pneumatic and hydraulic I need solution for this equations

1) the reason whey fluid power is used to perform heavy work is A ) reliability b. stiffness crigidity d. non of above 2) the measure of sluggishness in fluid is a) viscosity b. SG c. bulk modulus d. VI 3) when the fluid becomes more incompressible the bulk modulus a) increase (6.) decreases c . stay const d. none of above 4) when a hydraulic pump delivers fluid at 40Lpm through a 25mm diameter pipe , the fluid velocity is a) 10.2m/s c 16.4m/s : (d) 1.36m/s 5) How much hydraulic power would a pump produce when operating at 140 bas and delivering 0.001 m3/s of oil (a) 14kW b. 8kW c 16kW d. none of above 6) an example of Hydraulic device which creates force is a) Hydraulic motor b. Hydraulic pump C. hydraulic cylinder d. none of above 7) High resistance to flow which causes sluggish operation is a result of (a) high viscosity b. low viscosity c. high temperature d. low temperature 8) A 500cm3 sample of oil is compressed in a cylinder until its pressure is increased from/ Datm to 50 atm. If the bulk modulus equals 1750MPa, the percentage change in volume of the oil is a) 0.0028% b. 0.2828% c. 2.7105% (d) non of above 9) A Hydraulic system is powered by a 5kW motor and operates at 10MPa, assuming no losses the flow rate is (A) 0.000m3/s b. 1.05m3/s c 4.05m3/s d. non of above 10) an example of Hydraulic device which creates Torque is a) Hydraulic motor b. Hydraulic pump c. hydraulic cylinder d. none of above Q2: Compare between pressure relief valve and unloaded valve(symbol, location in the circuit, purpose or function). Q3) Draw the symbols of the following valves Unloading valve, relief valve, Non-Pressure-Compensated Valve, Sequence Valve