Em uma fábrica existe um armazém de produtos perigosos que precisa melhorar a circulação de ar, para garantir situação de conforto e saúde dos trabalhadores. Deverão ser instalados exaustores eólicos. As dimensões do armazém são:

Comprimento: 85m, Largura: 42m e pé direito: 12m.
Arco: Altura: 3m, comprimento: 85m e largura: 42m.

Serão necessários quantos exaustores eólicos?

A)180 B)185 C)190 D)195 E)201

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

Hydraulic fluid with a sg. of 0.78 is flowing through a 1.5 in. i.d. pipe at 58 gal/min. the fluid has an absolute viscosity of 11.8 x 105 lbf-sec/ft2. is the flow laminar, turbulent or within the critical range? give both a numerical reynolds number and a term answer.