Water flows through a tube with a mean velocity of 0.2 m/s. the mean inlet temperature is 20°c and the inside diameter of the tube is 0.5 cm. the water is heated with a uniform surface heat flux of 0.6 w/cm^2. determine:
a) the length required for the outlet temperature to reach 80°c.
b) surface temperature at the outlet.

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

What precautions should you take to prevent injuries when dealing with heavy loads?

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