The following data is provided from a series of tests from two almost identical concrete mixes. The only difference between the two is that one had an air entraining admixture added. Create an appropriate column chart and place it inside the text box, then interpret the data and draw a conclusion as to which mix used the air entraining agent and why this is. Test # 1 2 Mix A-Strength Mix B - Strength (psi)
1 4210 3910
2 4320 4020
3 4180 4180
4 4030 3830
5 3980 3680
6 3220 3420
7 4050 3650
8 3960 3760
9 4140 3860
10 4200 3860

Water at 55c flows across a flat plate whose surface temperature is held constant at 95c. if the temperature gradient at the plate's surface for a given value of x is 18 c/mm, find a) local heat transfer coefficient. b) heat flux

Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer

Liquid flows at steady state at a rate of 2 lb/'s through a pump, which operates to raise the elevation of the liquid 100 ft from control volume inlet to exit. the liquid specific enthalpy at the inlet is 40.09 btu/lb and at the exit is 40.94 btub. the pump requires 3 btu/s of power to operate. if kinetic energy effects are negligible and gravitational acceleration is 32.174 tt/s, the heat transfer rate associated with this steady state process is most closely 1)-2,02 btu/s from the liquid to the surroundings 2)-3.98 btu/s from the surroundings to the liquid. 3)-4.96 btu/s from the surroundings to the liquid. 4)-1.04 btu/s from the liquid to the surroundings.