Precision Machining Technology (MindTap Course List)
2nd Edition
ISBN: 9781285444543
Author: Peter J. Hoffman, Eric S. Hopewell, Brian Janes
Publisher: Cengage Learning
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Textbook Question
Chapter 7.2, Problem 10RQ
Wheel A: 32A60H8V Wheel B: 39C100L6V
What is the abrasive type for each wheel?
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فرع واحد
/ تدلا سؤال/
Q1/Write a notes on heat balance sheet, draw that on the energy flow and enhance your answers
with equations.
2:2
Q2/An indicator diagram taken from a single cylinder four stroke, compression ignition engine has
a length of 100/mm and an area of 2045 mm². The indicator pointer deflects a distance of 10 mm for
a pressure increment of 2 bar in the cylinder. If the bore and stroke of the engine cylinder are both
100 mm and the engine speed is 900 rev/min, calculate the mean effective pressure and the indicated
power. If the mechanical efficiency is 0.75, what is the brake power developed. Draw the indicator
diagram.)
ip or bif
03 A diesel engine develops 5kW. Its indicated thermal efficiency is 0.3 and mechanical efficiency
0.75. Estimate the fuel consumption of engine in (a) Kg/hr (b) liters/hr (c) indicated specific fuel
consumption and (d) brake specific fuel consumption. Take heat value of fuel 42000 kJ/Kg and
density of fuel 0.87…
Chapter 7 Solutions
Precision Machining Technology (MindTap Course List)
Ch. 7.1 - What are three benefits of precision grinding?Ch. 7.1 - What is the major use of the surface grinder?Ch. 7.1 - What are the two spindle types used for surface...Ch. 7.1 - What are the two types of table movements used for...Ch. 7.1 - Label the parts of the surface grinder.Ch. 7.1 - What are three types of cylindrical grinders?Ch. 7.1 - Tool and cutter grinders can be used to _______...Ch. 7.2 - What wheel shapes are commonly used for surface...Ch. 7.2 - What abrasive is commonly used to grind steels?Ch. 7.2 - What abrasive is used to grind nonferrous metals,...
Ch. 7.2 - What does CBN stand for?Ch. 7.2 - What superabrasive is a good choice for grinding...Ch. 7.2 - The grade of a wheel describes its __________ on a...Ch. 7.2 - Prob. 7RQCh. 7.2 - Prob. 8RQCh. 7.2 - Generally, harder wheels should be used to grind...Ch. 7.2 - Wheel A: 32A60H8V Wheel B: 39C100L6V What is the...Ch. 7.2 - Wheel A: 32A60H8V Wheel B: 39C100L6V Which wheel...Ch. 7.2 - Wheel A: 32A60H8V Wheel B: 39C100L6V Which wheel...Ch. 7.2 - Wheel A: 32A60H8V Wheel B: 39C100L6V Which wheel...Ch. 7.2 - Wheel A: 32A60H8V Wheel B: 39C100L6V What type of...Ch. 7.3 - List five surface grinder safety guidelines.Ch. 7.3 - What should be done to every grinding wheel before...Ch. 7.3 - When using a magnetic workholding device, the work...Ch. 7.3 - When using a magnetic chuck to hold a workpiece...Ch. 7.3 - Describe the difference between wheel truing and...Ch. 7.3 - What tool is used to true and dress an aluminum...Ch. 7.3 - How is a CBN wheel trued and dressed?Ch. 7.3 - Depth-of-cut range for surface grinding is: a....Ch. 7.3 - What should be done to a magnetic chuck when it...Ch. 7.3 - What workholding device can extend the magnetic...Ch. 7.3 - What workholding device can be used when grinding...Ch. 7.3 - Briefly describe the method for grinding two...Ch. 7.3 - List three types of workpiece features that can be...Ch. 7.3 - List three possible solutions to eliminate bum...Ch. 7.3 - What can cause scratches on the surface of a...
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- her فرع واحد : he / توك سؤال / Q1/Write a notes on heat balance sheet, draw that on the energy flow and enhance your answers with equations. 2:2 Q2/An indicator diagram taken from a single cylinder four stroke, compression ignition engine has a length of 100/mm and an area of 2045 mm². The indicator pointer deflects a distance of 10 mm for a pressure increment of 2 bar in the cylinder. If the bore and stroke of the engine cylinder are both 100 mm and the engine speed is 900 rev/min, calculate the mean effective pressure and the indicated power. If the mechanical efficiency is 0.75, what is the brake power developed. Draw the indicator diagram. lp or bie 03/A diesel engine develops 5kW. Its indicated thermal efficiency is 0.3 and mechanical efficiency 0.75. Estimate the fuel consumption of engine in (a) Kg/hr (b) liters/hr (c) indicated specific fuel consumption and (d) brake specific fuel consumption. Take heat value of fuel 42000 kJ/Kg and density of fuel 0.87 Kg/liter. n Quiz/(a) A…arrow_forward150 F = 25 kN 25 → 200 25 18 25 -100- 25 25 25 50 T For the bracket and loading condition shown above, determine the smallest size Grade 8.8 metric bolt needed to hold the bracket in place that will still provide a minimum factor of safety of 2 versus the proof strength of the bolt. Assume coarse threads. Neglect the vertical shear on the bolts. All dimensions are in millimeters.arrow_forward⦁ For the specified weld size, calculate the maximum combined shear stress in the weld throat.arrow_forward
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