The common type of defects found when soldering on a printed circuit board

5 kg of steam contained within a piston-cylinder assembly undergoes an expansion from state 1, where the specific internal energy is u1 = 2709.9 kJ/kg, to state 2, where u2 = 2659.6 kJ/kg.

Helium in a steel tank is at 250 kPa, 300 K with a volume of 0.1m3. It is used to fill a balloon of helium. When thetank pressure drops to 150 kPa, the flow of helium stops by itself.

In a two-stroke engine, a) the crankcase is sealed b) the outward motion of piston is used to pressurize the air-fuel misture e) the intake and exhaust valves are replaced by opening in lower part or cylinder wall d) all of the mentioned

Consider a 50-mH inductor. a. Express the voltage across the inductor and then evaluate it at t = 0.25 s if iL (t) = 5e - 2t + 3te-2t - 2 A. Be certain to simplify your expression.

Internal flow is one in which the flow is not bounded. a) True b) False

16 Suppose that a steel of eutectoid composition is cooled to 550°C (1020°F) from 760°C (1400°F) in less than 0.5 s and held at this temperature.

The rotor in a shaded pole motor consists of A coils energized by alternating current B a short circuited loop of copper wire c a permanent magnet D an iron cylinder

What factors are likely to promote the formation of stress corrosion cracks?

Find the mass if the force is 18 N and the acceleration is 2 m/s2

Which process must first take place in order for the proteins in foods to be used by body cells? (1) digestion (3) synthesis (2) storage (4) excretion