Concepts Flashcards
(Differential Equations) what is the inverse laplace transform of F(s) = (1/(s-3))-(16/(s^2+9))? A. f(t) = e^-3t - 16/3 sin3t B. f(t) = e^3t - 16/3 sin3t C. f(t) = e^-3t - 16/3 cos3t D. f(t) = e^3t - 16/3 cos3t
B
(differential equations) What is the LaPlace Transform of f(t)=1-2e^-2t A. F(s)=1/s - 2/(s-2) B. F(s)=1/s - 2s/(s-2) C. F(s)=1/s - 2/(s+2) D. F(s)=1/s - 2s/(s+2)
C
(integral calculus) it is an approximation of an integral by finite sum a. newton-raphson b. riemann sum c. fundamental theorem d. leibniz sum
B
(Integral Calculus) locate the centroid of a quarter circle of radius r on q1 of the cartesian plane. the center point of the circle is at the origin A. (4r/3pi, 4r/3pi) B. (3pi/4r, 3pi/4r) C. (4pi/3r, 4pi/3r) D. (3r/4pi, 3r/4pi)
A
(Eng’g Econ)
are those products that have an income-elasticity of demand greater than one. this implies that as income increases, more income will be spent on these products. examples are appliances entertain ment vacations etc.
luxury products
(Engineering Economics)
which of the following is false?
A. consumers are the basic consuming or demanding unit of commodities
B. staple products are goods and services desired after all necessities have been satisfied
C. duopsony involves several sellers
D. demand is the need or desire for a certain product with the willingness to pay
B
(Engineering Economics)
considered as the simplest type of business organization wherein the firm is owned and controlled by a single person
sole proprietorship
(Engineering Economics)
refers to the situation where the sales generated is just enough to cover the fixed and variable costs
break-even
(Engineering Economics)
is the worth of the property determined by a disinterested person in order to establish an amount which is fair to both the buyer and the seller
fair value
(Engineering Economics)
is the amount a willing buyer will pay to a willing seller for a property where each has equal advantage and neither one of them is under the compulsion to buy or sell
market value
(Engineering Economics)
is the amount of the property as reflected in the book of records of the company
book value
(Engineering Economics)
is the amount of the property which the owner believed to be it’s worth as an operating
use value
(Engineering Economics)
another word for salvage value
resale value
(Engineering Economics)
refers to the satisfaction or pleasure derived from the consumer goods and services is also missed the power to satisfy human wants and needs
utility
(Engineering Economics)
a market situation where in a given product is supplied by a very large number of vendors and there is no restriction of any additional vendor from entering the market
perfect competition
(Engineering Economy) it is the market situation where the action of one supplier affects the few total suppliers to perform a similar action A. monopoly B. perfect competition C. duopoly D. oligopoly
D
(Engineering Econ) which of the following depreciation methods gives the lowest decrease in book value A. straight line B. declining balance C. sum of years digit D. sinking fund
D.
(SMAT)
another term for circumferential, tangential or hoop stress
girth stress
(SMAT)
refers to the stress beyond which the material will not return to its original shape and the load is removed
elastic limit
(SMAT)
permanent deformation caused by excessive stress
permanent set
(SMAT)
refers to the point where there is an appreciable elongation or yielding of the material even without any corresponding increase of load
yield point
(SMAT)
refers to the highest ordinate in the stress-strain diagram
ultimate stress
(SMAT)
sometimes known as the stress at failure
rapture strength
(SMAT)
actual stress of the material when loaded
working stress
(SMAT)
maximum safe stress that the material can carry
allowable stress
(SMAT)
for symmetrically loaded and simply supported beams, maximum moment occurs at the point where shear is equal to
zero
