A60 w bulb has a cylindrical tungsten filament 4.3 cm in length with an emissivity of 0.47. assuming that conduction and convection losses and re-radiation from the surroundings are all negligible, find the diameter of the filament if it's operating temperature is 1750 °c. assume this temperature to be uniform at all points in the filament at any given time. use 5.67 x 10 w m² k4 for the stefan-boltzmann constant. a) 2.4 mm b) 0.995 mm c) 23.1 mm d) 1.778 mm e) 0.467 mm

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

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options