Mechanical Engineering MCQ with Answers
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Which welding parameter has the greatest influence on heat input?
Which welding parameter has the greatest influence on heat input?
Open 338A fillet weld has a design throat thickness of 8 mm. What is the minimum leg length that is required?
A fillet weld has a design throat thickness of 8 mm. What is the minimum leg length that is required?
Open 339In a martensite grain structure, which of the following mechanical properties would be increased?
In a martensite grain structure, which of the following mechanical properties would be increased?
Open 340Which of the following alloying elements is used to improve the toughness of steel?
Which of the following alloying elements is used to improve the toughness of steel?
Open 341For MIG/MAG Welding, wire feed speed is proportional to:
For MIG/MAG Welding, wire feed speed is proportional to:
Open 342A typical temperature for stress relieving carbon-manganese steel weldments is:
A typical temperature for stress relieving carbon-manganese steel weldments is:
Open 343A brittle fracture can be identified (from examination of the fracture faces) by:
A brittle fracture can be identified (from examination of the fracture faces) by:
Open 344Which of the following statements about lamellar tearing is correct ?
Which of the following statements about lamellar tearing is correct ?
Open 345When all weld imperfections have been located, it is mandatory that:
When all weld imperfections have been located, it is mandatory that:
Open 346Which of the following is non-magnetic?
Which of the following is non-magnetic?
Open 347For some welding applications, the weave width of the weld beads is restricted. This is because wide weave widths may give?
For some welding applications, the weave width of the weld beads is restricted. This is because wide weave widths may give?
Open 348Centerline cracking of butt welds, made using high current MIG/MAG welding, may result from
Centerline cracking of butt welds, made using high current MIG/MAG welding, may result from
Open 349The term “transition temperature” is associated with:
The term “transition temperature” is associated with:
Open 350The use of degreasing solvent, for cleaning a joint prior to welding, may be an unsafe practice because:
The use of degreasing solvent, for cleaning a joint prior to welding, may be an unsafe practice because:
Open 351An austenitic stainless steel, such as 316L has
An austenitic stainless steel, such as 316L has
Open 352An electrode is classified to BS EN ISO 2560 as E35 3B. What does B mean?
An electrode is classified to BS EN ISO 2560 as E35 3B. What does B mean?
Open 353Which of the following is NOT an essential variable for WPQ?
Which of the following is NOT an essential variable for WPQ?
Open 354For submerged Arc welding, increasing the arc voltage will give
For submerged Arc welding, increasing the arc voltage will give
Open 355What does the term back-step refer to during welding
What does the term back-step refer to during welding
Open 356For MMA welding arc voltage is controlled by
For MMA welding arc voltage is controlled by
Open 357Which of the statements is correct?
Which of the statements is correct?
Open 358When doing visual inspection which of the following is not required?
When doing visual inspection which of the following is not required?
Open 359Which factor will prevent lack of root penetration?
Which factor will prevent lack of root penetration?
Open 360As the output energy of an X-ray set is increased
As the output energy of an X-ray set is increased
Open