Blog

A1A Corporation uses a predetermined overhead rate based on direct labor-hours to apply manufacturing overhead to jobs. The Corporation has provided the following estimated costs for the next year:       Direct materials $ [DM] Direct labor $ [DL] Rent on factory building $ [rent] Sales commissions $ [comm] Depreciation, factory equipment $ [Fdep] Indirect labor $ [IL] Depreciation, administrative office equipment $ [Adep] A1A estimates that [base] direct labor-hours will be worked during the year. The predetermined manufacturing overhead rate per hour will be:

Which of the following is true about Caesar cipher? (Select all that apply.)

A concrete cube is subjected to biaxial loading. Estimate the compressive strength σ1 if σ2 = 0.5 times the tensile strength, in tension.

The concrete in the core of a spiral column is subjected to a uniform confining stress σ3 of 640 psi. What will the compressive strength σ1 be? The unconfined uniaxial compressive strength is 4,500 psi.

The concrete containing Type I cement in a structure is cured for 4 days at 65°F, followed by 3 days at 39°F. Use the maturity concept to estimate its strength as a percentage of the 28-day strength under standard curing. Maturity is defined as M = Σ(Ti + 50)(ti) where Ti is in degrees F and ti is in days.

A group of 15 tests on a given type of concrete had a mean strength of 4,000 psi and a standard deviation of 800 psi. Does this concrete satisfy the strength requirement for 3,500 psi concrete?

A group of 15 tests on a given type of concrete had a mean strength of 4,000 psi and a standard deviation of 800 psi. Does this concrete satisfy the strength requirement for 3,500 psi concrete?

A group of 15 tests on a given type of concrete had a mean strength of 4,000 psi and a standard deviation of 500 psi. Does this concrete satisfy the strength requirement for 4,500 psi concrete?

The concrete in the core of a spiral column is subjected to a uniform confining stress σ3 of 770 psi. What will the compressive strength σ1 be? The unconfined uniaxial compressive strength is 3,300 psi.

The concrete containing Type I cement in a structure is cured for 3 days at 53°F, followed by 3 days at 62°F. Use the maturity concept to estimate its strength as a percentage of the 28-day strength under standard curing. Maturity is defined as M = Σ(Ti + 50)(ti) where Ti is in degrees F and ti is in days.