Filters
Question type

Study Flashcards

PLC math functions perform arithmetic on values stored in memory words. Multiple Choice Questions

A) True
B) False

Correct Answer

verifed

verified

In the program shown,the value of the number stored in N7:2 is: In the program shown,the value of the number stored in N7:2 is:   A) 172. B) 601. C) 325. D) 348.


A) 172.
B) 601.
C) 325.
D) 348.

E) A) and B)
F) A) and C)

Correct Answer

verifed

verified

File arithmetic functions are used to perform arithmetic operations on:


A) multiple words.
B) integer numbers only.
C) decimal numbers only.
D) BCD numbers only.

E) A) and B)
F) B) and D)

Correct Answer

verifed

verified

When the Full light is on: When the Full light is on:   A) the weight of the vessel is 500 pounds or more. B) rung No.3 is always true. C) rung No.1 is always false. D) all of these.


A) the weight of the vessel is 500 pounds or more.
B) rung No.3 is always true.
C) rung No.1 is always false.
D) all of these.

E) A) and B)
F) A) and C)

Correct Answer

verifed

verified

PL1 will be on whenever the current temperature is: PL1 will be on whenever the current temperature is:   A) greater than the preset temperature. B) less than the preset temperature. C) greater than the upper temperature limit. D) less than the lower temperature limit.


A) greater than the preset temperature.
B) less than the preset temperature.
C) greater than the upper temperature limit.
D) less than the lower temperature limit.

E) B) and C)
F) A) and D)

Correct Answer

verifed

verified

For the program as shown,output PL1: For the program as shown,output PL1:   A) would be energized. B) would not be energized.


A) would be energized.
B) would not be energized.

C) A) and B)
D) undefined

Correct Answer

verifed

verified

The ability of a PLC to perform math functions is intended to:


A) replace a calculator.
B) multiply the effective number of input and output devices.
C) perform arithmetic functions on values stored in memory words.
D) all of these.

E) A) and C)
F) A) and B)

Correct Answer

verifed

verified

Which of the following numbers stored in N7:3 will cause output PL1 to be energized? Which of the following numbers stored in N7:3 will cause output PL1 to be energized?   A) 048 B) 124 C) 172 D) 325


A) 048
B) 124
C) 172
D) 325

E) None of the above
F) C) and D)

Correct Answer

verifed

verified

Which constant stored in source B of the EQU instruction would turn PL1 on? Which constant stored in source B of the EQU instruction would turn PL1 on?   A) 24 B) 20 C) 6 D) 4


A) 24
B) 20
C) 6
D) 4

E) A) and B)
F) All of the above

Correct Answer

verifed

verified

The number stored in word N7:1 represents the: The number stored in word N7:1 represents the:   A) weight of the empty vessel. B) preset weight of the vessel. C) current weight of the vessel. D) difference between the current and preset weight of the vessel.


A) weight of the empty vessel.
B) preset weight of the vessel.
C) current weight of the vessel.
D) difference between the current and preset weight of the vessel.

E) A) and D)
F) None of the above

Correct Answer

verifed

verified

PLCs can use numerical data from the accumulated values of timers and counters with math functions.

A) True
B) False

Correct Answer

verifed

verified

The number stored in N7:1 represents the: The number stored in N7:1 represents the:   A) upper temperature limit. B) lower temperature limit. C) current temperature of the oven. D) difference between the preset and current temperature.


A) upper temperature limit.
B) lower temperature limit.
C) current temperature of the oven.
D) difference between the preset and current temperature.

E) None of the above
F) A) and B)

Correct Answer

verifed

verified

Assume the upper and lower temperature limits are programmed for 2% instead of 1% and the preset is 400 Β°\degree F.As a result,the number stored in N7:2 would be:  Assume the upper and lower temperature limits are programmed for 2% instead of 1% and the preset is 400 \degree F.As a result,the number stored in N7:2 would be:   A) 392. B) 390. C) 388. D) 386.


A) 392.
B) 390.
C) 388.
D) 386.

E) A) and B)
F) A) and C)

Correct Answer

verifed

verified

The value of the number stored at Source B is: The value of the number stored at Source B is:   A) N7:8 B) N7:16 C) 328 D) 528


A) N7:8
B) N7:16
C) 328
D) 528

E) A) and B)
F) A) and D)

Correct Answer

verifed

verified

The rung logic is telling the processor to multiply the values stored in word N7:2 and N7:1. The rung logic is telling the processor to multiply the values stored in word N7:2 and N7:1.

A) True
B) False

Correct Answer

verifed

verified

The amount of overfill weight required to trigger the alarm is changed by changing: The amount of overfill weight required to trigger the alarm is changed by changing:   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.


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) All of the above
F) C) and D)

Correct Answer

verifed

verified

The value of the number stored in N7:1 is: The value of the number stored in N7:1 is:   A) 90. B) 45. C) 35. D) 60.


A) 90.
B) 45.
C) 35.
D) 60.

E) A) and C)
F) None of the above

Correct Answer

verifed

verified

When the input goes true,the value will be stored in F8:1 will be 24.8. When the input goes true,the value will be stored in F8:1 will be 24.8.

A) True
B) False

Correct Answer

verifed

verified

Integer files are used to store numerical data that are used by math functions.

A) True
B) False

Correct Answer

verifed

verified

Showing 41 - 59 of 59

Related Exams

Show Answer