Important #Interview Question and Answers about #Steel Bar for Freshers

Important Interview Question and Answers about #Steel Bar for Freshers

Q1. What is the Rolling Margin Tolerance for Nominal mass for a 25 m diameter bar?

Answer: As per IS 1786, the Rolling Margin Tolerance for Nominal mass for 25 m diameter bar is ±3 %.

Q2. What is the allowable maximum percentage of Carbon in the manufacturing of TMT (Thermo Mechanically Treated) Bar?

Answer: As per [IS 1786, Clause- 3.2], the allowable maximum percentage of Carbon in the manufacturing of TMT (Thermo Mechanically Treated) Bar is 0.25 %

Q3. What is the Standard Length of Steel Bar taken for Rolling Margin?

Answer: The Standard Length of Steel Bar taken for Rolling Margin at Construction site is 1 meter.

Q4. What is the reference IS code used for the Bend Test of a Steel bar?

Answer: The reference IS code used for the Bend Test of a Steel bar is IS 1599.

Q5. What is the angle for the Bending of steel bar for the Bend test?

Answer: As per IS 1599, the angle for the Bending of steel bar for the Bend test is 180 degrees.

Q6. What is the diameter of the #Mandrel used for the Bend Test of Fe 500 for diameter 20 mm?

Answer: As per IS 1786, the diameter of the Mandrel used for the Bend Test of Fe 500 for diameter 20 mm is 4Φ, where Φ is the diameter of the bar.

Q7. What is the angle for the Bending of steel bar for the Rebend test?

Answer: For the Rebend test, Initially bend the bar to an included angle of 135 degrees. Keep it in boiling water at 100 degrees for 30 minutes. Then cool it down for some time. After cooling bent it back to an included angle of 157.5 degrees.

Q8. Which IS code specified for Mandrel diameter for Bend and Rebend test?

Answer: The IS code specified for Mandrel diameter for Bend and Rebend test is IS 1786.