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
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
Description : 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 ... less mounting space C. have higher output voltages and require no maintenance D. all of the above
Last Answer : Answer: A
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.
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
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
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.
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
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
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
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
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.
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
Description : The main constituent of permalloy is (a) cobalt (b) chromium (c) nickel (d) tungsten
Last Answer : (c) nickel
Description : What is the specific gravity of electrolyte used in lead acid battery?
Last Answer : 1280 at full charge and 1180 at discharge.
Description : What is the voltage available from each cell in a lead acid battery?
Last Answer : 2 V DC.
Description : How can a solar array power source be bypassed when the batteries run low?
Last Answer : Ah got it. If anyone else is interested, you need an “automatic transfer switch” – or get a manual one for that mad scientist charm.
Description : What safety precautions need to be taken during maintenance on batteries?
Last Answer : The room needs to be ventilated to prevent explosions due to gases generate by the battery. Protective clothing, gloves and eye protection should be used to prevent acid splash ... flashover. When disconnecting batteries, always disconnect negative terminals first and vice versa when reconnecting.
Description : What is the regular maintenance done on batteries?
Last Answer : Every week the cell voltage is checked. The specific gravity is monitored using the battery hydrometer. The terminals are lubricated to prevent corrosion. Sometimes load tests are done on the batteries. Ask E/O also for more information.
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
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
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
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
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
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
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
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.
Description : Compare industrial electrical installation and residential electrical installation.
Last Answer : Basis Residential Electrical Installation Commercial Electrical Installation Load capacity Less High Input Supply Generally single phase Generally 3 phase Purpose Domestic ... supply voltage is equal to or more then 400V then there is need of caution notice
Description : Which one of the following metals pollutes the air of a city having large number of automobiles? A. Cadmium B. Chromium C. Lead D. Copper
Last Answer : ANSWER: C
Description : Minamata disease was caused by: (1) Mercury (2) Lead (3) Cadmium (4) Zinc
Last Answer : (1) Mercury Explanation: Minamata disease is a neurological syndrome caused by severe mercury poisoning. Symptoms include ataxia, numbness in the hands and feet, general muscle weakness, narrowing of the ... speech. It was first discovered in Minamata city in Kumamoto prefecture, Japan, in 1956.
Description : Of the following, which one pol-lutes the air of a big City? (1) Copper (2) Chromium (3) Lead (4) Cadmium
Last Answer : (3) Lead Explanation: The most common source of lead air pollution is from metal processing, but there are other manufacturing and industry sources as well. The highest lead air pollution levels are ... pollution is a dangerous form of pollution because of the way lead builds up in our bodies.
Description : Which one of the following metals pollutes the air of a city having large number of automobiles? (1) Cadmium (2) Chromium (3) Lead (4) Copper
Last Answer : (3) Lead Explanation: The history of car pollution has been one of air and water contamination followed by regulated improvement. Cars and trucks cause a lot of air the pollution in the world ... . But since leaded gasoline has been phased out, lead emissions have decreased by about 98 percent.
Description : In a nuclear reactor the material use for absorbing neutrons is – (1) zinc (2) radium (3) lead (4) cadmium
Last Answer : (4) cadmium Explanation: One isotope of cadmium, 113Cd, absorbs neutrons with very high probability if they have an energy below the cadmium cut-off and transmits them otherwise. The cadmium ... below the cut-off are deemed slow neutrons, distinguishing them from intermediate and fast neutrons.
Description : The anode of a dry cell is made up of - (1) Iron (2) Cadmium (3) Zine (4) Lead
Last Answer : (3) Zine Explanation: A standard dry cell comprises a zinc anode (negative pole), usually in the form of a cylindrical pot, with a carbon cathode (positive Pole) in the form of a ... up bye. second paste consisting of amoniumm chloride and manganese dioxide, the latter acting as a depolariser.
Description : White metal is an alloy of (A) Lead, tin and cadmium (B) Copper, tin and zinc (C) Copper and lead (D) None of these
Last Answer : (D) None of these
Description : Which of the following metals in not used for coating of the base metal to guard it against corrosion? (A) Lead (B) Cadmium (C) Magnesium (D) Aluminium
Last Answer : (C) Magnesium
Description : Most hazardous metal pollutant of automobile exhausts is (a) mercury (b) cadmium (c) lead (d) copper.
Last Answer : (c) lead
Description : Itai-Itai disease is due to the toxicity of a) Lead b) Cadmium c) Strontium d) Tin.
Last Answer : b) Cadmium
Description : ‘Minamata disaster’ in Japan was caused by pollution due to (A) Lead (B) Mercury (C) Cadmium (D) Zinc
Description : Minamata disease was caused by : (1) Mercury (2) Lead (3) Cadmium (4) Zinc
Last Answer : Mercury
Description : Of the following, which one pollutes the air of a big city ? (1) Copper (2) Chromium (3) Lead (4) Cadmium
Last Answer : Lead
Description : In a nuclear reactor the material use for absorbing neutrons is (1) zinc (2) radium (3) lead (4) cadmium
Last Answer : cadmium
Description : The anode of a dry cell is made up of (1) Iron (2) Cadmium (3) Zinc (4) Lead
Last Answer : Zinc
Description : Which of the following battery is used for aircraft? A. Lead acid battery B. Nickel-iron battery C. Dry cell battery D. Silver oxide battery
Last Answer : B. Nickel-iron battery
Description : Batteries used for diesel engine starting should __________. A. be located in a locker on the weather deck B. be located as close as possible to the engine C. have sufficient capacity to provide at least 50 starts consecutively without recharging D. only be of the nickel alkaline type
Description : What are the various types of batteries used in electric vehicles • Lithium ion batteries • Sodium nickel chloride batteries • Sodium sulphor batteries • All of the above
Last Answer : • All of the above
Description : Sodium nickel chloride batteries are also called as • Horse • Zebra • Cobra • Turbo
Last Answer : • Zebra
Description : Average lifespan of sodium nickel chloride batteries • 5 years • 10 years • 15 years • 20 years
Last Answer : • 15 years