Q1

Which of the following are NOT tests which are used to assess the performance of astabilization or solidification process?

a. corrosion test b. EP TOX c. paint filter test d. TCLP

Q2

Given that you receive a dose of radiation of 1 milli-rad, the highest tissue damage wouldresult if the radiation adsorbed was in the form of:

a. Alpha b. Beta c. Gamma d. X-rays e. all the same

Q3

When a radioactive isotope decays by emission of an alpha particle:

a. an element with a lower atomic number results b. the same element with a different molecular weight results c. an element with a higher atomic number results resultsd. there is no change in the element or its molecular weight6.

Q4

When a radioactive isotope decays by emission of a beta particle:

a. an element with a lower atomic number results b. the same element with a different molecular weight results c. an element with a higher atomic number results results

d. there is no change in the element or its molecular weight

Match the following aqueous solutions with the appropriate letter from the column on the right. Assume complete dissociation of electrolytes.

As it relates to the issue of Censorship, match the following acts to the corresponding form of Censorship.

1.Government Monopolization          A. A book is not allowed to be available in a country.
2. Self-Censorship B. You-tube removes content because someone complained

3. Pre-Publication Review                C. Some governments have tight control over what the people can access on the internet.

4. Licensing and registration             D. A license to publish a newspaper is denied

Match the following!

Which of the following statements explains why you cannot cool down your house by holding the refrigerator open?

Select one:

a. Cold air in the cold box will flow into the kitchen but won’t cause a noticeable temperature change.

b. The refrigerator releases heat into the kitchen to keep the cold box temperature cold.

c. Cold air in the cold box will not flow into the kitchen.

d. The refrigerator removes heat from the kitchen and then replaces it during a cycle.

Identify 3 important systems associated with boiling water reactors and named the primary purpose of each.

Name the systems that removes impurities from the reactor water

Name the purposes of the off gas system

Identify the plant system designed to maintain or restore core submersion in the event of loss of coolant accident

Identify the source of high radiation levels in the RHR system during system shut down

Name the purposes of the automatic depressurization system

Developing filters using convolution theorem and Fourier Transform.

You have been hired as an Engineering Mathematician at a consulting firm located in Saint Louis. On your first job, you have been asked to mathematically design a frequency filter that removes from a standard beacon signal a periodic interference generated by a rotatory machine located in the basement of the company. Please see below for more details: Let s(t) be the standard beacon signal that is being communicated. Below you can find its Fourier Series representation ?(?)=2.5+2 sin(?)+3cos(t)+0.5cos(2?)+ 0.3 sin (2?). The periodic interference is given by ?(?)=0.5 cos (120 ?) and the measurement signal with noise is given as follows: ?(?)=?(?)+?(?) Let g( t) be the filter function and let ? Z(?) be the function that results from applying ? (?) to ?(?). Using the Fourier transform of the convolution theorem, propose the design of a filtering function g(t) which removes from ?(?) the effect of the periodic noise ?(?) assuming that we only know that its fundamental period is equal to 2pi/120. Make sure to write the analytical expression of ?(?) and its Fourier transform. Also, please write the mathematical expression that relates ? Z(?) as a function of ?(?)and ?(?)

28. Add the following methods to the ArrayBoundedStack class, and create a test driver for each to show that they work correctly. In order to practice your array related coding skills, code each of these methods by accessing the internal variables of the ArrayBoundedStack, not by calling the previously defined public methods of the class.

a. String toString()—creates and returns a string that correctly represents the current stack. Such a method could prove useful for testing and debugging the class and for testing and debugging applications that use the class. Assume each stacked element already provided its own reasonable toString method.

b. intsize()—returns a count of how many items are currently on the stack. Do not add any instance variables to the ArrayBoundedStack class in order to implement this method.

c. void popSome(int count)—removes the top count elements from the stack; throws StackUnderflowException if there are less than count elements on the stack .

d. booleanswapStart()—if there are less than two elements on the stack returns false; otherwise it reverses the order of the top two elements on the stack and returns true.

e. T poptop( )—the “classic” pop operation, if the stack is empty it throws StackUnderflowException; otherwise it both removes and returns the top element of the stack.

Suppose you wanted to test a hypothesis that when people pick a number 1 through 10, they pick the number 7 more often than if they were to choose each number with equal probability. You polled 100 people and 15 of them chose the number 7. after finding and labeling the correct test statistic, find and interpret an approximate p value in context, as well as a short conclusion on your findings. also state any assumptions or concerns

Five coins were simultaneously tossed 1000 times and at each toss, the number of heads was observed. The number of tosses during which 0, 1, 2, 4, and 5 heads were obtained are shown in the table below. Convert the given frequency distribution to probability distribution find the expected value.

           Number of heads per toss:             0              1          2          3          4          5

           Number of tosses               :          38         144      342      287     164           25

7.   __________________ representation of a binary number uses the bit following (after)

      the most significant bit as the sign bit, making it possible to determine whether an

      integer is negative or positive.

      A). 2’s complement

      B). 1’s complement

      C). bitwise complement

      D). bitwise negation

8. To obtain the 2’s complement of a binary number, it is necessary to flip (reverse) the

      bits and ___________________________.

      A). subtract 1

      B). divide by 1

      C). complement by 1

      D). add 1

9.   An overflow condition in signed numbers has occurred when ___________________.

     A). the carry into the sign bit is different from the carry out of the sign bit

      B). the carry into the sign bit equals the carry out of the sign bit

      C). the carry into the sign bit is a multiple of 10 of the bit value on the carry out of the

            sign bit

      D). the carry into the sign bit is a negative value

10. Expresed as a series of 8 bits, the binary number that results from the addition of the

     decimal (base 10) numbers 120 and –132 is ___________________________.

      A). 00010100

      B). 01010000

      C). 11110100

      D). 00000011

11. The hexadecimal (base 16) equivalent of the binary (base 2) number 110111110111

       is _________________________.

       A). FE7

       B). DF7

       C). D0E

       D). EAD

12. In the EBCDIC collating sequence, lower case alphabetic characters ‘a’ thru ‘z’ are

      considered to _____________ in value than upper case alphabetic characters A

      thru Z.

      A). be lower

    B). be higher

      C). be equal

      D). have more precision

13. One of the inherent problems with migrating code from EBCDIC-based systems to

      ASCII-based systems is that ____________________________________________.

      A). the executable code will run slower on an ASCII-based system than on an

            EBCDIC-based system

      B). output results from sort routines and SQL queries may differ between the two

            systems depending on the specific database values being processed

      C). system performance bottlenecks will occur when the executable code runs on the

            ASCII-based system that did not exist when the executable code ran on the

            EBCDIC-based system

      D). executable code running on EBDCIC-based systems cannot be optimized to run

            faster.

14. Three common Boolean operators are _________________________________.

       A). ADD, SUBTRACT, and DIVIDE

       B). NOT, DIVIDE, and EXCLUSIVE OR

       C). NOT AND, NOT OR, and EXCLUSIVE OR

       D). AND, OR and NOT

15. When the Boolean operator __________ is applied to a Boolean expression, the result

      is the complement of the expression.

      A). NOT

      B). OR

      C). AND

      D). bitwise complement

16. The basic physical component of a computer is the __________________; the basic

       logic element is the _______________.

       A). motherboard, transistor

       B). transistor, multiplexer

       C). transistor, gate

       D). gate, transistor

17. The rules of precedence of Boolean operations are __________________________.

       A). the OR operator has highest precedence, followed by the NOT operator, then the

             AND operator

       B). the NOT operator has highest precedence, followed by the AND operator, then

             the OR operator

       C). the AND operator has the highest precedence, followed by the OR operator, then

             the NOT operator

       D). the NOT operator has highest precedence only when followed by the OR

             operator

18. A(n) ______________ is an electronic device that produces a result based on two or

      more input values.

      A). gate

      B). arithmetic logic unit

      C). transistor

      D). central processing unit

19. The output of the ________________ Boolean operation is true only when the values

      of the inputs differ.

      A). NOT AND (NAND)

      B). NOT OR (NOR)

      C). EXCLUSIVE OR (XOR)

      D). ANDOR (AOR)