The passageway between the riser and the main cavity must have a small cross-sectional area to minimize waste of casting metal: True or False

If the sludge concentration in the return sludge line from the secondary clarifier were the same as the MLVSS concentration (XV), would recycle of return sludge increase the SRT?

The combustion chamber has different shapes depending on the make and model of the engine. True or false

Calculate the surface temperature of a black surface, 1.6 m^2 in area if the rate of heat transfer is 632 kW. The Stefan-Boltzmann constant is σ = 5.67 x 10^-8 W/m^2 K^4 a) 1734 °C b) 273 °C c) 1625 K d) 1640 K e) 1682 K

How I do I get nut out of sheets

An electric winch operates on 140 volts [V] and draws 6 amperes [A] of current. The winch has an efficiency of 64 %. The winch is used to lift an object that weighs 510 pound-force [lb Subscript f ] for 11 seconds [s].

The diameter of a cylinder is called the a.) stroke b.) bore c.) principal length d.) radius

Consider the following grooves, each of width W, that have been machined from a solid block of material. (a) For each case obtain an expression for the view factor of the groove with respect to the surroundings outside the groove.

What is the last step to the design process? A: Define the problem B: Present solution C: Evaluate a solution D: Develop a solution

The controller can be considered the brain of closed loop system

What is the main role of matrix in composites! a) - to transfer stress to the other phases b) - to protect phases from environment c) - to reduce the hardness d) - to enhance ductility