Description : What are arcing grounds?
Last Answer : The presence of inductive and capacitive currents in the isolated neutral system leads to formation of arcs called as arcing grounds.
Description : Hysteresis in a direct current generator is indicated by _____________. A. arcing at the brushes B. pulsating terminal current C. heating of the armature core D. hunting and over control
Last Answer : Answer: C
Description : In the illustration, the purpose of part B is to _________. EL-0033 A. increase resistance in series with the contacts as they close to prevent arcing B. create a magnetic field in the steel ... event of an overload D. provide ventilation to the contact when the breaker is close to rated capacity
Last Answer : Answer: B
Description : Undervoltage trips are frequently installed on switchboard circuit breakers to trip ____________. A. out generators in the event of severe arcing or sparking B. out generators when there is reversal of power ... , but continues to run D. out generators when there is low voltage in the main circuit
Last Answer : Answer: D
Description : The purpose of squirrel-cage windings in a synchronous motor is to ______________. A. provide more precise balancing B. produce a higher power factor C. eliminate arcing between the stator and the frame D. provide a means for starting
Description : The purpose of amortisseur windings in a synchronous motor is to ______________. A. reduce eddy current losses B. produce a higher power factor C. provide a means for starting D. eliminate arcing between the stator and the rotor
Description : A shading coil used in an AC magnetic controller, functions to _____________. A. reduce vibration and noise in the contactor B. prevent flux buildup in the operating coil C. eliminate arcing when the contacts close D. energize the operating coil and 'pull in' the contacts
Last Answer : Answer: A
Description : Amortisseur windings are installed in a synchronous motor to _____________. A. reduce eddy current losses B. produce a higher power factor C. provide a means for starting D. eliminate arcing between the stator and the rotor
Description : A three-phase electrical system is equipped with ground detecting lamps. If one of the lamp goes dark and the other two burn normally before and after the test switch is operated, this indicates _______________. ... of the three phases D. the voltage to the dark lamp is less than that of the system
Description : In a three-phase electrical system, three ground detecting lamps are provided. If all three lamps REMAIN at half-brilliance when the ground detecting test switch is operated, ______________. A. there is a ... must be replaced C. there are no grounds present D. the light bulbs are of improper voltage
Description : In a three-phase electrical system, three ground detecting lamps are provided. One lamp goes dark and the others increase in brightness. When the test button is pushed, all lamps have equal illumination. You ... C. there are grounds on the lines with the bright lamps D. this is a normal condition
Description : When an AC or a DC motor fails to start, the FIRST step in troubleshooting should be to check the ____________. A. motor windings for obvious opens B. motor controller leads for continuity C. fuse or circuit breaker D. motor controller leads for grounds
Description : If all of the ground detection lamps burn with equal brilliance, whether the test button is depressed or released, then ___________. A. no grounds exist B. all phases are grounded C. all lamps show a ground D. all of the above
Description : In an alternating current electrical system, a low system power factor is a direct sign of _____________. A. wasted energy B. efficient operation C. a short in the exciter field windings D. an excessive number of minor system grounds
Description : Accidental grounds in a shipboard electrical system must be repaired as soon as possible as they will ____________. A. result in immediate power outages B. damage circuit breakers C. appear on the ground detection system D. damage insulation and may cause outages
Description : Multiple grounds have developed and were initialy indicated by the grounddetecting system as one ground. The FIRST step in locating the grounds is to _____________. A. examine the main bus bars ... no longer indicates any grounds C. change over generators D. check each circuit with a megohmmeter
Description : A volt-ohm-millimeter can be used to check for ____________. A. continuity B. grounds C. voltage D. all of the above
Description : If all three ground-detection lamps continue to burn at equal intensity after the test button is depressed and released, which of the listed conditions is indicated? A. No grounds exist B. All three phases are grounded C. The test switch is faulty D. The current transformers are shorted out
Description : Moisture absorbed in the windings or condensed on the surface of electrical machinery insulation ________. A. is good for long term preserving since most insulation is organic and contains some amount B. ... D. reduces the amount of current supplied or drawn by the machine so horsepower is limited
Description : Motor controllers are seldom troubled by grounds because ________________. A. cabinet heaters always keep internal components dry B. special insulation is used on wire for vital circuits C. ... on controller panels greatly reduce vibration D. contactors and relays are mounted on nonconducting panels
Description : On a switchboard, if all three ground detection lamps remain burning at half intensity when the test button is depressed, which of the listed conditions is indicated? A. No grounds exist. B. All three phases are grounded. C. The test switch is grounded. D. The current transformers are shorted.
Description : Time delayed or delayed action-type fuses are designed to _____________. A. prevent grounds in branch circuits B. prevent opens in motor circuits C. permit momentary overloads without melting D. guard lighting and electronic circuits
Description : Motor controllers are seldom troubled with grounds because _____________. A. the auxiliary contacts have a high resistance connection B. the contactors and relays are mounted on a nonconducting panel ... individual series-connected units D. there are separate switches for the motor and the control
Description : Grounds occurring in electrical machinery as a result of insulation failure may result from _____________. A. deterioration through extended use B. excessive heat C. extended periods of vibration D. all of the above
Description : Best reason for pressurizing waveguides with dry air A. To maintain propagation B. To maintain temperature of the waveguide C. To reduce the possibility of internal arcing D. To increase the speed of propagation
Last Answer : C. To reduce the possibility of internal arcing
Description : The arcing contacts in a circuit breaker are made of (a) copper tungsten alloy (b) porcelain (c) electrolytic copper (d) aluminium alloy
Last Answer : (a) copper tungsten alloy
Description : During which of the transmit or receive cycles are both the tr and atr tubes of a parallelconnected duplexer ionized (arcing)?
Last Answer : Transmit.
Description : Name the procedure used to reduce excessive arcing in a magnetron?
Last Answer : Baking in.
Description : The degree of protection by ground wire depends upon the a. Arcing angle b. Shielding angle c. Power factor d. All of above
Last Answer : The degree of protection by ground wire depends upon the a. Arcing angle b. Shielding angle c. Power factor d. All of above
Last Answer : The arcing contacts in a circuit breaker are made of copper tungsten alloy.
Description : Is the use of the unsubstantiated Steele dossier as grounds for investigating Trump personnel a scam of the FISA courts?
Last Answer : Conspiracy ! ! ! Steele dossier was done by Martians
Description : How can I make a K-Cup without a Keurig or coffee grounds?
Last Answer : You have to be patient, but it is possible. The way that a Keurig coffee maker works is as follows. 1) the machine pokes a hole in the top of the K-cup for the water to come in 2) the ... filter and pour boiling water over it to brew. Both of these are workable alternatives. Why are you a thief?
Description : Should Gorsuch's plagiarism be considered grounds for his disqualification as a Supreme Court candidate?
Last Answer : He’ll fit right in with the rest of King Trump’s troops.
Description : For those who did not like the election outcome, should they take a page from California’s history and appeal to the High Court to get the election nullified on Constitutional grounds?
Last Answer : Except that more people voted for Hillary…
Description : Is not giving the Norwegian mass murderer, Anders Breivik , a ps4 grounds to declare for cruel and unusual punishment?
Last Answer : Could you please post a link supporting this story?
Description : Running from security guards, what jurisdiction and grounds do they have?
Last Answer : I don’t know for sure, but I figure your city has some anti-tresspassing ordinances?
Description : Can a school/college (sixth form in Britain) punish you for smoking outside of school hours/grounds?
Last Answer : No not really apart from lecturing you on the evil weed. When you’re not in school it’s not their problem.
Description : Is positive stereotyping, on racial / ethnic / national grounds, also a bad thing?
Last Answer : I wouldn’t say “good” or “bad”, but as soon as I see the word “all” in a statement about a group of people, I know it’s bullshit.
Description : On what grounds did you vote? Colour or code.
Last Answer : I voted based on policies, reputation, and skill. That happened to be the traits of a candidate who happened to be black, didn’t make any difference to me.
Description : How long do coffee grounds stay fresh?
Last Answer : Usually two weeks if stored properly. You can freeze it, but once you freeze it once, you should never put it back in the freezer. Also, never store it in the fridge.
Description : What are names to some of the larger equipment used on mining grounds?
Last Answer : Could this be it?
Description : What can we do to ensure the traditional breeding grounds of salmon considering the problems of overfishing and damming of rivers that they must climb up?
Last Answer : I have no objections towards the flavour of farmed salmon, and I would purchase it or other fish with no qualms in order to alleviate the burden on wild fish farming and overfishing. I think the best ... keeping them alive is to not eat then, and to encourage the consumption of other fish or meats.
Description : All embassies everywhere, are considered "foreign soil," in the countries where they are located. So, if a woman in Tokyo gives birth on the grounds of the American (USA) Embassy, has her baby been (in fact) born in the USA?
Last Answer : Yes
Description : Is it good to mix coffee grounds into soil?
Last Answer : Yes it also helps deter slugs in your garden
Description : Name some popular fishing grounds of North America. -Geography
Last Answer : Shallow continental shelves, such as the Grand Banks, Georges Banks off New England and New Foundland Coast are popular fishing grounds.
Description : Mention the major fishing grounds in Europe. -Geography
Last Answer : The main fishing grounds are near North-West Europe. They extend from northern part of Arctic circle to Mediteranian sea. The most intensively fishing region is the North Sea and the countries include ... most famous fishing grounds of the North sea are the Dogger Bank and the Great Fisher Bank.
Description : “Cities of the 19th century also became the breeding grounds for the politics”. -SST 10th
Last Answer : (i) In 1556 when outdoor work came to a standstill, the London poor exploded in a riot, demanding relief from the terrible conditions of poverty. (ii) In 1857 once again poor came on ... (iii) In 1889 thousands of workers of London dockyard went on strike demanding to recognise dockworkers union.
Description : On the grounds of improving administrative efficiency, how Curzon justified the partition of Bengal. -SST 10th
Last Answer : Lord Curzon, who was the Viceroy of India from 1898 to 1905, became unpopular in India. The reason was that he had followed a policy against the Indians. He tried to justify the partition of Bengal by ... area of this new province was about 2,74,540 sq. km. and its population was about 31 million.
Description : On what grounds did the Cabinet Mission reject Jinnah’s demand for partition of India? -SST 10th
Last Answer : The Cabinet Mission rejected Jinnah’s demand for partition of India on the ground that partition would involve dislocation of communication network and would involve division of armed force and service personnel.
Description : On what grounds, can a member be suspended or expelled from the UNO? -SST 10th
Last Answer : A member of the United Nations, against whom enforcement action has been taken by the Security Council, can be suspended from exercising the rights and privileges of the United Nations by ... be expelled from the United Nations by the General Assembly on recommendation of the Security Council.