Question 2 of 20 : Select the best answer for the question.
2. In a modern construction operation,
the working drawings from which the
structure is built were probably drawn
A. using hand drawing tools.
B. on blue paper.
C. using CAD software.
O D. with blue-ink backgrounds.
O Mark for review (Will be highlighted on
the review page)

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg. k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m. k