Engineering

Doubling the diameter of a solid, cylindrical wire doubles its strength in tension. True False
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What is projectile motion
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A circular pipe forms a barrier between water and oil and is 6 m long
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On the inner surface of the cylinder, the third principal stress is not zero. The third principal stress acts in the radial direction. Determine the third principal stress. Include the proper sign for your value.
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Inches of mercury is something that would only be used in America. Elsewhere in the world, the mercury height would be in millimeters, or about 760mm (76cm). Mercury has a density of about 13.56 g/cm3, or in other words, each cm of mercury weighs about 13,300 dynes. So 760mm of mercury weighs 1,013,000 dynes. 1 mb is 1 dyne/cm2, so what is the air pressure in mb
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Mention verious medium level and higher level human resources related to engineering
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A piece of coaxial cable has 75ohms Characteristics impedance and a nominal capacitance of 69pF/m. what is its inductance per meter ? If the diameter of the inner conductor is 0.584mm, and the dielectric constant of the insulation is 2.23, what is the outer diameter of the conductor ?
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EnQueue(X): Thm phn t X vo QueueDeQueue() : Ly 1 phn t ra khi QueueHy cho bit phn t u ca Queue c gi tr bng bao nhiu sau khi thc hin ln lt cc php ton sau:EnQueue(1); EnQueue(2); DeQueue(); EnQueue(3); EnQueue(4); DeQueue(); DeQueue();
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Two engineers are to solve an actual heat transfer problem in a manufacturing facility. Engineer A makes the necessary simplifying assumptions and solves the problem analytically, while engineer B solves it numerically using a powerful software package. Engineer A claims he solved the problem exactly and, thus, his results are better, while engineer B claims that he used a more realistic model and, thus, his results are better. Will the experiments prove engineer B right
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Wave flow of an incompressible fluid into a solid surface follows a sinusoidal pattern. Flow is two-dimensional with the x-axis normal to the surface and y axis along the wall. The x component of the flow follows the pattern u = Ax sin (2t/T)Determine the y-component of flow (v) and the convective and local components of the acceleration vector.
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Calculate the minimum area moment of inertia for a rectangular cross-section with side lengths 6 cm and 4 cm.
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A heating system must maintain the interior of a building at TH = 20 C when the outside temperature is TC = 2 C. If the rate of heat transfer from the building through its walls and roof is 16.4 kW, determine the electrical power required, in kW, to heat the building using (a) electrical-resistance heating, (b) a heat pump whose coefficient of performance is 3.0, (c) a reversible heat pump operating between hot and cold reservoirs at 20 C and 2 C, respectively.
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Make a sketch of a simple mechanically expanded brake and indicate the forces acting on the leading shoe when the brake is applied.
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Suppose you want to go from Dhaka to Chittagong, then to Coxs Bazar. You cantravel from Dhaka to Chittagong by bus or by train. From Chittagong, you can take a bus toCoxs Bazar. The ticket price for bus and train are given below Dhaka to Ctg Bus = 1200/-Dhaka to Ctg Train = 1000/-Ctg to Coxs Bazar Bus = 250/-Now choose the least expensive method for you to travel by writing a program in C.
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An unconstrained 10mm thick plate of steel 100mm on a side with a 25mm diameter hole in the center is heated from 20 degrees C to 120 degrees C. The linear CTE is 12x10-6/C. What is the final diameter of the hole
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PLS HELP METhe Euler buckling load of a 160-cm-long column will be _____ times the Euler buckling load of an equivalent 120-cm-long column.1.780.560.752.371.330.42Calculate the minimum area moment of inertia for a rectangular cross-section with side lengths 3 cm and 8 cm.201 cm418 cm4128 cm44 cm424 cm4
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2. A general needs to take his troops across the river. He spies two boys with a small boat. He commandeers both the boat and the boys. Unfortunately, the boat will only hold two boys or one soldier. Yet he determines a method for getting his troops across. What could it be?
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How would you describe what would happen to methane if the primary bonds were to break?
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Deidre has just moved from the sales department into the finance department. On her first day in her new role, she receives an e-mail with a list of systems that she should become familiar with. She tries to access the first system on the list and gets an access denied error message. Which of the following is the most likely reason why?a. The certificate associated with her account has expired.b. Her user account's password coincidentally has expired.c. Her account has been locked due to too many failed login attempts.d. The company uses role-based access control and her user account hasn't been migrated into the correct group(s) yet.
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A magnesium oxide component must not fail when a tensile stress of 14 MPa is applied. Determine the maximum allowable surface crack length if the surface energy of magnesium oxide is 1.0 J/m2. The modulus of elasticity of this material is 225 GPa.
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c. Assuming a fixed-priority scheduling. Consider two tasks to be executed periodically on a single processor, where task 1 has period p= 4 and task 2 has period p= 6. If execution time of task I be e;=1 Find the maximum value for the execution time e2 of task 2 such that the Rate Monotonic (RM) schedule is feasible.
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Karl and Susan have agreed to come to our party, _______ has made Maria very happy. that which what who
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If a cylindrical part with a length of 20 mm and a diameter of 20 mm is to be machined to a cylindrical part with 18 mm in diameter with the same length. The machine has a mechanical efficiency of 50% and a power of 80 kW. If the cutting rake angle is 0 degrees and the cutting tool is made of uncoated carbides and the cutting speed is 10 m/s. What material can we choose for the cylinder
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A gas tank is known to have a thickness of 0.5 inches and an internal pressure of 2.2 ksi. Assuming that the maximum allowable shear stress in the tank wall is 12 ksi, determine the necessary outer diameter for the tank. Assume that the tank is made of a cold drawn steel whose elastic modulus is 35000 ksi and whose Poisson ratio is 0.292. If y
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