Question 1

File arithmetic instructions are designed to perform math operations on single words.

Accepted Answer

A) True 
 B)False

Question 2

There is no limit to the maximum value a PLC math function can store.

Accepted Answer

A) True 
 B)False

Question 3

Assume that the light is to come on after a total count of 120.As a result:

Accepted Answer

A)  the preset counter C5:0 must be changed to 120.
B)  the value in source B of the GEQ instruction must be changed to 120.
C)  the value in source B of the ADD instruction must be changed to 120.
D)  the value in word N7:1 must be changed to 120.E) A) and D)
F) A) and C)

Question 4

The rung logic is telling the processor to divide the value of word N7:4 by the value of N7:6.

Accepted Answer

A) True 
 B)False

Question 5

The program is telling the processor to energize output 0:2/3 whenever the sum of N7:5 and N7:8 is greater or equal to that of N7:4.

Accepted Answer

A) True 
 B)False

Question 6

The number stored in N7:5 would be:

Accepted Answer

A)  1000.
B)  500.
C)  4.
D)  2.E) A) and B)
F) A) and C)

Question 7

Math instructions are all ____ instructions.

Accepted Answer

A)  output
B)  input
C)  binary
D)  BCDE) A) and C)
F) B) and D)

Question 8

What number stored in N7:3 will turn PL1 on?

Accepted Answer

A)  150
B)  100
C)  50
D)  all of theseE) B) and C)
F) All of the above

Question 9

For the program of Figure 11-6,the set-point temperature is set by the number stored in:

Accepted Answer

A)  N7:0.
B)  N7:2.
C)  1:012.
D)  1:013.E) A) and D)
F) A) and C)

Question 10

Destination is where the result of the instruction is stored.

Accepted Answer

A) True 
 B)False

Question 11

The negate instruction is used to change the sign of a number.

Accepted Answer

A) True 
 B)False

Question 12

Assume the set-point temperature is changed to 200 °\degree° F.As a result,the number stored in N7:0 would be:

Accepted Answer

A)  2.
B)  4.
C)  6.
D)  8. E) B) and C)
F) A) and D)

Question 13

Assume the accumulated count of counter C5:0 and C5:1 to be 124 and 248,respectively.As a result:

Accepted Answer

A)  the number 372 will be stored in word N7:1 and output PL1 will be energized.
B)  the number 372 will be stored in word N7:1 and output PL1 will not be energized.
C)  the number 350 will be stored in word N7:1 and output PL1 will be energized.
D)  the number 350 will be stored in word N7:1 and output PL1 will not be energized.E) C) and D)
F) None of the above A

Question 14

Assume output 0:3/2 is energized and the values of the numbers stored in words N7:0 and N7:1 are 500 and 40,respectively.The value of the number stored in word N7:8 would be 13.

Accepted Answer

A) True 
 B)False  True

Question 15

The value of the number stored at Destination is:

Accepted Answer

A)  293
B)  -193
C)  51
D)  -342E) B) and C)
F) A) and D)

Question 16

The value of the number stored in 1:012 is:

Accepted Answer

A)  25.
B)  30.
C)  35.
D)  40.E) All of the above
F) None of the above

Question 17

The program is telling the processor to energize output 0:6/2 whenever the value of N7:8 is equal to that of N7:4.

Accepted Answer

A) True 
 B)False

Question 18

The preset full weight of the vessel is changed by changing:

Accepted Answer

A)  the value of the number stored at input 1:012.
B)  the value of source B of the GEQ instruction of rung 3.
C)  the value of source B of the GEQ instruction of rung 5.
D)  the value of the number stored in word N7:1.E) None of the above
F) A) and C)

Question 19

All PLC manufacturers use the same format for math instructions.

Accepted Answer

A) True 
 B)False  False

Question 20

Rung No.2 will be true:

Accepted Answer

A)  at all times.
B)  when the number stored in word N7:1 is equal to 48.
C)  when the number stored in word N7:1 is less than 48.
D)  when the number stored in word N7:1 is greater than 48.E) A) and D)
F) B) and C)

Exam 11: Math Instructions

File arithmetic instructions are designed to perform math operations on single words.

Correct AnswerverifiedShow Answer

There is no limit to the maximum value a PLC math function can store.

Correct AnswerverifiedShow Answer

Assume that the light is to come on after a total count of 120.As a result:

Correct AnswerverifiedShow Answer

The rung logic is telling the processor to divide the value of word N7:4 by the value of N7:6.

Correct AnswerverifiedShow Answer

The program is telling the processor to energize output 0:2/3 whenever the sum of N7:5 and N7:8 is greater or equal to that of N7:4.

Correct AnswerverifiedShow Answer

The number stored in N7:5 would be:

Correct AnswerverifiedShow Answer

Math instructions are all ____ instructions.

Correct AnswerverifiedShow Answer

What number stored in N7:3 will turn PL1 on?

Correct AnswerverifiedShow Answer

For the program of Figure 11-6,the set-point temperature is set by the number stored in:

Correct AnswerverifiedShow Answer

Destination is where the result of the instruction is stored.

Correct AnswerverifiedShow Answer

The negate instruction is used to change the sign of a number.

Correct AnswerverifiedShow Answer

Assume the set-point temperature is changed to 200 °\degree° F.As a result,the number stored in N7:0 would be:

Correct AnswerverifiedShow Answer

Assume the accumulated count of counter C5:0 and C5:1 to be 124 and 248,respectively.As a result:

Correct AnswerverifiedA

Assume output 0:3/2 is energized and the values of the numbers stored in words N7:0 and N7:1 are 500 and 40,respectively.The value of the number stored in word N7:8 would be 13.

Correct AnswerverifiedTrue

The value of the number stored at Destination is:

Correct AnswerverifiedShow Answer

The value of the number stored in 1:012 is:

Correct AnswerverifiedShow Answer

The program is telling the processor to energize output 0:6/2 whenever the value of N7:8 is equal to that of N7:4.

Correct AnswerverifiedShow Answer

The preset full weight of the vessel is changed by changing:

Correct AnswerverifiedShow Answer

All PLC manufacturers use the same format for math instructions.

Correct AnswerverifiedFalse

Rung No.2 will be true:

Correct AnswerverifiedShow Answer

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Assume the set-point temperature is changed to 200 $\degree$ F.As a result,the number stored in N7:0 would be: $Assume the set-point temperature is changed to 200 \degree F.As a result,the number stored in N7:0 would be: A) 2. B) 4. C) 6. D) 8.$

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A

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True

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False

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