Mechanical Engineering MCQ with Answers
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Plasma cutting can be applied to
Plasma cutting can be applied to
Open 386Which of the following cannot be detected by Penetrant testing?
Which of the following cannot be detected by Penetrant testing?
Open 387Unit of heat input
Unit of heat input
Open 388Inspection 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 389At what level is H2 considered to be more critical in cracking
At what level is H2 considered to be more critical in cracking
Open 390In 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 391Which 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 392The 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 393Basic electrodes are often sold vacuum packed. The reason is?
Basic electrodes are often sold vacuum packed. The reason is?
Open 394Post heating of weld joints is carried out in order to
Post heating of weld joints is carried out in order to
Open 395In oxy fuel cutting when cutting thin metals which fuel is used
In oxy fuel cutting when cutting thin metals which fuel is used
Open 396Which polarity is normally used for TIG welding of stainless steel?
Which polarity is normally used for TIG welding of stainless steel?
Open 397CEV of C-Mn
CEV of C-Mn
Open 398Ar-N2 is used for welding
Ar-N2 is used for welding
Open 399Cast and helix related to
Cast and helix related to
Open 400What is the greatest advantage of radiographic inspection over ultrasonic inspection?
What is the greatest advantage of radiographic inspection over ultrasonic inspection?
Open 401The most common reason why finish grinding of a butt weld is specified to be an application standard is to:
The most common reason why finish grinding of a butt weld is specified to be an application standard is to:
Open 402A welder’s qualification certificate issued to BS EN 287 or ASME IX may have to be withdrawn if
A welder’s qualification certificate issued to BS EN 287 or ASME IX may have to be withdrawn if
Open 403For TIG welding austenitic stainless steel there is a requirement for a high standard of cleanliness. What is the main reason for this?
For TIG welding austenitic stainless steel there is a requirement for a high standard of cleanliness. What is the main reason for this?
Open 404Side bend tests for butt weld joints are
Side bend tests for butt weld joints are
Open 405Which of the following is an effective way of reducing residual stresses caused by welding?
Which of the following is an effective way of reducing residual stresses caused by welding?
Open 406Electrodes designated E46 4 B (to BS EN 499) have been left out overnight on the workbench in a fabrication workshop. What is the best course of action?
Electrodes designated E46 4 B (to BS EN 499) have been left out overnight on the workbench in a fabrication workshop. What is the best course of...
Open 407For SAW which of the following has most effect on the finished profile?
For SAW which of the following has most effect on the finished profile?
Open 408The strength of a fillet weld is controlled by
The strength of a fillet weld is controlled by
Open