Aspherical thermocouple junction is used for temperature measurement in a gas stream. the junction has a diameter of 0.5 mm, k = 35 w/m k, c = 320 j/kg k, and rho = 8500 kg/m3. the convection coefficient between the junction surface and the gas is h = 2.2(v/d)0.5 , and the time for the junction to reach 99% of the initial temperature difference is 5s. what flow velocity can the thermocouple be used for?

Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.

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

What are the two (02) benefits, which may result from a successful implementation of preventive maintenance (pm) program in an organization? (clo3)a)- lean manufacturing b)-overlapping responsibilities c)-the planner is not qualified d)-accurate contractor information e)-reduction in equipment redundancies f)-accurate stores information