Description : What is used in storage batteries? (1) Copper (2) Tin (3) Lead (4) Zinc
Last Answer : (3) Lead Explanation: The electrodes of the cells in a storage battery consist of lead grids. The openings of the anodic grid is filled with spongy (porous) lead. The openings of the cathodic grid ... ' storage batteries, can store a lot of charge and provide high current for short periods of time.
Last Answer : Lead
Description : Lead Storage batteries commonly contain ____. A. Copper B. Lead C. Iron D. Mercury
Last Answer : ANSWER: B
Description : Storage batteries commonly contain ____. A. Copper B. Lead C. Iron D. Mercury
Description : Babbitt metal (used for making bearings) comprises of (A) Mainly tin (85%) and lead (B) Saw dust and iron dust mixture (C) Zinc and aluminium (D) Copper and aluminium
Last Answer : (A) Mainly tin (85%) and lead
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 : Solder metal is an alloy of – (1) lead and tin (2) lead and antimony (3) copper and zinc (4) copper and tin
Last Answer : (1) lead and tin Explanation: A solder is a fusible metal alloy of tin and lead with a melting point or melting range of 90 to 450°C, used in a process called soldering where it is melted to jain metallic surfaces. It is especially useful in electronics and plumbing.
Description : Type metal used in printing press is an alloy of - (1) lead and copper (2) lead and antimony (3) lead and bismuth (4) lead and zinc
Last Answer : (2) lead and antimony Explanation: Lead and antimony are used to make type metals alloy. These type metals are used to make the character produced durable and tough.
Description : Type metal used in printing press is an alloy of – (1) lead and copper (2) lead and antimony (3) lead and bismuth (4) lead and zinc
Last Answer : (2) lead and antimony Explanation: In printing, type metal (sometimes called hot metal) refers to the metal alloys used in traditional type founding and hot metal typesetting. Lead is the main ... make castings with sharp details because molten lead shrinks and sags when it cools to a solid.
Description : Solder metal is an alloy of (1) lead and tin (2) lead and antimony (3) copper and zinc (4) copper and tin
Last Answer : lead and tin
Description : Type metal used in printing press is an alloy of (1) lead and copper (2) lead and antimony (3) lead and bismuth (4) lead and zinc
Last Answer : lead and antimony
Description : Asbestos is formed of : (1) Calcium and Magnesium (2) Copper, Zinc and Manganese (3) Lead and Iron (4) Calcium and Zinc
Last Answer : (1) Calcium and Magnesium Explanation: Pure and simple, asbestos is a group of naturally occurring minerals. It is composed of calcium and magnesium silicate. Asbestos occurs as veins in rocks and is mined from the ground, similar to coal.
Description : Electric fuse is an alloy of – (1) tin and lead (2) zinc and lead (3) copper and iron (4) carbon and tin
Last Answer : (1) tin and lead Explanation: Electric fuse is an alloy of tin and lead.
Description : Which of the following metals occurs in free state? (1) Copper (2) Iron (3) Zinc (4) Lead
Last Answer : (4) Lead Explanation: A native metal is any metal that is found in its metallic form, either pure or as an alloy, in nature. Metals that can be found as native deposits singly and/ or in ... group, and the platinum group. The gold group consists of gold, copper, lead, aluminium, mercury, and silver
Description : Electric fuse is an alloy of (1) tin and lead (2) zinc and lead (3) copper and iron (4) carbon and tin
Last Answer : tin and lead
Last Answer : Calcium and Magnesium
Description : Which of the following metals occurs in free state ? (1) Copper (2) Iron (3) Zinc (4) Lead
Description : Which one of the following metals is used to galvanise iron ? (1) Copper (2) Lead (3) Zinc (4) Mercury
Last Answer : Zinc
Description : Which among the following metal is used for galvanization? (1) Zinc (2) Copper (3) Iron (4) Silver
Last Answer : (1) Zinc Explanation: Galvanization is the process of applying a protective zinc coating to steel or iron, to prevent rusting. The most common method is hot-dip galvanizing, in which parts are submerged in a bath of molten zinc.
Description : The most abundant metal in the Earth’s crust is - (1) zinc (2) copper (3) aluminium (4) iron
Last Answer : (3) aluminium Explanation: The most abundant metal on Earth is aluminum. Aluminum is the third most abundant element in the Earth's crust, and makes up 8 percent of it by parts per million. The most abundant element in the Earth's crust is Oxygen followed by Silicon. Both of these are nonmetals.
Description : The most abundant metal in the Earth’s crust is (1) zinc (2) copper (3) aluminium (4) iron
Last Answer : aluminium
Description : Which metal does not undergo corrosion due to the formation of oxide layer? (1) Copper (2) Iron (3) Aluminium (4) Zinc
Last Answer : Aluminium
Description : The metal, used to galvanise iron to protect it from rusting is (1) Zinc (2) Chromium (3) Lead (4) Antimony
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 : Muntz metal is a/an alloys of (A) Magnesium & tin (B) Ferrous material (C) Lead & tin (D) Copper & zinc
Last Answer : (D) Copper & zinc
Description : Metal in Vitamin B12 is (A) Copper (B) Cobalt (C) Iron (D) Zinc
Last Answer : Answer : B
Description : The metal used to make lightning conductors is – (1) Iron (2) Aluminum (3) Copper (4) Zinc
Last Answer : (3) Copper Explanation: A lightning rod is a metal rod or metallic object mounted on top of a building, electrically bonded using a wire or electrical conductor to interface with ground or "earth" ... wire, instead of passing through the building, where it could start a fire or cause electrocution.
Description : _______ being a very light metal is used for making aircraft bodies . a) aluminium b)copper c)zinc d)iron
Last Answer : a) aluminium
Description : The metal present in insulin is (1) Copper (2) Iron (3) Zinc (4) Magnesium
Description : The metal used to make lightning conductors is (1) Iron (2) Aluminium (3) Copper (4) Zinc
Last Answer : Copper
Description : Brass is made of – (1) copper and tin (2) tin and lead (3) copper and zinc (4) copper, tin and zinc
Last Answer : (3) copper and zinc Explanation: Brass is an alloy of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties. By Comparison, bronze is principally an alloy of copper and tin.
Description : Brass is an alloy of - (1) Lead and tin (2) Zine and copper (3) Antimony, tin and lead (4) Zinc, tin and copper
Last Answer : (2) Zine and copper Explanation: Brass is an alloy of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties. By comparison ... , including alloys with arsenic, phosphorus, aluminium, manganese, and silicon, are commonly termed "brome".
Description : Solder is an alloy of – (1) lead, zinc (2) copper, lead (3) tin, lead (4) sodium, lead
Last Answer : (3) tin, lead Explanation: Tin/lead solders, also called soft solders, are commercially available with tin concentrations between 5% and 70% by weight. The greater the tin concentration, the greater the solder ... at 370 °F or 188 °C and 63/37 Sn/Pb used principally in electrical/electronic work.
Description : Brass is made of (1) copper and tin (2) tin and lead (3) copper and zinc (4) copper, tin and zinc
Last Answer : copper and zinc
Description : Solder is an alloy of (1) lead, zinc (2) copper, lead (3) tin, lead (4) sodium, lead
Last Answer : tin, lead
Description : Brass is an alloy of (1) Lead and tin (2) Zinc and copper (3) Antimony, tin and lead (4) Zinc, tin and copper
Last Answer : Zinc and copper
Description : The cathode of a lead storage battery is made up of – (1) Zinc (2) Lead (3) Lead oxide (4) Manganese dioxide
Last Answer : (2) Lead Explanation: Lead-acid batteries, invented in 1859 by French physicist Gaston Plante, are the oldest type of rechargeable battery. Despite having a very low energy-to-weight ratio ... attractive for use in motor vehicles to provide the high current required by automobile starter motors.
Description : The cathode of a lead storage battery is made up of (1) Zinc (2) Lead (3) Lead oxide (4) Manganese dioxide
Description : According to Coast Guard Regulations (46 CFR), which of the following is an acceptable lining for battery trays containing alkaline batteries? A. Brass B. Lead C. Steel D. Zinc
Last Answer : Answer: C
Description : A metal is exposed to the atmosphere for some time. It becomes coated with green carbonate. The metal must be – (1) silver (2) copper (3) aluminium (4) zinc
Last Answer : (2) copper Explanation: Copper forms a rich variety of compounds with oxidation states +1 and +2, which are often called cuprous and cupric, respectively. It does not react with water, but it ... contrast to the oxidation of iron by wet air, this oxide layer stops the further, bulk corrosion.
Description : German silver, an alloy, does not contain the metal – (1) Nickel (2) Zinc (3) Copper (4) Silver
Last Answer : (4) Silver Explanation: Nickel silver is a copper alloy with nickel and oft6n. zinc. The usual formulation is 60% copper, 20% nickel and 20% zinc. Nickel silver is named for its silvery ... under ASTM B 122) contain significant amounts of zinc, and are sometimes considered a subset of brass.
Description : A COPPER strip is placed in one compartment of a voltaic cell and a wire connects this strip to a piece of metal in the other compartment through a voltmeter. If the voltmeter reads zero, the other piece of metal is: w) zinc x) mercury y) silver z) copper
Last Answer : ANSWER: Z -- COPPER
Description : German silver, an alloy, does not contain the metal (1) Nickel (2) Zinc (3) Copper (4) Silver
Last Answer : Silver
Description : A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be (1) silver (2) copper (3) aluminium(4) zinc
Last Answer : copper
Description : Which of the following metal occurs in free state -------? A. Lead (Answer) B. Iron C. Mercury D. Copper
Last Answer : A. Lead (Answer)
Description : At room temperature, the metal that remains liquid is: (1) Mercury (2) Platinum (3) Lead (4) Zinc
Last Answer : (1) Mercury Explanation: Mercury is the only metal that is a liquid at normal temperatures and pressure. At room temperatureand pressure, mercury neither readily share valence electrons with other atoms nor ... Infact, mercury is the only metal that doesn't form diatomic molecules in the has phase.
Description : Which one of the following metals does not form amalgam? (1) Zinc (2) Copper (3) Magnesium (4) Iron
Last Answer : (4) Iron Explanation: The definition of an amalgam is a mixture of metals and mercury, which can be man-made or can be naturally occurring.
Description : In galvanization, iron is coated with – (1) Copper (2) Zinc (3) Tin (4) Nickel
Last Answer : (2) Zinc Explanation: Galvanization is the process of applying a protective zinc coating to steel or iron, to prevent rusting. The most common method is hot-dip galvanization, in which parts are submerged in a bath of molten zinc.
Description : An electric iron has a heating element made of – (1) Copper (2) Tungsten (3) Nichrome (4) Zinc
Last Answer : (3) Nichrome Explanation: Nichrome is used in electric iron because it has high resistance and it is stable in air when hot. Nichrome wire forms a protective layer of chromium oxide. Chemically it is quite stable and does not combine with other atmospheric gases even in high temperature.