Engineering, 19.05.2021 01:20 mason5579
Help I'm timed!! Phase change materials (PCM) react to weather conditions in which of the following ways?
repel moisture to protect the body from inclement weather
provide sun protection to reduce skin damage in sunny weather
store excess heat to warm the body in cold weather
wick moisture to keep the body dry in hot weather
Answers: 2
Engineering, 04.07.2019 18:10
Fluids at rest possess no flow energy. a)- true b)- false
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Engineering, 04.07.2019 18:10
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
Engineering, 04.07.2019 18:10
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)
Answers: 3
Engineering, 04.07.2019 18:10
Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.
Answers: 3
Help I'm timed!! Phase change materials (PCM) react to weather conditions in which of the following...
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