A syringe pump is often used to pump small precise volumes of liquids. Imagine you are given a faulty syringe pump to use in the lab. The pump leaks at a rate of 15% whatever the flowrate out of the nozzle Qn. The syringe has a diameter (Ds) of 30 mm, a length of 120 mm and a nozzle diameter (Dn) of 3 mm. For your experiment, a nozzle flowrate of 1 milliliters/s is required. Answer the following questions: Required:
a. At what rate do you need to program the plunger velocity (Vp) to ensure you achieve the targeted flowrate (in mm/s)?
b. How long will you be able to maintain this flowrate (in min)?

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79

Have a greater impact on maintenance productivity than any other support group. (clo5) a)-the top management b)-inventory and purchasing c)-sub-contracting d)-cmms