Different milling operations | विभिन्न मिलिंग ऑपरेशन

October 6, 2024 ITI Exam

START QUIZ पर क्लिक करें और अपना Test पूरा करें

Q1. What is marked as X?

(A) Knife edge follower

(B) Flat faced follower

(D) Roller follower

Q2. What is the type of cam?

(A) Plate cam

(B) Drum cam

(D) Grooved plate cam

Q3 .Which gear is used automobile drives?

(A) Hypoid bevel gear

(B) Worm and worm gear

(D) Spur gear

Q4. Which method is suitable for worm wheel machining?

(A) Shaping

(B) Hobbing

(D) Grinding

Q5. Calculate the ʺLead of wormʺ its module is 2 mm and single start.

(A) 6.28

(B) 3.14

(D) 1

Q6. What is marked as X?

(A) Knife edge follower

(B) Flat faced follower

(D) Roller follower

Q7. How idler gears are functioned in gear train mechanism?

(A) Stop the rotation of gears

(B) Decrease the gear speed

(D) Change the direction of rotation

Q8. Which gear drive is used for ʺLarge speed reduction and torque transmissionʺ?

(A) Helical

(B) Worm and worm wheel

(D) Bevel

Q9. What is the formula to find pitch diameter in bevel gear?

(A) 2.25 m

(B) 1.25 m

(D) zm

Q10. What is the element marked as X?

(A) Pitch dia

(B) Root dia

(D) Pressure angle

Q11. What is the formula to find total depth in bevel gear?

(A) 1.25 m

(B) 2.25 m

(D) 2 m

Q12. What is marked as X ?

(A) Root angle

(B) Face angle

(D) Addendum angle

Q13. What is the angle marked as X?

(A) Radial rake

(B) Primary clearance

(D) Axial rake

Q14. What is the angle marked as X?

(A) Right hand helix

(B) Left hand helix

(D) Right spiral

Q15. Which type of gear the teeth are cut on conical surface of the job?

(A) Helical gear

(B) Spur gear

(D) Bevel gear

Q16. What is circular pitch value of given real module is 5.26mm?

(A) 56.26 mm

(B) 16.52mm

(D) 9mm

Q17. What is ʺπmz₁ʺ, in worm calculation?

(A) Length of worm

(B) Lead angle of worm

(D) Tooth thickness

Q18. Which gear has the advantage of smooth operation high speed range and more torque transmission?

(A) Hypoid gear

(B) Screw bevel gear

(D) Straight tooth bevel gear

Q19. What is marked as X?

(A) Throat dia

(B) Pitch dia

(D) Over dia

Q20., What is the curve marked as X?

(A) Cycloidal

(B) Involute

(D) Spiral

Q21. How cam follower mechanisms are functioned to convert the motion?

(A) Simple motion to complicated prescribed motion

(B) Restrict the motion between mating parts

(D) Disorganized irregular motion to simple motion

Q22. What is the name of key shown in figure?

(A) Flat saddle key

(B) Circular taper key

(D) Hollow saddle key

Q23. Which is used to impart a reciprocating motion to the followers in a machine?

(A) Clutch

(B) Shaft

(D) Gear

Q24. What is the formula to find back cone distance in bevel gear?

(A) zm

(B) m(z+2cos gʹ)

(D) z/cos dʹ

Q25. What is the formula to find gear ratio to cut a plate cam in milling machine?

(A)

(B)

(C)

(D)

Q26. What is the formula to calculate pitch diameter of worm wheel?

(A) 0.8 d₁

(B) ha₂

(C)

(D) mz₂

Q27. How followers are classified in cam?

(A) Shape

(B) Weight

(D) Material

Q28. Which one is positive cam?

(A) Plate cam

(B) Cylindrical cam

(D) Crown cam

Q29. Calculate the dedendum of bevel gear if module is 3mm.

(A) 6 mm

(B) 6.75 mm

(D) 3.75 mm

Q30. Calculate pitch diameter for milling a bevel gear if module =3 mm and no of teeth = 24.

(A) 76.24

(B) 3.75

(D) 3

Q31. Which material is used to made master gears?

(A) Mild Steel

(B) Aluminium

(D) Grey Cast Iron

Q32. What is the cross section of flat saddle key?

(A) Hollow

(B) Square

(D) Round

Q33. Which one is used for reducing speed and increasing torque?

(A) Helical gear

(B) Rack & Pinion

(D) Spur gear

Q34. Which type of bevel gear is used to connect shafts that are at an angle but not inserting?

(A) Spiral bevel gear

(B) Straight bevel gear

(D) Mitre gear

Q35. Which type of key used on tapered fitting of shafts?

(A) Gib head key

(B) Hollow saddle key

(D) Woodruff key

Q36. Calculate the lift of the plate cam that has a rise of 15 mm in 90° rotation if the table lead screw has a pitch of 6mm.

(A) 0.266 mm

(B) 3.75 mm

(D) 0.0166 mm

Q37. Which curve line is generated by the progressive rotation of a point around a cylinder?

(A) Spiral

(B) Involute

(D) Cycloidal

Q38. Calculate the pitch diameter of worm wheel having module 2 mm and number of teeth is 40.

(A) 20

(B) 80

(D) 40

Q39. What is the formula used to determine the helix angle of spiral?

(A) nMXM

(B) πXD/Lead of helix

(D) nM+M

Q40. What is marked as X?

(A) Lobe

(B) Lead

(D) Uniform rise

Q41. Which type of bevel gear used in machines to transmit power to 90°?

(A) Spur

(B) Straight tooth bevel gear

(D) Hypoid gear

Q42. What is the use of slab milling cutter?

(A) To produce dovetail

(B) To produce gear

(D) To produce plain surface

Q43. Which formula is used to determine the angle of swivel of the table to cut helical grooves on workpiece?

(A)

(B)

(C)

(D)

Q44. What is the indexing ratio of dividing head used in milling machine?

(A) 1:40

(B) 40:1

(D) 1.80

Q45. What is the name of key in figure?

(A) Taper sunk key

(B) Flat saddle key

(D) Gib head key

Q46. What is the formula used for calculate circular pitch of helical gear?

(A) π/m

(B) πxm

(D) PD+N

Q47. How master gears should preferably made in order to check the errors in gear?

(A) Lower addendum Valve

(B) Higher module value

(D) Higher addendum Valves

Q48. What is marked as X?

(A) Total composite error

(B) Tooth to tooth composite error

(D) Profile error

Q49. What is the purpose key used in shafts?

(A) For increase the diameter value of shafts

(B) For transmitting torque

(D) For hand grip

Q50. Which is used to measure chordal thickness of the gear teeth?

(A) Inside micrometer

(B) Outside micrometer

(D) Flange micrometer

Machinist 2nd Year Module 12 Different milling operations

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