When you check the specific gravity of the battery electrolyte with a hydrometer, it should be kept in mind that ____________. A. the battery is fully charged when the indicator floats low in the electrolyte B. any water that has been previously added to the cells will dilute the solution and give a false reading C. a hydrometer reading is inaccurate if taken immediately after water is added to the cell D. temperature has no effect on hydrometer readings

When you check the specific gravity of the battery electrolyte with a hydrometer, it should be kept in mind that ____________. A. the battery is fully charged when the indicator floats low in the electrolyte B. any water that has been previously added to the cells will dilute the solution and give a false reading C. a hydrometer reading is inaccurate if taken immediately after water is added to the cell D. temperature has no effect on hydrometer readings
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Answer: C
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Related questions

When checking the specific gravity of the battery electrolyte with a hydrometer, you should be aware that ________________. A. the battery is fully charged when the float sinks deepest into the electrolyte B. the battery is discharged when the float is highest in the electrolyte C. a hydrometer reading is accurate if taken immediately after water is added to the cell D. warm temperatures will lower the specific gravity of the electrolyte

Description : When checking the specific gravity of the battery electrolyte with a hydrometer, you should be aware that ________________. A. the battery is fully charged when the float sinks deepest into the ... is added to the cell D. warm temperatures will lower the specific gravity of the electrolyte

Last Answer : Answer: D

Which of the following statements concerning the specific gravity of a battery electrolyte is true? A. The electrolyte becomes less dense when it is cooled. B. The specific gravity reading is lowered when the electrolyte is heated. C. The most accurate hydrometer reading is obtained immediately after water is added. D. The temperature does not affect the specific gravity of the electrolyte.

Description : Which of the following statements concerning the specific gravity of a battery electrolyte is true? A. The electrolyte becomes less dense when it is cooled. B. The specific gravity reading is lowered ... water is added. D. The temperature does not affect the specific gravity of the electrolyte.

Last Answer : Answer: B

A lead-acid battery is considered fully charged when the ______________. A. electrolyte gasses freely B. battery charger ammeter indicates a positive reading C. terminal voltage reaches a constant value at a given temperature D. specific gravity of all cells reaches the correct value and no longer increases over a period of 1 to 4 hours

Description : A lead-acid battery is considered fully charged when the ______________. A. electrolyte gasses freely B. battery charger ammeter indicates a positive reading C. terminal voltage reaches a constant value at a ... cells reaches the correct value and no longer increases over a period of 1 to 4 hours

Last Answer : Answer: D

A hydrometer is used to measure the ____________. A. specific gravity of a battery electrolyte B. water pressure in a deck pipeline C. amount of potable water a vessel is taking on D. power developed by a salt water service pump

Description : A hydrometer is used to measure the ____________. A. specific gravity of a battery electrolyte B. water pressure in a deck pipeline C. amount of potable water a vessel is taking on D. power developed by a salt water service pump

Last Answer : Answer: A

To determine the state of charge of a nickel-cadmium battery, you should ___________. A. check the electrolyte with a hydrometer B. use the constant specific gravity method C. use a nonbreakable mercury thermometer D. connect a voltmeter to the battery terminals

Description : To determine the state of charge of a nickel-cadmium battery, you should ___________. A. check the electrolyte with a hydrometer B. use the constant specific gravity method C. use a nonbreakable mercury thermometer D. connect a voltmeter to the battery terminals

Last Answer : Answer: D

Which of the listed ranges represents specific gravity corrected for temperature for the electrolyte of a fully charged portable lead-acid battery? A. 1.100 to 1.150 B. 1.180 to 1.200 C. 1.280 to 1.300 D. 1.750 to 2.000

Description : Which of the listed ranges represents specific gravity corrected for temperature for the electrolyte of a fully charged portable lead-acid battery? A. 1.100 to 1.150 B. 1.180 to 1.200 C. 1.280 to 1.300 D. 1.750 to 2.000

Last Answer : Answer: C

The freezing point of the electrolyte in a fully charged lead-acid battery will be _____________. A. higher than in a discharged battery B. lower than in a discharged battery C. the same as in a discharged battery D. higher than in a discharged battery, but the specific gravity will be less

Description : The freezing point of the electrolyte in a fully charged lead-acid battery will be _____________. A. higher than in a discharged battery B. lower than in a discharged battery C. the same as in a discharged battery D. higher than in a discharged battery, but the specific gravity will be less

Last Answer : Answer: B

When troubleshooting an alkaline storage battery a weak or dead cell is best located by ____________. A. checking the specific gravity of each cell B. visually inspecting each cell's electrolyte level C. testing each cell with a voltmeter D. measuring the electrolyte temperature with an accurate mercury thermometer

Description : When troubleshooting an alkaline storage battery a weak or dead cell is best located by ____________. A. checking the specific gravity of each cell B. visually inspecting each cell's ... testing each cell with a voltmeter D. measuring the electrolyte temperature with an accurate mercury thermometer

Last Answer : Answer: C

The specific gravity of the electrolyte in a lead-acid battery is measured by a _____________. A. gould plate B. titration pipette C. hydrometer D. litmus paper test

Description : The specific gravity of the electrolyte in a lead-acid battery is measured by a _____________. A. gould plate B. titration pipette C. hydrometer D. litmus paper test

Last Answer : Answer: C

Which of the following represents the corrected specific gravity of a lead acid battery, with a temperature of 90°F, and a hydrometer reading of 1160? A. 1150 B. 1156 C. 1160 D. 1164

Description : Which of the following represents the corrected specific gravity of a lead acid battery, with a temperature of 90°F, and a hydrometer reading of 1160? A. 1150 B. 1156 C. 1160 D. 1164

Last Answer : Answer: D

Which of the following conditions indicates that a lead-acid battery is being charged too rapidly? A. Sparks occurring at the positive terminal. B. Unusually high electrolyte specific gravity. C. Low plate potentials being developed. D. Excessively high temperatures and gassing rates.

Description : Which of the following conditions indicates that a lead-acid battery is being charged too rapidly? A. Sparks occurring at the positive terminal. B. Unusually high electrolyte specific gravity. C. Low plate potentials being developed. D. Excessively high temperatures and gassing rates.

Last Answer : Answer: D

Violent gassing from a lead-acid battery while it is being charged, indicates that the _____________. A. plate separators are grounded B. battery compartment ventilation is inadequate C. electrolyte specific gravity is too low D. charging rate is too high

Description : Violent gassing from a lead-acid battery while it is being charged, indicates that the _____________. A. plate separators are grounded B. battery compartment ventilation is inadequate C. electrolyte specific gravity is too low D. charging rate is too high

Last Answer : Answer: D

The state of charge of a lead-acid battery is best indicated by the ____________. A. individual cell voltage B. ampere-hour capacity C. electrolyte specific gravity D. total cell voltage

Description : The state of charge of a lead-acid battery is best indicated by the ____________. A. individual cell voltage B. ampere-hour capacity C. electrolyte specific gravity D. total cell voltage

Last Answer : Answer: C

When troubleshooting a lead-acid storage battery, a weak or dead cell is best detected by _________________. A. measuring and comparing all cells' specific gravity B. taking an open circuit voltage test of individual cells C. visually inspecting the electrolyte levels of each cell D. taking each cell's temperature with a calibrated mercury thermometer

Description : When troubleshooting a lead-acid storage battery, a weak or dead cell is best detected by _________________. A. measuring and comparing all cells' specific gravity B. taking an open circuit ... electrolyte levels of each cell D. taking each cell's temperature with a calibrated mercury thermometer

Last Answer : Answer: A

Electrostatic forces in high voltage circuits cause indicating instruments to give ____________. A. parallax readings B. highly intuitive readings C. highly accurate readings D. inaccurate readings

Description : Electrostatic forces in high voltage circuits cause indicating instruments to give ____________. A. parallax readings B. highly intuitive readings C. highly accurate readings D. inaccurate readings

Last Answer : Answer: D

If violent gassing occurs when a lead-acid storage battery is first placed on charge, the _____________. A. battery must be given an emergency charge B. charging rate is too low C. charging rate is too high D. specific gravity of the electrolyte solution is too low

Description : If violent gassing occurs when a lead-acid storage battery is first placed on charge, the _____________. A. battery must be given an emergency charge B. charging rate is too low C. charging rate is too high D. specific gravity of the electrolyte solution is too low

Last Answer : Answer: C

When charging a nickel-cadmium battery, ____________. A. the charging rate should be lessened when gassing commences B. overcharging should be avoided C. the specific gravity of the electrolyte will be unaffected by the state of charge D. add distilled water just prior to charging to insure proper mixing

Description : When charging a nickel-cadmium battery, ____________. A. the charging rate should be lessened when gassing commences B. overcharging should be avoided C. the specific gravity of the electrolyte will be ... by the state of charge D. add distilled water just prior to charging to insure proper mixing

Last Answer : Answer: C

You use a hydrometer to check the condition of the electrolyte in your car battery. It is actually measuring what property of the fluid? w) charge x) density y) temperature z) surface tension

Description : You use a hydrometer to check the condition of the electrolyte in your car battery. It is actually measuring what property of the fluid? w) charge x) density y) temperature z) surface tension 

Last Answer : ANSWER: X -- DENSITY

A slow continual loss of electrolyte level from one cell of a storage battery could be due to _______________. A. a cracked casing B. too low a charging rate C. the specific gravity being higher than normal D. one filler cap installed too tightly

Description : A slow continual loss of electrolyte level from one cell of a storage battery could be due to _______________. A. a cracked casing B. too low a charging rate C. the specific gravity being higher than normal D. one filler cap installed too tightly

Last Answer : Answer: A

A generator has been exposed to water and is being checked for its safe operation. Therefore, it is necessary to _______________. A. check for shorted coils with a growler B. take moisture readings with a hydrometer C. test insulation values with a megger D. ground the commutator, or slip rings and run it at half load for 12 hours

Description : A generator has been exposed to water and is being checked for its safe operation. Therefore, it is necessary to _______________. A. check for shorted coils with a growler B. take moisture readings with a ... a megger D. ground the commutator, or slip rings and run it at half load for 12 hours

Last Answer : Answer: C

Define specific gravity and mention the specific gravity of a fully charged lead acid battery?

Description : Define specific gravity and mention the specific gravity of a fully charged lead acid battery?

Last Answer : Specific gravity of a substance is the comparison of density of the substance with the density of pure water. Specific gravity = Density of the substance / density of pure water.    ... - 27°C)*0.0007. Indicated specific gravity = 1.205 and t' means electrolyte temperature.   

Which of the following procedures represents the best method to prevent the freezing of batteries continuously exposed to low temperatures? A. The battery caps should be removed. B. The battery cap vents should be sealed. C. The battery should be kept in a fully charged condition. D. The battery should be disconnected from its charging source.

Description : Which of the following procedures represents the best method to prevent the freezing of batteries continuously exposed to low temperatures? A. The battery caps should be removed. B. The battery cap ... in a fully charged condition. D. The battery should be disconnected from its charging source.

Last Answer : Answer: C

The specific gravity of the electrolyte solution in a lead acid battery _____________. A. is not effected during charging B. remains the same during discharge C. would read close to 1.830 when discharged D. gives an indication of the state of charge of the battery

Description : The specific gravity of the electrolyte solution in a lead acid battery _____________. A. is not effected during charging B. remains the same during discharge C. would read close to 1.830 when discharged D. gives an indication of the state of charge of the battery

Last Answer : Answer: D

When correcting specific gravity readings of a lead-acid battery for existing temperature conditions, you should ______________. A. add 10 points for each 4° above 80°F B. subtract 10 points for each 4° above 80°F C. add 4 points for each 10° above 80°F D. add 4 points for each 10° below 80°F

Description : When correcting specific gravity readings of a lead-acid battery for existing temperature conditions, you should ______________. A. add 10 points for each 4° above 80°F B. subtract 10 points for each 4° above 80°F C. add 4 points for each 10° above 80°F D. add 4 points for each 10° below 80°F

Last Answer : Answer: C

When a nickel-cadium battery begins gassing while connected to the battery charging circuit, you should _____________. A. do nothing as this is a normal condition when charging B. add distilled water to each cell to reduce the specific gravity of the electrolyte C. add potassium hydroxide to each cell to increase the specific gravity of the electrolyte D. decrease the charging rate

Description : When a nickel-cadium battery begins gassing while connected to the battery charging circuit, you should _____________. A. do nothing as this is a normal condition when charging B. add distilled water ... to each cell to increase the specific gravity of the electrolyte D. decrease the charging rate

Last Answer : Answer: A

The state of charge of a lead acid storage battery is best indicated by the _____________. A. testing of the individual cell voltages B. ampere hour capacity of the battery C. specific gravity of the electrolyte D. total cell voltages

Description : The state of charge of a lead acid storage battery is best indicated by the _____________. A. testing of the individual cell voltages B. ampere hour capacity of the battery C. specific gravity of the electrolyte D. total cell voltages

Last Answer : Answer: C

Which of the following statements concerning nickel-cadmium batteries is true? A. When mixing electrolyte always add acid to the water. B. Nickel-cadmium batteries can be charged and discharged only a limited number of times without damage to the cells. C. Nickel-cadmium batteries can be stored for a long time and still keep a full charge without additional charging. D. The electrolyte of an idle nickel-cadmium battery must be replaced monthly to maintain battery condition.

Description : Which of the following statements concerning nickel-cadmium batteries is true? A. When mixing electrolyte always add acid to the water. B. Nickel-cadmium batteries can be charged and ... The electrolyte of an idle nickel-cadmium battery must be replaced monthly to maintain battery condition.

Last Answer : Answer: C

Trickle charger of a storage battery helps to A. Maintain proper electrolyte level B. Increase its reverse capacity C. Prevent sulphation D. Keep it fresh and fully charged

Description : Trickle charger of a storage battery helps to A. Maintain proper electrolyte level B. Increase its reverse capacity C. Prevent sulphation D. Keep it fresh and fully charged

Last Answer : D. Keep it fresh and fully charged

The standard procedure for maintaining the charge in an emergency diesel starting battery is to trickle charge the battery _____________. A. continuously B. at least once each week C. whenever the charge falls to 75% of full charge D. whenever the electrolyte specific gravity falls to 1.250 or lower

Description : The standard procedure for maintaining the charge in an emergency diesel starting battery is to trickle charge the battery _____________. A. continuously B. at least once each week C. whenever the charge falls to 75% of full charge D. whenever the electrolyte specific gravity falls to 1.250 or lower

Last Answer : Answer: A

State the important points kept in mind while recording the staff readings in level pages with respect first reading, intermediate reading, last reading, change point, carry forward from one page to next page-Remark

Description : State the important points kept in mind while recording the staff readings in level pages with respect first reading, intermediate reading, last reading, change point, carry forward from one page to next page-Remark

Last Answer : 1) First reading is on bench mark point and should be noted in back sight(BS) column 2) Intermediate reading (IS) should be taken on the points between first and last station. 3) Last reading ... column of next page 6) Remark column should have denote First and Last RL along with change points.

State the important points kept in mind while recording the readings in level pages with respect first reading, intermediate readings, last reading, and change point, carry forward from one page to next page - Remarks.

Description : State the important points kept in mind while recording the readings in level pages with respect first reading, intermediate readings, last reading, and change point, carry forward from one page to next page - Remarks. 

Last Answer : The following points should be kept in mind while recording the reading in level pages. 1. The first reading should be always noted as back sight (B.S.) 2. All the intermediate readings should ... horizontal line represents only one station. 8. Readings of each station should be in one line only.

Air gap readings should be periodicly taken for electrical generation equipment. The best tool to use to take these measurements is a ___________. A. cloth (non-metalic) tape measure B. dial indicator C. inside micrometer D. tapered, long blade, feeler gage

Description : Air gap readings should be periodicly taken for electrical generation equipment. The best tool to use to take these measurements is a ___________. A. cloth (non-metalic) tape measure B. dial indicator C. inside micrometer D. tapered, long blade, feeler gage

Last Answer : Answer: D

Maintenance of alkaline batteries should include _________. A. checking the electrolyte weekly using a hydrometer B. replacing the electrolyte every 5 years C. trickle charging D. replacment when the volts per cell drops below 1.8 VDC

Description : Maintenance of alkaline batteries should include _________. A. checking the electrolyte weekly using a hydrometer B. replacing the electrolyte every 5 years C. trickle charging D. replacment when the volts per cell drops below 1.8 VDC

Last Answer : Answer: C

Violent gassing developed by a lead-acid battery during charging indicates that the ____________. A. plate separators are grounded B. cell voltages are excessive C. specific gravity in insufficient D. charging rate is excessive

Description : Violent gassing developed by a lead-acid battery during charging indicates that the ____________. A. plate separators are grounded B. cell voltages are excessive C. specific gravity in insufficient D. charging rate is excessive

Last Answer : Answer: D

The charge of a lead-acid battery is checked with a/an ____________. A. manometer B. hydrometer C. voltmeter D. ohmmeter

Description : The charge of a lead-acid battery is checked with a/an ____________. A. manometer B. hydrometer C. voltmeter D. ohmmeter

Last Answer : Answer: B

To test the state of charge of a nickel-cadmium battery, you should use a/an ____________. A. ammeter B. voltmeter C. hydrometer D. potentiometer

Description : To test the state of charge of a nickel-cadmium battery, you should use a/an ____________. A. ammeter B. voltmeter C. hydrometer D. potentiometer

Last Answer : Answer: B

A breakable, mercury-filled thermometer should not be used in a lead-acid battery to measure electrolyte temperature, as an accidental breakage can cause ____________. A. severe sparking and explosions B. rapid oxidation of battery plates C. violent gassing at the positive plates D. corrosion on the battery terminals

Description : A breakable, mercury-filled thermometer should not be used in a lead-acid battery to measure electrolyte temperature, as an accidental breakage can cause ____________. A. severe sparking and explosions ... battery plates C. violent gassing at the positive plates D. corrosion on the battery terminals

Last Answer : Answer: A

When charging a 100 amp-hour lead-acid battery, ___________. A. the temperature of the electrolyte should not be allowed to exceed 90°F B. the charging rate should be no greater than 125% of the battery amp-hour rating C. the source of power for charging should be 2.5 volts per cell D. gassing within the battery decreases when nearing full charge and it will be necessary to reduce the charging current to a low finishing rate

Description : When charging a 100 amp-hour lead-acid battery, ___________. A. the temperature of the electrolyte should not be allowed to exceed 90°F B. the charging rate should be no greater than 125% of the ... nearing full charge and it will be necessary to reduce the charging current to a low finishing rate

Last Answer : Answer: C

If the illustrated device is fully discharged, what will be the result? EL-0061 A. The battery will be short circuited because the mud space will be filled with lead sulfate B. The electrolyte will be maximum sulfuric acid minimum water C. The electrolyte will be maximum water minimum sulfuric acid. D. The plates will be maximum lead oxide and sponge lead minimum lead sulfate.

Description : If the illustrated device is fully discharged, what will be the result? EL-0061 A. The battery will be short circuited because the mud space will be filled with lead sulfate B. The electrolyte ... minimum sulfuric acid. D. The plates will be maximum lead oxide and sponge lead minimum lead sulfate.

Last Answer : Answer: C

A hydrometer indicates specific gravity by comparing the _____________. A. density of a substance in water with the density of the same substance in air B. differences in weight between water and the liquid measured C. mass of substance measured with the density of the same substance D. buoyancy of an object in water with the buoyancy of the same object in the liquid being measured

Description : A hydrometer indicates specific gravity by comparing the _____________. A. density of a substance in water with the density of the same substance in air B. differences in weight between water and the ... of an object in water with the buoyancy of the same object in the liquid being measured

Last Answer : Answer: D

When a battery is continuously exposed to low temperatures, the best procedure to keep it from freezing is to _________. A. remove the battery caps B. securely cover the battery C. keep the battery fully charged D. disconnect the battery

Description : When a battery is continuously exposed to low temperatures, the best procedure to keep it from freezing is to _________. A. remove the battery caps B. securely cover the battery C. keep the battery fully charged D. disconnect the battery

Last Answer : Answer: C

Under which of the following conditions will a lead-acid battery be given a 'test discharge'? A. To determine its capacity. B. Whenever a cell cannot be brought within 10 points of full charge specific gravity. C. When one or more cells is found to have less than normal voltage after an equalizing charge. D. All of the above.

Description : Under which of the following conditions will a lead-acid battery be given a 'test discharge'? A. To determine its capacity. B. Whenever a cell cannot be brought within 10 points of full charge ... cells is found to have less than normal voltage after an equalizing charge. D. All of the above.

Last Answer : Answer: D

In accordance with Coast Guard Regulations (46 CFR), each battery operated relay-controlled lantern must _____________. A. be readily portable B. contain a dry cell battery having a minimum capacity of 10 amp hours C. have an automatic battery charger to maintain the battery in a fully charged state D. all of the above

Description : In accordance with Coast Guard Regulations (46 CFR), each battery operated relay-controlled lantern must _____________. A. be readily portable B. contain a dry cell battery having a minimum capacity of ... automatic battery charger to maintain the battery in a fully charged state D. all of the above

Last Answer : Answer: C

The open-circuit voltage of a fully charged lead-acid battery cell is _____________. A. 1.5 volts B. 1.8 volts C. 2.0 volts D. 2.3 volts

Description : The open-circuit voltage of a fully charged lead-acid battery cell is _____________. A. 1.5 volts B. 1.8 volts C. 2.0 volts D. 2.3 volts

Last Answer : Answer: C

Which of the listed battery charging circuits is used to maintain a wet-cell, lead-acid, storage battery in a fully charged state during long periods of disuse? A. Normal charging circuit B. Quick charging circuit C. Trickle charging circuit D. High ampere charging circuit

Description : Which of the listed battery charging circuits is used to maintain a wet-cell, lead-acid, storage battery in a fully charged state during long periods of disuse? A. Normal charging circuit B. Quick charging circuit C. Trickle charging circuit D. High ampere charging circuit

Last Answer : Answer: C

Maintenance of alkaline batteries should include _________. A. checking the electrolyte weekly using a hydrometer B. replacing the electrolyte every 5 years C. top off with sulfuric acid as needed D. making certain connections are tight and clean

Description : Maintenance of alkaline batteries should include _________. A. checking the electrolyte weekly using a hydrometer B. replacing the electrolyte every 5 years C. top off with sulfuric acid as needed D. making certain connections are tight and clean

Last Answer : Answer: D

In which of the situations listed will a megohmmeter give the most accurate readings? A. While the machine is in operation. B. While the machine is discharging static electricity. C. Immediately prior to restarting the machine. D. When the machine has been shut down and grounded for a period of 15 minutes.

Description : In which of the situations listed will a megohmmeter give the most accurate readings? A. While the machine is in operation. B. While the machine is discharging static electricity. C. Immediately prior to ... machine. D. When the machine has been shut down and grounded for a period of 15 minutes.

Last Answer : Answer: D

pecific gravity of fully charged storage battery is ∙ 1.15 ∙ 1.50 ∙ 1.28 ∙ 2.15

Description : pecific gravity of fully charged storage battery is ∙ 1.15 ∙ 1.50 ∙ 1.28 ∙ 2.15

Last Answer : ∙ 1.28

If air gap readings for an electical generating machine have changed significantly from the last reading, you should check _________. A. the bearings B. insulation readings and machine cleanliness C. the prime mover thrust bearing D. the field coil bolts for the proper torque values

Description : If air gap readings for an electical generating machine have changed significantly from the last reading, you should check _________. A. the bearings B. insulation readings and machine cleanliness C. the prime mover thrust bearing D. the field coil bolts for the proper torque values

Last Answer : Answer: A

Proper storage battery maintenance includes ____________. A. keeping connections tight and casing surfaces clean B. making sure electrolyte level is below the separator plates C. insulating the terminals with naval jelly D. maintaining a high charging rate at all times

Description : Proper storage battery maintenance includes ____________. A. keeping connections tight and casing surfaces clean B. making sure electrolyte level is below the separator plates C. insulating the terminals with naval jelly D. maintaining a high charging rate at all times

Last Answer : Answer: A