Practice Test (See related pages) 1 The lead-sulfuric acid cell is the type used in most automobiles. A) True B) False 2 If a battery has a low internal resistance, then the source can maintain constant output voltage for different values of load current. A) True B) False 3 Primary cells can be recharged. A) True B) False 4 A dry cell has a dry electrolyte. A) True B) False 5 An internal resistance of less than 1 Ω is considered good for a voltage source cell. A) True B) False 6 A carbon-zinc D cell may operate indefinitely with a continuous drain at its rated current. A) True B) False 7 Mercury cells are easy to obtain despite hazards associated with proper disposal after use. A) True B) False 8 It is common practice to store small nonrechargeable batteries in a coolplace. A) True B) False 9 The lead-acid cell can be recharged. A) True B) False 10 A common rating used with lead-acid batteries is . 11 The ratio comparing the weight of a substance with the weight of water is called specific . 12 A method in which a charger and a battery are always connected to each other to supply current to the load is referred to as charging. 13 A storage cell that can be recharged by reversing the internal chemical reaction is called a cell. 14 Any source that produces voltage output continuously is a . 15 A device for converting chemical energy into electrical energy is a(n) cell. 16 Specific gravity is a ratio comparing the weight of a substance with the weight of . 17 cells are made of semiconductor materials which generate voltage output with light input. 18 What type cell has the ability to deliver high current and be cycled many times for recharging? A) zinc-chloride B) lithium C) nickel-cadmium D) nickel-iron 19 What type cell is an electrochemical device that converts hydrogen and oxygen into water and in the process produces electricity? A) manganese dioxide B) solar C) fuel D) primary 20 The combination of cells is called a A) battery B) charger C) recombination D) constant current generator 21 A group of cells that generate energy from an internal chemical reaction is a(n) A) constant-current source B) generator C) battery D) electrolyte 22 A secondary cell is also known as a A) primary cell B) storage cell C) dry cell D) galvanic cell 23 The carbon zinc cell is very common because of its A) ability to be recharged B) ability to operate in temperatures of 125°F or higher C) ability to operate without polarization D) low cost 24 What cell has an output of 1.5 V and is available as either a primary or secondary cell and lasts much longer than a carbon-zinc cell? A) mercuric oxide B) alkaline C) nickel-iron D) lithium 25 A lithium cell can provide how many times more energy than the equivalent carbon-zinc cell? A) 1 B) 2 C) 5 D) 10
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