For a short line if the receiving end voltage is equal to the sending end voltage under loaded conditions: a) the sending end power factor is unity b) the receiving -end power factor is unity c) the sending-end power factor is leading d) the receiving end power factor is leading

1 Answer

Answer :

For a short line if the receiving end voltage is equal to the sending end voltage under loaded conditions: the receiving end power factor is leading

Related questions

Description : Determine the transformer tap ratios when the receiving end voltage is equal to the sending end voltage, the high voltage line operates at 220 kV and transmit 80 MW at 0.8 pf and the impedance of the line is (40+j140)ohm. Assume tstr=1.0  (A) 0.8 (B) 0.9 (C) 0.7 (D) 0.6 

Last Answer : 0.9 explanation given vs=vr convert in to phase voltage because impedence is always in phase line 220/root 3 then divided by reactive part that is 140 127.01/140=0.9 ans

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 : 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 : If sending end voltage is Vs at no-load in a transmission line then receiving end voltage is if ABCD parameters of line is given a) Vs b) Vs/A c) 0 d) Infinity

Last Answer : Ans: Vs/A

Description : The power transmitted will be maximum when (a) corona losses are minimum (b) reactance is high (c) sending end voltage is more (d) receiving end voltage is more

Last Answer : (c) sending end voltage is more

Description : The sending end and receiving end voltages of a three-phase transmission line are 10 kV/ph and 9.5 kV/ph, respectively. If the resistance drop is 150 V/ph and receiving end power factor is 0.8, the sending end power factor is (A) 0.745 lagging (B) 0.775 lagging (C) 0.8 lagging (D) 0.85 lagging

Last Answer : Vscos¢s-Vrcos¢r=IR

Description : A voltage of 1000 kV is applied to an overhead line with its receiving end open. If the surge impedance of the line is 500 ohm, then the total surge power in the line ill

Last Answer : A voltage of 1000 kV is applied to an overhead line with its receiving end open. If the surge impedance of the line is 500 ohm, then the total surge power in the line ill 2000 MW .

Description : A 60 Hz, 320 km lossless line has Bending end voltage 1.0 p.u, The receiving end voltage on no load is?

Last Answer : A 60 Hz, 320 km lossless line has Bending end voltage 1.0 p.u, The receiving end voltage on no load is 1.088 p.u.

Description : Have you ever said something to someone if they were sending and receiving texts while you were trying to have a conversation with them?

Last Answer : I tell them when they’re done we can resume our conversation and walk away. They got miffed, but didn’t do it again.

Description : What is the etiquette on sending thank you cards for receiving sympathy cards for the death of a loved one?

Last Answer : You can usually get away with none, maybe a thanks at the funeral. Most people send mass cards, and in all cases the recipients know that you know that their thoughts are with you. Am really sorry for your loss.

Description : Identify the software that helps you in sending and receiving an E_mail: (a) MS_Office (b) Internet Explorer -Technology

Last Answer : (c) MS-Outlook is preferred E-mail client which is used for sending or receiving an E-mail.

Description : E_mail is the process of sending and receiving messages ………… . -Technology

Last Answer : E-mail is the process of sending and receiving messageselectronically.

Description : ADSL gives: a) Faster downloading speeds (receiving) than uploading speeds (sending) b) Slower downloading speeds (receiving) than uploading speeds (sending) c) Same downloading speeds (receiving) as uploading speeds (sending) d) None of These

Last Answer : a) Faster downloading speeds (receiving) than uploading speeds (sending)

Description : MQTT is better than HTTP for sending and receiving data. A. True B. False

Last Answer : A. True

Description : MQTT is _________ protocol. a) Machine to Machine b) Internet of Things c) Machine to Machine and Internet of Things d) Machine things

Last Answer : c) Machine to Machine and Internet of Things

Description : MQTT is better than HTTP for sending and receiving data. A. True B. False

Last Answer : A. True 

Description : Motor controller or starter contacts may become pitted and welded together if the contacts _____________. A. open under loaded conditions B. close slowly with light pressure C. open too quickly and arc D. close quickly with proportionate pressure

Last Answer : Answer: B

Description : A uniformly-loaded D.C. distributor is fed at both ends with equal voltages. As compared to a similar distributor fed at one end only, the drop at the middle point is (a) one-fourth (b) one-third (c) one-half (d) twice (e) none of the above

Last Answer : (a) one-fourth

Description : For a fixed value of complex power flow in a transmission line having a sending and voltage V, the real power loss will be proportional to  A) V B) v2 C) 1/V2 D)1/V

Last Answer : For a fixed value of complex power flow in a transmission line having a sending and voltage V, the real power loss will be proportional to 1/V2

Description : Why are shunt reactors connected at the receiving end of long transmission line system: (1) To increase the terminal voltage (2) To compensate voltage rise caused by capacitive charging at light load (3) To improve power factor (4) None of these

Last Answer : Why are shunt reactors connected at the receiving end of long transmission line system: To compensate voltage rise caused by capacitive charging at light load

Description : When a wave propagates on a transmission line, it suffers reflection several times at (a) tapping (b) load end (c) sending end (d) sending and other end (e) all of the above

Last Answer : (d) sending and other end

Description : The purpose of a short circuit forcing module (short time trip) installed in a branch line is to provide ____________. A. high speed clearance of low impedance short circuits in the branch B. ... C. isolation of short circuits by selective tripping of branch circuit breakers D. all of the above

Last Answer : Answer: D

Description : Load regulation is a measure of a power supplies ability keep a constant output under conditions of changing A) Line voltage B) Current demand C) Temperature D) Oscillator frequency.

Last Answer : A) Line voltage

Description : square cross section b/h/h'=400/400/40mm with a reinforcement ratio of p=0.015 is loaded for action forces of axial load plus uniaxial bending.the column is to be made of C25/30 concrete & S-460 steel.check whether the column AB is short or long?

Last Answer : 10001/999900

Description : Determine the dB gain of a receiving antenna which delivers a microvolt signal to a transmission line over that of an antenna that delivers a 20 microvolt signal under identical circumstances. A. 10 dB B. 6 dB C. 3 dB D. 8 dB

Last Answer : B. 6 dB

Description : What are the causes of changes in voltage in Alternators when loaded?

Last Answer : When alternator is loaded the armature carries load current. Due to this load current the voltage drops occur in alternator. Hence terminal voltage decreases due to following voltage drops: 1. Voltage ... the leakage reactance of the winding, Xl 3· Voltage drop due to the armature reactance, Xa

Description : In a certain loaded transformer, the secondary voltage is one-fourth the primary voltage. The secondary current is? A.one-fourth the primary current B.four times the primary current C.equal to the primary current D.one-fourth the primary current and equal to the primary current

Last Answer : In a certain loaded transformer, the secondary voltage is one-fourth the primary voltage. The secondary current is? A.one-fourth the primary current B.four times the primary current C.equal to the primary current D.one-fourth the primary current and equal to the primary current

Description : The reflection coefficient of a short-circuited line for voltage is: A) -1 B) +1 C) 0.5 D) zero

Last Answer : The reflection coefficient of a short-circuited line for voltage is: -1

Description : It has been suggested that enterocyte-specific fuels be utilized for all patients receiving parenteral nutrition. Theoretically, the benefits of such fuels include: A. Glutamine increases ... parenteral nutrition for patients with chemotherapy toxicity or radiation enteritis is without hazards.

Last Answer : Answer: NONE IS ENTIRELY TRUE DISCUSSION: The use of enterocyte-specific fuels is part of a new and potentially exciting phase of nutritional pharmacology in parenteral nutrition; ... the maintenance of colonocyte-specific nutrition and, in the case of butyrate, ileal enterocyte nutrition

Description : In a mid point loaded fixed beam, the end number of moments created are a.2 b.3 c.4 d.1

Last Answer : a.2

Description : We planted tomatoes in our small garden. They are loaded and are the best tomatoes we have ever had; however, there are some small holes near the stem end of the tomato. When we cut the tomato open, there is a small worm inside. What is it and what can we do?

Last Answer : A. Your fruit has been invaded by the tomato pinworm. They usually do not damage all fruit and can be controlled only by a preventive insecticide spray every 7 to 10 days. When the damage is evident, it is too late to do anything about it.

Description : An autotransformer is equipped with a 50% tap, a 65% tap, and an 80% tap. Which of the following statements is true concerning a load connected to the 50% tap? A. The load is ... is receiving maximum voltage and minimum current. D. The load is receiving maximum voltage and maximum current.

Last Answer : Answer: B

Description : If coil 'R1-R2' on the transmitter in figure 'A' shown in the illustration is turned 30 degrees clockwise, corresponding coil 'R1-R2' on the receiver should ____________. EL-0092 A. make coils 'S1 ... a higher voltage depending on the turns ratio D. align itself to the same position if free to move

Last Answer : Answer: D

Description : Which of the following statements are true about eccentrically loaded circular base? a) All bolts are symmetrically spaced with equal angle on either side of vertical b) Bolts are not preloaded c) Bearing is rigid d) Dowel pins are used to relieve stresses

Last Answer : a) All bolts are symmetrically spaced with equal angle on either side of vertical

Description : Pick up the correct statement from the following:  (A) In a loaded beam, the moment at which the first yield occurs is called yield moment (B) In a loaded beam, the moment at which the ... beam, the neutral axis divides the section in two sections of  equal area  (D) All the above 

Last Answer : (D) All the above 

Description : The maximum harbour depth below lowest low water is generally equal to (i) Loaded draft +1.2 m when bottom is rock (ii) Loaded draft +1.8 m when bottom is soft (iii) Loaded draft +1.2 m when bottom is ... ) and (iii) are correct (C) (ii) and (iv) are correct (D) (iii) and (iv) are correct

Last Answer : (D) (iii) and (iv) are correct

Description : A spring of stiffness 100 N/mm used in a spring-loaded safety valve of diameter 20 mm on a boiler with the pressure inside the boiler equal to 1 MPa should be initially compressed by a. 5mm b. 3.14 mm c. 2mm d. 6.28 mm

Last Answer : b. 3.14 mm

Description : Why is it a good practice to have the frequency of the incoming alternator adjusted slightly higher than that of the loaded alternator when paralleling two alternators? A. This allows the oncoming machine to ... line. C. The reverse power relay is prevented from activating. D. All of the above.

Last Answer : Answer: D

Description : If a three-phase induction motor malfunctions and drops to a single-phase (one supply line open) ____________. A. the motor will continue to run if it is not heavily loaded B. more torque will be ... be able to be restarted D. the motor will immediately stop and can only be restarted at no load

Last Answer : Answer: A

Description : A 100 km long transmission line is loaded at 110 kV.if the loss of line is 5 MW and the load is 150 MVA, the resistance of the line is?

Last Answer : P = I^2  *  R 5*10^6  = [(150*10^6) / (110*10^3)  *  R R = 2.7 ohm/phase

Description : Do you think that being on the receiving end of discrimination and oppression makes you less likely to oppress others?

Last Answer : That’s a tough question. It goes both ways. Some people are more likely to become oppressive of others (especially their oppressors), while others are equally likely to forgive their oppressors and live a joyful life with the creator.

Description : What is the funniest thing. that was on the receiving end of your bad temper?

Last Answer : The only thing I don’t take my bad temper out on is my dogs!!!

Description : Suppose transmission rate of a channel is 32 kbps. If there are ‘8’ routes from source to destination and each packet p contains 8000 bits. Total end to end delay in sending packet P is _____. a. 2 sec b. 3 sec c. 4 sec d. 1 sec

Last Answer : a. 2 sec

Description : Pick up the correct statement from the following: (A) Isolated footing is provided under column to transfer the load safely to soil bed (B) Column footings may have steps or projections in the ... ) Heavily loaded column base must be provided steel reinforcement in both directions (D) All the above

Last Answer : Option D

Description : Suggest the energy conservation techniques in following cases : (i) Motor is running with 70% loaded condition. (ii) Motor is continuously loaded at 50%. (iii) Motor runs with 30% loaded condition but sometimes rises to 50% loading condition. (iv) Motor runs continuously under no-load condition.

Last Answer : Following are the suggestion the energy conservation techniques in following cases :  (i) Motor is running with 70% loaded condition: Use APFC or IPFC for better power factor improvement. Use ... If possible use low capacity motor for above condition. If possible switch off the motor.

Description : Consider the following statements : If a high Q parallel resonant circuit is loaded with a resistance  1. The circuit impedance reduces.  2. The resonant frequency remains the same.  3. The bandwidth reduces.  Which of the above statements is/are correct ?

Last Answer : 1

Description : The line voltage EL in a star connection is equal to.... (Ep = phase voltage)

Last Answer : The line voltage EL in a star connection is equal to √3 .Ep (Ep = phase voltage)

Description : Capacity (in tons/hr) of jaw/gyratory crusher is equal to (where, L = length of the receiving opening, cm S = greater width of the discharge opening, cm). (A) 0.01 L.S (B) 0.087 L.S (C) L.S (D) L.S/0.087

Last Answer : (B) 0.087 L.S

Description : Gibberellic acid induces flowering (a) in short day plants under long day conditions (b) in day-neutral plants under dark conditions (c) in some gymnospermic plants only (d) in long day plants under short day conditions

Last Answer : (d) in long day plants under short day conditions.

Description : Pick up the correct statement from the following: (A) The property of a soil that enables it to become stiff in a relatively short time on standing is called thixotropy (B) The ratio ... the undisturbed shear strength and remoulded shear strength is known remoulding loss (D) All the above

Last Answer : (D) All the above