Rack, Spur gear, Milling and Boring Mock Test - ObjectiveBooks

# Practice Test: Question Set - 03

1. Why micro cartridges are used on boring bar in vertical milling machine?
(B) Useful for fast roughing of bore
(C) Useful for large hole drilling
(D) Useful for step boring easily

2. Which instrument is used to check the chordal addendum of a gear tooth?
(A) Screw gauge
(B) Vernier caliper
(C) Gear tooth vernier caliper
(D) Feeler gauge

3. How length of rack is calculated?
(A) Linear pitch × Number of teeth
(B) Module × Number of teeth
(C) 2.25 × module
(D) Pi × module

4. Which part of vertical milling that can be used for lift the knee?
(C) Elevating screw
(D) Front brace

5. What formula is applied for calculate the pitch diameter of a spur gear tooth?
(A) Z × m
(B) (Z + 2) m
(C) Z × m/2
(D) 7/6 × m

6. What kind of material is used to produce a template?
(A) Good quality iron tube
(B) Good quality round rod
(C) Good quality copper sheet
(D) Good quality steel sheet

7. Which type of machine is used to produce a T-slot in machine tools table?
(A) Lathe
(B) Horizontal milling
(C) Vertical milling
(D) Drilling machine

8. What is the addendum of gear teeth?
(A) Distance between outside circle to pitch circle
(B) Distance between outside circle to root circle
(C) Distance between pitch circle to root circle
(D) Distance between outside to bottom point of gear

9. Which machine used for boring, key way cutting and profile milling can be done?
(A) Lathe machine
(B) Shaping machine
(C) Vertical milling machine
(D) Horizontal milling machine

10. How to find the outside diameter of a spur gear having number of teeth is 'Z' and module 'm'?
(A) OD = Z/m
(B) OD = (Z-2) / m
(C) OD = (Z - 2) m
(D) OD = (Z + 2) m

11. How any degree is possible to swive on the vertical head of a vertical milling?
(A) 15°
(B) 25°
(C) 35°
(D) 45°

12. What is the use of sector arm on dividing head?
(A) Lock the index crank in position
(B) Eliminate counting holes each time
(C) Fix the index plate on its correct location
(D) Avoid the back lash of worm and Worm wheel

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