The ground detection system, shown in the illustration for a low-voltage, threephase system has a ground in line 'A'. Therefore, lamp 'A' will burn ____________. EL-0009 A. dimly or be out, and lamps 'B' and 'C' will burn brightly B. normally, and lamps 'B' and 'C' will burn dimly or be out C. brightly, and lamps 'B' and 'C' will burn dimly or be out D. brightly, and lamps 'B' and 'C' will burn normally

Question

The ground detection system, shown in the illustration for a low-voltage, threephase system has a ground in line 'A'. Therefore, lamp 'A' will burn ____________. EL-0009 A. dimly or be out, and lamps 'B' and 'C' will burn brightly B. normally, and lamps 'B' and 'C' will burn dimly or be out C. brightly, and lamps 'B' and 'C' will burn dimly or be out D. brightly, and lamps 'B' and 'C' will burn normally

asked Jan 4, 2022 by anonymous

1 Answer

Answer :

Answer: A

answered Jan 4, 2022 by anonymous

Related questions

A ground detection system is shown in the illustration for a three-phase ungrounded distribution system. Which of the following statements describes the conditions indicated if a full ground occurs in line 'A'? EL-0009 A. Lamp 'A' will burn brightly and Lamps 'B' and 'C' will go out. B. Lamp 'A' will burn brightly and Lamps 'B' and 'C' will burn dimly but not go out. C. Lamp 'A' will burn brightly and Lamps 'B' and 'C' will burn with normal intensity. D. Lamp 'A' will go out and Lamps 'B' and 'C' will burn brightly.

Description : A ground detection system is shown in the illustration for a three-phase ungrounded distribution system. Which of the following statements describes the conditions indicated if a full ground occurs in line 'A'? EL-0009 A ... . D. Lamp 'A' will go out and Lamps 'B' and 'C' will burn brightly.

Last Answer : Answer: D

In the illustrated ground detection system with a ground on phase A, if the switch is opened __________. EL-0009 A. lamp A will dim or go out depending on the severity of the ground B. all three lamps will return to their normal brightness indicating that the bulbs are not burnt out C. lamps B and C will dim lamp A will be brighter D. lamp A will start flickering if the ground is in an AC induction motor

Description : In the illustrated ground detection system with a ground on phase A, if the switch is opened __________. EL-0009 A. lamp A will dim or go out depending on the severity of the ground B. all three ... lamp A will be brighter D. lamp A will start flickering if the ground is in an AC induction motor

Last Answer : Answer: B

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

The illustrated test is being conducted on the motor shown in the illustration, if the lamp lights dimly then ________. EL-0027 A. the bulb needs to be changed to one with a higher wattage rating B. safety procedures need to be reviewed because the test presents a severe electrical shock hazard to the person conducting the test and anyone touching the motor frame C. the disconnected wires are touching, they need to be seperated and the test conducted again D. a ground or partial ground is indicated, a check with a megger should confirm the lamp test

Description : The illustrated test is being conducted on the motor shown in the illustration, if the lamp lights dimly then ________. EL-0027 A. the bulb needs to be changed to one with a higher wattage rating B. ... D. a ground or partial ground is indicated, a check with a megger should confirm the lamp test

Last Answer : Answer: D

After turning on the fluorescent lamp shown in the illustration, you note that the ends of the tube alternately glow and becomce dark without illuminating the center. The most obable cause for this is that ____________. EL-0081 A. component 'D' is loose and due to the ship's vibrations makes and breaks contact B. the power system's voltage is fluctuating in and out of the range necessary for proper operation C. component 'A' is shorted and therefore unable to produce the high voltage required to start the lamp D. component 'B' contacts are opening and closing thus prohibiting sufficient current flow

Description : After turning on the fluorescent lamp shown in the illustration, you note that the ends of the tube alternately glow and becomce dark without illuminating the center. The most obable cause for ... the lamp D. component 'B' contacts are opening and closing thus prohibiting sufficient current flow

Last Answer : Answer: C

During start-up of the circuit shown in the illustration, it is noted that the ends of component 'C' alternately glow and become dark without the tube illuminating. The most probable cause for this is that ____________. EL-0081 A. component 'D' is loose and due to the ship's vibrations makes and breaks contact B. the power system's voltage is fluctuating in and out of the range necessary for proper operation C. component 'A' is shorted and therefore unable to produce the high voltage required to start the lamp D. component 'B' contacts are opening and closing thus prohibiting sufficient current flow

Description : During start-up of the circuit shown in the illustration, it is noted that the ends of component 'C' alternately glow and become dark without the tube illuminating. The most probable cause ... start the lamp D. component 'B' contacts are opening and closing thus prohibiting sufficient current flow

Last Answer : Answer: C

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 _______________. A. the dark lamp must be replaced B. there is a ground in the line with the dark lamp C. there are grounds in two of the three phases D. the voltage to the dark lamp is less than that of the system

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

Last Answer : Answer: A

Federal Regulations (46 CFR) require the circuit in the illustration to _________. EL-0009 A. be at the vessel's ship's service generator distribution switchboard for normal power, normal lighting and emergency lighting systems. B. not have any resulting ground currents flow through hazardous locations on a tank vessel where line to line voltage exceeds 3,000 VAC C. not be used on systems where the resulting ground will interfere with the operation of electronic equipment D. All the above are correct

Description : Federal Regulations (46 CFR) require the circuit in the illustration to _________. EL-0009 A. be at the vessel's ship's service generator distribution switchboard for normal power, normal lighting ... ground will interfere with the operation of electronic equipment D. All the above are correct

Last Answer : Answer: A

The illustration shows a fluorescent light fixture. The ends of the lamp alternately glow and become dark, but the tube will not light. The most probable cause is that ____________. EL-0081 A. component 'D' is loose and due to the ship's vibrations makes and breaks contact B. the power system's voltage is fluctuating in and out of the range necessary for proper operation C. component 'A' is shorted and therefore unable to produce the high voltage required to start the lamp D. component 'B' contacts are opening and closing thus prohibiting sufficient current flow

Description : The illustration shows a fluorescent light fixture. The ends of the lamp alternately glow and become dark, but the tube will not light. The most probable cause is that ____________. EL-0081 ... start the lamp D. component 'B' contacts are opening and closing thus prohibiting sufficient current flow

Last Answer : Answer: C

Component 'C' in section 'I' shown in the illustration represent ____________. EL-0093 A. a selectable holding coil arrangement B. a 'fuse blown' indicator circuit C. 'reset' and 'trouble' lamps D. a handset with switch and voice elements

Description : Component 'C' in section 'I' shown in the illustration represent ____________. EL-0093 A. a selectable holding coil arrangement B. a 'fuse blown' indicator circuit C. 'reset' and 'trouble' lamps D. a handset with switch and voice elements

Last Answer : Answer: D

Power necessary to operate the horn relay shown in the illustration ____________. EL-0093 A. comes from each station's magneto B. is supplied from a 115 volt source C. is conducted through the relay's contacts D. also lights lamps 'R' and 'T'

Description : Power necessary to operate the horn relay shown in the illustration ____________. EL-0093 A. comes from each station's magneto B. is supplied from a 115 volt source C. is conducted through the relay's contacts D. also lights lamps 'R' and 'T'

Last Answer : Answer: A

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 should conclude that ____________. A. there is a ground on the line with the dark lamp B. the dark lamp must be replaced C. there are grounds on the lines with the bright lamps D. this is a normal condition

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

Last Answer : Answer: A

When using the test set-up shown in the illustration, the lighted lamp indicates the winding is ____________. EL-0027 A. grounded B. good C. open D. shorted

Description : When using the test set-up shown in the illustration, the lighted lamp indicates the winding is ____________. EL-0027 A. grounded B. good C. open D. shorted

Last Answer : Answer: A

The circuit illustrated represents a single phase AC ground detecting system. If a ground occurs on line 'B', which of the lamps will burn the brightest? EL-0008 A. X B. Y C. Both will be equal brightness. D. both will go out.

Description : The circuit illustrated represents a single phase AC ground detecting system. If a ground occurs on line 'B', which of the lamps will burn the brightest? EL-0008 A. X B. Y C. Both will be equal brightness. D. both will go out.

Last Answer : Answer: A

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 : 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

Last Answer : Answer: A

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 : 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

Last Answer : Answer: A

Erratic operation of the devices represented in the diagrams shown in the illustration could be traced to ____________. EL-0092 A. improper contact at 'R' slip rings or 'S' connections B. a low three-phase voltage supply C. improper contact at 'S' slip rings or 'R' connections D. a high three-phase voltage supply

Description : Erratic operation of the devices represented in the diagrams shown in the illustration could be traced to ____________. EL-0092 A. improper contact at 'R' slip rings or 'S' connections B. a low three- ... . improper contact at 'S' slip rings or 'R' connections D. a high three-phase voltage supply

Last Answer : Answer: A

If fuse #1 shown in the illustration is defective, a voltage tester connected across points 'C' and 'B' will ____________. EL-0062 A. show a reading of 55 volts B. show full line voltage across the fuse C. give positive indication that fuse #2 is good D. give positive indication that fuse #1 is defective

Description : If fuse #1 shown in the illustration is defective, a voltage tester connected across points 'C' and 'B' will ____________. EL-0062 A. show a reading of 55 volts B. show full line voltage ... C. give positive indication that fuse #2 is good D. give positive indication that fuse #1 is defective

Last Answer : Answer: D

As shown in the illustration, the symbol is used in electrical drawings to designate a ____________. EL-0026 A. limit switch with one set of normally open contacts B. maintaining type push button with an electrical interlock C. sustaining type push button with a mechanical interlock D. normally closed contact held open mechanically by an interlock

Description : As shown in the illustration, the symbol is used in electrical drawings to designate a ____________. EL-0026 A. limit switch with one set of normally open contacts B. maintaining type ... type push button with a mechanical interlock D. normally closed contact held open mechanically by an interlock

Last Answer : Answer: C

'A-1', as shown in the illustration, is/are ____________. EL-0017 A. normally-closed overload relay contacts B. a double pole knife switch C. normally-open overload relay contacts D. a single pole knife switch

Description : 'A-1', as shown in the illustration, is/are ____________. EL-0017 A. normally-closed overload relay contacts B. a double pole knife switch C. normally-open overload relay contacts D. a single pole knife switch

Last Answer : Answer: A

As shown in the illustration, the circuit has been on the line for several days when component 'E1' burns out. The operator receives an alarm, switches over 'B' to energize the standby component 'E2' and tells the electrician to renew 'E1'. The opera EL-0058 A. burned out rapidly due to an overused and overheated connection terminal which in turn led to 'C' burning out B. installation developed an accidental connection to 'D' and short-circuited the main line resulting in overloaded fuses just after the master switch C. is a 110 volt DC device being used in a 115 volt AC circuit and will conduct only on the positive half-cycle D. is of a lower wattage rating than required for the circuit therefore limiting the current through the alarm relay which will not pick up

Description : As shown in the illustration, the circuit has been on the line for several days when component 'E1' burns out. The operator receives an alarm, switches over 'B' to energize the standby ... than required for the circuit therefore limiting the current through the alarm relay which will not pick up

Last Answer : Answer: D

The ring circuit of the system shown in the illustration would become inoperative if a ground developed at ____________. EL-0093 A. either terminal 'T' or 'C' B. either terminal 'B' or 'R' C. both terminals 'B' and 'C' D. both terminals 'T' and 'R'

Description : The ring circuit of the system shown in the illustration would become inoperative if a ground developed at ____________. EL-0093 A. either terminal 'T' or 'C' B. either terminal 'B' or 'R' C. both terminals 'B' and 'C' D. both terminals 'T' and 'R'

Last Answer : Answer: C

The 'T-R' circuit of the system shown in the illustration would become inoperative if a ground developed at ____________. EL-0093 A. either 'T' or 'C' B. either 'B' or 'R' C. both 'B' and 'C' D. both 'T' and 'R'

Description : The 'T-R' circuit of the system shown in the illustration would become inoperative if a ground developed at ____________. EL-0093 A. either 'T' or 'C' B. either 'B' or 'R' C. both 'B' and 'C' D. both 'T' and 'R'

Last Answer : Answer: D

When changing out component 'B' of the circuit shown in the illustration, it is important to know that ____________. EL-0081 A. it is polarity sensitive and must be inserted as indicated on its base B. there is a danger of phosphor poisoning should 'B''s bulb break C. component 'D' must be closed during the replacement to provide the capacitor's initial charge D. it must match the circuit voltage and component 'C' wattage

Description : When changing out component 'B' of the circuit shown in the illustration, it is important to know that ____________. EL-0081 A. it is polarity sensitive and must be inserted as indicated on its ... provide the capacitor's initial charge D. it must match the circuit voltage and component 'C' wattage

Last Answer : Answer: D

As shown in the illustration, if 'R1' and 'R2' have unequal values, the ____________. EL-0019 A. voltage drop across 'R1' will not be equal to the voltage drop across 'R2' B. current flow through 'R1' will equal the current flow through 'R2' C. the energy dissipated in 'R1' will be the same as the energy dissipated in 'R2' D. current flow through 'R1' will differ from the current flow through 'R2'

Description : As shown in the illustration, if 'R1' and 'R2' have unequal values, the ____________. EL-0019 A. voltage drop across 'R1' will not be equal to the voltage drop across 'R2' B. current flow ... energy dissipated in 'R2' D. current flow through 'R1' will differ from the current flow through 'R2'

Last Answer : Answer: D

When replacing component 'B' of the circuit shown in the illustration, it is important to know that ____________. EL-0081 A. it is polarity sensitive and must be inserted as indicated on its base B. there is a danger of phosphor poisoning should 'B''s bulb break C. component 'D' must be closed during the replacement to provide the capacitor's initial charge D. it must match the circuit voltage and component 'C' wattage

Description : When replacing component 'B' of the circuit shown in the illustration, it is important to know that ____________. EL-0081 A. it is polarity sensitive and must be inserted as indicated on its ... provide the capacitor's initial charge D. it must match the circuit voltage and component 'C' wattage

Last Answer : Answer: D

When the circuit shown in the illustration is operating correctly, the voltage at the reference electrode will be kept in the optimum range of ____________. EL-0090 A. 0.01 - 0.05 volt B. 0.80 - 0.85 volt C. 35 - 60 volts D. 100 - 115 volts

Description : When the circuit shown in the illustration is operating correctly, the voltage at the reference electrode will be kept in the optimum range of ____________. EL-0090 A. 0.01 - 0.05 volt B. 0.80 - 0.85 volt C. 35 - 60 volts D. 100 - 115 volts

Last Answer : Answer: B

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-S2-S3' turn faster because of induced currents B. ring at the receiving station until the turning stops C. receive a higher voltage depending on the turns ratio D. align itself to the same position if free to move

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

Section II of the circuit shown in the illustration is the ____________. EL-0085 A. voltage regulator B. filter C. rectifier D. voltage transformer

Description : Section II of the circuit shown in the illustration is the ____________. EL-0085 A. voltage regulator B. filter C. rectifier D. voltage transformer

Last Answer : Answer: C

Power necessary to operate the horn shown in the illustration _____________. EL-0093 A. comes from each station's magneto B. is supplied from a 115 volt source C. is conducted through a relay coil D. also lights lamps 'R' and 'T'

Description : Power necessary to operate the horn shown in the illustration _____________. EL-0093 A. comes from each station's magneto B. is supplied from a 115 volt source C. is conducted through a relay coil D. also lights lamps 'R' and 'T'

Last Answer : Answer: B

As shown in the illustration, a 'pitch cutback' feature is incorporated in the system. This circuit reduces pitch amount to prevent engine overload when it senses ____________. EL-0095 A. pitch error of any magnitude B. wrong direction of the 'pitch servo' C. excessive propeller speed or fuel to either engine D. only one engine on the line

Description : As shown in the illustration, a 'pitch cutback' feature is incorporated in the system. This circuit reduces pitch amount to prevent engine overload when it senses ____________. EL-0095 A. pitch error of ... servo' C. excessive propeller speed or fuel to either engine D. only one engine on the line

Last Answer : Answer: C

The electrical schematic shown in the illustration represents a/an ____________. EL-0017 A. across-the-line starter B. primary-resistor starter C. autotransformer starter D. part-winding starter

Description : The electrical schematic shown in the illustration represents a/an ____________. EL-0017 A. across-the-line starter B. primary-resistor starter C. autotransformer starter D. part-winding starter

Last Answer : Answer: A

The electrical device shown in the illustration is a/an _____________. EL-0077 A. operating coil B. indicating lamp C. motor armature D. potentiometer

Description : The electrical device shown in the illustration is a/an _____________. EL-0077 A. operating coil B. indicating lamp C. motor armature D. potentiometer

Last Answer : Answer: D

Component 'B' of section 'I' shown in the illustration represents a _____________. EL-0093 A. bridge rectifier B. selsyn motor C. small generator D. shielded lamp

Description : Component 'B' of section 'I' shown in the illustration represents a _____________. EL-0093 A. bridge rectifier B. selsyn motor C. small generator D. shielded lamp

Last Answer : Answer: C

The 'annunciator module' and 'controller' shown in the illustration together provide for _____________. EL-0094 A. blinking lamp on alarm; testing the lamp and alarm; and logging alarm conditions B. acknowledging alarm conditions; logging data at the end of the watch; and blinking the lamp C. flashing lamp on alarm; connecting +24 volts to the lamp and horn; and driving the horn via a relay D. testing the visual and audible alarms; flashing lamp on alarm; and silencing the horn when answering an alarm

Description : The 'annunciator module' and 'controller' shown in the illustration together provide for _____________. EL-0094 A. blinking lamp on alarm; testing the lamp and alarm; and logging alarm conditions B ... visual and audible alarms; flashing lamp on alarm; and silencing the horn when answering an alarm

Last Answer : Answer: D

What is the purpose of the 'annunciator module' (6000F35) shown in the illustration? EL-0094 A. Provide an input to the setpoint module. B. Drive the alarm lamp and, through the controller, the horn. C. Deliver +5 and +24 volts to their respective power supplies. D. Connect 24 volts to both sides of the horn.

Description : What is the purpose of the 'annunciator module' (6000F35) shown in the illustration? EL-0094 A. Provide an input to the setpoint module. B. Drive the alarm lamp and, through the controller, the horn. ... and +24 volts to their respective power supplies. D. Connect 24 volts to both sides of the horn.

Last Answer : Answer: B

Which component of the circuit shown in the illustration is the lamp? EL-0081 A. A B. B C. C D. D

Description : Which component of the circuit shown in the illustration is the lamp? EL-0081 A. A B. B C. C D. D

Last Answer : Answer: C

If there is a reduction in the normally supplied frequency to a 120/240 volt, threephase AC current motor from 60 hertz to 55 hertz, the motor would _____________. A. run at a slower speed B. operate at a lower current C. overheat D. trip off the line

Description : If there is a reduction in the normally supplied frequency to a 120/240 volt, threephase AC current motor from 60 hertz to 55 hertz, the motor would _____________. A. run at a slower speed B. operate at a lower current C. overheat D. trip off the line

Last Answer : Answer: A

A current-carrying conductor makes accidental contact with a wiring conduit. This will be indicated by a _____________. A. low switchboard wattmeter reading B. high switchboard wattmeter reading C. darkened switchboard ground detecting lamp D. darkened switchboard synchronizing lamps

Description : A current-carrying conductor makes accidental contact with a wiring conduit. This will be indicated by a _____________. A. low switchboard wattmeter reading B. high switchboard wattmeter reading C. darkened switchboard ground detecting lamp D. darkened switchboard synchronizing lamps

Last Answer : Answer: C

As shown in the illustrations of console schematic diagrams, each circuit card and component, such as a relay or indicating lamp, has an identifier attached. This identifier, which is composed of digits and letters, is to ____________. EL-0099 A. be used only by manufacturer's service technicians and is of little importance to the ship's engineers B. identify the overall circuit in which the component or circuit card is being used C. specify the month and year of manufacture so that a similar unit can be ordered as a spare D. indicate where the item may actually be found on the console by section, surface and possible subassembly

Description : As shown in the illustrations of console schematic diagrams, each circuit card and component, such as a relay or indicating lamp, has an identifier attached. This identifier, which is composed of ... where the item may actually be found on the console by section, surface and possible subassembly

Last Answer : Answer: D

Four lamps are connected in parallel in a single circuit. If one of the lamp burns out, the others will _____________. A. all go out B. become dimmer C. burn with their original intensities D. become brighter

Description : Four lamps are connected in parallel in a single circuit. If one of the lamp burns out, the others will _____________. A. all go out B. become dimmer C. burn with their original intensities D. become brighter

Last Answer : Answer: C

The wiring diagram for the motor starting circuit shown in the illustration indicates ______________. EL-0007 A. resistance starting B. reduced voltage starting C. low voltage protection D. low voltage release

Description : The wiring diagram for the motor starting circuit shown in the illustration indicates ______________. EL-0007 A. resistance starting B. reduced voltage starting C. low voltage protection D. low voltage release

Last Answer : Answer: C

The 'reset' contacts of the master switch shown in the illustration provides the winch controller with ___________. EL-0102 A. low voltage release B. overload protection C. low voltage protection D. high power factor correction

Description : The 'reset' contacts of the master switch shown in the illustration provides the winch controller with ___________. EL-0102 A. low voltage release B. overload protection C. low voltage protection D. high power factor correction

Last Answer : Answer: C

The electrical supply applied to the anodes shown in the illustration is _____________. EL-0090 A. low voltage, high current DC B. low voltage, high current AC C. high voltage, low current DC D. high voltage, low current AC

Description : The electrical supply applied to the anodes shown in the illustration is _____________. EL-0090 A. low voltage, high current DC B. low voltage, high current AC C. high voltage, low current DC D. high voltage, low current AC

Last Answer : Answer: A

The component labeled 'CR1' in the circuit shown in the illustration __________________. EL-0085 A. varies its anode/cathode polarity depending on 'RL' current B. rectifies the varying voltage from the collector of 'Q1' C. acts as a low capacitive reactance to smooth ripple D. establishes a constant reference voltage for the base of 'Q1'

Description : The component labeled 'CR1' in the circuit shown in the illustration __________________. EL-0085 A. varies its anode/cathode polarity depending on 'RL' current B. rectifies the varying voltage from the ... reactance to smooth ripple D. establishes a constant reference voltage for the base of 'Q1'

Last Answer : Answer: D

Since the characteristics of the device shown in figure 'A' of the illustration includes a stable voltage and low current while operating, it can be suitably used in _____________. EL-0065 A. oscillators and SCR trigger circuits B. class A and B amplifiers C. generator rectifier and filtering supplies D. all of the above

Description : Since the characteristics of the device shown in figure 'A' of the illustration includes a stable voltage and low current while operating, it can be suitably used in _____________. EL-0065 A. oscillators ... . class A and B amplifiers C. generator rectifier and filtering supplies D. all of the above

Last Answer : Answer: A

Which of the listed types of lighting circuits does the diagram shown in the illustration represent? EL-0081 A. High pressure sodium B. Low voltage quartz C. Mercury vapor D. Standard fluorescent

Description : Which of the listed types of lighting circuits does the diagram shown in the illustration represent? EL-0081 A. High pressure sodium B. Low voltage quartz C. Mercury vapor D. Standard fluorescent

Last Answer : Answer: D

Which of the following actions must be carried out prior to closing the alternator circuit breaker according to the graph shown in the illustration? EL-0002 A. Increase the alternator voltage. B. Decrease the line voltage. C. Increase the line voltage. D. Decrease the line frequency.

Description : Which of the following actions must be carried out prior to closing the alternator circuit breaker according to the graph shown in the illustration? EL-0002 A. Increase the alternator voltage. B. Decrease the line voltage. C. Increase the line voltage. D. Decrease the line frequency.

Last Answer : Answer: A

Which of the following statements is true regarding the illustrated circuit? El-0069 A. This full wave bridge should never be used aboard ship because the ground on lead 'A' will show on the ship's ground detection system. B. Lead 'X' will always be positive (+) with respect to ground. C. This bridge circuit output will be direct current suitable for electronic circuits requiring voltage regulation. D. All the above are true.

Description : Which of the following statements is true regarding the illustrated circuit? El-0069 A. This full wave bridge should never be used aboard ship because the ground on lead 'A' will show on ... be direct current suitable for electronic circuits requiring voltage regulation. D. All the above are true.

Last Answer : Answer: B

As shown in the illustration, the same indication occurs when 'C' opens as when ____________. EL-0058 A. 'E2' burns out B. 'H2' opens C. 'G' opens D. 'F' burns out

Description : As shown in the illustration, the same indication occurs when 'C' opens as when ____________. EL-0058 A. 'E2' burns out B. 'H2' opens C. 'G' opens D. 'F' burns out

Last Answer : Answer: A

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