Engineering Answers

A 3.0 m long spreader, solid cross section with both ends pinned connection to wire rope carry a load of 10000kg. The material is AISI 1060 carbon steel. With factor of safety, 12 determine the following: a) Minimum dimensions of a square, solid cross section is permitted without having failure? (10 marks) b) Minimum dimensions of a square, hollow cross section with thickness of 5.0 mm without having failure? 

Documents The United Nations Organization released an official document regarding the most important events from the beginning of time (dated 00-00-0000) with a brief description of the events. The date of all the events is mentioned in the 'DD-MM- YYYY format. Find the total number of distinct years referenced in the document,

An Autonomous Landmine Sweeper is required to search and detect 8 landmines each of area 30 cm² placed in a circular surface area as shown in picture below. The circular test area is 165 cm diameter. While the Vehicle dimensions are 16 cm width and 22 cm length

Explain the general ac equivalent circuit operation conditions of Common Emitter

Fixed Biased Amplifier configuration as shown in Figure Q1.

A certain ideal gas has a constant R = 38.9 ft-lf f/lb m-R with k = 1.4. a) If 3 lb m of this gas undergoes a reversible nonflow constant volume process from 120 psia,740 oF to 140 oF find P2, ∆U, ∆H, Q, Work. b) If the process in “a” had been steady flow find work and ∆S.

In the spring system as shown in the figure below, each spring constant is ki=k2=1000 N/mm, k3=500 N/mm, k4=200 N/mm, and the applied load is F2=500 N, F300 N. (1) Find the stiffness equation of the spring system (KU=F). (2) Find the displacement of node 2 and node 3

The armor of a tank can be simulated by a slab of thickness L= 152mm (6in) that is insulated on the right hand side as shown in the Figure A below. The slab is infinite in the y-direction. The left hand side is exposed to enemy fire, that is, an explosion at the surface of the slab. The explosion can be simulated by a surface temperature that varies as shown in Figure B. For the time t>2b the left hand side can be considered as insulated. You are asked to find a) the temperature distribution in the slab, that is T(x,t) for the small time, that is t<2b. b) the temperature in the slab, T(x,t) for large time that is t>>2b c) Determine the length L of the slab such that the temperature does not exceed 150 F after 100 seconds Use a) carbon steel and b) Ni-Cr alloyed steel Tmax= 1500 F; b=1sec; The initial temperature of the slab is 80F a) kst= 43 W/m.K (high k) ρ=7801 kg/m3 cp=473 J/kg.K b) kNi-Cr= 19 W/m.K (low k) ρ=7865 kg/m3 cp=460 J/kg.K L Figure 1 B,Tmax (b,0) 0 T t (2b,0

Briefly explain what results in Self-admitted Technical Debt and how it affects the software development lifecycle.