User Account

All Pages

mechanics materials , Mechanical Engineering

Assignment Help:
1) Factor of Safety is calculated by using which of the following set of values? [Select the one best answer from the choices given below.]
Answer
a. Yield Stress and Allowable Stress
b. Fracture Stress and Yield Stress
c. Ultimate Tensile Stress and Allowable Stress
d. Ultimate Tensile Stress and Allowable Stress
e. All of the above



2) Centroids deal with the distribution of which of the following? [Select the one best answer from the choices given below.]
Answer
a. mass
b. area
c. weight
d. pressure
e. none of the above



3) Two rods A and B support a 50-lb lamp, as indicated in the picture below. If the same force is developed in each rod (i.e., FA = FB) and the diameter of rod A is larger than the diameter of rod B, which rod will have the greater stress?

Answer
a. Rod A
b. Rod B
c. Both will have equal stress
d. can not be determined with the given information



4) The elastic portion of the tension stress-strain diagram for an aluminum alloy is shown in the diagram below. The specimen used for the test has a gauge length of 2 in. and a diameter of 0.5 in. When the applied load is 9 kip, the new diameter of the specimen is 0.49935 in. Compute the shear modulus G for the aluminum used. (Hint: Calculate the Poisson''s ratio first and then use the equation for shear modulus G = E/[2(1+v)].) [Select the one best answer from the choices given below.]

Answer
a. 45.8 ksi
b. 4380 ksi
c. 5390 ksi
d. 9000 kip
e. 11,700 ksi


5) The A-36 steel plate shown below has a thickness of 12 mm. If there are shoulder fillets at B and C, and the allowable axial (normal) stress is 150 MPa , determine the maximum axial load P that it can support. [Select the one best answer from the choices given below.]

Answer
a. 77 kN
b. 108 kN
c. 151 kN
d. 7.7 MN
e. 15.1 MN



6) Two aluminum rods AB and AC, shown in diagram below, have diameters of 10 mm and 8 mm, respectively. Determine the largest vertical force P that can be supported. The allowable tensile stress for the aluminum is 150 MPa . [Select the one best answer from the choices given below.]

Answer
a. 7.54 kN
b. 8.33 kN
c. 10.7 kN
d. 11.8 kN

Related Discussions:- mechanics materials

Importance of molliers diagram, Describe the key terms i. Write two diff...

Describe the key terms i. Write two differences between turbine and boiler. ii. Write importance of mollier's diagram iii. Compare the rankine cycle with carnot cycle in k

GOVERNORS, Explain Wilson HArtnell Governor

Explain Wilson HArtnell Governor

Dynamics, constraint force

constraint force

Reaction bonding-manufacturing methods of ceramics, Reaction Bonding S...

Reaction Bonding Such bonding is attained by arranging for two or more components of a compacted body to respond to form both a desired phase and a bond among particles. The r

Why we use cold working, Q. Why we use cold working? Cold working takes...

Q. Why we use cold working? Cold working takes place below the recrystallization temperature, and therefore is fundamentally different at the atomic level with effects up to th

Composites , For an automotive component of your choice that is traditional...

For an automotive component of your choice that is traditionally metallic, review how it could be re-engineered as a composite? How factors such as fibre & matrix type, fibre volum

Dual combustion cycle, In an I.C. engine operating on the Dual combustion c...

In an I.C. engine operating on the Dual combustion cycle, the temperature of the working fluid (air) at the beginning of compression is 27ºC. The ratio of the maximum and minimum p

Intrepretation of defects, INTREPRETATION OF DEFECTS Intrepretat...

INTREPRETATION OF DEFECTS Intrepretation is an important factor is controlling the quality of the product on economic levels. Sometimes for want of proper decision, proj

Workplace operations requiring safety, Workplace Operations Requiring Safet...

Workplace Operations Requiring Safety The operations performed through workers in their workplace are of dissimilar nature but they involve a number of machine, equipment and

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

Free Assignment Quote

Assured A++ Grade

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd