Blog

A tensile test was performed on a specimen having a circular cross section with a diameter of 0.500 inch. The gage length (the length over which the elongation is measured) is 1.5 inches. For a load of 15.0 kips, the elongation was 0.00805 inches. If the load is assumed to be within the linear elastic range of the material, determine the modulus of elasticity.

A 1/2 in. x 5.0 in. plate is connected to a gusset with four 7/8 in. bolts. Standard sizing is used for the bolt holes. The steel is ASTM A572 Grade 60: Fy = 60 ksi, Fu = 75 ksi. Assume that Ae = An. Compute the design strength for LRFD.

A 3/4 in. x 8 in. plate must resist a service dead load of 32 kips and a service live load of 52 kips in tension. The plate is connected to a gusset with six 1-1/8 in. bolts. Standard sizing is used for the bolt holes. The steel is ASTM A572 Grade 42: Fy = 42 ksi, Fu = 60 ksi. Assume that Ae = An. Using ASD, does the plate have enough strength?

Which of the following theories emphasizes the importance of interaction and communicative competence in second language development?

Which aspect of L1 oral language is likely to have a significant impact on the development of L2 pronunciation and fluency?

ELLs with a high level of oral proficiency in their L1 are more likely to benefit from explicit instruction in English phonics.

I have read the syllabus. I understand that the syllabus is a contract and provides a binding agreement stating the instructor’s expectations, how the student should proceed, and how the instructor will evaluate the student.  

If a material has the ability to stretch or deform before fracturing, it is said to be _______.

People are considered a _______ load.

A flat roof is subject to the following uniformly distributed loads: a dead load of 32 psf (pounds per square foot of roof surface), a roof live load of 14 psf, a snow load of 15 psf, and a wind load of 19 psf downward. If LRFD is used, what is the required nominal strength of the member for a resistance factor φ of 0.75?