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The load-flow solution is always assured in case of:
asked
Jun 4, 2018
by
anonymous
The load-flow solution is always assured in case of: A) Newton-Raphson method B) Gauss-Seidel method C) Fast Decoupled method D) None of these methods guarantee
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Oct 21, 2020
by
anonymous
D
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Apr 5, 2018
by
anonymous
In the solution of load flow equation, Newton Raphson (NR) method is superior to the GaussSeidal ...
In the solution of load flow equation, Newton Raphson (NR) method is superior to the GaussSeidal (GS) Method, because the: (A) Convergence characteristic of the NR methods are not affected by selection of slack bus (B) Number of iterations required in the NR method is not independent of the size of the system (C) Time ... the NR method is less when compared to the GS method (D) Number of iteration required in the NR method is more than compared to that in the GS method
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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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asked
May 25, 2018
by
anonymous
In case of load flow analysis one of the system buses is taken as swing bus
In case of load flow analysis one of the system buses is taken as swing bus (a) as reference bus (b) to compensate the system losses (c) both (a) and (b) (d) to reduce the system losses
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Mar 25, 2018
by
anonymous
In the case of an unsymmetrical alternating current the average value must always be taken over?
In the case of an unsymmetrical alternating current the average value must always be taken over?
Last answer:
In the case of an unsymmetrical alternating current the average value must always be taken over the whole cycle.
unsymmetrical
alternating
current
average
value
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asked
Apr 12, 2018
by
anonymous
Maximum current will flow through an electrical circuit in case of___________.
Maximum current will flow through an electrical circuit in case of___________. A. Ohm’s Law B. open circuit C. parallel circuit D. Short circuit
Last answer:
Maximum current will flow through an electrical circuit in case of Short circuit.
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asked
Apr 11, 2018
by
anonymous
In case of a power transformer, the no load current in terms of rated current is
In case of a power transformer, the no load current in terms of rated current is (1) 10-20% (2) 15-30% (3) 2-6% (4) 30-50%
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Mar 20, 2018
by
anonymous
The ratio of starting torque to full-load torque is least in case of?
Last answer:
The ratio of starting torque to full-load torque is least in case of shunt motors.
ratio
starting
torque
full-load
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asked
Mar 20, 2018
by
anonymous
In case of a reluctance motor, when the load is increased so that it cannot maintain synchronous speed the motor will?
Last answer:
In case of a reluctance motor, when the load is increased so that it cannot maintain synchronous speed the motor will run as induction motor.
reluctance
motor
synchronous
speed
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asked
Jun 4, 2018
by
anonymous
In the load flow analysis, a Jacobian is a matrix of size n × n with
In the load flow analysis, a Jacobian is a matrix of size n × n with (A) constant elements (B) upper triangular constant elements (C) first partial derivative elements (D) second partial derivative elements
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asked
Mar 28, 2018
by
anonymous
In the case of power measurement by two wattmeter method in a balanced 3Φ system with a pure inductive load
Last answer:
In the case of power measurement by two wattmeter method in a balanced 3Φ system with a pure inductive load both the Wattmeter will indicate the same but of opposite sign.
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asked
Apr 23, 2018
by
anonymous
When a source is delivering maximum power to a load, the efficiency of the circuit is always
When a source is delivering maximum power to a load, the efficiency of the circuit is always (a) 50% (b) 75% (c) 100% (d) Depends on the circuit parameters
Last answer:
When a source is delivering maximum power to a load, the efficiency of the circuit is always 50%
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asked
May 20, 2018
by
anonymous
If the reference bus is changed in two load flow runs with same system data and power obtained for
If the reference bus is changed in two load flow runs with same system data and power obtained for reference bus taken as specified P and Q in the latter run, the system losses A) Will be unchanged but complex bus voltages will change B) Will change but complex bus voltage remain unchanged C) As well as complex bus voltage will changed D) As well as complex bus voltage will be unchanged
Last answer:
If the reference bus is changed in two load flow runs with same system data and power obtained for reference bus taken as specified P and Q in the latter run, the system losses Will be unchanged but complex bus voltages will change
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asked
Mar 27, 2018
by
anonymous
In load flow analysis, the load connected at a bus is represented as?
In load flow analysis, the load connected at a bus is represented as?
Last answer:
constant real and reactive powers drawn from bus
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2
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asked
Apr 11, 2018
by
anonymous
The welding load is always
The welding load is always (1) Continuous but varying (2) Continuous and constant (3) Intermittent (4) None of the above
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asked
May 8, 2018
by
anonymous
In load flow Study, a PV bus is treated as a PQ bus when
In load flow Study, a PV bus is treated as a PQ bus when
Last answer:
Voltage at the bus becomes high
load
flow
study
pv
pq
bus
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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
May 25, 2018
by
anonymous
Load flow study of a power system is mainly carried out for
Load flow study of a power system is mainly carried out for (a) fault calculations (b) stability studies (c) system planning and operation (d) load frequency control
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asked
Jan 10
by
anonymous
3 faucet A,B,C can fill a cistern from empty to full in 45mins, 35mins, and 25 mins respectively. When the cistern is empty all the 3 faucets are opened. A,B,c discharge chemical solutions A,B,C respectively. What is the proportion of solution C in the liquid in the tank after 5 mins? A) 63/143 B) 72/151 c) 67/173 D) 81/167
3 faucet A,B,C can fill a cistern from empty to full in 45mins, 35mins, and 25 mins respectively. When the cistern is empty all the 3 faucets are opened. A,B,c discharge chemical solutions A,B,C respectively. What is the proportion of solution C in the liquid in the tank after 5 mins? A) 63/143 B) 72/151 c) 67/173 D) 81/167
Last answer:
A Part filled by (A+B+C) in 5 mins = 5(1/45 +1/35 + 1/25) = 5 (35+45+63/1575) = 143/315 Part filled by c in 5 mins = 5/25 = 1/5 Required ratio = 1/5 * 315/143 =63/143.
pipes-and-cistern
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asked
Aug 1, 2020
by
anonymous
Shown in the figure is a solved puzzle with a unique solution (the red line) from an old newspaper. Over the course of time, a few printed lines from the puzzle have faded. Identify the original puzzle from the options.
Last answer:
B
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1
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asked
Mar 11, 2018
by
anonymous
What is the bisection method?
What is the bisection method?
bisection
method
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75
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0
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asked
May 1, 2018
by
anonymous
Load flow studies involve solving simultaneous
Load flow studies involve solving simultaneous (1) linear algebraic equations. (3) linear differential equations. (2) non-linear algebraic equations. (4) non-linear differential equations.
Last answer:
Load flow studies involve solving simultaneous non-linear algebraic equations.
load
flow
studies
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1
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asked
22 hours
ago
by
anonymous
An egg sinks in soft water but floats in a concentrated solution of salt because (1) egg absorbs salt from the solution and expands (2) albumin dissolves in salt solution and egg becomes lighter (3) the density of salt solution exceeds the density of eggs (4) water has high surface tension
An egg sinks in soft water but floats in a concentrated solution of salt because (1) egg absorbs salt from the solution and expands (2) albumin dissolves in salt solution and egg becomes lighter (3) the density of salt solution exceeds the density of eggs (4) water has high surface tension
Last answer:
the density of salt solution exceeds the density of eggs
physics
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asked
Jan 11
by
anonymous
Two vessels contains equal quantity of solution contains milk and water in the ratio of 7:2 and 4:5 respectively. Now the solutions are mixed with each other then find the ratio of milk and water in the final solution? A) 11:7 B) 11:6 C) 11:5 D) 11:9 E) None of these
Two vessels contains equal quantity of solution contains milk and water in the ratio of 7:2 and 4:5 respectively. Now the solutions are mixed with each other then find the ratio of milk and water in the final solution? A) 11:7 B) 11:6 C) 11:5 D) 11:9 E) None of these
Last answer:
Answer: A milk = 7/9 and water = 2/9 – in 1st vessel milk = 4/9 and water = 5/9 – in 2nd vessel (7/9 + 4/9)/ (2/9 + 5/9) = 11:7
ratio-and-proportion
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1
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asked
May 25, 2018
by
anonymous
For the use of Newton-Raphson method, the non-linear algebraic equations are made linear with the help of
For the use of Newton-Raphson method, the non-linear algebraic equations are made linear with the help of (a) By decoupling the equations (b) Taylor series expansion (c) Exponential distribution (d) Nothing can be said
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0
answers
asked
Mar 11, 2018
by
anonymous
What is a Gauss Jordan elimination?
What is a Gauss Jordan elimination?
gauss
jordan
elimination
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0
answers
asked
Mar 11, 2018
by
anonymous
What is Newton Raphson Method example?
What is Newton Raphson Method example?
newton
raphson
method
example
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0
answers
asked
23 hours
ago
by
anonymous
We always see the same face of the moon, because (1) it is smaller than the earth (2) it revolves on its axis in a direction opposite to that of the earth (3) it takes equal time for revolution around the earth and rotation on its own axis (4) it rotates at the same speed as the earth around the sun
We always see the same face of the moon, because (1) it is smaller than the earth (2) it revolves on its axis in a direction opposite to that of the earth (3) it takes equal time for revolution around the earth and rotation on its own axis (4) it rotates at the same speed as the earth around the sun
Last answer:
it takes equal time for revolution around the earth and rotation on its own axis
physics
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4 days
ago
by
anonymous
Japan is called the ‘Land of the rising sun’ because (1) Sun rises there as soon as it sets (2) Sun always remains in the eastern part of the sky throughout the day in Japan (3) Japan being the Eastern most country in the world, it has the earliest sunrise (4) The rays of the sun get reflected from the waters of the sea and make the sunrise beautiful in Japan
Japan is called the ‘Land of the rising sun’ because (1) Sun rises there as soon as it sets (2) Sun always remains in the eastern part of the sky throughout the day in Japan (3) Japan being the Eastern most country in the world, it has the earliest sunrise (4) The rays of the sun get reflected from the waters of the sea and make the sunrise beautiful in Japan
Last answer:
Japan being the Eastern most country in the world, it has the earliest sunrise
world-geography
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1
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asked
Jan 9
by
anonymous
Which of the following statement is false for motion with uniform velocity (a) The motion is along a straight line path. (b) The motion is always in the same direction © Magnitude of displacement < distance covered (d) Average velocity is equal to the instantaneous velocity.
Which of the following statement is false for motion with uniform velocity (a) The motion is along a straight line path. (b) The motion is always in the same direction © Magnitude of displacement < distance covered (d) Average velocity is equal to the instantaneous velocity.
uniform
motion
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answers
asked
Apr 10, 2018
by
anonymous
The rating of fuse wire is always expressed in
The rating of fuse wire is always expressed in (a) volts (b) amperes (c) ampere-volt (d) ampere-hours
Last answer:
The rating of fuse wire is always expressed in Amperes
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217
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1
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asked
Mar 20, 2018
by
anonymous
In lap winding, the number of brushes is always?
Last answer:
In lap winding, the number of brushes is always same as the number of poles.
lap
winding
number
brushes
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275
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1
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asked
May 15, 2018
by
anonymous
In an electroplating solution anions are
In an electroplating solution anions are
Last answer:
In an electroplating solution anions are Negatively charged
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1
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asked
Mar 11, 2018
by
anonymous
Why do we use Gauss elimination method?
Why do we use Gauss elimination method?
use
gauss
elimination
method
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82
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0
answers
asked
Mar 11, 2018
by
anonymous
How do you do Gaussian elimination on a calculator?
How do you do Gaussian elimination on a calculator?
gaussian
elimination
calculator
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42
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0
answers
asked
2 days
ago
by
anonymous
Evaluating all the options to find out most suitable solution to business problems is inter-displinary activities. It is called (1) Professional research (2) Management research (3) Operational research (4) Commercial research
Evaluating all the options to find out most suitable solution to business problems is inter-displinary activities. It is called (1) Professional research (2) Management research (3) Operational research (4) Commercial research
Last answer:
Operational research
economics
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1
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asked
Mar 20, 2018
by
anonymous
The arc voltage produced in A.C. circuit breaker is always?
Last answer:
The arc voltage produced in A.C. circuit breaker is always in phase with the arc current.
arc
voltage
circuit
breaker
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173
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1
answer
asked
Jan 5
by
anonymous
Explain the properties of solution that influences evaporation.
Explain the properties of solution that influences evaporation.
Last answer:
Properties of evaporating liquid 1. Concentration: As the concentration increases, the solution becomes more and more individualistic. The viscosity and density increase with solid content. The boiling point of ... is a problem, special materials such as copper, nickel, stainless steel may be used.
heat
transfer
operation
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4
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1
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asked
Jul 26, 2019
by
anonymous
Linear Algebra Problem the solution to the system of equations
Linear Algebra Problem the solution to the system of equations
Last answer:
Linear Algebra Problem the solution to the system of equations https://youtu.be/y_FlupirxZM
linear
algebra
problem
solution
system
equations
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1
answer
asked
Sep 3, 2018
by
anonymous
Why the blue colour of CuSO4 turns colourless during electrolysis of CuSO4 solution by platinum electrode.
Why the blue colour of CuSO4 turns colourless during electrolysis of CuSO4 solution by platinum electrode.
Last answer:
The platinum electrodes are inert. Hence does not dissolve into the solution. The Cu++ ions (blue) present in the solution are discharged on the surface of cathode & OH - are ... a result of this electrolysis, blue coloured CuSO4 solution is slowly converted into colorless H2SO4 solution.
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asked
Jan 9
by
anonymous
In how many different ways can the letters of the word "ZYMOGEN" be arranged in such a way that the vowels always come together? a) 1440 b) 1720 c) 2360 d) 2240
In how many different ways can the letters of the word "ZYMOGEN" be arranged in such a way that the vowels always come together? a) 1440 b) 1720 c) 2360 d) 2240
Last answer:
Answer: A) The arrangement is made in such a way that the vowels always come together. i.e., "ZYMGN(OE)". Considering vowels as one letter, 6 different letters can be arranged in 6! ways; i.e., 6! = 720 ... in 2! ways; i.e.,2! = 2 ways Therefore, required number of ways = 720 x 2 = 1440 ways.
permutation
combination
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asked
Jan 9
by
anonymous
In how many different ways can the letters of the word 'VINTAGE' be arranged such that the vowels always come together? A) 720 B) 1440 C) 632 D) 364 E) 546
In how many different ways can the letters of the word 'VINTAGE' be arranged such that the vowels always come together? A) 720 B) 1440 C) 632 D) 364 E) 546
Last answer:
Answer: A) It has 3 vowels (IAE) and these 3 vowels should always come together. Hence these 3 vowels can be grouped and considered as a single letter. That is, VNTG(IAE). Hence we can assume total ... ways to arrange these vowels among themselves 3! = 3 2 1=6 Total number of ways 120 6=720
permutation
combination
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1
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asked
Jan 9
by
anonymous
In how many different ways can the letters of the word 'SPORADIC' be arranged so that the vowels always come together? A) 120 2 B) 1720 C) 4320 D) 2160 E) 2400
In how many different ways can the letters of the word 'SPORADIC' be arranged so that the vowels always come together? A) 120 2 B) 1720 C) 4320 D) 2160 E) 2400
Last answer:
Answer: C) The word 'SPORADIC' contains 8 different letters. When the vowels OAI are always together, they can be supposed to form one letter. Then, we have to arrange the letters SPRDC (OAI). Now, 6 ... be arranged among themselves in 3! = 6 ways. Required number of ways = (720 x 6) = 4320.
permutation
combination
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asked
Jan 9
by
anonymous
In how many different ways can the letters of the word 'POTENCY' be arranged in such a way that the vowels always come together? A) 1360 B) 2480 C) 3720 D) 5040 E) 1440
In how many different ways can the letters of the word 'POTENCY' be arranged in such a way that the vowels always come together? A) 1360 B) 2480 C) 3720 D) 5040 E) 1440
Last answer:
Answer: E) The word 'POTENCY' has 7 different letters. When the vowels EO are always together, they can be supposed to form one letter. Then, we have to arrange the letters PTNCY (EO). Now, 6 (5 ... be arranged among themselves in 2! = 2 ways. Required number of ways = (720 x2) = 1440.
permutation
combination
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Jan 9
by
anonymous
In how many different ways can the letters of the word 'ABOMINABLES' be arranged so that the vowels always come together? A) 181045 B) 201440 C) 12880 D) 504020 E) 151200
In how many different ways can the letters of the word 'ABOMINABLES' be arranged so that the vowels always come together? A) 181045 B) 201440 C) 12880 D) 504020 E) 151200
Last answer:
Answer: E) In the word 'ABOMINABLES', we treat the vowels AOIAE as one letter. Thus, we have BMNBLS (AOIAE). This has 7 (6 + 1) letters of which B occurs 2 times and the rest are different. Number of ways arranging these letters = 7! / 2! = (7×6×5×4×3×2×1) / (2×1) = 2520
permutation
combination
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asked
19 hours
ago
by
anonymous
Which conservation principle is applicable in the case of the motion of a rocket? (1) Conservation of mass (2) Conservation of charge (3) Conservation of momentum (4) Conservation of energy
Which conservation principle is applicable in the case of the motion of a rocket? (1) Conservation of mass (2) Conservation of charge (3) Conservation of momentum (4) Conservation of energy
Last answer:
Conservation of momentum
physics
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asked
3 days
ago
by
anonymous
In the case of an inferior good, the income elasticity of demand is : (1) Zero (2) Negative (3) Infinite (4) Positive
In the case of an inferior good, the income elasticity of demand is : (1) Zero (2) Negative (3) Infinite (4) Positive
Last answer:
Negative
economics
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asked
3 days
ago
by
anonymous
Consumer’s surplus is the highest in the case of: (1) durable goods (2) luxuries (3) comforts (4) necessities
Consumer’s surplus is the highest in the case of: (1) durable goods (2) luxuries (3) comforts (4) necessities
Last answer:
necessities
economics
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asked
Jun 18, 2018
by
anonymous
What is the value of susceptibility in case of vacuum?
What is the value of susceptibility in case of vacuum? A) 1 B) 0.5 C) ∞ D) 0
Last answer:
What is the value of susceptibility in case of vacuum? A) 1 B) 0.5 C) ∞ D) 0
susceptibility
vacuum
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asked
Jun 17, 2018
by
anonymous
Which of the following statements is not valid in case of conductors in electrostatic fields?
Which of the following statements is not valid in case of conductors in electrostatic fields? A) The static electric field intensity inside a conductor is zero B) The static electric field intensity at the surface of a conductor is everywhere directed normal to the surface C) The conductor surface is an equivalent potential surface D) None of the above
Last answer:
Which of the following statements is not valid in case of conductors in electrostatic fields? A) The static electric field intensity inside a conductor is zero B) The static electric field intensity at ... the surface C) The conductor surface is an equivalent potential surface D) None of the above
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asked
Jun 4, 2018
by
anonymous
In case of semi-conductors, the ratio of conduction current to displacement current is:
In case of semi-conductors, the ratio of conduction current to displacement current is: A) more than 200 and less than 1000 B) less than 100 but greater than 1/100 C) less than 1/100 D) more than 1000
Last answer:
In case of semi-conductors, the ratio of conduction current to displacement current is: less than 100 but greater than 1/100
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