The manufacturing of brick cannot be fit into the modern "going green" concept.
Answer the following statement true (T) or false (F)
False
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An insulated steam turbine produces 67,000 hp of power. Steam enters the turbine at 2000 psia and 1000°F, with a velocity of 400 ft/s, through a duct with a cross-sectional area of 0.20 ft2. The steam exits with a velocity of 30 ft/s, at a temperature of 420°F. Determine the exit pressure and, if applicable, the exit quality of the steam.
Given: P1 = 2000 psia; T1 = 1000°F; V1 = 400 ft/s; A1 = 0.20 ft2; T2 = 420oF ; V2 = 30 ft/s; W?=67000 hp=47,365 Btu/s; Steam Assume: Q? = 0 (insulated) Also, for a turbine, assume steady-state, steady-flow, single-inlet, single-outlet flow, with ?vPE = 0 What will be an ideal response?
Today, _____ of people make their living producing food and fiber
a. More than 50% c. Less than 2% b. About 25% d. Less than 1%
Which of the following is not a symptom of a heat stroke.
A. Severe Headache B. Mental Confusion C. Seizures D. Cold clammy skin
Parallel circuits containing inductors and capacitors may be analyzed with vector diagrams; the vectors used are ____ vectors.
A. inductance B. capacitance C. current D. voltage