Description : Spark plugs, ignition tubes and electrodes are made of nickel __________ alloys. (A) Beryllium (B) Manganese (C) Copper (D) Iron
Last Answer : (B) Manganese
Description : Alinco, which is a aluminium-cobalt-nickel steel, is used for making (A) Surgical instruments (B) Powerful magnets (C) Chemical equipments (D) Boiler tubes
Last Answer : (B) Powerful magnets
Description : The high expansion metal normally used in the bimetallic thermometer is __________ temperature measurement. (A) Brass for low (B) Nickel alloys for high (C) Both 'a' & 'b' (D) Aluminium for all
Last Answer : (C) Both 'a' & 'b'
Description : Locomotive boiler has a) 137 fire tubes and 44 superheated tubes b) 147 fire tubes and 34 superheated tubes c) 157 fire tubes and 24 superheated tubes d) 167 fire tubes and 14 superheated tubes
Last Answer : c) 157 fire tubes and 24 superheated tubes
Description : For spinning viscose rayon, the extrusion spinnerettes are made of (A) Platinum or gold alloys (B) High carbon steel (C) Aluminium (D) Nickel
Last Answer : (A) Platinum or gold alloys
Description : Nickel base alloys with __________ are known as monel metal. (A) Zinc (B) Tin (C) Copper (D) Molybdenum
Last Answer : (C) Copper
Description : For platinum thermocouples, lead wires are made of (A) Copper & copper-nickel alloys (B) Copper & iron (C) Iron & nickel (D) Tin & nickel
Last Answer : (A) Copper & copper-nickel alloys
Description : Nickel (76%) and chromium (15%) alloys are termed as (A) Inconel (B) Monel (C) Aluminium bronzes (D) Brass
Last Answer : (A) Inconel
Description : Tubes of multiple effect evaporator used for concentration of sugar cane juice are made of (A) Nickel (B) Copper (C) Stainless steel (D) Brass
Last Answer : (B) Copper
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 : Fire refining process is employed in case of (A) Tin (B) Copper (C) Zinc (D) Aluminium
Description : Refined acetic acid storage vessel are made of (A) Copper (B) Aluminium (C) High carbon steel (D) Nickel
Last Answer : (B) Aluminium
Description : For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of (a) copper (b) aluminium (c) steel (d) brass
Last Answer : Ans: c
Description : __________ alloys have the highest specific strength of all the structural materials out of the following. (A) Magnetic steel (B) Titanium (C) Chromium (D) Magnesium
Last Answer : (B) Titanium
Description : Thermometer bulb & capillary in case of mercury filled pressure spring expansion thermometer is normally made of __________ as mercury does not amalgamate with it. (A) Copper (B) Copper alloys (C) Stainless steel (D) Monel
Last Answer : (C) Stainless steel
Description : Which of the following is the most suitable material of construction for the condenser tubes, where the cooling medium is brine (salty water)? (A) Aluminium (B) Copper (C) Titanium (D) Stainless steel
Last Answer : Option C
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).
Last Answer : an alloy of tin and lead
Description : Anodic material used for the cathodic protection of underground buried steel pipeline is (A) Nickel or copper (B) Zinc or magnesium (C) Bronze (D) Brass
Last Answer : (B) Zinc or magnesium
Description : Which of the following materials may prove unsuitable for handling acetic acid (glacial & anhydrous) at 40°C? (A) Silicone rubber, teflon, porcelain and wood (B) Nickel, monel, stainless steel and graphite (C) Aluminium, copper, high silicon iron (D) Brass, cast iron, mild steel and tin
Last Answer : (D) Brass, cast iron, mild steel and tin
Description : Which of the following commercial metals is most abundantly found in India? (A) Copper (B) Aluminium (C) Nickel (D) Zinc
Description : German silver in an alloy of (A) Copper, nickel and zinc (B) Copper, aluminium and silver (C) Silver, zinc and aluminium (D) Silver, nickel and zinc
Last Answer : (A) Copper, nickel and zinc
Description : Duralumin is an alloy of (A) Aluminium, copper and manganese (B) Aluminium, nickel and silicon (C) Aluminium and nickel (D) None of these
Last Answer : (A) Aluminium, copper and manganese
Description : Softness of silver can be converted into hardness by alloying it with small quantity of (A) Copper & nickel (B) Zinc (C) Aluminium (D) Tin
Last Answer : (A) Copper & nickel
Description : Constituents of stellite are (A) Zinc, copper and nickel (B) Cobalt, chromium and tungsten (C) Zinc, aluminium and nickel (D) Nickel, cobalt and vanadium
Last Answer : (B) Cobalt, chromium and tungsten
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 : Stainless steel contains (A) Chromium and nickel (B) Copper (C) Aluminium (D) Vanadium
Last Answer : (A) Chromium and nickel
Description : Which of the following material of construction may be recommended by a chemical engineer for handling a gaseous chlorine (dry or wet) stream in a fluid flow system? (A) High silicon iron, silicon rubber ... Mild steel and stainless steel (C) Cast iron, tin and aluminium (D) Copper, nickel and Monel
Last Answer : (A) High silicon iron, silicon rubber, Kel-F and Teflon
Description : Constituents of stellite are (A) Zinc, copper & nickel (B) Cobalt, chromium & tungsten (C) Zinc, aluminium & nickel (D) Nickel, cobalt & vanadium
Last Answer : (B) Cobalt, chromium & tungsten
Description : Which of the following materials does not form adherent oxide film on surface? (A) Copper (B) Nickel (C) Aluminium (D) Gold & silver
Last Answer : (D) Gold & silver
Description : Principal alloying element in Elinvar (used for making hair springs for watches) is (A) Copper (B) Aluminium (C) Nickel (D) Zinc
Description : Presence of even 0.005% of __________ in copper makes it highly brittle, rendering it useless for wire-drawing. (A) Oxygen (B) Arsenic (C) Antimony (D) Bismuth
Last Answer : (D) Bismuth
Description : Presence of even very minute amount (say 0.1%) of __________ in copper, reduces its electrical conductivity very seriously. (A) Bismuth (B) Arsenic (C) Antimony (D) Both (B) and (C)
Last Answer : (D) Both (B) and (C)
Description : Coloured glass is obtained by mixing of colored salts. Addition of __________ oxide is done to impart greenish blue color to the glass. (A) Chromium (B) Arsenic (C) Copper (D) Manganese
Description : Zinc is not used (A) For producing zinc base die casting alloys (B) In its oxide form as pigments (C) As anode for corrosion prevention in boiler (D) As an alloying element in various bronzes
Last Answer : (D) As an alloying element in various bronzes
Description : Which of these is a stationary boiler? • Locomotive boiler • Marine boiler • Mobile boiler • Babcock Wilcox boiler
Last Answer : • Babcock Wilcox boiler
Description : Which of the following boiler is best suited to meet the fluctuating demand of steam....... A locomotive boiler. B Lancashire boiler C Cornish boiler D Babcock and wilcox boiler
Last Answer : A locomotive boiler.
Description : Which of the following is a water tube boiler........ A]Locomotive boiler B]Lancashire boiler C]Cornish boiler D]Babcock and wilcox boiler
Last Answer : in a Truss structure and nature of reactive force is in the nature of
Description : Which of the following boiler is best suited to meet the fluctuating demand of steam....... A]Locomotive boiler. B]Lancashire boiler C]Cornish boiler D]Babcock and wilcox boiler
Last Answer : A]Locomotive boiler.
Description : Dilute sulphuric acid is transported in __________ pipes. (A) Mild steel (B) Lead (C) Copper (D) Special alloys
Last Answer : (B) Lead
Description : In which of the following all three are macronutrients? (a) Molybdenum, magnesium, manganese (b) Nitrogen, nickel, phosphorus (c) Boron, zinc, manganese (d) Iron, copper, molybdenum
Last Answer : (d) Iron, copper, molybdenum
Description : Which of the following is an important element of stainless steel. w) chromium x) magnesium y) copper z) nickel
Last Answer : ANSWER: W -- CHROMIUM
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 : Nickel (56%) and molybdenum (17%) alloys are called (A) Monel (B) Hastelloy C (C) Inconel (D) Bronzes
Last Answer : (B) Hastelloy C
Description : Which of the following is not an alloy of nickel and chromium? (A) Inconel (B) Hastelloy (C) Nimonic alloys (D) Duralumin
Last Answer : (D) Duralumin
Description : Monel alloy is (A) The costliest of all the alloys of nickel (B) Not suitable for making kitchen utensils (C) Used for making steam valves and turbine blades as it resists steam attack at high temperature (D) Not used in cast and wrought forms
Last Answer : (C) Used for making steam valves and turbine blades as it resists steam attack at high temperature
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 : Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are (A) Cobalt, chromium & tungsten (B) Cobalt, chromium & nickel (C) Molybdenum, tungsten & chromium (D) Cobalt, zirconium & molybdenum
Last Answer : : Option A
Description : Steam condenser tubes are made of admiralty brass, in which percentage of zinc & copper are __________ respectively. (A) 70 & 30 (B) 30 & 70 (C) 50 & 50 (D) 90 & 10
Last Answer : (A) 70 & 30