1. Which among the following processes is employed for embedding the abrasive on the lap ?

lapping

fixing

charging

rubbing

Answer: charging

Explanation:


2. Which of the following is not an example of a finishing process ?

grinding

broaching

lapping

honing

Answer: broaching

Explanation:


3. The pattern on the surface caused by the movement of the cutting tool is called ______________ ?

waviness

surface texture

lay

roughness

Answer: surface texture

Explanation:


4. The purpose of lapping is to _______________ ?

remove excess material

remove taper

produce high surface finish and accuracy

improve the quality of the components

Answer: produce high surface finish and accuracy

Explanation:


5. The process of precision grinding of part with loose dust type abrasive is know as ?

lapping

honing

polishing

buffing

Answer: buffing

Explanation:


6. Abrasive material used for lapping tungsten carbide and ceramics is ______ ?

silicon carbide

aluminium oxide

boron carbide

diamond

Answer: diamond

Explanation:


7. Which among the following materials is used for making flat lap plates ?

mild steel

high carbon steel

chromium steel

closed grain cast iron

Answer: closed grain cast iron

Explanation:


8. Which of the following is not a natural abrasive ?

diamond

corundum

emery

aluminium oxide

Answer: aluminium oxide

Explanation:


9. Mechanical sealing is a method of preventing ?

friction

vibration

leakage

unbalance

Answer: leakage

Explanation:


10. Which among the following abrasive is used for honing tungsten steel ?

silicon carbide

aluminium oxide

boron carbide

diamond

Answer: diamond

Explanation: