Mechanical Engineering MCQ with Answers
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Which shielding gas is commonly used for GMAW of a 20 mm thick low carbon steel?
Which shielding gas is commonly used for GMAW of a 20 mm thick low carbon steel?
Open 386Why PWHT is used?
Why PWHT is used?
Open 387Which of the following statements is not correct when referring to fully austenitic stainless steels?
Which of the following statements is not correct when referring to fully austenitic stainless steels?
Open 388In MIG/MAG solid wire welding uses which polarity?
In MIG/MAG solid wire welding uses which polarity?
Open 389Pinch effect gives
Pinch effect gives
Open 390An MMA electrode which is classified as an E7024 according to AWS is
An MMA electrode which is classified as an E7024 according to AWS is
Open 391In BS EN 287-1, an all positional qualification may be obtained by welding a pipe
In BS EN 287-1, an all positional qualification may be obtained by welding a pipe
Open 392An electrode is classified to BS EN 499 as E 353B. What does B mean
An electrode is classified to BS EN 499 as E 353B. What does B mean
Open 393A pipeline is to be laid across the country. Which of the following methods would normally be used to detect root defects?
A pipeline is to be laid across the country. Which of the following methods would normally be used to detect root defects?
Open 394Which material not required preheat?
Which material not required preheat?
Open 395A short transverse tensile test (as TRA Test) will give?
A short transverse tensile test (as TRA Test) will give?
Open 396Which of the following may lead to distorton?
Which of the following may lead to distorton?
Open 397Weldments in carbon manganese steels made using a higher than specified heat input may show:
Weldments in carbon manganese steels made using a higher than specified heat input may show:
Open 398How we precise the energy of XRays?
How we precise the energy of XRays?
Open 399Hard stamping of some pressure vessels materials may give cause
Hard stamping of some pressure vessels materials may give cause
Open 400Plasma cutting can be applied to
Plasma cutting can be applied to
Open 401Which of the following cannot be detected by Penetrant testing?
Which of the following cannot be detected by Penetrant testing?
Open 402Unit of heat input
Unit of heat input
Open 403Inspection for hydrogen cracking is often specified to be done between 48 to 72 hrs after completion of the weld, this is because?
Inspection for hydrogen cracking is often specified to be done between 48 to 72 hrs after completion of the weld, this is because?
Open 404At what level is H2 considered to be more critical in cracking
At what level is H2 considered to be more critical in cracking
Open 405In general terms which of the following would require the highest preheat if all other factors were the same as per ISO/BS EN 1011?
In general terms which of the following would require the highest preheat if all other factors were the same as per ISO/BS EN 1011?
Open 406Which of the following microstructure is critical to the likely formation of hydrogen cracks?
Which of the following microstructure is critical to the likely formation of hydrogen cracks?
Open 407The correct joint preparaton is very important since it decides the volume of weld metal to be used,,high volumes of weld metal deposited can
The correct joint preparaton is very important since it decides the volume of weld metal to be used,,high volumes of weld metal deposited can
Open 408Basic electrodes are often sold vacuum packed. The reason is?
Basic electrodes are often sold vacuum packed. The reason is?
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