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 : 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 : 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 : 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 : Babbitt metal used for bearings is a _________base alloy. (A) Tin (B) Lead (C) Aluminium (D) Copper
Last Answer : (A) Tin
Description : The part of a fuse that melts and opens the circuit is made of _____________. A. copper and antimony B. steel and babbitt C. aluminum or beryllium alloy D. zinc or an alloy of tin and lead
Last Answer : Answer: D
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 : 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 : Choose a statement that correctly defines the term AMALGAM: A. Amalgam is a metallic powder composed of silver, tin, copper and zinc B. Amalgam is an alloy of two or more metals that have been dissolved in ... is mixed with mercury E. Amalgam is an alloy of two or more metals, one of them is tin
Last Answer : C. Amalgam is an alloy of two or more metals, one of them is mercury
Description : An alloy consisting mainly of tin and lead is called: w) brass x) bronze y) pewter z) chrome
Last Answer : ANSWER: Y -- PEWTER
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 : Which one of the following metals is essential to the structure and functioning of hemoglobin? w) copper x) magnesium y) tin z) iron
Last Answer : ANSWER: Z -- IRON
Description : The chemical symbol for antimony is: w) An x) Sn y) Sb z) At
Last Answer : ANSWER: Y -- Sb
Description : Which of the following reactions involve NEITHER oxidation nor reduction? w) burning antimony in chlorine x) decomposition of potassium chlorate y) reaction of sodium with water z) reaction of potassium hydroxide with nitric acid
Last Answer : ANSWER: Z -- REACTION OF POTASSIUM HYDROXIDE WITH NITRIC ACID
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 : Gun metal is an alloy of (A) Nickel, tin and copper (B) Copper, tin and zinc (C) Copper, phosphorus and nickel (D) Manganese, phosphorus and nickel
Last Answer : (B) Copper, tin and zinc
Description : Bell metal is an alloy of (A) Copper & zinc (B) Copper & tin (C) Copper & nickel
Last Answer : (B) Copper & tin
Description : Which of the following metals is obtained from its most common ore using an electrolytic process? w) nickel x) tin y) aluminum z) manganese
Last Answer : ANSWER: Y -- ALUMINUM
Description : Sphalerite is a primary ore of which of the following metals? w) zinc x) tin y) copper z) iron
Last Answer : ANSWER: W -- ZINC
Description : What is the atomic number of Antimony? w) 33 x) 51 y) 85 z) 122
Last Answer : ANSWER: X -- 51
Description : One metal dissolved in another is called w) an alloy x) an assay y) a mineral z) a ceramic
Last Answer : ANSWER: W -- AN ALLOY
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 : Bronze is an alloy of – (1) Copper & tin (2) Copper & zinc (3) Copper & iron (4) Iron & nickel
Last Answer : (1) Copper & tin Explanation: Bronze is an alloy consisting primarily of copper, commonly with about 12% tin and often with the addition of other metals (such as aluminium, manganese, nickel or zinc ... produce a range of alloys that may be harder than copper alone, or have other useful properties.
Description : Fuse wire is made of an alloy of ______. (1) Lead and Copper (2) Tin and Copper (3) Tin and Lead (4) Copper and Silver
Last Answer : (3) Tin and Lead Explanation: The material used for making fuse element has a low melting point such as tin, lead, or zinc.
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 : Bronze is an alloy of – (1) Copper and Zinc (2) Tin and Zinc (3) Copper and Tin (4) Iron and Zinc
Last Answer : (3) Copper and Tin Explanation: Bronze is a metal alloy consisting primarily of copper, usually with tin as the main additive. It is hard and tough, and it was particularly significant in ... the more inclusive term "copper alloy" instead. Historically the term latten was used for such alloys.
Description : Bronze is an alloy of (1) Copper & tin (2) Copper & zinc (3) Copper & iron (4) Iron & nickel
Last Answer : Copper & tin
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
Description : Solder is an alloy of (1) lead, zinc (2) copper, lead (3) tin, lead (4) sodium, lead
Last Answer : tin, lead
Description : Bronze is an alloy of (1) Copper and Zinc (2) Tin and Zinc (3) Copper and Tin (4) Iron and Zinc
Last Answer : Copper and Tin
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 : Which of the following substances would be the best choice to neutralize sulfuric acid? w) sodium hydroxide x) silicon dioxide y) copper metal z) phosphorus pentoxide
Last Answer : ANSWER: W -- SODIUM HYDROXIDE
Description : A metal that does NOT occur native in the earth is w) copper x) gold y) sodium z) silver
Last Answer : ANSWER: Y -- SODIUM
Description : The bearing material that is most susceptible to corrosion is : Q. Babbit R. Copper-lead S. Aluminium T. Aluminium-babbit
Last Answer : Q. Babbit
Description : Which of the following elements would form a covalent bond with Bromine? w) Calcium x) Aluminum y) Oxygen z) Tin
Last Answer : ANSWER: Y -- OXYGEN
Description : Teflon is produced by polymerizing ethylene which hydrogen substituted with one of the following elements: w) teflinium x) tin y) fluorine z) carbon
Last Answer : ANSWER: Y -- FLUORINE
Description : Which of the following refers to the scattering of light by colloidal particles? w) Rutherford effect x) Tyndall effect (pron: tin-dahl) y) Thompson effect z) none of these
Last Answer : ANSWER: X -- TYNDALL EFFECT
Description : Pick out the wrong statement. (A) Bronze is an alloy of copper & tin (B) Brass is an alloy of copper & zinc (C) The alloy named 'German silver' does not contain any silver (D) The ability of a material to fracture without appreciable deformation is called its ductility
Last Answer : (D) The ability of a material to fracture without appreciable deformation is called its ductility
Description : State the composition and properties of Babbit metal.
Last Answer : Composition: Sn = 88% Sb = 8% Cu =4% Properties: i) It is silvery white, soft metal alloy. ii) It has very low coefficient of friction. iii) It has very high corrosion and wear and tear ... is used for making engine bearing. ii) It is also used as a common bearing metal in cast iron boxes.
Description : Give the composition, properties and application of Babbit metal.
Last Answer : Composition: Sn = 88% Sb = 8% Cu =4% Properties: i) It is silvery white, soft metal alloy. ii) It has very low coefficient of friction. iii) It has very high corrosion and wear and tear ... used for making engine bearing. ii) It is also used as a common bearing metal in cast iron boxes.
Description : The addition of antimony in tin-based alloys improves its (A) Rupture strength and hot hardness (B) Impact strength and bonding strength (C) Deformation resistance (D) Wear resistance
Last Answer : (C) Deformation resistance
Description : Cinnabar, pyrite and galena are minerals which consist of one or more metals combined with the same element. Which one of the following is the element that is common to all three of these minerals? Is it: w) iron x) copper y) sulfur z) sodium
Last Answer : ANSWER: C-- SULFUR
Description : Which of the following statements is correct? I. German silver is an alloy of silver, copper and zinc II. There is no zinc in brass III. Bronze is an alloy of copper and tin (a) I, II, and III (b) Only III (c) I and III (d) I and II
Last Answer : Ans:(b)
Description : Fuse wire is made of an alloy of – (1) Tin and Lead (2) Tin and Copper (3) Lead and Copper (4) Copper and Silver
Last Answer : (1) Tin and Lead Explanation: The common material used as fuse wire is an alloy of tin and lead (63% tin and 37% lead). Fuse wires provide over current protection of an electrical circuit ... wire or strip that melts when too much current flows through it, thereby interrupting the flow of current.
Description : A fuse wire is made of: (1) an alloy of tin and copper (2) an alloy of tin and lead (3) an alloy of tin and aluminium (4) an alloy of nickel and chromium
Last Answer : (2) an alloy of tin and lead Explanation: Electric fuse wire is an alloy made of tin (63 % lead 37 %. The cross sectional area determines the melting point at a certain current. Alloys (e.g. ... resulting combination of good conductivity (due to the tin) with a low melting point due to the lead).
Description : Since fuse elements are made of zinc or any alloy of tin and lead, the melting point of the fuse element must be _____________. A. higher than that of copper B. lower than that of copper C. equal to that of copper D. reached when the conductor it is protecting becomes 'white hot.'
Last Answer : Answer: B
Description : Brass is an alloy of (A) Nickel and tin (B) Copper and zinc
Last Answer : (B) Copper and zinc
Description : Bronze is an alloy of copper and (A) Lead (B) Tin (C) Nickel (D) Zinc
Last Answer : (B) Tin
Description : Constantan used in thermocouples is an alloy of (A) Iron & copper (B) Copper & aluminium (C) Lead & tin (D) None of these