B: A chain of mass 18 Kg/m and a length of 30m hangs vertically. How much
work is done upwinding the chain on the drum.
Calculate the quantity of heat required to raise the temp. of 6 Kg of steel
from 10°C to 25 °C. Take SHC of steel to be 4190 J/Kg °C.
How much mass of cobalt can be raised from 293K to 343K supplied w
60 Kilojoules of heat given SHC of cobalt is 450J/kg°C.

Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2

Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation

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