When current flow is created by moving a conductor through a magnetic field, it is known as:
A. thermoelectricity
B. photoelectricity
C. piezoelectricity
D. electromagnetic induction
Answer: D
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Many states require a registered ____ to approve a design and supervise construction of a home.
A. architect B. civil engineer C. contractor D. building commission
Five mutually exclusive cost alternatives that have infinite lives are under consideration for decreasing the fruit-bruising rates of a thin skin-fruit grading and packing operation (peaches, pears, apricots, etc.). The initial costs and cash flows of each alternative are available. If the MARR is 15% per year, the one alternative to select is:
Rank Alternatives: C, A, B. D, E; perform incremental ROR analysis for n = ? A vs. C: -2000(?i*) + 400 = 0; ?i* = 400/2000 = 20% > MARR; eliminate C B vs. A: -1000(?i*) + 100 = 0; ?i* = 100/1000 = 10% < MARR; eliminate B D vs. A: -3000(?i*) + 300 = 0; ?i* = 300/3000 = 10% < MARR; eliminate D E vs. A: -4,000(?i*) + 700 = 0; ?i* = 700/4000 = 17.5% > MARR; eliminate A Select E
Perform the following binary subtraction:
101 - 11 = ________. A) 111 B) 010 C) 110 D) 001
Define critical point
A) The pressure and temperature where a solid and a liquid have the same properties B) The pressure and temperature where a substance can exist simultaneously as a solid, a liquid, and a gas in thermal equilibrium C) The pressure and temperature at which gas and liquid have the same properties D) The pressure and temperature above which a substance will cease to exist