Mechanical Engineering MCQ with Answers
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What is the greatest advantage of radiographic inspection over ultrasonic inspection?
What is the greatest advantage of radiographic inspection over ultrasonic inspection?
Open 26Which of the following defects are most difficult to size correctly when ultrasonically testing a weld?
Which of the following defects are most difficult to size correctly when ultrasonically testing a weld?
Open 27Electrodes classified as E43 22(B EN 499) and E6010 (AWB A5.1) would usually
Electrodes classified as E43 22(B EN 499) and E6010 (AWB A5.1) would usually
Open 28Lamellar tearing can be detected by which of the following NDT method?
Lamellar tearing can be detected by which of the following NDT method?
Open 29At what level the hardness value a problem when trying to minimize the risk of H2 cracking?
At what level the hardness value a problem when trying to minimize the risk of H2 cracking?
Open 30Which of the following electrode types will produce the lowest level of hydrogen?
Which of the following electrode types will produce the lowest level of hydrogen?
Open 31Assuming the same material and the welding procedure were used, which of the following would require the highest preheat?
Assuming the same material and the welding procedure were used, which of the following would require the highest preheat?
Open 32To prevent hydrogen cracking which of the following will require the lowest preheat if all other factors were the same as per IBO (B EN 1011)?
To prevent hydrogen cracking which of the following will require the lowest preheat if all other factors were the same as per IBO (B EN 1011)?
Open 33An arc strike on a high carbon steel plate is likely to have the following microstructure beneath its surface?
An arc strike on a high carbon steel plate is likely to have the following microstructure beneath its surface?
Open 34Rutile electrodes are often sold packed in a cardboard box covered with a plastic film. Upon opening you found they were damp and the ends were rusty. What course of action would y
Rutile electrodes are often sold packed in a cardboard box covered with a plastic film. Upon opening you found they were damp and the ends were r...
Open 35What unit is used for tensile strength values?
What unit is used for tensile strength values?
Open 36Arc strike may cause?
Arc strike may cause?
Open 37If the maximum interpass temperature is exceeded in a carbon manganese butt weld, what would be affected most?
If the maximum interpass temperature is exceeded in a carbon manganese butt weld, what would be affected most?
Open 38When MMA welding what will be the effect on the power source was changed from DC- to AC?
When MMA welding what will be the effect on the power source was changed from DC- to AC?
Open 39The quality of a radiographic technique is assessed
The quality of a radiographic technique is assessed
Open 40When calculating fillet weld strength which dimension is usually used?
When calculating fillet weld strength which dimension is usually used?
Open 41How long is the period of time prolongation required for welder qualification to EN standards?
How long is the period of time prolongation required for welder qualification to EN standards?
Open 42Which type of MMA electrode would normally give the highest level of penetration?
Which type of MMA electrode would normally give the highest level of penetration?
Open 43In GMAW/MIG/MAG welding, which parameter can be used to help reduce the level of spatter?
In GMAW/MIG/MAG welding, which parameter can be used to help reduce the level of spatter?
Open 44In MIG/MAG welding, which one of these gas mixtures used for welding carbon manganese steels?
In MIG/MAG welding, which one of these gas mixtures used for welding carbon manganese steels?
Open 45In order to calculate heat input, it is necessary to know
In order to calculate heat input, it is necessary to know
Open 46Which of these mechanical tests is not classified as qualitative?
Which of these mechanical tests is not classified as qualitative?
Open 47Which of these electrodes have the highest recovery rate?
Which of these electrodes have the highest recovery rate?
Open 48The direction of shrinkage in a welded joint are?
The direction of shrinkage in a welded joint are?
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