what is the difference between electrode and filler in welding process?how do you select proper electrode and filler in your process?

Provide a summary of the ASTM E112–12 standard’s definition of the grain size number G. Your summary should give the precise mathematical definition for G. Your summary should also supply a conceptual description of G; this description should not require significant technical background to understand. • Provide a summary of the Lineal Intercept Procedure described in the ASTM E112–12 standard. Your summary should give sufficient detail that someone could use it to compute the grain size number G without any other information.

Overall what exactly is G? What is ASTM E112-12? What is the lineal intercept procedure?

Solve an equation where the input is a complex number.

s = x + j(3)^0.5*x

Equation: s^3+3*s^2+2s+k = 0

Solve for k and x

An ideal Brayton cycle stationary power plant operates with a pressure ratio of 10 to 1. if it is designed to generate 800 MW of power what is the minimum flow rate required?

Hydraulic excavators always have a 4-bar linkage between the inverted crank-slider mechanism and the bucket. Find a picture from which you can determine if this 4-bar linkage is a triple rocker, a double crank, a double rocker, or a crank-rocke

Consider a fluid flowing perpendicular and over a long cylindrical body and the free stream velocity described by equation U(x) = 2 U_inf sin (x/R) where R=D/2 is the radius of the cylinder.

For a laminar flow in the boundary layer, calculate the local friction factor and heat transfer coefficient as a function of x using momentum and energy integral equations, beginning at x=0 until separation occurs.

Determine the Nusselt number N_UD = hD/k, as a function of phi=x/R, for the Reynolds numbers of R_eD = 40,000 , 70,000, 10,000 and 140,000.

3. Describe step-by-step brittle fracture of some metals and ceramics with poor ductility and toughness. In discussion highlight and use relevant terms such as transgranular, Chevron pattern and others.

Text Book- The Science and Engineering of Materials, Askeland et al. (seven edition

The flow rate of warm air into the air conditioning is 5,000 cfm. An air conditioning system takes outdoor air at 95 degrees F dry-bulb and 70% relative humidity, and discharges it at 60 degrees F dry-bulb and 95% relative humidity. The air conditioning system operates on a vapor compression cycle using R134a between 20 and 200 psia. Refrigerant enters the compressor at 20 degrees F and leaves the compressor at 180 degrees F. Refrigerant enters the evaporator coil at a quality of x = 0.3. Determine a) The quantity of water removed from the air, in lb/min. b) The quantity of heat removed from the air, in tons. c) The mass flow rate of refrigerant, in lb/s. d) The compressor's power requirement, in hp.

fluid mechanics question:

Why do birds have long narrow wings?

A solid sphere of radius R is rotating with angular velocity w (omega) in otherwise still infinite fluid of density p (rho) viscosity u (mu).

(a) For creeping flow assumptions to hold, which condition(s) has to be satisfied?

(b) Under creeping flow assumption, solve the velocity field in the flow. Does the solution still satisfy the creeping flow assumption at the far field?

how do you make an engineering and true stress-strain curve given the displacement (mm) and force (N)

(Chapter 10)

Q: Explain the difference between coarse and fine pearlite?

only for field engineers please: why would you choose to this segment "measurement while drilling"?

why would you choose " well completion"?

(Materials Testing Results)

Q: The 30% rubber group reported Rockwell numbers for fresh 48 hour and old as 12.5,21.5, and 88.5. How do you explain these results?

(Materials Testing Results)

Q: The 30% rubber group reported a strain at yield of 0.38 and a strain at break of 0.3. Please explain this change.