Millwright Level 1 Questions and Answers 100% correct

Millwright Level 1 Questions and Answers 100% correct On a pedestal grinder, the gap between the grinding wheel and work rest should not exceed: 1/8 inch The kind of abrasive material used in grinding wheels for general purpose applications is: aluminum oxide Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:02 / 0:15 Full screen A blotter is used on a grinding wheel to: protect the flanges from the abrasize grit, display information about the wheel and compensate for the uneven surfaces on the wheel Flanges should at least be: 1/3 the diameter of the wheel The best wheel to use for cleaning scale and dirt off a workpiece is the: wire wheel What is a natural abrasive? made of natural material rather than synthetic Under properties of abrasives, to what does the term hardness refer? ability of a material to scratch or penetrate another material The ____ is the part of the wheel that holds the grains together bond Markings for the wheel identification can be found on the _______ Blotter What is the recommended speed to run a grinding wheel? Never run it faster that the max RPM of the grinding wheel How should you start a grinder? Stand off to the side and wait a full minute Is 46 or 60 the coarser grit? 46 What are the 2 most commonly used abrasive materials? Aluminum oxide and silicone carbide For what purpose is the diamond dresser used? When a very fine finish is required What is the purpose of ring test? to check for cracks If a grinding wheel makes a ringing sound what does that mean? wheel is not cracked What is the purpose of truing a grinding wheel? Restores the shape of the wheel and makes the outer surface of the wheel concentric with its bore An out of balance wheel: vibrates Belt grinders are useful for: quickly deburring and chamfering a workpiece What is the purpose of a GFCI? Senses drop in current and switches power off The kind of abrasive material use in grinding wheels for general purpose application is: aluminum oxide Is it safe to carry a portable grinder by the power cord? False Is it safe to use standard sockets with electric impact wrenches False The larger the power drill, the slower the RPMs and the higher the torque True Can you use conventional drill bits with a hammer drill? Why or why not? Yes of the hammer drill has a switch to turn off hammer action Most cordless drills have torque control True Prolonged use of power or air tools can cause carpal tunnel sydrome True Is it safe to run an impact wrench with a universal joint and socket attached No because it may throw off attachments What conditions would you use a GFCI Wet conditions What 3 things does a GFCI protect: 1. Overload 2. Overcurrent 3. Ground fault protection A GFCI prevents all electrical shocks False Higher voltage on a battery means: Greater power of tool What type of power load must be used in the low velocity tool? Why? Power load with a crimped end must be used cause high power load would get lodged in the tool 6 colours ranging from lowest strength to highest strength for power load are: 1. Grey 2. Brown 3. Green 4. Yellow 5. Red 6. Purple Power loads should not be carried loosely in pockets or aprons. Why? Could be set off causing serious injury or death Fasteners used in explosive actuated tools are: Manufactured from special steel and tempered A drive pin is a fastener used to: Permanently attach one material to another What is base material? Material which the fastener shank is driven into To determine the sustainability of a base material, use a fastener as a centre punch struck by a single average hammer blow. If the fastener is blunted ( meaning it can't fasten) the material is too: Hard