For a fruit juice, shear stresses are measured by a viscometer as a function of
shear rate (the velocity gradient). When the shear stress in N/m2 is plotted
against the shear rate in the range of 0 to 50 s-1, a straight line having a slope of
0.4 is obtained. What is the viscosity of this fluid when the shear rate is 31.4 s-1?
a) 78.5 Pa. s b) 12.6 Pa. s c) 31.8 Pa. s d) 3.97 Pa. s e) 0.4 Pa. s

Items are similar to the free issue items, but their access is limited. (clo5) a)-bin stock items free issue b)-bin stock controlled issue c)-critical or insurance spares d)-rebuildable spares e)-consumables

The flow rate of air through a through a pipe is 0.02 m5/s. a pitot static tube is placed in the flow. the radius of the pitot static tube is 1 mm. assuming the flow to be steady and the air to be at 300k, calculate the difference in total and static pressure if the diameter of the pipe is: (a) d 0.1 m d 0.05 m (c) d 0.01 m

Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.