Gauss-Seidel iterative method can be used for solving a set of?

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asked Mar 27, 2018 by anonymous

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asked May 20, 2018 by anonymous

The Gauss seidel load flow method has the following disadvantages. Tick the incorrect statement.

The Gauss seidel load flow method has the following disadvantages. Tick the incorrect statement. A) Unreliable convergence B) Slow convergence C) Choice of slack bus affects convergence D) A good initial guess for voltages is essential for convergence

Last answer: The Gauss seidel load flow method has the following disadvantages. Tick the incorrect statement. A) Unreliable convergence B) Slow convergence C) Choice of slack bus affects convergence D) A good initial guess for voltages is essential for convergence

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477 views 1 answer

asked Apr 26, 2018 by anonymous

Compared to Gauss-Seidel method, Newton- Raphson method takes :

Compared to Gauss-Seidel method, Newton-Raphson method takes : A. less number of iterations and more time per iteration B. less number of iterations and less time per iteration C, more number of iterations and more time per iteration D. more number of iterations and less time per iteration

Last answer: Compared to Gauss-Seidel method, Newton-Raphson method takes : A. less number of iterations and more time per iteration B. less number of iterations and less time per iteration ... of iterations and more time per iteration D. more number of iterations and less time per iteration

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asked Apr 23, 2018 by anonymous

The convergence characteristic of the Newton—Raphson method for solving a load flow problem is

The convergence characteristic of the Newton—Raphson method for solving a load flow problem is (A) quadratic (B) linear (C) geometric (D) cubic

Last answer: The convergence characteristic of the Newton—Raphson method for solving a load flow problem is quadratic

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asked Mar 31, 2018 by anonymous

An instruction used to set the carry Flag in a computer can be classified as

Last answer: An instruction used to set the carry Flag in a computer can be classified as arithmetic.

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262 views 1 answer

asked Apr 12, 2018 by anonymous

Which method can be used for absolute measurement of resistance?

Which method can be used for absolute measurement of resistance? A. Ohm's law method B. Wheatstone bridge method C. Both A & B D. None of these.

Last answer: Wheatstone bridge method can be used for absolute measurement of resistance.

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313 views 1 answer

asked Apr 9, 2018 by anonymous

Two wattmeter method can be used in a three phase system excited with balanced three phase supply...

Two wattmeter method can be used in a three phase system excited with balanced three phase supply A) To measure real power and power factor in a balanced load B) To measure reactive power in a balanced load C) To measure real power in an unbalanced load D) All of the above

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asked Mar 11, 2018 by anonymous

Why do we use Gauss elimination method?

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asked May 15, 2018 by anonymous

For the speed control purpose, pole changing method can be adopted for

Last answer: For the speed control purpose, pole changing method can be adopted for Squirrel cage induction motor

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71 views 1 answer

asked May 14, 2018 by anonymous

The purpose of a governor in a DG set is

The purpose of a governer in a DG set is • To regulate the speed. • To regulate the voltage • To regulate the power • To regulate the current.

Last answer: The purpose of a governor in a DG set is To regulate the speed.

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42 views 1 answer

asked Jan 9 by anonymous

A question (sum) is given to three boys whose chances of solving it are 1/3,1/4 and 1/5 respectively. What is the probability that the question will be solved? A) 4/5 B) 3/5 C) 3/4 D) 7/5

Last answer: Answer: B)

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asked Dec 1, 2020 by anonymous

A sand sample has a fineness modulus of 1.95. Whether this sand can be used for concreting? Explain the procedure to bring the fineness modulus in required permissible limits. State its importance.

Last answer: The given sand sample has a fineness modulus 1.95, which is less than prescribed limit i.e.2.2-3.2. It indicates that sand particles are finer, which is not suitable for satisfactory ... . Well graded sand is also useful for good bonding of particles and related strength criteria of concrete.

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asked May 13, 2018 by anonymous

Measurement of power and power factor of a 3-phase system by two wattmeter method can be

Measurement of power and power factor of a 3-phase system by two wattmeter method can be obtained in case of 1. Balanced load and balanced source 2. Balanced source with 3-phase 3-wire unbalanced load 3. Unbalanced source with 3-phase 3-wire balanced load 4. Balanced source with 3-phase 4-wire unbalanced load 5. unbalanced and unbalanced source (a) 1 only (b) 2, 3 and 5 (c) 1, 2, 3, 4 and 5 (d) 1, 2, 3 and 5

Last answer: Measurement of power and power factor of a 3-phase system by two wattmeter method can be obtained in case of 1. Balanced load and balanced source 2. Balanced source with 3-phase 3-wire unbalanced load 3. Unbalanced source with 3- ... b) 2, 3 and 5 (c) 1, 2, 3, 4 and 5 (d) 1, 2, 3 and 5

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asked Jan 10 by anonymous

A large cistern can be filled by 2 pipes P & Q in 120 mins and 80 mins respectively. How many mins will it take to fill the cistern from empty state if Q is used for half the time and P & Q fil it together for the other half? A) 2hrs B) 1hr C) 3hrs D) 4hrs

Last answer: B Part filled by (P+Q) in 1 min = 1/120 + 1/80 =2+3/240 = 5/240 = 1/48 Suppose the cistern is filled in x mins then, x/2 (1/48 + 1/80) = 1 x/2(5+3/240)=1 8x/480 = 1 x=480/8 x= 60 mins or 1 hr

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asked May 13, 2018 by anonymous

Thermocouple instruments can be used for a frequency range upto

Thermocouple instruments can be used for a frequency range upto (a) 100Hz (b) 5000 Hz (c) 1 MHz (d) 50 MHz and above

Last answer: Thermocouple instruments can be used for a frequency range upto 50 MHz and above

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2.9k views 1 answer

asked Mar 21, 2018 by anonymous

A dynamometer wattmeter can be used for?

Last answer: A dynamometer wattmeter can be used for both D.C. and A.C.

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asked Mar 21, 2018 by anonymous

A moving iron instrument can be used for?

Last answer: A moving iron instrument can be used for both D.C. and A.C.

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asked Mar 20, 2018 by anonymous

A shaded pole motor can be used for?

Last answer: A shaded pole motor can be used for toys, hair dryers, circulators etc.

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asked Jun 4, 2018 by anonymous

The voltage profile of a n-bus power system can be improved by controlling the

The voltage profile of a n-bus power system can be improved by controlling the (A) load angles (B) active power flows (C) reactive power flows (D) complex power flows

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60 views 0 answers

asked May 25, 2018 by anonymous

For enhancing the power transmission in along EHV transmission line, the most preferred method is to

For enhancing the power transmission in along EHV transmission line, the most preferred method is to connect a (A) Series inductive compensator in the line (B) Shunt inductive compensator at the receiving end (C) Series capacitive compensator in the line (D) Shunt capacitive compensator at the sending end

Last answer: For enhancing the power transmission in along EHV transmission line, the most preferred method is to connect a Series capacitive compensator in the line

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175 views 1 answer

asked 2 days ago by anonymous

Which of the following can be used for checking inflation temporarily ? (1) Increase in wages (2) Decrease in money supply (3) Decrease in taxes (4) None of these

Last answer: Decrease in money supply

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asked Jun 18, 2018 by anonymous

Which of the following thyristors can be used for high frequency of operation?

Which of the following thyristors can be used for high frequency of operation? A) TRIAC B) DIAC C) SCR D) GTO

Last answer: Which of the following thyristors can be used for high frequency of operation? A) TRIAC B) DIAC C) SCR D) GTO

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asked Jun 17, 2018 by anonymous

Which of the following transducers can be used for non-contact temperature measurement?

Which of the following transducers can be used for non-contact temperature measurement? A) Resistance temperature detector B) Thermistor C) Sensistor D) Pyrometer

Last answer: Which of the following transducers can be used for non-contact temperature measurement? A) Resistance temperature detector B) Thermistor C) Sensistor D) Pyrometer

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77 views 1 answer

asked Jun 17, 2018 by anonymous

Which of the following instruments can be used for measurement of very high value resistances such as

Which of the following instruments can be used for measurement of very high value resistances such as insulation resistance in industries? A) Wheatstone bridge B) Megger C) Ohm-meter D) Resistive potentiometer

Last answer: Which of the following instruments can be used for measurement of very high value resistances such as insulation resistance in industries? A) Wheatstone bridge B) Megger C) Ohm-meter D) Resistive potentiometer

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64 views 1 answer

asked Jun 15, 2018 by anonymous

Which of the following instrument can be used for measuring speed of an aeroplane ?

Which of the following instrument can be used for measuring speed of an aeroplane ? (A) orifice plate (B) hot wire anemometer (C) rotameter (D) pitot tube

Last answer: Which of the following instrument can be used for measuring speed of an aeroplane ? (A) orifice plate (B) hot wire anemometer (C) rotameter (D) pitot tube

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asked Mar 21, 2018 by anonymous

Murray loop test can be used for location of?

Last answer: Murray loop test can be used for location of both the ground fault and the short-circuit fault.

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58 views 1 answer

asked May 26, 2018 by anonymous

Super conducting materials can be used for

Super conducting materials can be used for (a) ore refining. (b) magnetic levitation in high speed trains. (c) medical resonance imaging. (d) All of the above

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35 views 0 answers

asked Apr 11, 2018 by anonymous

Moving iron instruments can be used for measuring

Moving iron instruments can be used for measuring (1) Direct currents and voltages (2) Radio frequency currents (3) A.C currents and voltages (4) Both (a) and (c)

Last answer: moving iron instruments areused to measure A.C curents & voltages

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5.5k views 19 answers

asked Mar 29, 2018 by anonymous

Ground wave can be used for communication upto

Last answer: Ground wave can be used for communication upto 16 kHz.

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46 views 1 answer

asked Mar 21, 2018 by anonymous

An induction wattmeter can be used for?

Last answer: An induction wattmeter can be used for A.C.

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65 views 1 answer

asked Mar 20, 2018 by anonymous

Three point starter can be used for?

Last answer: Three point starter can be used for both shunt and compound motor.

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asked Mar 20, 2018 by anonymous

The under voltage relay can be used for?

Last answer: The under voltage relay can be used for generators, busbars, transformers, motors.

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asked Apr 10, 2018 by anonymous

The method of speed control used for increasing the speed of a dc shunt motor above its rated speed is

The method of speed control used for increasing the speed of a dc shunt motor above its rated speed is 1) armature resistance control 2) field control (3) armature voltage control (4) series parallel control

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asked May 25, 2020 by anonymous

factors on which NDT method can be selected.

Last answer: i) Codes or standard requirement ii) Specification of material to be tested, for example, nature of material, its size and shape iii) Type of disorders to be detected, also depend on nature ... is also depending on the equipments available for testing vi) Total cost required to test the material.

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asked May 12, 2018 by anonymous

The steady state stability of the power system can be improved by

The steady state stability of the power system can be improved by (A) using machines of high impedance (B) connecting transmission lines in series. (C) connecting lines in parallel. (D) reducing, the excitation of the machines.

Last answer: The steady state stability of the power system can be improved by connecting lines in parallel.

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168 views 1 answer

asked Apr 28, 2018 by anonymous

Precise control of reactive current flow entering the transmission and distribution systems can be minimized

Precise control of reactive current flow entering the transmission and distribution systems can be minimized by using (A) synchronous condenser (B) static VAR capacitor (C) capacitor bank (D) thyristor switched reactor in parallel with capacitor

Last answer: Precise control of reactive current flow entering the transmission and distribution systems can be minimized by using (A) synchronous condenser (B) static VAR capacitor (C) capacitor bank (D) thyristor switched reactor in parallel with capacitor

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103 views 1 answer

asked Mar 27, 2018 by anonymous

Corona loss can be reduced by the use of hollow conductors because?

Last answer: Corona loss can be reduced by the use of hollow conductors because of better ventilation in the conductor.

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245 views 1 answer

asked May 17, 2018 by anonymous

Two 3-phase, Y-connected alternators are to be paralleled to a set of common busbars. The armature has a

Two 3-phase, Y-connected alternators are to be paralleled to a set of common busbars. The armature has a per phase synchronous reactance of 1.7 Ohm and negligible armature resistance. The line voltage of the first machine is adjusted to 3300 V and that of the second machine is adjusted to 3200 V. The machine voltages are in phase at the ... are paralleled. Under this condition, the synchronizing current per phase will be (A) 16.98 A (B) 29.41 A (C) 33.96 A (D) 58.82 A

Last answer: Two 3-phase, Y-connected alternators are to be paralleled to a set of common busbars. The armature has a per phase synchronous reactance of 1.7 Ohm and negligible armature resistance. The ... instant they are paralleled. Under this condition, the synchronizing current per phase will be 16.98 A

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asked Apr 10, 2018 by anonymous

Which access method is used for obtaining a record from a cassette tape?

Which access method is used for obtaining a record from a cassette tape? (1) Direct (2) Sequential (3) Random (4) All of the above

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62 views 0 answers

asked Jun 4, 2018 by anonymous

A synchronous condenser is used at the receiving end of a transmission line for

A synchronous condenser is used at the receiving end of a transmission line for (A) supplying lagging kVA (B) voltage control (C) frequency control (D) maintaining a higher voltage than at the sending end

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63 views 0 answers

asked May 25, 2018 by anonymous

Transient stability can be improved by using governors attached to the turbines, should be

Transient stability can be improved by using governors attached to the turbines, should be (a) fast acting (b) slow acting (c) no function of governors in improving stability (d) nothing can be said

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asked Apr 28, 2018 by anonymous

Corona loss in transmission lines can be reduced by

Corona loss in transmission lines can be reduced by (A) using small diameter conductors (B) using bundled conductors (C) using less spacing between conductors (D) increasing the transmission line voltage

Last answer: Corona loss in transmission lines can be reduced by using bundled conductors

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asked Mar 27, 2018 by Egbunu Louis

What are the steps for solving super position theory?

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asked Apr 29, 2018 by anonymous

For a 500 Hz frequency excitation, a 50 km long power line will be modeled as

Last answer: For a 500 Hz frequency excitation, a 50 km long power line will be modeled as long line

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2.6k views 1 answer

asked Jan 7 by anonymous

Name and describe the method used for coating large and irregularly shaped articles for prevention of corrosion.

Last answer: Metal spraying is the method used for coating large and irregularly shaped articles for prevention of corrosion. Diagram: Process:- In this method ,coating metal sprayed on the surface of ... . The molten metal then sprayed on the surface of base metal with the help of compressed air.

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asked Dec 1, 2020 by anonymous

(i) Suggest the relevant method of water-proofing used for following construction. 1) Basement of buildings. 2) Swimming pool. 3) Water tank. (ii) Suggest the relevant method of transportation of concrete used for construction in following situation. 1) Concreting in hilly areas. 2) Concreting of high-rise building. 3) Concreting under water.

Last answer: Method of water-proofing for: 1) Basement of buildings: Waterproofing by using waterproof sealants. 2) Swimming pool: Waterproofing by spraying or grouting in cracks. 3) Water tank: Waterproofing by ... , concrete pump, slip form technique. 3) Concreting under water: Tremie pipe, grout pipe.

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asked Jul 19, 2019 by anonymous

Explain vacuum impregnation method used for Re-varnishing of insulation with neat diagram.

Last answer: Figure of process of vaccum impregnation:- Explain the process of vacuum impregnation:- The plant consists of: 1. A large air tight chamber (VIC) i.e. processing or impregnation chamber. 2 ... )curing temperature varies from 90°C to 110°C for 10-20 minutes in some cases one to two hours.

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379 views 1 answer

asked Sep 3, 2018 by anonymous

Describe the method used for concentration of sulphide ore.

Last answer: Process : In this process, the powdered sulphide ore is mixed with water & pine oil. The whole mixture is then stirred vigorously by passing compressed air. The oil forms a froth with air ... ; sink to the bottom of the tank. The floating froth is then skimmed off into settling basins.

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34 views 1 answer

asked Apr 12, 2018 by anonymous

Which method is not used for conversion of AC to DC?

Which method is not used for conversion of AC to DC? A. Motor-generator set B. Rotary converter C. Metal rectifiers D. Dynamometers

Last answer: Dynamometers method is not used for conversion of AC to DC.

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119 views 1 answer

asked Aug 6, 2020 by anonymous

For steam power plant having capacity 600 MW capacity a cooling tower is required to set up with condenser. Suggest the type of condenser and cooling tower with justification.

Last answer: For Steam power plant having Capacity 600 MW the requirement of condenser and cooling tower is as follow. 1) Condenser:- Given Capacity is medium to low capacity for this we can use Jet Condenser ... and efficiency of tower is high -Temperature of water coming out from tower can be controlled.

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asked Jul 31, 2020 by anonymous

Draw a neat labelled sketch of plate load test set up for determination of field bearing capacity.

Last answer: Figure: Plate Load Test using Reaction Truss Loading OR

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anonymous · Answer 1 · 2018-03-27T11:49:10+0000

Gauss-Seidel iterative method can be used for solving a set of linear algebraic equation only.

Gauss-Seidel iterative method can be used for solving a set of?

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