Nickel-cadmium batteries are superior to lead-acid batteries at high discharge rates because they _______________. A. deliver a large amount of power and can be recharged in a shorter time B. need fewer cells in connected series and less mounting space C. have higher output voltages and require no maintenance D. all of the above

Nickel-cadmium batteries are superior to lead-acid batteries at high discharge rates because they _______________. A. deliver a large amount of power and can be recharged in a shorter time B. need fewer cells in connected series and less mounting space C. have higher output voltages and require no maintenance D. all of the above
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Answer: A
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At high discharge rates, nickel-cadmium storage batteries are superior to lead-acid batteries because they __________. A. require fewer cells for the same voltage and less mounting space B. are able to produce higher voltages and do not have to be charged as often C. can be charged and discharged many times without much damage D. have no individual cells to replace at the end of useful life

Description : At high discharge rates, nickel-cadmium storage batteries are superior to lead-acid batteries because they __________. A. require fewer cells for the same voltage and less mounting space B. are able to ... times without much damage D. have no individual cells to replace at the end of useful life

Last Answer : Answer: C

Nickel-cadmium storage batteries are superior to lead-acid batteries because they __________. A. put out higher voltages and require no maintenance B. can remain idle and keep a full charge for a long time C. need fewer cells in series and use less mounting space D. all of the above

Description : Nickel-cadmium storage batteries are superior to lead-acid batteries because they __________. A. put out higher voltages and require no maintenance B. can remain idle and keep a full charge for a long time C. need fewer cells in series and use less mounting space D. all of the above

Last Answer : Answer: B

Common nickel-cadmium and nickel-iron storage batteries utilize _______________. A. acid primary cells B. alkaline primary cells C. acid secondary cells D. alkaline secondary cells

Description : Common nickel-cadmium and nickel-iron storage batteries utilize _______________. A. acid primary cells B. alkaline primary cells C. acid secondary cells D. alkaline secondary cells

Last Answer : Answer: D

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

The plates of a NiCad storage battery are made of ________. A. potassium hydroxide with a small amount of sulfuric acid B. lead and lead peroxide C. silver oxide and lead sulfate D. combinations of nickel powder and nickel & cadmium salts

Description : The plates of a NiCad storage battery are made of ________. A. potassium hydroxide with a small amount of sulfuric acid B. lead and lead peroxide C. silver oxide and lead sulfate D. combinations of nickel powder and nickel & cadmium salts

Last Answer : Answer: D

Compare between lead acid and nickel-cadmium batteries?

Description : Compare between lead acid and nickel-cadmium batteries?

Last Answer : Lead acid : Dilute H2SO4, spongy and PbSO2, low efficiency, 2 volt per cell, less strong, requires more maintenance, less efficient wrt temperature, discharges fast, low cost, problem of sulfation.

Batteries 'A' and 'B' shown in the illustration are 6 volts each and batteries 'C' and 'D' are 24 volts each. If 'A' were connected in series-opposing to 'C' and 'B' was similarly connected to'D', the result would be _______________. EL-0039 A. 18 volts, negative at the top terminal B. 18 volts, positive at the top terminal C. 30 volts, negative at the bottom terminal D. 30 volts, positive at the bottom terminal

Description : Batteries 'A' and 'B' shown in the illustration are 6 volts each and batteries 'C' and 'D' are 24 volts each. If 'A' were connected in series-opposing to 'C' and 'B' was similarly ... the top terminal C. 30 volts, negative at the bottom terminal D. 30 volts, positive at the bottom terminal

Last Answer : Answer: A

Whic of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc.? (1) Iron and cadmium (2) Nickel and cadmium (3) Lead peroxide and lead (4) Zinc and carbon

Description : Whic of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc.? (1) Iron and cadmium (2) Nickel and cadmium (3) Lead peroxide and lead (4) Zinc and carbon

Last Answer : (2) Nickel and cadmium Explanation: A rechargeable battery, storage battery, or accumulator is a type of electrical battery. It comprises one or more electrochemical cells, and is a ... sizes, ranging from button cells to megawatt systems connected to stabilize an electrical distribution network.

Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ? (1) Iron and cadmium (2) Nickel and cadmium (3) Lead peroxide and lead (4) Zinc and carbon

Description : Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ? (1) Iron and cadmium (2) Nickel and cadmium (3) Lead peroxide and lead (4) Zinc and carbon

Last Answer : Nickel and cadmium

The electrolyte used in a nickel-cadmium battery is distilled water and ______________. A. diluted sulfuric acid B. potassium hydroxide C. lead sulfate D. zinc oxide

Description : The electrolyte used in a nickel-cadmium battery is distilled water and ______________. A. diluted sulfuric acid B. potassium hydroxide C. lead sulfate D. zinc oxide

Last Answer : Answer: B

Praziquantel is preferred over niclosamide for Taenia solium infestation because: A. It achieves higher cure rates B. It produces fewer side effects C. It does not lead to digestion of worm and kills encysted larvae, so that chances of cysticercosis are minimized D. Both ‘A’ and ‘B’ are correct

Description : Praziquantel is preferred over niclosamide for Taenia solium infestation because: A. It achieves higher cure rates B. It produces fewer side effects C. It does not lead to digestion of worm and kills encysted larvae, so that chances of cysticercosis are minimized D. Both ‘A’ and ‘B’ are correct

Last Answer : C. It does not lead to digestion of worm and kills encysted larvae, so that chances of cysticercosis are minimized

When charging lead-acid batteries, the charging rate should be reduced as the battery nears its full charge to ____________. A. prevent damaging battery plates B. allow equalization of cell voltages C. reduce lead sulfate deposits D. increase lead peroxide formation

Description : When charging lead-acid batteries, the charging rate should be reduced as the battery nears its full charge to ____________. A. prevent damaging battery plates B. allow equalization of cell voltages C. reduce lead sulfate deposits D. increase lead peroxide formation

Last Answer : Answer: A

When charging lead-acid batteries, you should reduce the charging rate as the battery nears its full charge capacity to ______________. A. prevent excessive gassing and overheating B. allow equalization of cell voltages C. reduce lead sulfate deposits D. increase lead peroxide formation

Description : When charging lead-acid batteries, you should reduce the charging rate as the battery nears its full charge capacity to ______________. A. prevent excessive gassing and overheating B. allow equalization of cell voltages C. reduce lead sulfate deposits D. increase lead peroxide formation

Last Answer : Answer: A

Do lead acid batteries require maintenance?

Description : Do lead acid batteries require maintenance?

Last Answer : Answers is the place to go to get the answers you need and to ask the questions you want

Do lead acid batteries require maintenance?

Description : Do lead acid batteries require maintenance?

Last Answer : Answers is the place to go to get the answers you need and to ask the questions you want

Three 12 volt, lead-acid, batteries connected in series will develop __________. A. 12 volts B. 24 volts C. 36 volts D. 48 volts

Description : Three 12 volt, lead-acid, batteries connected in series will develop __________. A. 12 volts B. 24 volts C. 36 volts D. 48 volts

Last Answer : Answer: C

The storage battery generally used in electric power station is A. Nickel-cadmium battery B. Zinc carbon battery C. Lead-acid battery D. None of the above

Description : The storage battery generally used in electric power station is A. Nickel-cadmium battery B. Zinc carbon battery C. Lead-acid battery D. None of the above

Last Answer : C. Lead-acid battery

The storage battery generally used in electric power station is A] nickel-cadmium battery B] zinc-carbon battery C] lead-acid battery D] None of the above

Description : The storage battery generally used in electric power station is A] nickel-cadmium battery B] zinc-carbon battery C] lead-acid battery D] None of the above

Last Answer : C] lead-acid battery

Local action in a nickel-cadmium battery is offset by _____________. A. separating the positive and negative plates with plastic spacers B. separating the positive and negative plates with resin impregnated spacers C. adding a small amount of lithium hydroxide to the electrolyte D. trickle charging

Description : Local action in a nickel-cadmium battery is offset by _____________. A. separating the positive and negative plates with plastic spacers B. separating the positive and negative plates with resin impregnated spacers C. adding a small amount of lithium hydroxide to the electrolyte D. trickle charging

Last Answer : Answer: D

Batteries 'A' and 'B' shown in the illustration are 6 volts each and batteries 'C' and 'D' are 24 volts each. If 'A' and 'B' were reconnected to be in series-opposing to 'C' and 'D' respectively, the result would be _______________. EL-0039 A. 18 volts, negative at the top terminal B. 18 volts, positive at the top terminal C. 30 volts, negative at the bottom terminal D. 30 volts, positive at the bottom terminal

Description : Batteries 'A' and 'B' shown in the illustration are 6 volts each and batteries 'C' and 'D' are 24 volts each. If 'A' and 'B' were reconnected to be in series-opposing to 'C' and 'D' ... at the top terminal C. 30 volts, negative at the bottom terminal D. 30 volts, positive at the bottom terminal

Last Answer : Answer: A

Routine maintenance of lead acid batteries should include _____________. A. keeping the terminals clean B. coating cable connections with petroleum jelly C. maintaining a trickle charge D. all of the above

Description : Routine maintenance of lead acid batteries should include _____________. A. keeping the terminals clean B. coating cable connections with petroleum jelly C. maintaining a trickle charge D. all of the above

Last Answer : Answer: D

Can I replace Nickel Cadmium batteries with NiMH?

Description : Can I replace Nickel Cadmium batteries with NiMH?

Last Answer : Yah, that’s fine. Just don’t put your NiMH batteries in the NiCad charger.

What will be the total output voltage if four 1.5 volt batteries are connected in a series-parallel arrangement as shown in the illustration? EL-0039 A. 1.5 volts B. 3.0 volts C. 4.5 volts D. 6.0 volts

Description : What will be the total output voltage if four 1.5 volt batteries are connected in a series-parallel arrangement as shown in the illustration? EL-0039 A. 1.5 volts B. 3.0 volts C. 4.5 volts D. 6.0 volts

Last Answer : Answer: B

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

The electrical diagram shown in the illustration shows _____________. EL-0021 A. 'R1', 'R2', and 'R3' are connected is series B. 'R1', 'R2', and 'R3' are connected in parallel C. the voltages measured across 'R1', 'R2' and 'R3' will be different if 'R1', 'R2' and 'R3' have different values D. the total resistance equals R1 + R2 + R3

Description : The electrical diagram shown in the illustration shows _____________. EL-0021 A. 'R1', 'R2', and 'R3' are connected is series B. 'R1', 'R2', and 'R3' are connected in parallel C. the voltages measured across ... if 'R1', 'R2' and 'R3' have different values D. the total resistance equals R1 + R2 + R3

Last Answer : Answer: B

Which of the following statements is correct for the illustrated circuit? EL-0020 A. 'R1', 'R2', and 'R3' are connected in series. B. 'R1', 'R2', and 'R3' are connected in parallel. C. The voltages measured across 'R1', 'R2', and 'R3' are equal. D. The total resistance equals 1/R1 + 1/R2 + 1/R

Description : Which of the following statements is correct for the illustrated circuit? EL-0020 A. 'R1', 'R2', and 'R3' are connected in series. B. 'R1', 'R2', and 'R3' are connected in parallel. C. The voltages measured across 'R1', 'R2', and 'R3' are equal. D. The total resistance equals 1/R1 + 1/R2 + 1/R

Last Answer : Answer: A

Pin #8 of the astern valve position sensor shown in the illustration is connected _______________. EL-0099 A. to analog common B. in series with PCOM C. to (-) 50 volts D.C. D. to (+) 50 volts D.C.

Description : Pin #8 of the astern valve position sensor shown in the illustration is connected _______________. EL-0099 A. to analog common B. in series with PCOM C. to (-) 50 volts D.C. D. to (+) 50 volts D.C.

Last Answer : Answer: A

Rechargeable batteries How many times can batteries be recharged?

Description : How many times can I spend again, how many years can they last?

Last Answer : I had it that it went bankrupt in 2-3 months, in many cases it will wear out in 1-2 years. In principle, they can be recharged many times, exactly how many times, I don’t know, but such a rechargeable battery will never last as long as a good long-lasting battery.

What is the approximate voltage produced by a nickel-cadmium battery cell? A. 1.25 volts B. 1.50 volts C. 2.20 volts D. 6.05 volts

Description : What is the approximate voltage produced by a nickel-cadmium battery cell? A. 1.25 volts B. 1.50 volts C. 2.20 volts D. 6.05 volts

Last Answer : Answer: A

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

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

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

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

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 nickel-cadmium battery is receiving a normal charge and gases freely. The charging current should _____________. A. be increased B. be decreased C. be cut off and the battery allowed to cool D. remain the same

Description : A nickel-cadmium battery is receiving a normal charge and gases freely. The charging current should _____________. A. be increased B. be decreased C. be cut off and the battery allowed to cool D. remain the same

Last Answer : Answer: D

What are the disadvantages of nickel cadmium battery?

Description : What are the disadvantages of nickel cadmium battery? 

Last Answer : Status of charge not known Number of cells are more Cost very high Environmental protection agency considers cadmium as a hazardous material, difficult to discard at the end of life. 

Which is the modified form of batteries in today’s electronic cars? A. Lithium ion B. Nickel iron C. Lead Acid D. Sodium Nitrate

Description : Which is the modified form of batteries in today’s electronic cars? A. Lithium ion B. Nickel iron C. Lead Acid D. Sodium Nitrate

Last Answer : A. Lithium ion

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 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

Electric ovens using heating elements of _______________ can produce temperature upto 3000°C. (A) Nickel (B) Graphite (C) Chromium (D) Iron

Description : Electric ovens using heating elements of _______________ can produce temperature upto 3000°C. (A) Nickel (B) Graphite (C) Chromium (D) Iron

Last Answer : Ans: C Chromium has high melting point.

As compared to shunt and compound DC motors, the series DC motor will have the highest torque because of its comparatively ____________ at the start. (A) Lower armature resistance. (B) Stronger series field. (C) Fewer series turns. (D) Larger armature current.

Description : As compared to shunt and compound DC motors, the series DC motor will have the highest torque because of its comparatively ____________ at the start. (A) Lower armature resistance. (B) Stronger series field. (C) Fewer series turns. (D) Larger armature current.

Last Answer : (D) Larger armature current.

Steps to carry out the maintenance of lead acid batteries

Description : Steps to carry out the maintenance of lead acid batteries

Last Answer : Steps to carry out the maintenance of lead acid batteries: 1) Keep the container surface dry by using dry cloths. 2) Tighten the terminal connections. 3) Battery should not be discharged ... 9) During initial charging use fresh electrolyte. 10) Avoid overcharging and short circuit of plates.

High voltages lead to A. less power loss B. more power loss C. high current D. high resistance

Description :   High voltages lead to A. less power loss B. more power loss C. high current D. high resistance

Last Answer : less power loss

During maintenance of circuit breakers, _______________. A. always smooth roughened contact surfaces with a file B. never pass more than rated breaker current through the overload heater element C. inspect for wear and misalignment of main contacts D. assume heater elements installed are of correct size

Description : During maintenance of circuit breakers, _______________. A. always smooth roughened contact surfaces with a file B. never pass more than rated breaker current through the overload heater element C. ... wear and misalignment of main contacts D. assume heater elements installed are of correct size

Last Answer : Answer: C