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

Explain interference between two mating gears, What do you understand by in...

What do you understand by interference between two mating gears ? if interference between two involutes gears is to be avoided then show that the maximum length of arc of contact w

Special commands for cad, Throughout this project, you'll find questions th...

Throughout this project, you'll find questions that will direct you to think about how you're creating the drawing. Although you should not submit the answers to these questions, a

Types of belt drive used for power transmission, Q. Explain the types of be...

Q. Explain the types of belt drive used for power transmission? Also derive the velocity ratio of them. Sol:   There are mainly three types of belt drive: (1) Open belt driv

Polythionic Acid Stress Corrosion Cracking, In Naphtha Hydrotreating Unit, ...

In Naphtha Hydrotreating Unit, does feed/effluent heat exchangers require passivation to avoid polythionic acid stress corrosion cracking.

Tungsten inclusions, Tungsten Inclusions Tungsten inclusion is a disconti...

Tungsten Inclusions Tungsten inclusion is a discontinuity found only in TIG welding. Particles of tungsten from the electrode can be embedded in a weld when improper welding proc

Determine the value of the maximum shear stress, Determine the value of the...

Determine the value of the maximum shear stress: A circular beam of 100 mm diameter is subjected to a shear force of 5 kN. Determine the value of the maximum shear stress & al

What is the initial velocity of the ball, What is the initial velocity of t...

What is the initial velocity of the ball: A ball is horizontally thrown from the top of a building 60 m height, hits the horizontal ground 25 m from the base of the building a

First law of thermodynamics, common formula for first law of thermodynamics...

common formula for first law of thermodynamics #Minimum 100 words accepted#

Determine thermal contact resistance, Derive the mathematical Heat Conducti...

Derive the mathematical Heat Conduction equation through a composite wall. Determine Thermal contact Resistance ?

Find out the axial moment of inertia, Find out the axial moment of inertia:...

Find out the axial moment of inertia: Find out the axial moment of inertia of a rectangular area of base b and height d around centroidal axis GX and the base B 1 B 2 . So

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