37) What is the nominal included angle of a StandardCountersink drilla) 30 Degreesb) 82 Degreesc) 90 Degreesd) 118 Degrees38) Convert 47/64 inch to Millimetersa) 18.653 mmb) 17.830 mmc) 18.550 mmd) 16.852 mm39) Calculate the RPM and Feed Rate for a 1.750 DiameterCarbide 5 toothCutter when machining Cast Iron. Recommended CuttingSpeed is 190FPMFeed per tooth is 0.006 inch.?a) 314 rpm, 9.42 ipmb) 414 rpm, 12.442 ipmc) 514 rpm, 15.42 ipmd) 313 rpm, 13.23 ipm40) What is the reading on the 0-1 inch micrometer?a) 0.625b) 0.635c) 0.638d) 0.61011 TT 71

37) The nominal included angle of a standard countersink drill refers to the angle at which the…

Answered: 37) What is the nominal included angle…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The tool life decreases from 0.8 min to 0.2 min due to the increase in cutting speed from 60 m/min to 120 m/min in a turning operation.Compute is the value of the cutting speed at 0.4 min.a-)Determine the spindle speed in rpm.b-)Find the required power for the unit force.c-)The friction between tool and workpiece varies 0.25-0.35 during the process.d-)Calculate the rate of maximum force to minimum force.
16-18 Answer it correctly and this is Asap I will rate helpful if fast and perfect
42) What are the names given to the three Taps used for Tapping Holes? a) Taper, Plug,Bottoming b) Taper, Fine, Course c) Fine,Course, Bottoming d) Top,Bottoming, Side 43) What does 16 represent for the Notation of 3/8-16UNC- 2A. a) Outside Diameter of a screw b) 16 Threads per Inch c) Fine Thread of the Screw d) Thread Tolerance 44) What does 3/8 represent for the Notation of 3/8-16 UNC- 2A a) Outside diameter of the Screw b) 16 Threads per Inch c) Fine Thread of the screw d) Thread Tolerance 45) Cutting Speed is ? a) The Peripheral distance travelled by The cutter b) The RPM of the Chuck c) The speed of the metal chips being cut d) The Feed Rate
19-21 Answer it correctly and this is Asap I will rate helpful if fast and perfect
Q.B5. a.) In a drilling operation, 3 blind holes needs to be drilled to a depth of 16 mm and a diameter of 8 mm. The point angle is 105° and the drill is made from HSS material. The bench drill allows a fixed speed of 1400 RPM and a feed of 0.1 mm per rev. The work part is mild steel with a thickness of 22 mm. Determine the time required to complete this operation. b.) What are some factors that determine the type of industrial cleaning that will be applied to a part? c.) In mass finishing, two key processes have been discussed - state both the processes here and explain their difference. d.) Draw and explain how a basic heading operation is carried out to produce nails.
A cylindrical mild steel work piece of Ø55 X 200mm undergoes a turning operation on a lathe machine to reduce the diameter to Ø 45mm. The cutting parameters are 23 m/minute, 0.3 mm/ revolution and 0.5 mm are cutting speed, feed and depth of cut respectively. Determine the following. i) Time for single pass (minutes). ii) Find number of passes required to reduce the diameter from Ø55 to Ø45mm. iii) Total time required to complete the turning operation in minutes (Tfinal).
Which option about chief elements in metal cutting is wrong? a)Chip width is the distance between D and d along the cutting surface b)The cutting speed is expressed in mm per revolution c)Feed s is the tool distance moved along the axis per revolution of the work d)Depth of cut t is the distance between D and d
An orthogonal cutting operation is being carried out in which to=0.2 mm, V=2m/s, a=7.5o, and the width of cut=5 mm. It is observed that tc=0.25mm, Fc=400N, and Ft=300N. Calculate the percentage of the total energy that is dissipated in friction at the tool-chip interface. A) 22% B) 50% C) 70% D)None of the above
. In an orthogonal cutting operation, uncut chip thickness t is = 0.127 mm. %3D chip thickness t is = 0.228 mm and rake angle a is = 10°. The shear angle is 1) 20.50 2) 31.250 fand=3casd Joonge-1 3) 40.25° 4) 35.50
6-Internal or external tapers on a turret lathe can be turned by... a) Face turning attachment. b) Taper turning attachment c) Sliding attachment. d) Morse taper attachment. 1
8-In lathe, the carriage and tail stock are guided on... a) Same guideways. b) Different guideways. c) Any of the above. d) Not guided on guideways
Which one of given below is nota chip type? 31 - Aşağıdakilerden hangisi talaş türü değildir? Continuous chip with built-up edge A) yığma kenarlı sürekli talaş Discontinuous chip B) süreksiz talaş Multiple cutting edge chip çoklu kesme kenarı talaşı Serrated chip D) tırtıklı talaş Continuous chip E) sürekli talaş

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