3561135
Description
Flashcards by Vincent Bergeron, updated more than 1 year ago
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Created by Vincent Bergeron
over 8 years ago
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| Question | Answer |
| The hammer shown is a | soft faced hammer made from copper, rawhide, lead |
| The screwdriver recess in Figure 71 is a : | clutch head |
| A standard screwdriver blade maintains a better grip in the slot if the blade is ground slightly: | a concave blade holds better grip |
| When tightening a bolt with a wrench: | always pull on the wrench, it's safer than pushing |
| The type of tool least likely to slip when holding small parts is the: | vice grip |
| A type of wrench that can be used to turn a polished cylindrical shaft is a: | a strap wrench |
| The included angle that should be ground on the point of a centre punch is: | 90 degrees |
| A drift punch is useful to: | to align holes in different work pieces |
| The removable serrated jaws on a bench vise are made from: | hardened steel |
| Which type of torque wrench is best for achieving a preset amount of torque? | a click type torque wrench |
| Pullers are used to: | easily remove bearings, hubs and sprockets |
| Before working around a load that has been raised with a hydraulic jack: | blocks must be placed under the load to ensure it doesn't drop |
| Alkaline cleaning must be only be used on which of the following metals: | ferrous metals |
| Barrel finishing: | many pieces can be done at once inexpensive |
| How do you designate the size of a bench vise? | the width of the jaws |
| Why is it important to NOT hammer on the vise surface of the slide bar? | it can crack or distort the vise |
| What is the purpose of using soft jaws on a vise? | to protect the surface of that part you are holding |
| If you have to use a vise for heating and heavy bending operations, what is often a common practise? | using a vise that is only used for that purpose |
| What are the four principal parts of a ball peen hammer? | Face Peen Eye Post |
| For what application is the peen of the ball peen hammer used? | the peen is used for riveting |
| What is another name for a sledgehammer? | A MAUL |
| Why is a sledgehammer used? | When a larger force than a regular hammer is capable of is required |
| Where would you use a soft face hammer? | When you don't want to damage the surface of the workpiece |
| What is different about a dead-blow hammer? | The head of the hammer is filled with steel of lead shot |
| How do you secure a wooden handle to the hammer head? | with a metal wedge |
| Of what material are punches normally made from? | Hardened steel Tempered Steel |
| What punch is recommended if you do not want to damage the finished surface? | A soft steel puch or A brass punch |
| Which punch material is good to use in a non-sparking environment? | Brass |
| What is the purpose of using a centre punch ground at an included point angle of 90 degrees? | To make an indentation to properly locate and start the drill |
| What is the purpose of using a prick punch ground at an included point angle of 30 to 60 degrees? | To make small permanent layout marks on a workpiece |
| Which punch is used without the use of a hammer? | Automatic Centre Punch |
| How can you change the indentation size when using the automatic centre punch? | by turning the cap on the handle end of the punch |
| Why should you ensure the mushroomed punch heads do not appear on your punches? | Because there is a possibility of pices breaking off and causing injury |
| What is the purpose of a pin punch? | they are used to drive or remove: dowel pins, tapered pins, cotter pins, keys |
| What is the purpose of a drift punch? | to align holes in two or more work pieces that must be joined together |
| What is the purpose of a transfer (spotting) punch? | transferring the hole positions from one plate to another |
| Why is a shallow groove cut into the side of a metal stamp? | so you can feel it with your thumb for proper letter orientation |
| Why should you grind a standard blade screwdriver with a concave? | so it won't tend to slip out of the slot when turned |
| Describe a box and wrench | it fully encircles the nut of bolt head |
| Why is a wrench angled at 15 degrees from the working surface? | so your hand clears the work |
| Which wrench has a different size open at each end of the wrench (box end or open end)? | Open End Wrench has a different size on each end |
| How is the size of an open end wrench determined? | The distance across the flutes |
| Why are the open end wrench flats at 15 degrees to the wrench handle? | so the wrench can be flipped over allowing a new bite to be taken on the bolt |
| What does a 3/8 drive socket mean? | it is a socket driven with a 3/8" square hole |
| Describe the proper way to use an adjustable wrench? | the force must act against the solid jaw, not the movable one. |
| How are hex socket wrenches sized? | the distance across the flats on the wrench |
| What is the purpose of using a torque wrench? | to prevent under or over torquing |
| Where should the working range of a torque wrench be in relation to the scale of the wrench? | it should be in the middle half of the torque scale |
| How does a torque wrench multiplier increase torque | gear ration reduction |
| What enables a pipe wrench to grasp round parts? | adjustable serrated jaws |
| When is a strap wrench used? | when the surface of the work piece must not be damaged |
| Why is an adjustable hood spanner more flexible in its use? | it can be adjusted to fit different nut sizes |
| How is a slug wrench designed to be hammered on? | it has a square area for the hammer to land its blows on |
| What is a use for the pry bar pointed end? | it is used for many alignment applications |
| What determines the size of a C-clamp? | The maximum distance between the fully open jaws |
| When using a puller or press and removing a bearing from a shaft, what should you do? | inspect and clean the shaft |
| How may finished work be held in a vise without the surface being marred or damaged? | -use soft jaw caps made of brass, aluminum, or copper |
| Describe the most common hammer used by a machinist. | Ball-peen hammer |
| For what purpose are soft-face hammers used? | --used in assembling or dismantling parts so the finished surface of the work will not be marred; made of plastic, copper, lead |
| State three safety rules that should be observed when using a hammer? | 1. Handle is solid and not cracked 2. Head is tight on handle, with proper wedge 3. No grease 4. Never strike tow handle faces together, because of chips |
| Why is a properly sized box wrench preferred to other types of wrenches? | -because it cannot slip when the proper size is used |
| What advantages does a socket wrench have over a box wrench? | -when nuts or bolts must be tightened to within certain limits to prevent warping, socket wrenches can be used in conjunction with torque-wrench handle |
| What is the cross-sectional shape of an Allen wrench and for what purposes is an Allen wrench used? | -hexagonal shape -fit into recesses of socket head setscrews -very small heads, hard to reach places |
| Where is a hook pin spanner used? | -used on the circumference of a round nut -pin of the spanner fits into a hole int he periphery of the nut |
| State four useful hints for using any wrench. | 1. Always use wrench that fits the nut or bolt properly to stop slippage 2. When possible, always pull instead of push 3. Be sure the nut is fully in wrench jaw 4. Put drop of oil on the threads when assembling a bolt to ensure easier removal later 5.Use jerks instead of constant pulls |
| Vise grip pliers: extremely high gripping power because of adjustable lever action | |
| Diagonal cutter: solely for cutting wire and small pieces of soft metal | |
| Needle-nose pliers: holding very small parts, and bending and forming wire | |
| Side cutting pliers: -small diameter (1/8 inch or less) rods or wires | |
| -Slip joint pliers: used when small holes must be drilled or for twisting small light materials |
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