1. A classification of solvent which is soluble in water
a. non-polar solvents b. polar
c. solubled. solute
2. A classification of solvent which is insoluble in water
a non-polar solvents b. polar
c. soluble d. solute
3. There are 5 ways of routine maintenance, which of the following ways uses air
vacuum or a piece of cloth?
a. cleaning b. simple repair c. tightening/loosening d, tool for hand sharpening
4. Why is it important to maintain the good condition of tools and materials?
a. so that it will sustain for a long years of service. c. so that you can sold it to your friends.
b. so that the workers will be happy.
d. All of the above
5. . What will you do if your tools become rusty?
a. apply lubricants b. clean
b, repair d. soak in a water
6. What is Polar Solvent?
a. It is a component of a solution that dissolves solute and is usually present in large proportion or amount.
b. It focuses on the program of works done in the operation of power plants in machines that are in trouble of stopping
its function
c. It means a schedule or a planned visit of tools or equipment for inspection.
d. it is one classification of solvent which dissolve in water or soluble in water,
7. What will you do before and after using the tools?
a. clean b. lubricate
c. repair d. soak in water
8. An important task needs to be performed regularly in shop?
a. cleaning b. lubricating c. repair d. maintenance
9. A substance introduced to lessen friction between moving surfaces
a. cleaning b. lubricant c. lubricating d. maintenance
10. Refers to a schedule or a planned checking of tools or equipment's for inspection
a. cleaning b. lubricating c. repair d. maintenance
B. Answer the following questions based on your own understanding.
1. How do you check the routine and maintenance of using hand tools and equipment?
2. Why is lubricating of hand tools and equipment important?
3. Why is it important to maintain the good condition of tools and materials?
4. How true that gasoline can be used as cleaning solvent, Justify your answer?​