What are the terms used to describe an open or closed telegraph circuit?

What are the terms used to describe an open or closed  telegraph circuit?
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The alarm system for an engine order telegraph uses small selsyn motors attached to the indicators. The alarm sounds when the rotors are _____________. A. in synchronous position, no current is flowing, and the relays are open B. in synchronous position, no current is flowing, and the relays are closed C. not synchronized, current is flowing, and the relays are open D. not synchronized, current is flowing, and the relays are closed

Description : The alarm system for an engine order telegraph uses small selsyn motors attached to the indicators. The alarm sounds when the rotors are _____________. A. in synchronous position, no current is flowing, ... and the relays are open D. not synchronized, current is flowing, and the relays are closed

Last Answer : Answer: D

The diagrams shown in the illustration represent a/an _______________. EL-0093 A. engine order telegraph circuit B. rudder angle indicator arrangement C. engine speed tachometer with repeaters D. sound powered telephone system

Description : The diagrams shown in the illustration represent a/an _______________. EL-0093 A. engine order telegraph circuit B. rudder angle indicator arrangement C. engine speed tachometer with repeaters D. sound powered telephone system

Last Answer : Answer: D

Example of circuit switching and S&F (Stored and Forward) switching is (A) Telephone and Post of Telegraph (B) Video Signal Post or Telegraph (C) Digital Signal Post or Telegraph (D) None of above

Description : Example of circuit switching and S&F (Stored and Forward) switching is (A) Telephone and Post of Telegraph (B) Video Signal Post or Telegraph (C) Digital Signal Post or Telegraph (D) None of above

Last Answer : (A) Telephone and Post of Telegraph

What basic requirement of a closed-loop system (not present in open-loops) enables present load position to be sensed?

Description : What basic requirement of a closed-loop system (not present in open-loops) enables present load position to be sensed?

Last Answer : Feedback.

How do closed-loop capstan drive tape transports overcome the disadvantages of the open-loop drive design?

Description : How do closed-loop capstan drive tape transports overcome the disadvantages of the open-loop drive design?

Last Answer : Closed loop capstan drive transports use more than one capstan to clamp the tape in the area around the magnetic head.

There are two types of tape transport configurations, open loop capstan drive and closed-loop capstan drive. What are two major disadvantages of open-loop capstan drive tape transports?

Description : There are two types of tape transport configurations, open loop capstan drive and closed-loop capstan drive. What are two major disadvantages of open-loop capstan drive tape transports?

Last Answer : a. Only operates in one direction. b. The tape tension and head-to-tape contact can vary.

Explain The Following Terms: Isolated System, Open System And Closed System And Give Example Where Ever Possible.?

Description : Explain The Following Terms: Isolated System, Open System And Closed System And Give Example Where Ever Possible.?

Last Answer : 1. Isolated system: A system that can neither exchange matter nor heat with the surrounding is known as an isolated system. For example: Water placed in a vessel that is closed as well as insulated. ... is said to be a closed system. For example: A reaction taking place in a closed metallic vessel.

What terms are often used to describe basic half-wave antennas?

Description : What terms are often used to describe basic half-wave antennas?

Last Answer : Dipole, doublet and Hertz.

In the circuit shown, keys `K_1` and `K_2` both are closed the ammeter reads `I_0`. But when `K_1`is open and `K_2` is closed, the ammeter reads `I_0/

Description : In the circuit shown, keys `K_1` and `K_2` both are closed the ammeter reads `I_0`. But when `K_1`is open and `K_2` is closed, the ammeter reads `I_0/

Last Answer : In the circuit shown, keys `K_1` and `K_2` both are closed the ammeter reads `I_0`. But when `K_1`is open and ... A. 100,50 B. 50100 C. 0,100 D. 0,50

In the lighting distribution circuit shown in the illustration, if all switches are closed and fuse 'F2' were to open, all lights on branches ____________. EL-0013 A. '1', '2', and '3' would go out B. '1' and '3' would would burn dimly, while branch '2' would burn normally C. '1', '2', and '3' would burn dimly D. '1' and '3' would go out, while branch '2' would remain lit

Description : In the lighting distribution circuit shown in the illustration, if all switches are closed and fuse 'F2' were to open, all lights on branches ____________. EL-0013 A. '1', '2', and '3' would go out B. '1' ... and '3' would burn dimly D. '1' and '3' would go out, while branch '2' would remain lit

Last Answer : Answer: D

If a single-phase induction motor fails to start, the problem may be _____________. A. an open in the main winding B. a shorted shunt field C. a closed centrifugal switch D. low circuit frequency

Description : If a single-phase induction motor fails to start, the problem may be _____________. A. an open in the main winding B. a shorted shunt field C. a closed centrifugal switch D. low circuit frequency

Last Answer : Answer: A

If a single-phase induction motor fails to start, the problem may be _____________. A. an open in the run winding B. a shorted shunt field C. a closed centrifugal switch D. low circuit frequency

Description : If a single-phase induction motor fails to start, the problem may be _____________. A. an open in the run winding B. a shorted shunt field C. a closed centrifugal switch D. low circuit frequency

Last Answer : Answer: A

In order to prevent the winch shown in the illustration from turning while troubleshooting the controller circuit, _________________. EL-0102 A. set the dynamic brake by clamping contact 'DB' closed B. set the mechanical brake by the jackscrew provided C. disconnect the brake solenoid at 'B1' and 'B2' D. open the test link preventing current flow to the armature

Description : In order to prevent the winch shown in the illustration from turning while troubleshooting the controller circuit, _________________. EL-0102 A. set the dynamic brake by clamping contact 'DB' closed B. set the ... at 'B1' and 'B2' D. open the test link preventing current flow to the armature

Last Answer : Answer: D

If a circuit breaker that utilizes built-in, current limiting fuses (CLF's) cannot be closed, the problem may be traced to __________. A. a blown CLF plunger holding the trip bar in the open position B. a missing CLF C. a misaligned limiter housing assembly D. all of the above

Description : If a circuit breaker that utilizes built-in, current limiting fuses (CLF's) cannot be closed, the problem may be traced to __________. A. a blown CLF plunger holding the trip bar in the open position B. a missing CLF C. a misaligned limiter housing assembly D. all of the above

Last Answer : Answer: D

As shown in the illustration, 'H1' and 'H2' are ___________. EL-0058 A. fixed capacitors B. variable capacitors C. contacts, closed when the circuit is energized D. contacts, open when the circuit is energized

Description : As shown in the illustration, 'H1' and 'H2' are ___________. EL-0058 A. fixed capacitors B. variable capacitors C. contacts, closed when the circuit is energized D. contacts, open when the circuit is energized

Last Answer : Answer: D

An open-circuit fault between the pressure switch and the 'annunciator module' shown in the illustration would cause the alarm circuit to react in the same manner as if ___________. EL-0094 A. 3.5 volts were applied to the 'setpoint module' B. 'reduction gear lube oil pressure' fell below switch setting C. 50 PSI were applied to the 'setpoint module' D. the pressure switch closed

Description : An open-circuit fault between the pressure switch and the 'annunciator module' shown in the illustration would cause the alarm circuit to react in the same manner as if ___________. EL-0094 A. 3.5 ... below switch setting C. 50 PSI were applied to the 'setpoint module' D. the pressure switch closed

Last Answer : Answer: B

During the start-up of the circuit shown in the illustration, it is noted that the ends of component 'C' remain lighted but the tube does not illuminate. The cause of this problem is ____________. EL-0081 A. component 'A' is open B. component 'D' is closed C. component 'C' is the wrong wattage D. component 'B' contacts are stuck closed

Description : During the start-up of the circuit shown in the illustration, it is noted that the ends of component 'C' remain lighted but the tube does not illuminate. The cause of this problem is ____________. EL- ... ' is closed C. component 'C' is the wrong wattage D. component 'B' contacts are stuck closed

Last Answer : Answer: D

In closed circuit grinding as compared to open circuit grinding, the (A) Specific surface of product is more (B) Product has lesser size uniformity (C) Production rate at a given limiting size is lower (D) Operation is economical

Description : In closed circuit grinding as compared to open circuit grinding, the (A) Specific surface of product is more (B) Product has lesser size uniformity (C) Production rate at a given limiting size is lower (D) Operation is economical

Last Answer : (D) Operation is economical

A infinite resistance is considered as a/an a) Closed path(short circuit) b) Open path c) Not defined d) Ammeter with zero reading

Description : A infinite resistance is considered as a/an a) Closed path(short circuit) b) Open path c) Not defined d) Ammeter with zero reading

Last Answer : b) Open path

A circuit is connected as shown in the figure with the switch S open. When the switch is closed, the total amount of charge that flows from Y to X is

Description : A circuit is connected as shown in the figure with the switch S open. When the switch is closed, the total amount of charge that flows from Y to X is

Last Answer : C

What is the effect on total resistance and total current in a circuit if an open occurs in (a) a parallel branch, and (b) in a series portion?

Description : What is the effect on total resistance and total current in a circuit if an open occurs in (a) a parallel branch, and (b) in a series portion?

Last Answer : (a) Total resistance increases, total current decreases (b) Total resistance becomes infinite, total current is equal to zero

Describe open loop and closed loop system.

Description : Describe open loop and closed loop system.

Last Answer : Open loop and closed loop system: Open system: When the input is independent of the output, the system is called open- loop system. The control action is based on only some ... system is called closed- loop control system. The output is continuously measured and fed to the input. 

What term is used to describe the frequency at which the filter circuit changes from the point of rejecting the unwanted frequencies to the point of passing the desired frequencies?

Description : What term is used to describe the frequency at which the filter circuit changes from the point of rejecting the unwanted frequencies to the point of passing the desired frequencies?

Last Answer : Frequency cutoff (fco).

Best way to get downtown from Telegraph Hill?

Description : Best way to get downtown from Telegraph Hill?

Last Answer : answer:If you want to take public transit, you could take the F Line from Embarcadero & Bay to Market & Kearny or pick up the #45 bus at Union & Columbus to Stockton & Geary. I would recommend riding a bike to ... won't work up too much of a sweat), and you'll get a great workout on your way home.

In which year was the first telegraph line between Calcutta and Agra opened? -Do You Know?

Description : In which year was the first telegraph line between Calcutta and Agra opened? -Do You Know?

Last Answer : answer:

How does the telegraph work ?

Description : How does the telegraph work ?

Last Answer : The invention of the telegraph in communication is like a milestone. There was a time when people had some limited and time consuming ways to communicate over long distances. People used to send ... began to be the coast of the Atlantic Ocean , and telegraph lines were established throughout Europe.

What is the energy conversion of a telegraph or radio transmitter ?

Description : What is the energy conversion of a telegraph or radio transmitter ?

Last Answer : In a telegraph or radio transmitter, sound energy is converted into electrical energy.

In what year was the electric telegraph invented ?

Description : In what year was the electric telegraph invented ?

Last Answer : The electric telegraph was invented in 1836.

When Nazrul went on hunger strike against the unjust behavior of Hooghly jail officials, what did he write and send telegraph to Rabindranath Nazrul ?

Description : When Nazrul went on hunger strike against the unjust behavior of Hooghly jail officials, what did he write and send telegraph to Rabindranath Nazrul ?

Last Answer : Give up hunger strike. Our literature claims you. Writes and sends telegraphs.

Who Discovered the Telegraph ?

Last Answer : Discover the Telegraph (FB Morse)

Where is the Daily Telegraph ?

Last Answer : Daily Telegraph - United Kingdom.

What was the faster overland communication service before the telegraph?

Description : What was the faster overland communication service before the telegraph?

Last Answer : The Pony Express

How did the invention of the telegraph help imperial powers develop in the Th century?

Description : How did the invention of the telegraph help imperial powers develop in the Th century?

Last Answer : What is the answer ?

What came first the telegraph or the telephone?

Description : What came first the telegraph or the telephone?

Last Answer : The telegraph.

What was the impact of Samuel f.b. Morse's telegraph?

Description : What was the impact of Samuel f.b. Morse's telegraph?

Last Answer : What is the answer ?

How did the telegraph improve life at home?

Description : How did the telegraph improve life at home?

Last Answer : The telegraph improved life at home because it madecommunication much faster and easier, Granted you needed to learnMorse Code. Communication went from sending a letter to the postoffice which could take ... of time for the letter toarrive at it's destination from practically getting a homephone.

Who did the is a series of dots and lines to represent numbers and letters using a telegraph?

Description : Who did the is a series of dots and lines to represent numbers and letters using a telegraph?

Last Answer : Need answer

How was Samuel Morse's telegraph was different from Marconi's invention?

Description : How was Samuel Morse's telegraph was different from Marconi's invention?

Last Answer : It used wires to transmit Morse Code over short distances

Which means of delivering mail went out of business in 1861 after the completion of the transcontinental telegraph?

Description : Which means of delivering mail went out of business in 1861 after the completion of the transcontinental telegraph?

Last Answer : IK

Who invented the telegraph and the code that the telegraph used?

Description : Who invented the telegraph and the code that the telegraph used?

Last Answer : Samuel Morse invented the telegraph and the code that the telegraph used (Morse Code).

How many telegraph channels are there in the basic voice band channels? A. 24 B. 96 C. 48 D. 672

Description : How many telegraph channels are there in the basic voice band channels? A. 24 B. 96 C. 48 D. 672

Last Answer : A. 24

Type of emission produced by one of the early radio transmitter in trains of damped RF ac waves where its oscillator is coupled to a long wire antenna, normally used in radio telegraph and having sidebands on its carrier. A. Digital emission B. Key emission C. Cycle emission D. Spark emission

Description : Type of emission produced by one of the early radio transmitter in trains of damped RF ac waves where its oscillator is coupled to a long wire antenna, normally used in radio telegraph and having sidebands on its carrier. A. Digital emission B. Key emission C. Cycle emission D. Spark emission

Last Answer : D. Spark emission

An interfering current in a telegraph or signaling channel due to telegraph or signaling current by another channel. A. Crosstalk B. Noise current C. Crossfire D. Intermodulation

Description : An interfering current in a telegraph or signaling channel due to telegraph or signaling current by another channel. A. Crosstalk B. Noise current C. Crossfire D. Intermodulation

Last Answer : C. Crossfire

Who developed the telegraph code? A. Andre Ampere B. Samuel Morse (Answer) C. Joseph Henry D. Jean Fourier

Description : Who developed the telegraph code? A. Andre Ampere B. Samuel Morse (Answer) C. Joseph Henry D. Jean Fourier

Last Answer : B. Samuel Morse (Answer)

A money order received but loss before payment a) The postmaster should then give an intimation to the office of issue by telegraph/fax b) After receiving the intimation the office of issue will prepare duplicate MO in MO 57 and forward to office of payment by service regd post c) A report regarding the issue of a duplicate money order should be made to the home postal account office. d) All the above

Description : A money order received but loss before payment a) The postmaster should then give an intimation to the office of issue by telegraph/fax b) After receiving the intimation the office of issue will prepare ... a duplicate money order should be made to the home postal account office. d) All the above

Last Answer : d) All the above

The following are the more important irregularities and occurrences which must be mentioned in the daily report a) All irregularities reported by telegraph/fax. b) Absence of carrier appointed to receive or deliver mails, the mails detained in consequence being mentioned. c) Receipt or dispatch of special bags; d) All the above

Description : The following are the more important irregularities and occurrences which must be mentioned in the daily report a) All irregularities reported by telegraph/fax. b) Absence of carrier appointed to receive or ... consequence being mentioned. c) Receipt or dispatch of special bags; d) All the above

Last Answer : atch of special bags;

Reports of transfer of charge of gezetted officer including Head of the circle and P&T Accountant should be sent by post (not telegraph) to the a) Next higher authority b) Audit officer concerned c) DG Post d) All the above

Description : Reports of transfer of charge of gezetted officer including Head of the circle and P&T Accountant should be sent by post (not telegraph) to the a) Next higher authority b) Audit officer concerned c) DG Post d) All the above

Last Answer : d) All the above

Mark the correct option: a) Rate applicable for recall of foreign article in case letter 10gm & Telegraph 15 words b) The fee paid for the recall will not be refunded under any circumstances c) Weight more than 500gm a warehousing charge at the rate per day commencing from eight day, shall be collected from the addressee at the time of delivery. d) All the above are correct

Description : Mark the correct option: a) Rate applicable for recall of foreign article in case letter 10gm & Telegraph 15 words b) The fee paid for the recall will not be refunded under any circumstances c) Weight ... , shall be collected from the addressee at the time of delivery. d) All the above are correct

Last Answer : d) All the above are correct

Most data communications involving telegraph lines use: a. simplex lines b. wideband channel c. narrowband channel d. dialed service

Description : Most data communications involving telegraph lines use: a. simplex lines b. wideband channel c. narrowband channel d. dialed service

Last Answer : narrowband channel

Important irregularities to be reported by telegraph /fax a) A due bag not received, or left behind b) A due mail, regd or parcel list not received or received missent c) A daily a/c, or SO Slip not received d) Absence of mail carrie e) All the above

Description : Important irregularities to be reported by telegraph /fax a) A due bag not received, or left behind b) A due mail, regd or parcel list not received or received missent c) A daily a/c, or SO Slip not received d) Absence of mail carrie e) All the above

Last Answer : e) All the above