Acircular shaft with radius r is subjected to a torque, t. the modulus of elasticity and poisson’s ration of the shaft are e and v respectively. show how a single strain gage mounted in the 45o direction with respect to the longitudinal axis can be employed to determine the applied torque. in other words, write t in terms of e, v, r, and e, where e is the reading of the strain gage.

Apiping systems consists of 6 m of 6-std type k and 12 m of 4-std type k, both drawn copper tubing. the system conveys ethylene glycol at a rate of 0.013 m3/s. the pressure drop across the system is to be calculated. there are two 90° elbows in the 6-in pipe, a reduction from the 6-in pipe to the 4-in pipe and four 90° elbows in the 4-in pipe. all fittings are soldered (same as flanged) and regular. the inlet and outlet of the system are at the same height.