A 100 ohm Class A RTD probe is calibrated at three points for extra precision, with a curve of where:

RTD (T)= RTD0 ((1 + AT+ BT^2 + CT^3 (T-100))

RTD (T) = the RTD element’s resistance in ohms at temperature T

RTD0 = the RTD element’s resistance in ohms at 0°C

T = the RTD element’s temperature in °C

A = 3.9083 x 10-3 /°C

B = -5.775 x 10-7 /°C2

C = 0 if T >= 0°C

IF RTD(T) = 114.65 ohms, what is T in °C? (Type in a one-decimal number)

What is the chief metrological difference between measuring with a microscope and with an electronic comparator? a. the microscope is limited to small workpieces.a. the microscope is limited to small workpieces. c. the comparator can only examine one point on the workpiece. d. the microscope carries its own standard.

An external consultant recommends that a plant installs a bank of capacitors for power factor correction. this will reduce the peak electrical demand charges by an average of 93 kw every month. the plant current pays $13 per kw in peak demand charges. the capacitor bank will include 223 kw of fixed capacitors, and 183 of variable capacitors. the fixed capacitors cost $59 per kw, and the variable capacitors will cost $65 per kw. the consultant charges 21% of the equipment costs to install the capacitors. because this project will reduce the demand for the electric utility, they are prepared to provide a one-time rebate of $42 per kw of reduced demand. what is the simple payback period for this project (in years)?

Ahelical coil spring has a mean diameter of 50 mm, a wire diameter of 5.5 mm and is wound with a pitch of 10 mm. the spring steel has an ultimate strength of 1250 mpa. find the force needed to compress the spring solid and the wire stress in this condition. state whether the spring will return to its initial length.