TRUE OR FALSE
For a drilled shaft , the displacement required to mobilize the ultimate capacity of the shaft in a compression test could be as much as 5 times larger than the displacement required in a tension test.
Why or Why not?
TRUE OR FALSE For a drilled shaft , the displacement required to mobilize the ultimate capacity...
Compute the axial capacity of a drilled shaft in a cohesive soil profile. The shaft diameter is 4 ft and the length is 65 ft. The soil profile is: 0–15 ft, c=2200 psf, γ=120 pcf 15–30 ft, c 2700 psf, γ=123 pcf 30–55 ft, c 3250 psf, γ=125 pcf 55–100 ft, c linearly varying with depth from 3250 to 4400 psf, γ=130 pcf The depth of the water table was 15 ft Calculate the ultimate axial capacity in tension (uplift)
True or False 1. For a fatigue failure, a part always fails above the ultimate strength of the material. 2. For a ductile material, the tensile yield strength and the compressive yield strength are not equal 3. Mode I of crack propagation occurs due to compressive stress 4. Distortion energy theory is used to predict failure for brittle materials 5. Temperature does not affect the endurance limit of a material 6. For a fatigue failure, a part always fails above...
1. True or False? The larger the firm's TIE ratio, the less times a firm can pay its interest expenses. 2. True or False? Your firm has a debt to equity ratio of 55%, and its biggest competitor has a debt to equity ratio of 66%. Based on this information, your firm is less levered. 3. True or False? A dividend payout ratio larger than 50% indicates a firm retains more than it pays out to shareholders. 4. True or...
QUESTION 4: Benchmarking refers to the writing off of failed assets. True False QUESTION 5: For firms with inventory, the current ratio will be larger than the quick ratio. True False QUESTION 6: Which of these measures the degree to which the firm uses debt? the current ratio the times interest earned the equity multiplier all of these
Indicate true or false in each of the following statements: A standing wave is the superposition of two waves The beating of two waves can be heard as a much higher frequency than the sum of the two frequencies. The second harmonic is twice times the frequency of the fundamental. Constructive interference occurs when the phase difference of two otherwise identical waves is 2π or multiples thereof. A node is a position on a standing wave of maximum displacement
3. Determine whether the following are true or false and explain why: a) R2 can be negative. b) R2 can be larger than 1. c) Adjusted R2 can be negative. d) Adjusted R2 can be larger than 1. e) suˆ is a measure of out-of-sample fit f) CV is a measure of out-of-sample fit Now consider the following two models: Yi = β0 + β1Xi + ui (M1) Yi = β0 + β1Xi + β2X2 i + ui (M2) 1...
Please select True or false and explain why true or false 1. Game theory is a useful tool only if every player has a “dominant strategy.” 2. Some technologies are characterized for using factors of production in fixed proportions. However, this cannot be captured by a Cobb Douglas production function. 3. A backward bending supply curve will generate two equilibria; one of them will be stable, while the other one will be unstable. 4. In a game, if both players...
True or false and why? 5. The internal rate of return (IRR) is such a discount rate that ensures the sum of present value of the cash outflows (or costs) with the sum of future value of the cash inflows. 6. A basic rule in capital budgeting is that if a projects NPV is larger than or equal to its IRR, then the project should be accepted.
7) Which of the following is true? O The linear coefficient of thermal expansion is unique for each material (material property) O The displacement due to temperature is linearly related to the original length O Stress concentration factors relate the maximum stress to the average stress O Sharp corners should be avoided because they create stress concentrations. O All the above are true 8) Which of the following statements are true? O A simply supported beam which supports a load...
True or False: True or False: If you do not pay your student loans, your wages may be garnished. True or False: The only goal of inventory management is to never suffer a stock-out (i.e., runs out of a product). True or False: You will pay less FICA taxes if you have more dependents. True or False: Actions which increase cash flow will always increase net income. True or False: it is a good idea to purchase an extended warranty...