission including sound broadcasting. A. W B. F C. C D. E

Last Answer : D. E

Who did the is a series of dots and lines to represent numbers and letters using a telegraph?

Description : Who did the is a series of dots and lines to represent numbers and letters using a telegraph?

Last Answer : Need answer

Which one of the following represent the lines joining the places of equal rainfall? (1) Isohypses (2) Isohalines (3) Isobars (4) Isohyets

Description : Which one of the following represent the lines joining the places of equal rainfall? (1) Isohypses (2) Isohalines (3) Isobars (4) Isohyets

Last Answer : (4) Isohyets Explanation: An isohyet or isohyetal line (from huetos, meaning 'rain') is a line joining points of equal precipitation on a map. A map with isohyets is called an isohyetal map.

The value(s) of 'k' for which the following pair of linear equations will represent a pair of intersecting lines graphically is/are: 3x - 4y + 7 = 0 kx - 8y = 5 (a) k = 6 (b) k ≠ 6(c) any real number (d) any real number except 6

Description : The value(s) of 'k' for which the following pair of linear equations will represent a pair of intersecting lines graphically is/are: 3x - 4y + 7 = 0 kx - 8y = 5 (a) k = 6 (b) k ≠ 6(c) any real number (d) any real number except 6

Last Answer : (d) any real number except 6

The pair of equations ax+2y=7 and 3x+by=16 represent parallel lines if (a)a=b (b)3a=2b (c)ab=6 (d)2a=3b

Description : The pair of equations ax+2y=7 and 3x+by=16 represent parallel lines if (a)a=b (b)3a=2b (c)ab=6 (d)2a=3b

Last Answer : (c)ab=6

Isopiestic lines are the contours (A) Drawn to represent water table (B) Drawn to represent piezometric heads (C) Drawn to piezometric surface (D) None of these

Description : Isopiestic lines are the contours (A) Drawn to represent water table (B) Drawn to represent piezometric heads (C) Drawn to piezometric surface (D) None of these

Last Answer : Answer: Option C

The isobars drawn on a surface weather chart represent lines of equal pressure: a. At flight level b. At height of observatory c. At a determined density altitude d. Reduced to sea level

Description : The isobars drawn on a surface weather chart represent lines of equal pressure:  a. At flight level  b. At height of observatory  c. At a determined density altitude  d. Reduced to sea level

Last Answer : d. Reduced to sea level

The idea with wavelets is to represent a complicated function by A. sinus functions B. simple basic functions C. lines D. square functions

Description : The idea with wavelets is to represent a complicated function by A. sinus functions B. simple basic functions C. lines D. square functions

Last Answer : B. simple basic functions

The isobars drawn on a surface weather chart represent lines of equal pressure: a. At flight level b. At height of observatory c. At a determined density altitude d. Reduced to sea level

Description : The isobars drawn on a surface weather chart represent lines of equal pressure: a. At flight level b. At height of observatory c. At a determined density altitude d. Reduced to sea level

Last Answer : d. Reduced to sea level

A series of closely spaced contour lines represent a (a) Steep slope* (b) Gentle slope (c) Uniform slope (d) Plane surface

Description : A series of closely spaced contour lines represent a (a) Steep slope* (b) Gentle slope (c) Uniform slope (d) Plane surface

Last Answer : (a) Steep slope*

Represent generation of steam on H-S diagram. Show constant dryness fraction lines, constant temperature lines, saturated line and superheated region on the same.

Description : Represent generation of steam on H-S diagram. Show constant dryness fraction lines, constant temperature lines, saturated line and superheated region on the same.

Last Answer : Represent generation of steam on H-S diagram. Show constant dryness fraction lines, constant temperature lines, saturated line and superheated region on the same.

Which one of the following represent the lines joining the places of equal rainfall ? (1) Isohypses (2) Isohalines (3) Isobars (4) Isohyets

Description : Which one of the following represent the lines joining the places of equal rainfall ? (1) Isohypses (2) Isohalines (3) Isobars (4) Isohyets

Last Answer : Isohyets

Who responsible that proper arrangements are made for the transmission of mails of division a) Sub divisional inspector, b) Supdt of post office c) SSP d) Head Postmaster

Description : Who responsible that proper arrangements are made for the transmission of mails of division a) Sub divisional inspector, b) Supdt of post office c) SSP d) Head Postmaster

Last Answer : b) Supdt of post office

What is the main function of a Sub Foreign Post Office?: (A) To send direct bags to foreign countries (B) To enable senders/addressees to present documents etc for the dispatch or release of their international articles (C) To function as an intermediary office for closed surface transit bags (D) To expedite the transmission of international mail

Description : What is the main function of a Sub Foreign Post Office?: (A) To send direct bags to foreign countries (B) To enable senders/addressees to present documents etc for the dispatch or ... as an intermediary office for closed surface transit bags (D) To expedite the transmission of international mail

Last Answer : (B) To enable senders/addressees to present documents etc for the dispatch or release of their international articles

Suspected cases of reuse of used stamps on the article received in transmission from BO should be reported to a) The supdt of Post office b) The Head Post offices c) The sub divisional Inspector d) None of these

Description : Suspected cases of reuse of used stamps on the article received in transmission from BO should be reported to a) The supdt of Post office b) The Head Post offices c) The sub divisional Inspector d) None of these

Last Answer : c) The sub divisional Inspector

Mark the correct option a) The Inspector should maintain a register of lines and stages in respect of his sub division in form M-40 b) Entries should be made in the register in alphabetical order, and where a line traverses sub-divisions each Inspector should record it throughout its length c) It is of special importance that the register should be kept corrected up-todate in accordance with correction memos issued by the Superinendent from time to time. d) All the above

Description : Mark the correct option a) The Inspector should maintain a register of lines and stages in respect of his sub division in form M-40 b) Entries should be made in the register in alphabetical ... in accordance with correction memos issued by the Superinendent from time to time. d) All the above

Last Answer : d) All the above

In the case of contracts for mail cart lines, penalties and forfeitures for delays and other breaches of agreement, will be imposed by a) Superintendent of post office b) Sub divisional inspector c) Head of the circle d) None of these

Description : In the case of contracts for mail cart lines, penalties and forfeitures for delays and other breaches of agreement, will be imposed by a) Superintendent of post office b) Sub divisional inspector c) Head of the circle d) None of these

Last Answer : a) Superintendent of post office

Why is the physical length of a coaxial cable transmission line shorter than its electrical length?A. Skin effect is less pronounced in the coaxial cable B. RF energy moves slower along the coaxial cable C. The surge impedance is higher in the parallel feed line D. The characteristic impedance is higher in the parallel feed line

Description : Why is the physical length of a coaxial cable transmission line shorter than its electrical length? A. Skin effect is less pronounced in the coaxial cable B. RF energy moves slower along the ... higher in the parallel feed line D. The characteristic impedance is higher in the parallel feed line

Last Answer : B. RF energy moves slower along the coaxial cable

If a transmission line has a power loss of 6 dB per 100 feet, what is the power at the feed point to the antenna at the end of a 200 foot transmission line fed by a 100 watt transmitter? A. 70 watts B. 50 watts C. 25 watts D. 6 watts

Description : If a transmission line has a power loss of 6 dB per 100 feet, what is the power at the feed point to the antenna at the end of a 200 foot transmission line fed by a 100 watt transmitter? A. 70 watts B. 50 watts C. 25 watts D. 6 watts

Last Answer : D. 6 watts