Mechanical Engineering MCQ with Answers
Use AskChainX mechanical engineering MCQs for quick practice, exam preparation, interview revision, and mock tests.
Popular search topics
Searchable question pages
Approved public questions with clean URLs, answer options, and explanation pages.
Why is the OCV capped at this voltage setting?
Why is the OCV capped at this voltage setting?
Open 146What is the maximum OCV allowable to initiate an arc when using AC current?
What is the maximum OCV allowable to initiate an arc when using AC current?
Open 147The welder had increased the voltage on the SAW welding set, what would be the effect on the weld?
The welder had increased the voltage on the SAW welding set, what would be the effect on the weld?
Open 148During root welding, which of the following would be the main cause of excess penetration?
During root welding, which of the following would be the main cause of excess penetration?
Open 149Who should have access to WPQRS?
Who should have access to WPQRS?
Open 150The WPS calls for a root gap to be between 2 and 3 mm, the actual measured gap is 4 mm, what course of action would you take?
The WPS calls for a root gap to be between 2 and 3 mm, the actual measured gap is 4 mm, what course of action would you take?
Open 151What does the term WPQR mean?
What does the term WPQR mean?
Open 152Which BS EN standard is used for welding symbols on drawings?
Which BS EN standard is used for welding symbols on drawings?
Open 153Which of the following could be used to minimize the occurrence of solidification cracking in steel welds?
Which of the following could be used to minimize the occurrence of solidification cracking in steel welds?
Open 154Why is it sometimes necessary to preheat the base material before welding?
Why is it sometimes necessary to preheat the base material before welding?
Open 155For the structure termed martensitic to form in a C-Mn steel it must first be heated to?
For the structure termed martensitic to form in a C-Mn steel it must first be heated to?
Open 156The temperature gradient of steels subjected to post-heat treatment stress relief cycles must be carefully controlled at all the temperatures above 300°C in order to:
The temperature gradient of steels subjected to post-heat treatment stress relief cycles must be carefully controlled at all the temperatures abo...
Open 157Which of the following processes is most prone to solidification cracking?
Which of the following processes is most prone to solidification cracking?
Open 158Sensitization is a term applied to the formation of which intermetallic compound at the grain boundaries in the HAZ of austenitic steels?
Sensitization is a term applied to the formation of which intermetallic compound at the grain boundaries in the HAZ of austenitic steels?
Open 159Charpy impact test shows a 50% rough torn surface and a 50% flat crystalline surface after completed test, this would indicate which type of failure?
Charpy impact test shows a 50% rough torn surface and a 50% flat crystalline surface after completed test, this would indicate which type of fail...
Open 160Lamellar tearing is a problem in steels which is always associated with?
Lamellar tearing is a problem in steels which is always associated with?
Open 161When welding vertically up with the MMA process, welding is sometimes restricted to 2.5 times electrode diameter, this restriction is mainly applied to:
When welding vertically up with the MMA process, welding is sometimes restricted to 2.5 times electrode diameter, this restriction is mainly appl...
Open 162A high level of surface cleaning is important prior to Penetrant testing in order to:
A high level of surface cleaning is important prior to Penetrant testing in order to:
Open 163A typical minimum OCV requirement for MMA (111) using basic electrodes would be:
A typical minimum OCV requirement for MMA (111) using basic electrodes would be:
Open 164A typical minimum OCV requirement for MMA (111) using either rutile or cellulosic electrodes would be:
A typical minimum OCV requirement for MMA (111) using either rutile or cellulosic electrodes would be:
Open 165An advantage of the SAW process is that:
An advantage of the SAW process is that:
Open 166Who should have access to the WPQRs?
Who should have access to the WPQRs?
Open 167An advantage of the MMA (111) welding process is that it:
An advantage of the MMA (111) welding process is that it:
Open 168In which of the following modes of transfer is inductance usually a variable parameter in solid wire MAG welding (135)?
In which of the following modes of transfer is inductance usually a variable parameter in solid wire MAG welding (135)?
Open