CE Board Exam Terms Questions and Answers
Liquid Limit (LL)
water content corresponding to 25 blows or 20 mm penetration of cone
Plastic Limit (PL)
water content wherein a soil starts to crumble when rolled into 1/8 inch diameter thread
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Uniform Arithmetic Gradient - answer a sequence consisting of end-of-period
payments, where each payment increases or decreases by a constant value
Geometric Gradient - answer a sequence consisting of end-of-period payments,
where each payment increases or decreases by a fixed percentage
Capitalized Cost - answer sum of the first cost and the present worth of all future
payments and replacements which is assumed to continue forever
angles - answer space between two rays that extend from a common point called the
vertex
acute - answer angle less than 90 degrees
obtuse - answer angle greater than 90 degrees
straight - answer angle equal to 180 degrees
reflex - answer angle greater than 180 degrees
complementary - answer 2 angles whose sum is 90 degrees
supplementary - answer 2 angles whose sum is 180 degrees
explementary or conjugate - answer 2 angles whose sum is 360 degrees
Period (T) - answer interval over which the graph of a function repeats
Amplitude (A) - answer greatest distance of any point on the graph from a horizontal
line which passes halfway between the maximum and minimum values of the function
Frequency (ω) - answer number of repetitions/cycles per unit of time or 1/T
,characteristic - answer the integral part of a logarithm (e.g. log 4250 = *3* + 0.6284)
mantissa - answer a non-negative decimal fraction part of a logarithm (e.g. log 4250
= 3 + *0.6284*)
Simple discount rate - answer an interest transaction where the price of the
corresponding loan is set down by subtracting the so-called discount from the amount
due (interest in advance)
Inflation - answer increase in the amount of money needed to purchase same
amount of goods or services; results in a decrease in purchasing power
Depreciation - answer decrease in the value of an asset due to usage or passage of
time
Break-even analysis - answer a method of determining when costs exactly equal
revenue
Benefit-Cost Ratio (BCR) - answer attempts to identify the relationship between the
cost and benefits of a proposed project; a value greater than 1 have greater benefits
than costs and if the value is significantly greater than 1, the project should be
considered
benefit - answer net profit or income
Rate of Return - answer break-even interest rate which equates the present worth of
a project's cash outflows to the present worth of its cash inflows; measures the yield as
a percentage of investment over the life of a project
net profit - answer income or savings - expenses
Recovery Period - answer period required to recover the total investment
Minimum Attractive Rate of Return (MARR) - answer a minimum return the company
will accept on the money it invests; same as the interest rate used for present worth,
annual worth, and future worth analysis
Payback Period (Payout Period) - answer length of time required to recover fixed
capital
fixed capital - answer capital which is invested in acquiring fixed assets for business
such as a building, equipment, machinery, etc.
working capital - answer represents the amount of money utilized for financing day to
day business operations
, bond - answer a form of loan: the holder is the lender (creditor), the issuer is the
borrower (debtor), and the coupon is the interest
stock - answer a type of security that signifies ownership in a corporation and
represents a claim on part of the corporation's assets and earnings
sequence - answer a succession of numbers formed according to some fixed rule
series - answer indicated sum of a sequence of numbers
Newton's First Law - answer It states that every body continues in its state of rest or
of uniform motion in a straight line unless it is compelled by an external agency acting
on it.
Newton's Second Law - answer It states that the rate of change of momentum of a
body is directly proportional to the impressed force and it takes place in the direction of
the force acting on it.
Newton's Third Law - answer It states that for every action there is an equal and
opposite reaction.
Principle of Transmissibility - answer According to this law the state of rest or motion
of the rigid body is unaltered if a force acting on the body is replaced by another force of
the same magnitude and direction but acting anywhere on the body along the line of
action of the replaced force.
Parallelogram Law - answer The combined effect of two forces may be represented
by a single resultant force that is equivalent to the diagonal of a parallelogram which
contains the two forces in adjacent legs.
Triangle Law - answer If two forces acting on a body are represented one after
another by the sides of a triangle, their resultant is represented by the closing side of
the triangle taken from first point to the last point.
Stable structure - answer one that will not collapse when disturbed
Stability - answer capability to recover equilibrium
Internally stable - answer A structure that would maintain its shape if all reaction
supports were removed.
External Determinacy - answer All of the external reaction component forces may be
calculated using only static equilibrium.
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