B. Choose and write the letter of the correct answer on your notebook. 1. It is a machine used to bore holes on thin metals. a. portable electric drill c. hammer drill b. portable grinder d. none of these 2. Which tool performs metal cutting and grinding edges? a. portable electric drill c. hammer drill b. portable disc grinder d. none of these 3. It is a that uses pressurized fluid oil to accomplish the work. a. Electric c. pneumatic b. hydraulic d. none of these 4. It is the most appropriate tool used to bend large sizes of rigid metallic conduits. a. hickey pipe vise b. hydraulic pipe bender d. none of these 5. Grinding with the portable disc gr der should not be done in an area which a. is enclosed. c. has windows. b. is freshly painted. d. contains flammables or combustible gases. 6. Noel wants to cut fast the metal conduit since he is running out of time, which cutting tool should you use to do the task? a. Hack saw c. Reciprocating saw b. Pipe cutter d. none of these 7. It is a tool design to thread various water, electrical, and gas pipe ranging from " to 2" that is ideal for in reasing work efficiency, shorten the construction time, securing construction quality, and decreasing work intensity a. Pipe Threader c. Portable power threader b. Portable disc Grinder d. None of these 8. If you use inappropriate tool for a given task, the following may happen except for a. It will cause damage both to your work and to the tool. b. There is no effect, it is the same as you use the appropriate tool for the task c. This may harm the tool operator d. None of these 9. The following can identify whether the tool is functional or non-functional except for 40​