Define the following items?

1-Sensor; 2- Signal conditioner; 3- Zero error; 4- Accuracy; 5- Hysteresis;

Making intricate and very small metal parts by casting is a difficult task. Suggest the casting technique for that and explain the steps in that technique.

CO2: Explain the ethical duties and responsibilities of engineers in society related to legal, management and entrepreneurship aspects

PO9: Apply ethical principles and commit to professional ethics and responsibilities and norms of engineering practice

Apply ethical principles and commit to professional ethics and responsibilities and norms of engineering practice

List the high-level benefits of programming languages and identify the particular language(s) which are most closely associated with each such specific benefit.

HW Problem 5: A 150 kW motor drives a hollow round shaft at 1,200 rpm. The outer diameter of the shaft is 100-mm and the inner diameter is 0.95*outer diameter. It is made of AISI 1050 WQ&T at 425- deg C.

(a) Look online or the book and explain briefly what “WQ&T” in the material designation stand for, and how it is different than OQ&T. Which is stronger at the specified temperature?

(b) Determine the maximum torsional shear stress (Tau max) in the hollow shaft. Write the units. Hint: Use the kW power equation, find torque, and find J to find Tau max. Use N, mm, MPa.

(c) Determine the safety or no safety factor for static loading (ns) according to (i) Tresca theory, and (ii) von-Mises theory. Hint: Read Sy from table and then calculate Ssy by Tresca and von-Mises. Then use (ns,Tresca) = (Ssy,Tresca) / (Tau max); (ns,von) = (Ssy,von) / (Taumax).

(d) If the calculated safety factor is more than 4.0, what parameters would you change to bring it down below 4.0 (and of course, above 1.0)?

A vertical close coiled helical spring must have a stiffness of 4,3 kN/m. The maximum shear stress of 130 MPa is induced by a load of 720 N. With the spring fully compressed, the vertical height over the coils is 250 mm. If G = 79 GPa, calculate:

3.1 the required wire diameter for the spring;

3.2 the mean coil diameter and the number of coils.

To start a three-phase motor, three switches (A, B and C) are required in such a way that its operation occurs only under the following conditions: • When closed only B • When closed only C • When A and B are simultaneously closed and C is not closed • When A and C are simultaneously closed and B is not closed

Whats the difference between fracture surfaces of ductile and brittle materials? Whats the effect of axial load verse torsional load on the fracture surface of ductile and brittle materials.

Air within a piston cylinder assembly executes a Carnot refrigeration cycle between hot and cold reservoirs at TH=500 K and TC=300 K, respectively. The magnitude of the heat transfer rejected to the high temperature reservoir is 250 kJ per kg of air. The pressure at the start of the isothermal expansion is 325 kPa. The air can be modeled as an ideal gas with constant specific heat.
For the air as a system, determine
a. (5) the coefficient of performance.
b. (5) the net work input to the cycle in kJ/kg.
c. (10) the Pv and Ts diagrams for the cycle with arrows showing the directions of the processes.

Çapı 50 mm olan sabit kesitli bir borudan 1.5 m/s hızla su akmaktadır. Boru girişindeki etkin basınç 590 kPa’dır. Borunun çıkışı, girişinden 25 m daha yüksekte ve atmosfer basıncındadır.
(ρsu=1000 kg/m3, g=9.81 m/s2)
a) Borunun giriş ve çıkışı arasındaki yük kaybını bulun. b) Boru yatay bir yüzey üzerine yerleştirilirse, akış hızı ile çıkış basıncı aynı kalacak şekilde giriş basıncını hesaplayın.

Water flows at a speed of 1.5 m/s through a fixed section pipe with a diameter of 50 mm. The effective pressure at the pipe Inlet is 590 KPA. The outlet of the pipe is 25 m higher than its entrance and is at atmospheric pressure.
(psu=1000 kg / m3, g=9.81 m / s2)
a) find the load loss between the input and output of the pipe

b) if the pipe is placed on a horizontal surface, calculate the input pressure so that the flow rate and the output pressure remain the same

A vapor-compression refrigeration cycle working with R22 contains a liquid-to-suction heat exchanger. The saturated liquid refrigerant at 40 ℃ leaving the condenser and entering
the heat exchanger is used to superheat the saturated vapor refrigerant leaving the evaporator at 7 ℃ by 8 ℃. If the compressor is capable of pumping 5 1/s of vapor refrigerant measured
at the inlet to the compressor and the compression processes are considered isentropic in both cases listed below, determine;

(a) The refrigerating capacity in kW, the compressor power in kW, and the COP of the system in the absence of the heat exchanger.
(b) The refrigerating capacity in tons refrigeration, the compressor horsepower, and the COP of the system in the presence of the heat exchanger.

Explain fibers and voids in a microstructure?

An actual Rankine Engine turbo-generator receives steam at a pressure of 10MPa and etropy of 6.931 j/kgK, the steam then expands to 500kPa with a temperature of 250°C and leaves the condenser as a saturated liquid at 150°C.

a. find the engine thermal efficiency of the actual engine

b. The actual steam rate for the engine

c. if the mechanical efficiency is 80% and the generator efficiency is 90%. What is the combined work in kW if mass steam flow rate is 5000kg/hr?