Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
1)How do the Rockwell and Brinell tests actually measure hardness ? Give any appropriate sketches and formula. Are there any units involved ? Describe the procedure for teh Rockwell test, explaining the reason for the pre-load ?
2)What is the limitation on the thickness of specimens for a hardness test ? Calculate the minimum thickness for one specimen for the Rockwell and Brinell test ?
3)What are the limimtations for distance from specimen edge to indentation and distance between indentations ? Explain why these limitations exist in both cases.
4)What surface condition is necessary for Brinell, Rockwell and Vickers ?
5)Why is the mean pressure(stress) under the indentor much greater than the yield stress How much greater is it ?
6)What are the advantages of Vickers test aganist Brinell test ?
a a rod of steel 0.5 m long is heated from 20 c to 80 c while its ends are maintained rigid. determine the type and
mr. jones plans to purchase a new 18000 automobile. he wants to borrow all the money for the car and repay it in equal
Air at the rate of 18 kg/s is drawn into the compressor of a jet engine at 55 kPa and -23oC and is compressed reversibly and adiabatically to 276 kPa. Determine the required power input to the compressor expressed in horsepower.
a spacer made of aisi 1020 hot-rolled steel is in the form of a hollow cylinder with a nominal inside diameter of 3.25
how does the statistical mechanical definition of entropy allow a reinterpretation of the second and third law of
A full revolution press has 100 rpm flywheel rotation. The press is equipped with tow hand trip devices mounted on the machine at a distance of 20 inches from the point of operation. How many engagement points on the flywheel would be necessary to ma..
neil a. armstrong was the first person to walk on the moon. the distance between the earth and the moon is 3.85 108 m.
a 15 scale model of centrifugal water pump was tested. the model pump has am impeller diameter of 10 cm and a rotation
A compressor operating adiabatically is to compress 2.83 m^3/min of air at 29.4C and 102.7 kN/m^2 to 311.6kN/m^2. Calculate the power required if the efficiency of the compressor is 75%. Also, calculate the outlet temperature.
when a plastics plant is redesigned a tank exit is now facing the wrong direction and must be connected to a pipe of
the wheel roles without slipping such that at the instant shown it has an angular velocity and angular acceleration.
when the efficiency of an otto cycle will approach that of carnot cycle? even with nest possible arrangements the
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd