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FE Electrical Exam with 100% correct answers Latest Update 2024
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FE Electrical Exam with 100% correct answers Latest Update 2024
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FE Electrical Exam with 100%correct answers Latest Update 2024
define Enthalpy - answer-total energy of a system
Which of the following is true of the electric field intensity about an isolated
point charge?
A. It varies directly as the distance to the charge.
B. It varies inversely as the distance to the charge.
C. It varies directly as the square of the distance to the charge.
D. It varies inversely as the square of the distance to the charge. - answer-
D. It varies inversely as the square of the distance to the charge.
As a professional engineer originally licensed 30 years ago, you are asked
to evaluate a newly developed computerized control system for a public
transportation system. You may accept this project if:
A. you are competent in the area of modern control systems
B. you do not live in the jurisdiction where the transportation system is
being installed
C. your original area of specialization was in transportation systems
D. you have regularly attended meetings of a professional engineering
society - answer-A. you are competent in the area of modern control
systems
The SI system uses (1) for mass and (2) for weight (force). - answer-1)
Kilograms
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,2) Newtons
Mass is a constant property of an object where (1) varies with gravitational
field. - answer-1) weight
What is a metric ton? - answer-A metric ton also known as a tonne, is 1000
kg
What is a kip? - answer-The abbreviation "kip" is used for "kilo-pound":
1000 pounds of force
What basic SI unit is equal to kg*m^2/s^2 - answer-Kinetic energy is
calculated in SI units as (1/2)mv^2, with units of the joule
Which of the following is false for an identity matrix, I?
(a) I is a square matrix
(b) All entries in I are zero, except the entries whose row and column
numbers are equal
(c) all nonzero entries are equal to 1.
(d) AI=A^-1 - answer-The main property of an identity matrix is that AI=A.
Therefore, choice (d) is false
Which of the following statements is true for a power series with the
general term aix^i?
I. An infinite power series converges to for x<1
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,II. Power series can be added together or subtracted within their interval of
convergence.
III. Power series can be integrated within their interval of convergence
(a) I only
(b) II only
(c) I and II
(d) II and III - answer-Power series can be added together, subtracted from
each other, differentiated, and integrated within their interval of
convergence. The interval of convergence is -1 < x <1. Therefore the
answer is D
What is a matrix? - answer-A matrix is an ordered set of entries arranged
rectangularly and set off by brackets.A matrix itself has no particular value,
it is merely a convenient method of representing a set of numbers.
When can you multiple two matrices together? - answer-A matrix can be
multiplied by another matrix, but only if the left-handed matrix has the same
number of columns as the right-hand matrix has rows.
True or False: Addition and subtraction of two matrices are possible only if
both matrices have the same size and shape? - answer-True
What is an identity matrix? - answer-The identity matrix is a diagonal
matrix, meaning that it is a square matrix with all zero entries except for the
aij entries, for which i=j. All nonzero entries are equal to one, and the matrix
has the property that AI=IA=A
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, The product of a Matrix A and its inverse, A^-1 , is the (1) - answer-1)
identity matrix
A (1) has only magnitude. Mass, enthalpy, density, and speed are
examples of this. - answer-1) scalar
Force, momentum, displacement, and velocity are examples are (1). A (1)
has a specific direction and magnitude. - answer-1) vectors
What is t-test (based on student's t-distribution) useful for?
(a) testing for distribution of outcomes to see if they come from a normal
distribution
(b) determining if the functional is symmetric about zero
(c) comparing values about the mean
(d) determining if the differences between sample means is significant -
answer-The t-test is used to determine if the differences between sample
are significant or merely the result of random variations. The answer is D
The binomial probability function is used when? - answer-The binomial
probability function is used when all outcomes can be categorized as either
successes or failures.
Three nonparallel, nonzero forces act on a rigid body. What must be true of
all of these forces for the body to be in equilibrium?
(a) The forces must be concurrent
(b) The forces must be equal in magnitude but opposite in direction
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