ITI Exam

आईटीआई परीक्षा की बेहतर तैयारी

Machinist 1st Year Module

Drilling and Its related operations | ड्रिलिंग और इससे संबंधित संचालन

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Q1. Calculate the cutting speed used for drilling a 20 mm dia meter hole in a mild steel work piece with a rpm of 399?
Q2. What is the purpose of counter sinks with pilot?
Q3. What is the distance a drill advances in one rotation while drilling?
Q4. How many numbers are in metric tap set?
Q5. Why the tap drill size to be calculated?
Q6. What is the purpose of ‘depth stop’ in a drilling machine?
Q7. What is the operation shown figure?
Q8. What is the formula to find out RPM of drill?
Q9. What is the use of threading dies?
Q10. Calculate the rpm for drilling a hole of diameter 16 mm on cast iron with a cutting speed 30 m / minute?
Q1. What is the part shown as X in the figure?
Q12. Which way the coolant flows through the cutting edge in a drill?
Q13. What is the least count of vernier height gauge?
Q14. What is the name of the part X?
Q15. What is the bevelling angle for holes to be threaded?
Q16. How we specify a vernier height gauge?
Q17. What is the name of the angle marked X?
Q19. What is the reason for using dial indicator instead of scriber point in vernier height gauge?
Q19. What is done in given drawing?
Q20. Which device is used as datum while marking by vernier height gauge?
Machinist 1st Year Module 2 Drilling and Its related operations
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