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Post Test: Engineering Systems and Technologies
Select the correct answer.
Which formula describes Boyle's law?
OA.
PV = constant, where P= pressure, V= volume
ОВ.
V/T = constant, where V= volume, T = time
O c.
PT = constant, where P= pressure, T = time
OD
P/V = constant, where P= pressure, V= volume
OE.
VT = constant, where V= volume, T = time
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Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.

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.

With increases in magnification, which of the following occur? a. the field of view decreases. b. the ambient illumination decreases. c. the larger parts can be measured. d. the eyepiece must be raised.