Introduction to Pro / Engineer Wildfire Pro/Engineer Wildfire is a powerful program used to create complex designs with great precision. The design intent of any three dimensional model or an assembly is defined by its specification and its use. You can use the powerful tools of Pro/Engineer Wildfire to capture the design intent of any complex model by incorporating intelligence
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Gas Welding Process: Gas welding is a fusion process in which fusion is obtained by completely melting the joint. The heat required for heating and melting the parent and filler metal is obtained by the combustion of a fuel gas with oxygen. Fuel gas used in welding can be acetylene, propane, hydrogen, butane and natural gas. Of these, acetylene is
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(1) Pitot tube is used for measurement of (a) Pressure (b) Temperature (c) Discharge (d) Velocity Ans.: (d) Velocity (2) Slow plastic deformation of material under constant stress is (a) Creep (b) Fatigue (c) Endurance (d) Elastic deformation Ans.: (a) Creep (3) Mass balancing is done to (a) Avoid flutter (b) Increase bending stress (c) Reduce drag (d) Distributing mass
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1. Normalizing operation is carried out in a) Water b) Oil c) Air d) Furnace Ans.: c) Air 2. The main purpose of heat treatment of steels is to change the a) Chemical composition b) Mechanical properties c) Surface finish d) Physical properties Ans.: b) Mechanical properties 3. Which of the following is a non-destructive test
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1. Draft on pattern means b) Allowance for machining c) Locating pad d) Compensate for stripping e) Compensation for shrinkage Ans.: d) Compensate for stripping 2. Slag inclusion in the casting is a a) Surface defects b) Internal defect c) Crack d) Notch Ans.: a) Surface defects 3. Fettling is an operation performed a) Before casting b) After
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1. Seamless rings are made by the process a) Super-plastic forming b) Mandrel forging c) Ring rolling d) Diffusion bonding Ans.: c) Ring rolling 2. Internal defects in material is detected by a) Fluorescent penetrate check b) Red dye check c) Ultrasonic d) Eddy current check Ans.: c) Ultrasonic 3. Smaller the grains in steel a) Higher the
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Solar radiation received on earth in just one hour is more than what the whole world’s population consumes in one year. 3,850,000 Exajoules (EJ) amount of solar energy received by Earth Surface per year. In 2011, worldwide primary energy consumptions was 550 EJ. 7 hours of Solar Energy at Deserts can meet annual global energy requirement. Note: 1 EJ =
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Inspection of Castings: A large number of methods have been developed to inspect castings for defects that may occur during their production. Such inspections may be in process inspections or finished product inspections. In process inspections are carried out before a lot of castings have been completed to detect any flaws that may have occurred in the process so that
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Sand Casting Defects: • Production of castings involves a large number of steps including casting design, pattern making, moulding, melting, pouring, shake out, fettling, inspection and finishing. • It is not uncommon for one or more of these steps to be performed unsatisfactorily due to use of defective material or equipment, carelessness of the operator or lack of skill. •
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Sand Casting Defects: • Production of castings involves a large number of steps including casting design, pattern making, moulding, melting, pouring, shake out, fettling, inspection and finishing. • It is not uncommon for one or more of these steps to be performed unsatisfactorily due to use of defective material or equipment, carelessness of the operator or lack of skill. •
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