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Millwright Level 1 Final Exam: 340+ Questions and Answers, Exams of Industrial Engineering

San Jacinto College District Industrial Engineering

This comprehensive document provides a thorough review of millwrighting principles and practices, covering topics such as grinding wheels, power tools, explosive actuated tools, and hand tools. it includes over 340 questions and answers, ideal for students preparing for a level 1 millwright final exam. The questions test knowledge of safety procedures, tool operation, and material properties, ensuring a well-rounded understanding of the subject matter.

Typology: Exams

2024/2025

Available from 04/21/2025

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2025 MILLWRIGHT LEVEL 1 FINAL EXAM / REAL

340+Qs&As|LATEST UPDATE|A+GRADE

1. On a pedestal grinder, the gap between the grinding wheel and work

rest should

not exceed::

✓✓✓

1/8 inch

2. The kind of abrasive material used in grinding wheels for general purpose

applications is:: aluminum oxide

3. 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

4. Flanges should at least be:: ✓✓✓ 1/3 the diameter of the wheel

5. The best wheel to use for cleaning scale and dirt off a workpiece is the::

wire wheel

6. What is a natural abrasive?: ✓✓✓ made of natural material rather than

synthetic

7. Under properties of abrasives, to what does the term hardness refer?:

✓✓✓ ability of a material to scratch or penetrate another material

8. The is the part of the wheel that holds the grains together: bond

9. Markings for the wheel identification can be found on the

:

✓✓✓

Partial preview of the text

Download Millwright Level 1 Final Exam: 340+ Questions and Answers and more Exams Industrial Engineering in PDF only on Docsity!

2025 MILLWRIGHT LEVEL 1 FINAL EXAM / REAL

340+Qs&As|LATEST UPDATE|A+GRADE

On a pedestal grinder, the gap between the grinding wheel and workrest should not exceed:: ✓✓✓1/8 inch
The kind of abrasive material used in grinding wheels for general purpose applications is:: aluminum oxide
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 unevensurfaces 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 : ✓✓✓

2 / 15 Blotter

What is the recommended speed to run a grinding wheel?: Never runit 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?: Aluminumoxide 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?: wheelis not cracked
What is the purpose of truing a grinding wheel?: Restores the shape ofthe 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

What type of power load must be used in the low velocity tool? Why?: Pow- er 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::
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 fromspecial steel and tempered
A drive pin is a fastener used to:: Permanently attach one material toanother
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 fasteneris blunted ( meaning it can't fasten) the material is too:: Hard
To determine the sustainability of a base material, use a fastener as a cen- tre punch struck by a single average hammer blow. If the fastener penetrates easily, do not fasten because the material is too:: Soft
To determine the sustainability of a base material, use a fastener as acentre punch struck by a single average hammer blow. If the material cracks or shatters, do not fasten because the material is too:: Brittle

A threaded knurled pin is designed for what material: Mild steel
To be a qualified operator of an explosive actuated tool you mustposses:- : training in the use of each tool and familiarity with local safety regulations
OH&S states that operators of explosive actuate tools shouldalways wear:: Eye protection
If a tool is found to be defective, you should:: Mark it defective and call a service representative
According to OH&S, what safety equipment is required when using an explosive actuate tool in a confined area such as a small room?: ear plugs and eye protection
Who is responsible if an accident occurs as a result of an unattended explosive actuated tool?: The operator
Should an explosive actuated tool be used in explosive orflammable area?: No
How often should an explosive actuated tool be cleaned under normal working conditions?: It should be cleaned daily or when it becomessluggish
How much oil should be added to the tool parts after cleaning?: None
What part requires replacement most often in a low velocity tool?: Buffer
With a low velocity tool, what is a general rule of thumb for the placement and depth of fasteners in steel?: 1/2" from the edge, 2" apart and 1/4" deep

How does the blade set differ from the blade kerf?: Kerf is the width theblade cuts and set is the way individual teeth are bent out of line with the body
What are the limitations of a horizontal band saw as it relates to cutting curves or round corners?: It can only cut straight
How is feed rate controlled on a horizontal band saw?: An adjustable hy- draulic cylinder
IS it necessary to turn a horizontal band saw off manually after completing a cutting operation? Why or Why not?: No because a switch isautomatically activated by the downward motion of the upper frame
What re the saw guides and where should you place them when you are using a horizontal band saw?: They guide the blade and should be adjusted to as close as possible to the work
If the blade jumps and shudders when you are using a horizontal band saw, what could be the problem?: The feed rate is too high
When cutting short pieces to length, what can be done to ensure thatthe jaws of the clamping device make good contact and do not distort: Placing a similar piece in the back
What is another name for a contour band saw?: Vertical band saw
What is tracking as it relates to band saw?: Centering the blade on the pulleys

What characteristics differentiate styles of band saw blades?: Material, width, gauge, pitch, type of tooth
What is the advantage of using a bimetal blade in a band saw?: Greater wear and heat resistance, faster cutting and better durability
Where should you place the weld when you are welding band saw blades?- : Bottom of a tooth gullet
The width of the saw blade cut in the workpiece is called:: kerf
The purpose of draw filing is to:: produces a smooth and flat surface
The removable serrated jaws on a bench vise made from:: aluminum
How do you designate the size of a bench vise?: Width of jaws
A standard screwdriver blade maintains a better grip in the slot if the blade is ground slightly:: Concave
The included angle that should be grund of the point of a centerpunch is:: 90 degrees
When tightening a bolt with a wrench:: Never push: always pull
The reason for the crown on the end of a flat scraper is:: so that the outside edges do not dig into the finished workpiece

Pullers are used to:: remove bearings, hubs and sprockets
When using a puller or press and removing a bearing from a shaftwhat should you do?: Inspect and clean shaft area
Before working around a load that has been raised with a hydraulic jack:: the load must be blocked
If a milling machine is shit down for repair:: Lock out the main breaker box
Why is pressurized air NOT a good method of removing metal chips from hard to reach places on a milling machine?: It can get jammed under theways or caught in the spindle taper. They can also cause burns/infections
What makes a universal horizontal milling machine different from aplain horizontal milling machine: The table can be swivelled
When would you tighten the backlash eliminator: When climb milling
As a general rule, the maximum depth of cut for an endmill is equal to:: 1/2 the diameter of the endmill
You can use V-blocks on a milling machine: True
The purpose of the overarm is to support the , which in turn supports the : arbor supports, free end of arbor

What controls the feed rate on a milling machine?: Controlled by gearbox found in knee. Levers are picked for speed or can be picked with a dialfor lighter milling
What is the taper per foot used on milling machine spindles?: 3 1/2"per foot
What draws the arbor or collet chuck into the spindle of themilling machine?: The draw bolt
Which vise is the most rigid vise for a milling machine? Why?: Plainvise because the swivel and universal vise hold the work to high
What is a shim used for on a milling machine?: Used as packing when supporting a work piece or lifting the back end of a strap clamp
What is the main purpose of stop blocks?: Stop the workpiece from shifting under load
The is the amount of metal removed by each tooth perrevolu- tion: Chip load
Determine the feed rate if a milling machine spindle has a speed of200rpm and the cutter has 6 cutting edges with a chip load of 0.003": Feed= Chip Load x Spindle Speed x # of Teeth 0.003 x 200 x 6 = 3.
Why would you use parallels under a workpiece when plunge cutting a through- hole?: to prevent cutting in the table

Sleeve
Thimble
Ratchet
Lock nut
Frame 127. What method provides most accurate measurement when it comes to a micrometer?: Ratchet method because it releases at the same pressure every time 128. Regular micrometer scale level of accuracy is:: 0.001" 129. Vernier micrometer scale level of accuracy is:: 0.0001" 130. What is an Intrimik?: Has 3 contact points rather than 2 making it self center- ing 131. What is different about the scale of a depth micrometer from a regular micrometer?: The distance measured is covered by the thimble 132. What kind of tool is a taper gauge?: Direct reading tool 133. What is a taper gauge used for ?: Determining the width of a slot or diameter of a hole and amount of angular misalignment 134. The difference between a screw and a bolt is the:: Application

135. Why are thread forming screws used?: Convenient in sheet metal assem- blies 136. The major diameter of a thread is shown on a drawing as 0.748 +/- 0.002. What is the tolerance on the major diameter?: 0. 137. The pitch diameter of a thread is measured exactly halfway between the major and minor diameters: False. Its APPROXIMATELY halfway betweenthe major and minor diameter 138. On a general purpose ISO metric thread, what character in thedesigna- tion indicates a medium tolerance grade?: Grade 6 139. An ISO metric thread is designated by M14 x 2 - 6g. What is the pitchof this thread?: 2MM 140. What are 2 types of tapered thread form?: NPT and NPTF 141. The unified thread class that offers the tightest fit is:: 3 142. The designation that identifies a nut is:: B 143. Marks on the head of a bolt indicate the:: grade and tensile strength 144. A thread is designated 5/8 - 11 Class 2A. The thread shown:: is anexternal thread 145. The thread angle from an American National Acme Thread is:: 29 degress

Pitch diameter

148. Rolled threads are advantageous over machined threads because:: They have increased tensile strength They produce a burnished thread finish They have better wear resistance which reduces fatigue and shear problems 149. What does API stand for: American Petroleum Institue 150. What kind of threads do Acme threads have?: 29 degree angle and the root and crests are flat 151. Hex set screws may sometimes be doubled up: True 152. What are cap screws made of?: High tensile steel 153. How is a Woodruff key sized?: First 2 numbers are multiplied by 1/32"and second set of numbers are multiplied by 1/8" 154. A rivet is:: a permanent fastener 155. What is the taper per foot of a tapered gib head key?: 1/8" per foot

156. What is the taper per foot of a tapered dowel pin?: 1/4" per foot 157. Cotter pins can be reused: False. Cotter pins are a one time use 158. Which variable is the most important when determining spindle speed?- : diameter of the drill 159. Any machined surfaces on a drill press that could rust must be:: Kept clean and oiled 160. When installing a taper shank drill into the spindle bore, you must takeseveral precautions. What are they and why?: Ensure taper and bore are clean, wipe with a rag without scraping/marking internal taper, any burrs are removed or it'll throw the bit off center 161. Cutting speed refers to:: Peripheral speed 162. How fast should a 1/2" drill turn when drilling mild steel if the cutting speed is 90 sfpm?: 720 RPM 163. Small drills require a higher feed per revolution than larger ones.: False 164. Which abbreviations is used to express the feed rate on a drill press?: IPR 165. A drill press has a #2 Morse taper. A twist drill with a #3 Morse taper shank

175. You must used the correct RPM when using a center drill or youwill dull/break the bit: True 176. What speed should a countersink and counterbore be set at?: Approxi- mately 1/4 of what you would use for a drill 177. What are the drill point included angles for soft, general and hard mate- rial?: 60 - 90 degrees for soft, 118 degrees for general and 150 degrees forhard material 178. What are 2 dial reading styles?: Balanced and continuous 179. What are 3 types of dial indicators?: Bottom plunger, test indicators andback plunger 180. What are dial bore gauges?: Comparison measurement tool 181. What is the advantage of a dial bore gauge?: You can move it tovarious positions with making any adjustments 182. Copper sulphate layout solution should be used on:: Ferrous metals 183. When angles are laid out with a bevel protractor, the accuracyattainable is:: +/- 0.5 degrees (30mins) 184. The surface gauge is used:: to layout lines parallel to an edge 185. For maximum reliability when setting dividers to a dimension on a steel

rule:: set one point to the 1 inch or 10 MM graduation

186. Trammels are used for scribing when:: the circle to be scribe is beyondthe range of the dividers 187. When a radius is being laid out on a corner?: the centre of the radius is located equidistant from the two adjacent sides 188. before using a vernier height gauge it is important to:: zero the vernierto the reference surface 189. If the lines are scribed onto a workpiece it is considered to be:: temporary layout 190. The grade of surface plate which would be used in the shop is the:: Grade B 191. Which part of the combination set would be used to find the centre on the end of a shaft?: a centre head and rule 192. Precision layout with a vernier height gauge is accurate to:: 0.001" or 0.02MM 193. What scribe has the highest degree of accuracy?: Knife edge 194. What are 2 types of dividers?: Spring joint and firm joint 195. What are permanent layout lines?: used to make sure layout lines are still

Millwright Level 1 Final Exam: 340+ Questions and Answers, Exams of Industrial Engineering

Related documents

Partial preview of the text

Download Millwright Level 1 Final Exam: 340+ Questions and Answers and more Exams Industrial Engineering in PDF only on Docsity!

2025 MILLWRIGHT LEVEL 1 FINAL EXAM / REAL

340+Qs&As|LATEST UPDATE|A+GRADE