Practice Test: Question Set - 04
1. While chipping, the clearances angle is the angle between
- (A) The working surface of the job and the top surface of cutting edge of chisel
- (B) The working surface of the job and the bottom surface of cutting edges of chisel
- (C) The surface at right angle to the cutting edge of chisel and the working surface of the job
- (D) None of the above
2. Which one of the following is used to hold the straight shank drill having diameter less than 12 mm?
- (A) Sleeve
- (B) Socket
- (C) Drill chuck
- (D) Drill drift
3. The taper shank of a drill of 20 mm diameter has
- (A) MT-1 taper
- (B) MT-2 taper
- (C) MT-3 taper
- (D) MT-4 taper
4. The best position to hold the job in the vice when filing is
- (A) Eye level
- (B) Shoulder level
- (C) Elbow level
- (D) Arm level
5. As per Indian Standards the grain size '46' comes under the group
- (A) Coarse
- (B) Medium
- (C) Fine
- (D) Very Fine
6. Tap water is NOT preferred as coolant while drilling. What is the reason for this?
- (A) Insufficient cooling effect
- (B) Danger of corrosion
- (C) Decrease in cutting action of drill
- (D) Quick evaporation of water
7. Which one of the following drilling machines is used for drilling holes where electricity is not available?
- (A) Bench drilling machine
- (B) Pillar drilling machine
- (C) Radial drilling machine
- (D) Ratchet drilling machine
8. How does a hand reamer differ from a machine reamer?
- (A) Larger bevel lead for the cutting edge
- (B) More number of cutting teeth
- (C) Less number of cutting teeth
- (D) Unequal spacing of cutting edges
9. Counter-boring is done for
- (A) Deburring hole ends
- (B) Enlarging the hole to accurate size
- (C) Finishing the cored hole
- (D) Accommodating socket head screws
10. A reamed hole has patches of poor finish. Which one of the following is the cause for this defect?
- (A) The bored hole has insufficient reaming allowance
- (B) Excessive cutting speed
- (C) Wrong selection of the reamer for the job
- (D) Insufficient coolant supply
11. In which one of the following machining operations, single-point cutting tools are not used?
- (A) Turning
- (B) Shaping
- (C) Planing
- (D) Milling
12. A cutting tool used to finish and enlarge a hole is known as
- (A) Drill
- (B) Tap
- (C) Die
- (D) Reamer
13. A hole which is not made through full depth of the component is known as
- (A) Core hole
- (B) Blind hole
- (C) Pin hole
- (D) Bore hole
14. The cutting angle of a flat chisel for chipping aluminium is
- (A) 35°
- (B) 55°
- (C) 60°
- (D) 70°
15. The safe edge of file is used to
- (A) Give best finishing
- (B) Protect the adjacent sides
- (C) Finish flat surfaces only
- (D) Cut metal very quickly
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