Consider the following bridge circuit where R4 is unknown and needs to be determined.
(1) Determine the value of R4 so that the bridge circuit becomes balanced.
(2) Writing down the expression for the reading of detector voltage Vo in terms of circuit components values (Vb, R1, R2, R3, and R4)
a. What will happen to the detector voltage if the power supply voltage increases?
b. Analyze this expression and determine the value of R4 so that detector voltage being 0.03V.

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

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.

Heat transfer by is the fastest mode of heat transfer that requires no intervening medium. a)-conduction b)-convection c)-radiation d)-conduction and convection