1. Which one the following features, refers to vitrified bond wheels ?
Suitable for wet and dry grinding.
2. Dressing and truing of a grinding wheel are
done with the same equipment.
3. A hardened die block (work) has to be ground. It is required to retain the same hardness
even after grinding. If the work is overheated in the grinding process, it may result in work
being rejected or scrapped. Probable reason for rejection is that the work surface is
softened.
4. Which one of the following machine reamers is used to correct the misalignment between
the reamer axis and the work axis ?
Floating blade reamer.
5. You have to select a grinding wheel with suitable abrasive to grind glass. What is the type
of abrasive you will select?
Diamond.
6. Which one of the following cutting fluids is used during grinding mild steel ?
Soluble oil.
7. Grinding with a balanced grinding wheel will make it possible to achieve the required
dimensional accuracy with surface finish.
8. Counter-boring is done for
Accommodating socket head screws.
9. Oil grooves are to be cut in brass half bearings. Which one of the following chisels is suitable?
Half-round nose chisel .
10. After threading a hole by a tap, it was found that the crest of thread was not formed through
out. Which one of the following reasons would have caused this defect ?
Hole size slightly more than the tap drill size.
11. Which is the possible cause when a twist drill produces a rough hole on the job?
Feed rate is too high.
12. Which angle of counter sink drill you will select for seating counter sink type A (IS –
3406-1986) ?
Counter sink drill 90°.
13. What will be the result if the clearance angle in drill is increased ?
Weak cutting edge.
14. A reamed hole has patches of poor finish. Which one of the following is the cause for
this defect?
The bored hole has insufficient reaming allowance.
15. Appropriate tool used for spot facing
Fly cutter.
16. Which among the following is not a capability of a reamer
finishing any machined profile.
Suitable for wet and dry grinding.
2. Dressing and truing of a grinding wheel are
done with the same equipment.
3. A hardened die block (work) has to be ground. It is required to retain the same hardness
even after grinding. If the work is overheated in the grinding process, it may result in work
being rejected or scrapped. Probable reason for rejection is that the work surface is
softened.
4. Which one of the following machine reamers is used to correct the misalignment between
the reamer axis and the work axis ?
Floating blade reamer.
5. You have to select a grinding wheel with suitable abrasive to grind glass. What is the type
of abrasive you will select?
Diamond.
6. Which one of the following cutting fluids is used during grinding mild steel ?
Soluble oil.
7. Grinding with a balanced grinding wheel will make it possible to achieve the required
dimensional accuracy with surface finish.
8. Counter-boring is done for
Accommodating socket head screws.
9. Oil grooves are to be cut in brass half bearings. Which one of the following chisels is suitable?
Half-round nose chisel .
10. After threading a hole by a tap, it was found that the crest of thread was not formed through
out. Which one of the following reasons would have caused this defect ?
Hole size slightly more than the tap drill size.
11. Which is the possible cause when a twist drill produces a rough hole on the job?
Feed rate is too high.
12. Which angle of counter sink drill you will select for seating counter sink type A (IS –
3406-1986) ?
Counter sink drill 90°.
13. What will be the result if the clearance angle in drill is increased ?
Weak cutting edge.
14. A reamed hole has patches of poor finish. Which one of the following is the cause for
this defect?
The bored hole has insufficient reaming allowance.
15. Appropriate tool used for spot facing
Fly cutter.
16. Which among the following is not a capability of a reamer
finishing any machined profile.
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