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

1 Answer

Answer :

Answer: D

Related questions

Description : As shown in the illustration, what happens when 'A' is closed, 'B' is in position '2' and component 'E2' burns out? EL-0058 A. 'H' energizes and 'D' makes contact. B. 'F' goes out allowing 'G' to disconnect. C. 'G' sounds an alarm and 'F' illuminates. D. 'C' opens causing 'A' to also open.

Last Answer : Answer: C

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

Description : To stop the electric motor shown in the illustration, the stop button is depressed, causing ____________. EL-0012 A. coil 'MS' to become de-energized B. contacts 'CR1' and 'MR4' to open C. contacts 'MR1', 'MR2', and 'MR3' to open D. contacts 'MS1', 'MS2', and 'MS3' to open

Last Answer : Answer: C

Description : When the motor shown in the illustration is running and the stop button is pushed, which of the following statements will hold true? EL-0010 A. Coil 'M' will now be energized. B. Coil 'CR' will now be energized. C. Contact 'M' will close as contact 'CR' opens. D. Contacts 'M' and 'CR' will open.

Last Answer : Answer: D

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

Description : As shown in the illustration, once the "LV" relay is energized for operation, what contacts must remain closed to maintain the "LV" relay energized when the control lever is moved away from the "off" or "stop" ... . B. Reset contacts. C. Upper set of "LVa" contacts. D. Lower set of "LVa" contacts.

Last Answer : Answer: C

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

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

Description : As shown in the illustration, what is responsible for maintaining the "LV" relay energized when the master switch handle is moved away from the "off" position? EL-0102 A. "DBa" contact. B. Reset contacts. C. Upper set of "LVa" contacts. D. Lower set of "LVa" contacts.

Last Answer : Answer: C

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

Description : The turns ratio of transforme 'A' shown in the illustration is four to one and all taps are evenly spaced. If 110 volts were applied to terminals 'X1' and 'X3', what would be indicated across 'H1' and 'H2'? EL-0082 A. 37.5 volts B. 55 volts C. 220 volts D. 440 volts

Last Answer : Answer: C

Description : The turns ratio of device 'B' shown in the illustration is two to one (total). If 220 volts were applied to terminals 'H1' & 'H2', what would be indicated across 'X1' & 'X4' with 'X2' & 'X3' connected and isolated? EL-0082 A. 55 volts B. 110 volts C. 220 volts D. 440 volts

Last Answer : Answer: B

Description : The turns ratio of device 'B' shown in the illustration is two to one (total). If 110 volts were applied to terminals 'X1,3' and 'X2,4', what would be indicated across 'H1' and 'H2'? EL-0082 A. 27.5 volts B. 55 volts C. 220 volts D. 440 volts

Last Answer : Answer: D

Description : The turns ratio of device 'B' shown in the illustration is two to one (total). If 440 volts were applied to terminals 'H1' & 'H2', what would be indicated across 'X1' & 'X4' with 'X2' & 'X3' connected and isolated? EL-0082 A. 110 volts B. 220 volts C. 880 volts D. 1760 volts

Last Answer : Answer: B

Description : The turns ratio of device 'B' shown in the illustration is two to one (total). If 220 volts were applied to terminals 'H1' and 'H2', what would be indicated across 'X3' and 'X4'? EL-0082 A. 55 volts B. 110 volts C. 440 volts D. 880 volts

Last Answer : Answer: A

Description : The turns ratio of device 'B' shown in the illustration is two to one (total). If 440 volts were applied to terminals 'H1' and 'H2', what would be indicated across 'X1,3' and 'X2,4'? EL-0082 A. 55 volts B. 110 volts C. 220 volts D. 880 volts

Last Answer : Answer: B

Description : The turns ratio of device 'A' shown in the illustration is four to one and all taps are evenly spaced. If 110 volts were applied to terminals 'X1' and 'X3', what would be indicated across 'H1' and 'H2'? EL-0082 A. 37.5 volts B. 55 volts C. 220 volts D. 440 volts

Last Answer : Answer: C

Description : If the circuit shown in the illustration were energized and operating properly, which of the devices listed would be open? EL-0007 A. The stop push-button B. The start push-button C. Contact 'Ma' D. Contact 'OL1'

Last Answer : Answer: B

Description : As shown in the illustration, 'B' is a ____________. EL-0058 A. single-pole, double-throw switch B. double-pole, single-throw switch C. double-pole, double-throw switch D. circuit breaker

Last Answer : Answer: C

Description : As shown in the illustration, what maintenance would be required of the circuit components? EL-0058 A. Change out both 'C' units monthly. B. Clean the glass surrounding 'E1' & 'E2' as needed. C. File ... upper end of 'G' every six months. D. Take megger readings on 'E1' & 'E2' windings quarterly.

Last Answer : Answer: B

Description : The diagram shown in the illustration represents a _________. EL-0058 A. dual speed, 2-winding motor controller B. navigation running light circuit C. single phase, 2-motor selectable starter D. common fluorescent lighting circuit

Last Answer : Answer: B

Description : If 450 volts AC were measured across the load as shown in the illustration it would indicate a/an _______________. EL-0083 A. open winding between 'H1' and 'X1' B. properly operating circuit C. open winding between 'X1' and 'X4' D. ground on one side of 'Ep'

Last Answer : Answer: C

Description : When the master switch for the winch shown in the illustration is in the 'off' position, and the line & safe switches are closed, which of the listed relays should be energized? EL-0102 A. 'DB' & '2T' B. 'DB' & '4M' C. 'FR-B.O.' & 'LV' D. '1M' & '1A'

Last Answer : Answer: C

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

Description : When 'selector switch' 'SEL8' shown in the illustration is in the 'TEST' position, contacts '3,4' and '7,8' are respectively ____________. EL-0100 A. open; closed B. closed; open C. open; open D. closed; closed

Last Answer : Answer: B

Description : When 'selector switch' 'SEL8' shown in the illustration is in the 'OFF' position, contacts '3,4' and '7,8' are respectively ____________. EL-0100 A. open; closed B. closed; open C. open; open D. closed; closed

Last Answer : Answer: A

Description : When 'selector switch' 'SEL8' shown in the illustration is in the 'ON' position, contacts '3,4' and '7,8' are respectively ______________. EL-0100 A. open; closed B. closed; open C. open; open D. closed; closed

Last Answer : Answer: D

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

Description : Regarding the illustrated electrical schematic, 'S1-P', 'S1-Q', and 'S1-R' represent ____________. EL-0016 A. capacitors B. normally-closed contacts C. normally-open contacts D. normally-closed pushbutton switches

Last Answer : Answer: C

Description : The winch shown in the illustration will not operate in any speed in the lowering direction and at an abnormal speed in 'first point hoist'. The possible cause is that _______________. EL-0102 A. ... '1M' in the power circuit are badly corroded D. master switch contacts 'MS6' have weak springs

Last Answer : Answer: B

Description : The purpose of the capacitor within component 'B' of the circuit shown in the illustration is to ____________. EL-0081 A. prolong the life of the component's contacts B. discharge the neon within ... the inductive reactance in the circuit D. store power to operate the circuit should 'D' open

Last Answer : Answer: A

Description : The arrow drawn through the component shown in the illustration means that the device's value _____________. EL-0015 A. is fixed and cannot be changed B. is variable between two limits C. has yet to be determined for the circuit application D. is not allowed to change during circuit operation

Last Answer : Answer: B

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

Description : As shown in the illustration, all 'MS' contacts are opened and closed by means of ________. EL-0073 A. operating coils B. magnets C. manual operation of the master switches D. solenoid switches

Last Answer : Answer: C

Description : When the operating handle is in the 'off' position, which master switch contacts for the winch shown in the illustration are closed? EL-0102 A. 'MS-DB & OL' B. 'MS-3, 5, 6, 7, & 8' C. 'MS-LVa & OL' D. 'MS-3, 7 & Reset'

Last Answer : Answer: D

Description : The 'reset' contacts of the master switch shown in the illustration are ______________. EL-0102 A. closed only when the master switch is 'off' B. closed only when the master switch selects a 'run' condition C. opened separately by the winch operator D. opened when line voltage drops 10%

Last Answer : Answer: A

Description : In the schematic of the electrical circuit shown in the illustration, what is the value of the total capacitance, when compared to the value of equal individual capacitors? EL-0038 A. Equal B. Half C. Double D. Squared

Last Answer : Answer: C

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

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

Description : In the illustration, the contacts between terminals 26 and 27 should be closed when _________. EL-0046 A. using one generator in isochronous mode only B. using two or more generators in ... through varying loads in parallel or single operation D. the circuit breaker is closed for that generator

Last Answer : Answer: C

Description : When an operating motor is connected to the controller shown in the illustration, the a path of current flow through the circuit is ____________. EL-0010 A. 'L1', stop button, start button, coil 'CR', 'L2' B. 'L1' ... L2' D. 'L1', stop button, start button, 'CR' contact, 'M' contact, 'CR' coil, 'L2'

Last Answer : Answer: B

Description : As shown in the illustration, which of the operations listed will happen when the 'jog button' is pushed? EL-0010 A. Coil 'CR' closes the normally open 'CR' contacts. B. Coil 'M' opens contact 'M'. C. Coil 'M' closes contact 'M'. D. Contact 'M' remains open despite the jog button being pushed.

Last Answer : Answer: C

Description : The turns ratio of transformer 'A' shown in the illustration is four to one and all taps are evenly spaced. If 120 volts were applied to terminals 'H1' and 'H3', what would appear at 'X1' and 'X2'? EL-0082 A. 15 volts B. 30 volts C. 480 volts D. 960 volts

Last Answer : Answer: A

Description : The turns ratio of device 'A' shown in the illustration is four to one and all taps are evenly spaced. If 120 volts were applied to terminals 'H1' and 'H3', what would appear at 'X1' and 'X2'? EL-0082 A. 15 volts B. 30 volts C. 480 volts D. 960 volts

Last Answer : Answer: A

Description : The turns ratio of device 'A' shown in the illustration is four to one and all the taps are equally spaced. If 120 volts were applied between 'X1' and 'X2', what would be indicated across 'H1' and 'H4'? EL-0082 A. 30 volts B. 120 volts C. 480 volts D. 1440 volts

Last Answer : Answer: D

Description : The turns ratio of device 'A' shown in the illustration is four to one and all taps are equally spaced. If 440 volts were applied between 'H1' and 'H4', what would appear across 'X1' and 'X4'? EL-0082 A. 110 volts B. 220 volts C. 440 volts D. 1760 volts

Last Answer : Answer: A