Description : . To improve the machinability of steel, it is generally subjected to (A) Spheroidising (B) Tempering (C) Normalising (D) Annealing
Last Answer : (A) Spheroidising
Description : o improve the machinability of steel, it is generally subjected to (A) Spheroidising (B) Tempering (C) Normalising (D) Annealing
Last Answer : Option A
Description : Cold worked steel parts are normally subjected to (A) Normalising (B) Hardening (C) Annealing (D) Shot peening
Last Answer : (C) Annealing
Description : Softening of hardened steel is done by its (A) Normalising (B) Tempering (C) Annealing (D) Carburising
Last Answer : (B) Tempering
Last Answer : (A) Normalising
Description : The heat treatment process to which castings and the steel balls produced by cold heading are subjected is (A) Tempering (B) Normalising (C) Annealing (D) None of these
Last Answer : (B) Normalising
Description : Normalising does not __________ of a metal. (A) Improve machinability & tensile strength (B) Remove internal stresses (C) Refine the structure (D) Remove strains caused by cold working
Last Answer : Option B
Description : The process of removal of scale formed during hot rolling of steel is termed as (A) Descaling (B) Shot blasting (C) Pickling (D) Skimming
Last Answer : Option C
Description : Machinability of hard alloys and tool steels is improved by (A) Spheroidising (B) Annealing (C) Tempering (D) Normalising
Description : Which of the following heat treatment processes is used for softening the hardened material? (A) Normalising (B) Tempering (C) Annealing (D) None of these
Description : Pick out the correct statement. (A) Hot worked materials are subjected to annealing to remove internal stresses (B) Annealing of steel hardens it slightly (C) Normalising of a material induces stresses (D) Tempering of a material improves ductility & toughness but reduces hardness & brittleness
Last Answer : (D) Tempering of a material improves ductility & toughness but reduces hardness & brittleness Share
Description : The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is (A) Full annealing (B) Bright annealing (C) Patenting (D) None of these
Last Answer : C) Patenting
Description : Pick out the wrong statement. (A) Both annealing and normalising release the internal stresses of the material besides improving the mechanical properties (B) Low carbon steel does not respond to ... are also used for surface hardening (D) Martempering of a material is a hardening process
Description : Reverberatory furnace is used for (A) Roasting/reduction of ores (B) Annealing steel coil (C) Heating air (D) Steel melting
Last Answer : (A) Roasting/reduction of ores
Description : what shot blasting machine?
Last Answer : Visit our Website : shotblastingmachines.inShot blasting machine manufacturer, supplier and exporter of shot blasting machine, shot peening, blast room, and paint booth in India. A Shot blasting machine is an enclosed equipment designed for abrasive blasting for cleaning and preparing rough surface.
Description : Shot blasting process improves the endurance limit of the component. a) True b) False
Last Answer : a) True
Description : The heat treatment process applied to cold formed steel parts is (A) Normalising (B) Tempering (C) Artificial ageing (D) Solution annealing
Last Answer : (D) Solution annealing
Description : Neutral atmosphere is maintained in a/an __________ furnace. (A) Cold rolled steel coil annealing (B) Open hearth (C) Soaking pit (D) Walking beam reheating
Last Answer : (A) Cold rolled steel coil annealing
Description : High purity nitrogen is used in (A) Making protective gas (95% N2 + 5% H2 ) for annealing of cold rolled steel strip coils (B) Fire fighting purposes (C) Both (A) & (B) (D) Neither (A) nor (B)
Last Answer : (C) Both (A) & (B)
Description : Tempering of a material does not improve its (A) Machinability (B) Toughness (C) Internal stress level (D) Softness
Last Answer : A) Machinability
Description : Lead is added to 60:40 brass primarily to improve (A) Machinability (B) Corrosion resistance (C) Fluidity (D) Strength
Last Answer : (A) Machinability
Description : Addition of lead, sulphur and phosphorus to low carbon steel helps in improving its (A) Corrosion resistance (B) Tensile strength (C) Machinability (D) Compressive strength
Last Answer : (C) Machinability
Description : Addition of __________ to steel does not help in improving its machinability. (A) Sulphur (B) Silicon (C) Lead (D) Phosphorous
Last Answer : (B) Silicon
Description : Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an (A) Blast furnace (B) Steam boiler (C) Salt bath furnace (D) Annealing furnace
Last Answer : (C) Salt bath furnace
Description : Heating the Hypo-eutectoid steels to 30°C above the upper critical temperature line, soaking at that temperature and then cooling slowly to the room temperature to form a pearlite & ferrite structure is called (A) Tempering (B) Hardening (C) Annealing (D) Normalising
Description : Consider the following operations: 1. Drilling 2. Blasting 3. Mucking 4. Placing steel 5. Placing concrete The correct sequence of these operations in tunnel construction is (A) 1, 2, 4, 3, 5 (B) 1, 3, 2, 4, 5 (C) 1, 2, 3, 4, 5 (D) 1, 3, 4, 2,
Last Answer : (C) 1, 2, 3, 4, 5
Description : Which of the following is (are) true? (A) Cast iron has poor tensile strength compared to steel (B) Failure of cast iron flywheel is sudden and total (C) Machinability of cast iron flywheel is poor compared to steel flywheel (D) All of the above
Last Answer : (D) All of the above
Description : The ability of tool steel to resist softening at high temperatures is termed as __________ hardness. (A) Red (B) Extended (C) Super (D) Extreme
Last Answer : (C) Super
Description : Pick out the wrong statement. (A) Tin can be readily and very easily drawn into very fine wire (B) Tin can be severely cold worked without the necessity of annealing due to its low recrystallisation temperature (C) Tin exists in two allotropic forms
Last Answer : (A) Tin can be readily and very easily drawn into very fine wire
Description : Strain hardening effect in metals subjected to cold working is due to the __________ mechanism. (A) Slip (B) Fracture (C) Winning (D) Dislocation
Last Answer : (D) Dislocation
Description : Strain hardening effect in a metal subjected to cold working is due to the __________ mechanism. (A) Fracture (B) Dislocation (C) Slip (D) Twinning
Last Answer : (C) Slip
Description : Hardened steel is softened by (A) Normalising (B) Tempering (C) Annealing (D) Carburising
Description : Nitriding of steel is a process for (A) Case hardening (B) Spheroidising (C) Normalising (D) Annealing
Last Answer : (A) Case hardening
Description : Pick out the wrong statement. (A) Addition of methane to the furnace atmosphere reduces decarburising by hydrogen (B) Nitrogen in presence of steam decor-burises high carbon steel, whereas hydrocarbon ... the metal surface) cause nitride formation with increase in surface hardness (D) None of these
Last Answer : (D) None of these
Description : Protective gas used in the annealing furnace for steel coil comprises of (A) 95% N2 + 5% H2 (B) 5% H2 + 9% N2 (C) 100% CO (D) 100% H2
Last Answer : (A) 95% N2 + 5% H2
Description : __________ of hard alloy and tool steel is done to make it easily machinable. (A) Case carburising (B) Tempering (C) Normalising (D) Annealing
Description : __________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working. (A) Solid solution hardening (B) Screw dislocation (C) Strain ageing (D) Twinning
Last Answer : (C) Strain ageing
Description : Addition of nickel to copper improves its (A) Machinability (B) Ductility (C) Strength (D) Hardness
Last Answer : (D) Hardness
Description : Blasting of tri-nitro-toluene (TNT) is done by mixing it with ammonium (A) Nitrate (B) Sulphate (C) Carbonate (D) Chloride
Last Answer : (A) Nitrate
Description : Notched bar test is used for testing the __________ of a material. (A) Impact strength (B) Endurance limit (C) Machinability (D) Corrosion resistance
Last Answer : (A) Impact strength
Description : Plastics as a material of construction suffer from the drawback of low (A) Machinability (B) Density (C) Strength (D) Plastic deformatio
Description : Pick out the wrong statement about the machinability of metals. Machinability of a metal (A) Decreases with increase in strain hardening tendencies (B) Decreases with increase in hardness, in general (C) Depend on the composition, microstructure and physical & mechanical
Description : __________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength. (A) Lancing (B) Shot peening (C) Slugging (D) Spinning
Last Answer : (B) Shot peening
Description : Best Stereo Blasting Songs For The Car?
Last Answer : I love blasting Led Zep while driving.
Description : How to stop hidden ads from blasting through the speakers while surfing online?
Last Answer : answer:Honestly, stop visiting sites that produce those. They are more than likely decking your computer down with spyware everytime you visit them. Legitimate sites will not use ad's such as ... more than likely you have spyware on your computer from some previous excursion to a questionable site.
Description : Why do some people drive up to a convenience store, turn off their vehicle, leave the sound system blasting and go inside?
Last Answer : because their probably between the ages of 16 and 30 and thier hearing hasn’t begun to desolve because of the constant loud music.
Description : Is corn cob blasting good for taking rust off of a car?
Last Answer : As a bit loosely related random information, I know they use ground walnut shells to clean bronze statues in the park.
Description : What is Sand Blasting Machine?
Last Answer : Sand blasting machine is primarily used for cleaning the surface of any metal or non-metal which is damaged by rusting of metal, corrosion damage which is the major reason for the destruction ... the surface of a particular metal or non-metal material.visit our website : sandblastingmachine.in
Description : Failure of a bulb to produce a marketable flower following floral initiation is: a. Disbudding b. Flower blasting c. Damping off d. Dieback
Last Answer : Flower blasting