Multicore cables generally use
(a) square conductors
(b) circular conductors
(c) rectangular conductors
(d) sector-shaped conductors
(e) none of the above

1 Answer

Answer :

(d) sector-shaped conductors

Related questions

Description : Overhead lines generally use (a) copper conductors (b) all aluminium conductors (c) A.C.S.R. conductors (d) none of these

Last Answer : (c) A.C.S.R. conductors

Description : The material generally used for armour of high voltage cables is (a) aluminium (b) steel (c) brass (d) copper

Last Answer : (b) steel

Description : If variable part of annual cost on account of interest and depreciation on the capital outlay is equal to the annual cost of electrical energy wasted in the conductors, the total annual cost will be minimum and the ... (b) Ohm's law (c) Kirchhoffs law (d) Faraday's law (e) none of the above

Last Answer : (a) Kelvin's law

Description : Due to which of the following reasons the cables should not be operated too hot ? (a) The oil may loose its viscosity and it may start drawing off from higher levels (b) Expansion of the ... instability may rise due to the rapid increase of dielectric losses with temperature (e) All of the above

Last Answer : (e) All of the above

Description : The operating voltage of extra high tension cables is upto (a) 6.6 kV (b) 11 kV (c) 33 kV (d) 66 kV (e) 132 kV

Last Answer : (d) 66 kV

Description : are the conductors, which connect the consumer's terminals to the distribution (a) Distributors (b) Service mains (c) Feeders (d) None of the above

Last Answer : (b) Service mains

Description : The material commonly used for sheaths of underground cables is (a) lead (b) rubber (c) copper (d) iron

Last Answer : (a) lead

Description : The material commonly used for insulation in high voltage cables is (a) lead (b) paper (c) rubber (d) none of the above

Last Answer : (b) paper

Description : Which of the following methods is used for laying of underground cables ? (a) Direct laying (b) Draw-in-system (c) Solid system (d) All of the above

Last Answer : (d) All of the above

Description : The operating voltage of supertension cables is up to (a) 3.3 kV (b) 6.6 kV (c) 11 kV (d) 33 kV

Last Answer : (d) 33 kV

Description : The operating voltage of high voltage cables is up to (a)l.lkV (b)3.3kV (c)6.6kV (d)llkV

Last Answer : (d)llkV

Description : The square root of the ratio of line impedance and shunt admittance is called the (a) surge impedance of the line (b) conductance of the line (c) regulation of the line (d) none of the above

Last Answer : (a) surge impedance of the line

Description : Distribution lines in India generally use (a) wooden poles (b) R.C.C. poles (c) steel towers (d) none of the above

Last Answer : (b) R.C.C. poles

Description : Galvanised steel wire is generally used as (a) stay wire (b) earth wire (c) structural components (d) all of the above

Last Answer : (d) all of the above

Description : Which of the following is the demerit of a 'constant voltage transmission system' ? (a) Increase of short-circuit current of the system (b) Availability of steady voltage at all loads at ... of carrying increased power for a given conductor size in case of long-distance heavy power transmission

Last Answer : (a) Increase of short-circuit current of the system

Description : Besides a method of trial and error, which of the following methods is employed for solution of network problems in interconnected system ? (a) Circulating current method (b) Thevenin's theorem (c) Superposition of currents (d) Direct application of Kirehhoffs laws (e) All of the above

Last Answer : (e) All of the above

Description : High voltage transmission lines use (a) suspension insulators (b) pin insulators (c) both (a) and (b) (d) none of the above

Last Answer : (a) suspension insulators

Description : The minimum clearance between the ground and a 220 kV line is about (a) 4.3 m (b) 5.5 m (c) 7.0 m (d) 10.5 m

Last Answer : (c) 7.0 m

Description : In transmission lines the crossarms are made of (a) copper (b) wood (c) R.C.C. (d) steel

Last Answer : (d) steel

Description : The distributors for residential areas are (a) single phase (b) three-phase three wire (c) three-phase four wire (d) none of the above

Last Answer : (c) three-phase four wire

Description : Most of the high voltage transmission lines in India are (a) underground (b) overhead (c) either of the above (d) none of the above

Last Answer : (b) overhead

Description : The voltage of the single phase supply to residential consumers is (a) 110 V (b) 210 V (c) 230 V (d) 400 V

Last Answer : (c) 230 V

Description : A booster is a (a) series wound generator (b) shunt wound generator (c) synchronous generator (d) none of the above

Last Answer : (a) series wound generator

Description : Which of the following D.C. distribution system is the simplest and lowest in first cost ? (a) Radial system (b) Ring system (c) Inter-connected system (d) None of the above

Last Answer : (a) Radial system

Description : The phenomenon qf rise in voltage at the receiving end of the open-circuited or lightly loaded line is called the (a) Seeback effect (b) Ferranti effect (c) Raman effect (d) none of the above

Last Answer : (b) Ferranti effect

Description : 310 km line is considered as (a) a long line (b) a medium line (c) a short line (d) any of the above

Last Answer : (a) a long line

Description : Which of the following are the constants of the transmission lines ? (a) Resistance (b) Inductance (c) Capacitance (d) All of the above

Last Answer : (d) All of the above

Description : The corona is considerably affected by which of the following ? (a) Size of the conductor (b) Shape of the conductor (c) Surface condition of the conductor (d) All of the above

Last Answer : (d) All of the above

Description : The usual spans with R.C.C. poles are (a) 40—50 meters (b) 60—100 meters (c) 80—100 meters (d) 300—500 meters

Last Answer : (c) 80—100 meters

Description : Which of the following materials is not used for transmission and distribution of electrical power ? (a) Copper (b) Aluminium (c) Steel (d) Tungsten

Last Answer : (d) Tungsten

Description : The wooden poles well impregnated with creosite oil or any preservative compound have life (a) from 2 to 5 years (b) 10 to 15 years (c) 25 to 30 years (d) 60 to 70 years

Last Answer : (c) 25 to 30 years

Description : Overhead system can be designed for operation up to (a) 11 kV (b) 33 kV (c) 66 kV (d) 400 kV

Last Answer : (c) 66 kV

Description : The underground system cannot be operated above (a) 440 V (b) 11 kV (c) 33 kV (d) 66 kV

Last Answer : (d) 66 kV

Description : By which of the following systems electric power may be transmitted ? (a) Overhead system (b) Underground system (c) Both (a) and (b) (d) None of the above

Last Answer : (c) Both (a) and (b)

Description : The high voltage winding is usually which of the following type ? (a) Cylindrical winding with circular conductors (b) Cross-over winding with either circular or small rectangular conductors (c) Continuous disc type winding with rectangular conductors (d) All of the above types

Last Answer : (d) All of the above types

Description : The suitable cross-section of sewers to carry combined flow, is A. Circular B. Egg shaped C. Rectangular D. Horse shoe shaped

Last Answer : ANS: B

Description : The highest efficiency is obtained with a channel of __________ section. (A) Circular (B) Square (C) Rectangular (D) Trapezoidal

Last Answer : Answer: Option D

Description : The ratio of maximum shear stress to average shear stress is 4/3 in _______ a. circular cross-section b. rectangular cross-section c. square cross-section d. all of the above

Last Answer : a. circular cross-section

Description : Aqueducts are generally designed (A) Circular (B) Rectangular (C) Horse shoe section (D) All the above

Last Answer : (D) All the above

Description : For trunk and out-fall, the type of sewers generally used, is A. Standard egg shaped B. Circular shaped C. Horse shoe shaped D. Parabolic shaped

Last Answer : ANS: C

Description : The valve fitted closely in a recess against an opening in a pipe, is generally (A) Wedge shaped circular disc (B) Spherical disc (C) Parallelepiped disc (D) Conical shaped circular disc

Last Answer : (A) Wedge shaped circular disc

Description : What is multicore'?

Last Answer : At its simplest, multi-core is a design in which a single physical processor contains the core logic of more than one processor. The multi-core design takes several such processor "cores" ... to enable a system to run more tasks simultaneously and thereby achieve greater overall system performance.

Description : What is multicore processor? Describe in brief.

Last Answer : Multicore Processor: It is an integrated circuit in which two or more processors core have been packaged for enhanced performance, reduced power consumption and more efficient simultaneous ... Multicore processors will give the benefits to all software especially for multithreaded program.

Description : If the width of the foundation for two equal columns is restricted, the shape of the footing generally adopted, is (A) Square (B) Rectangular (C) Trapezoidal (D) Triangular

Last Answer : Answer: Option B

Description : Emulsifier protection is associated with: a) Grounding protection b) Dielectric strength protection of cables and conductors c) Lightning protection d) Fire protection

Last Answer : Ans: D

Description : In the cables, the location of fault is usually found out by comparing (a) the resistance of the conductor (b) the inductance of conductors (c) the capacitances of insulated conductors (d) all above parameters

Last Answer : (c) the capacitances of insulated conductors

Description : ACSR (Aluminium Conductor Steel Reinforced) are used as (A) over head transmission lines. (B) super conductors. (C) fuse (D) underground cables.

Last Answer : (A) over head transmission lines.

Description : A pre-cast pile generally used, is (A) Circular (B) Square (C) Octagonal (D) Square with corners chamfered

Last Answer : Answer: Option D

Description : Two infinitely long conductors carrying equal currents are shaped as shown. The short sectins are all of equal lengths. The point P is located symmetr

Last Answer : Two infinitely long conductors carrying equal currents are shaped as shown. The short sectins are all of equal lengths. ... zero B. B C. D. `sqrt(2)B`

Description : Buoys which support the cables to which vessels are attached are of (A) Cylindrical shape (B) Pear shaped (C) Spherical shape (D) All of these

Last Answer : (D) All of these