MET320 WK4 Quiz

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ECPI University, Virginia Beach *

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Course

320

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Mechanical Engineering

Date

Oct 30, 2023

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5

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The purpose of an arbor is for drilling and starting slots. Select one: True False v Heavy-duty mills are used for large machining operations. Select one: True v/ False Always use a brush to clean away cuttings. Select one: True v False Indexing for a workpiece for a 60° angle would require Select one: a. 7 complete tums b. 6 complete turns <. 7 complete tums and 14 holes on the 18-hole circle X d. 6 complete turs and 26 holes on the 39-hole circle
When the table is being aligned, the indicator should be mounted on the Select one: a. arbor b. table o knee d. column % Which of the following is not a natural abrasive? Select one: a. gamet b. Borazon v ¢ sandstone d. emery Which of the following is not a formed cutter? Select one: a. convex b. concave ¢ helical v d. gear tooth The milling-machine arbor has a self-holding taper. Select one: True X False
The cutting speed of a metal is stated in in./min Select one: True False v/ The outside diameter of a gear is equal to the number of teeth plus two divided by the pitch diameter. Select one: True False v Which of the following hole circles can be used to index for 11 Select one: a 39% b. 27 c 33 d. 21 A wheel be checked for defects by performing a ring test. Select one: True v False
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When a two-fluted end mill is used to cut a slot, the maximum depth of cut should be Select one: a. twice the cutter diameter b. the same as the cutter diameter X <. one-quarter the cutter diameter d. one-half the cutter diameter The plain milling cutter is used to produce a Select one: a. contoured surface b. angular surface ¢ flat surface parallel toits axis v d. vertical surface at 90° to its axis When machining a keyseat having two blind ends, use a two-fluted end mill Select one: True v False One advantage that a two-flute end mill has is that it forms cutting edges on end. Select one: True v False
Which of the following shapes would be produced if the crank were tumned 13 full tums plus 7 holes on the 21-hole circle? Select one: a square b. triangle ¢ octagon d. hexagon X When removing a milling cutter, always Select one: a. handle it with a cloth v b. place it on the machine table <. place it on the floor d. any of these The addendum is the distance from the outside diameter to the pitch circle. Select one: True False X When the vise is being aligned, the indicator may not be mounted on the Select one: a. cutter b. arbor c. face of the column X d. solid jaw or parallel in vise

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4:25 l 4G O A moodle.nct.edu.om – Private Question 2 Not yet answered Marked out of 1.00 P Flag question From the following figure identify a lathe operation using both longitudinal & cross feed. O a. Job Tool feed Taper Turning Ob. Parting-off Facing Od. Drill feed Centre Drilling
I need help matching each drawing to the term that it describes. Answers are used only once.
Please answer all parts
Please answer with explanation I will really upvote Thanks
A twin-spindle drill simultaneously drills one ½-in hole and one  ¾" through a 1" wide work piece.  Both holes are  twist drill with 118° point angles.  cutting speed for  material is 230 ft/min.  The rotation speed of each spindle can  be configured individually.  The feed rate of both holes  must be set to the same value, since both spindles go down at the same  speed.  The forward speed is set in such a way that the speed  total metal removal does not exceed 1.50 in3  /min.  Determine: a) the velocity  maximum feedrate (in/min) that can be used, b) the individual feedrates  (in/rev) that result in each hole and c) the time required to drill the  holes.
A mild steel specimen of Initial diameter of 53.5 mm is turned to final diameter of 47 mm for an initial length of 154 mm on a lathe machine. Using the given data find the following. (i) Feed of 0.4 mm/rev & Depth of cut is 0.5 mm (ii) During machining the tool's approach length is 5 mm, over run length is 2mm (iii) Total time required to complete the turning operation is 59.6 minutes
I need steps 6 and 7 answered for me.
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