Description : Which of the following is not an alloy of copper? (A) Muntz metal (B) Admiralty gun metal (C) German silver (D) Pewter metal
Last Answer : (D) Pewter metal
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 : Condenser tubes are not made of (A) Cartridge brass (B) Muntz brass (C) Wood metal (D) Aluminium brass alloy
Last Answer : (C) Wood metal
Description : Which of the following alloy is used in making magnet? (1) Duralumin (2) Stainless steel (3) Elniko (4) Magnalium
Last Answer : (3) Elniko Explanation: A magnetic alloy is a combination of various metals from the periodic table that contains at least one of the three main magnetic elements: iron (Fe), nickel (Ni), and cobalt (Co).
Description : Magnalium is an alloy of-------? A. Magnesium and Lead B. Aluminium and Zinc C. Aluminium and Magnesium (Answer) D. Aluminium and Mercury
Last Answer : C. Aluminium and Magnesium (Answer)
Description : Magnalium is an alloy of (1) Aluminium and Magnesium (2) Magnesium and Tin (3) Aluminium and Zinc (4) Manganese and Magnesium
Last Answer : Aluminium and Magnesium
Description : Which of the following alloy is used in making magnet ? (1) Duralumin (2) Stainless steel (3) Elniko (4) Magnalium
Last Answer : Elniko
Description : Stellite is a __________ material. (A) Ferrous (B) Ceramic (C) Cemented carbide (D) Non-ferrous cast alloy cutting tool
Last Answer : (D) Non-ferrous cast alloy cutting tool
Description : __________ is the trade name assigned to a non-ferrous cast alloy composed of cobalt, chromium & tungsten. (A) Stellite (B) High speed steel (C) Cermet (D) Alnico
Last Answer : Option A
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 : Out of the following, the alloy which has equal percentage of constituents, is (A) White metal (B) Gun metal (C) Duralumin (D) Constantan
Last Answer : Option D
Description : Brazing is the joining of metals (A) Without melting the base metal (B) With a non-ferrous filler (C) Both (A) & (B) (D) Neither (A) nor (B)
Last Answer : Option C
Description : Oxide layer formed on the non-ferrous metal surface after its annealing is (A) Removed by acid pickling (B) Hammered into the surface (C) Removed with coarse emery cloth
Description : How might you separate ferrous metal containers from non-ferrous containers at a recycling plant.?
Last Answer : This is one of the easiest separations. The ferrous containerswill be attracted to a magnet and the rest won't.
Description : Which is a non-ferrous metal?
Last Answer : Aluminium
Description : Which of the following alloy steels is the most suitable for making gun barrels and projectiles? (A) Tungsten steel (B) Molybdenum steel (C) Nickel-chrome steel (D) Cobalt steel
Last Answer : (C) Nickel-chrome steel
Description : What is Magnalium Powder?
Last Answer : Magnalium is an aluminium alloy with 5% magnesium and 95% aluminium. Magnalium is expensive than aluminium because of its low density and high strength. Magnalium powder burns with a crackling sound. It is used for making balance beams and other light instruments.
Description : The element of Electric stove is made of (1) Copper (2) Invar (3) Magnalium (4) Nicrome
Last Answer : (4) Nicrome Explanation: Most heating elements use nichrome 80/20 (80% nickel, 20%chromium) wire, ribbon, or strip. Nichrome 80/20 is an ideal material, because it has relatively high resistance.
Description : Metalloid is (A) Highly electronegative in nature (B) An element which exhibits the properties of both metal & non-metal (C) An alloy (D) All (A), (B) and (C)
Last Answer : (B) An element which exhibits the properties of both metal & non-metal
Description : Metalloid is (A) An element, which exhibits the properties of both metal & non metal (B) Highly electronegative in nature (C) An alloy (D) All (A), (B) & (C)
Last Answer : (A) An element, which exhibits the properties of both metal & non metal
Description : Presence of SO2 in furnace gases attacks the ferrous metal by way of (A) Accelerating the rate of scaling (B) Causing metal embrittlement (C) Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Alloy used in the manufacture of gun bar- rels?
Last Answer : Gun metal
Description : A homogenous mixture of two or more metal or a metal and non-metal is known as _____. a) alloy b)element c)mineral d)compound
Last Answer : a) alloy
Description : Identify the alloy containing a non-metal as a constituent in it. (1) Bronze (2) Invar (3) Steel
Last Answer : Steel
Description : A ferrous metal is (A) Cast iron (B) Wrought iron (C) Steel (D) All the above
Last Answer : Answer: Option D
Description : State the uses (two each) of the following construction materials: i) Soda lime glass ii) Ferrous metal
Last Answer : i) Soda lime glass: a) Used in window and plate glass b) Glass blocks c) Bottles d) Inexpensive table wares e) Fluorescent and incandescent light bulbs ii) Ferrous metal: a) CI (Cast Iron) ... GI sheets f) Carbon steel is used for making tools g) Weld meshes are used for partition and fencing
Description : Generally __________ are subjected to galvanising (i.e., zinc coating). (A) Non-ferrous metals (B) Non-metals (C) Low carbon steels (D) Stainless steel
Last Answer : (C) Low carbon steels
Description : Galvanising is generally done on (A) Non-ferrous metals (B) Low carbon steel (C) Stainless steel (D) Cast iron
Last Answer : (B) Low carbon steel
Description : Nickel as a material of construction (A) Is used as an alloying element for both ferrous & non-ferrous alloys (B) Is paramagnetic below 415° C (its Curie temperature) (C) Diamagnetic (D) Has a body centred cubic (bcc) crystal lattice structure
Last Answer : (A) Is used as an alloying element for both ferrous & non-ferrous alloys
Description : Non-ferrous metals and hard steels do not exhibit a definite yield point, when pulled in the testing machine and hence for these cases, a better measure of their elastic properties is defined by the __________ stress. (A) Ultimate (B) Yield point (C) Proof (D) None of these
Last Answer : (C) Proof
Description : __________ furnace is generally used in the non-ferrous foundries. (A) Direct arc (B) Indirect arc (C) Resistance (D) Induction
Last Answer : (B) Indirect arc
Description : Non-ferrous alloys used for making cutting tools need not have high (A) Abrasion resistance (B) Toughness (C) Red hardness (D) Cutting speed
Last Answer : (C) Red hardness
Description : Which of the following is not a copper based alloy with nickel? (A) German silver (B) Monel metal (C) Inconel (D) Constantan
Last Answer : (C) Inconel
Description : Which of the following alloys does not contain nickel? (A) Chlorinet - 2 alloy (B) Monel (C) Inconel (D) Babbitt metal
Last Answer : (D) Babbitt metal
Description : Which of the following alloys does not contain nickel? (A) Chloro, et-2 alloy (B) Monel (C) Inconel (D) Babbitt metal
Description : Babbitt metal is not a (A) Tin base alloy (B) White metal (C) Lead base alloy (D) Pure metal
Last Answer : (D) Pure metal
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 is not an alloy of tin? (A) White-bearing metal (B) Pewter type metal (C) Soft solder (D) German silver
Last Answer : (D) German silver
Description : Which of the following is not a nickel based alloy? (A) Inconel (B) Hastelloys (C) Nimonics (D) Babbitt metal
Description : Which of the following is universally employed as the low expansion metal in the bimetallic thermometer, which is an iron-nickel alloy containing 36% nickel and has very low co-efficient of expansion (1/20th of ordinary metals) ? (A) Invar (B) Constantan (C) Chromel (D) Alumel
Last Answer : (A) Invar
Description : Which of the following is a light alloy? (A) Monel metal (B) Dow metal (C) German silver (D) Babbitt meta
Last Answer : (B) Dow metal
Description : Babbitt metal used for bearings is a _________base alloy. (A) Tin (B) Lead (C) Aluminium (D) Copper
Last Answer : (A) Tin
Description : Monel metal is an alloy of (A) Molybdenum and nickel (B) Nickel and copper (C) Molybdenum and aluminium (D) Molybdenum and zinc
Last Answer : (B) Nickel and copper
Description : A metallic alloy in which one of the constituent metal is __________, is called an amalgam. (A) Zinc (B) Mercury (C) Lead (D) Tin
Last Answer : (B) Mercury
Description : The electrical conductivity of a __________ decreases with rise in temperature. (A) Metal/alloy (B) Semi-conductor (C) Dielectric (D) None of these
Last Answer : (A) Metal/alloy
Description : Bell metal is an alloy of (A) Copper & zinc (B) Copper & tin (C) Copper & nickel
Last Answer : (B) Copper & tin
Description : A metallic alloy in general as compared to their pure metal components is (A) More corrosion resistant (B) Having higher melting point (C) Having lower hardness, reactivity and fusibility (D) Having lower electrical conductivity
Last Answer : (A) More corrosion resistant
Description : Brazing filler metal used for joining steel plates (A) Melts below the melting points of base metals (B) Melts below 300°C (C) Is copper phosphorous alloy
Last Answer : (A) Melts below the melting points of base metals
Description : With increase in temperature, the electrical conductivity of a __________ decreases. (A) Semi-conductor (B) Metal or alloy (C) Dielectric (D) None of these
Last Answer : (A) Semi-conductor