×
Follow Us
Page 1 of 2 12 LastLast
Results 1 to 10 of 12

Number of cycles completed in one second

 Jump to latest post
Page 1 of 2 12 LastLast
    #1
  1. Join Date
    Apr 2020
    Posts
    6
    Reputation

    Number of cycles completed in one second

    2. The number of cycles completed in one second is called the
    Your Answer: hertz
    marked incorrect

    Hertz A unit of measure for frequency. Replacing the earlier term of cycle per second (cps).
    Definition from this web site.

  2. #2
  3. jerrevd is offline Junior Member Pro Subscriber
    Join Date
    Jun 2020
    Posts
    1
    Reputation
    Quote Originally Posted by RabbleRabble View Post
    2. The number of cycles completed in one second is called the
    Your Answer: hertz
    marked incorrect

    Hertz A unit of measure for frequency. Replacing the earlier term of cycle per second (cps).
    Definition from this web site.
    Correct answer is "frequency", not "hertz"

  4. #3
  5. Kalbi_Rob's Avatar
    Kalbi_Rob is offline Experienced Member Pro Subscriber
    Join Date
    Feb 2018
    Location
    Richmond, VA
    Posts
    187
    Reputation
    Quote Originally Posted by RabbleRabble View Post
    2. The number of cycles completed in one second is called the
    Your Answer: hertz
    marked incorrect

    Hertz A unit of measure for frequency. Replacing the earlier term of cycle per second (cps).
    Definition from this web site.
    jerrevd is correct:

    Frequency The number of cycles per second. Measured in Hertz. If a current completes one cycle per second, then the frequency is 1 Hz; 60 cycles per second equals 60 Hz.

    Hertz is a unit of measurement.

  6. #4
  7. Join Date
    Apr 2020
    Posts
    6
    Reputation
    Quote Originally Posted by Kalbi_Rob View Post
    jerrevd is correct:

    Frequency The number of cycles per second. Measured in Hertz. If a current completes one cycle per second, then the frequency is 1 Hz; 60 cycles per second equals 60 Hz.

    Hertz is a unit of measurement.
    Frequency is the rate at which something occurs or is repeated over a particular period of time or in a given sample. It is not the rate at which something occurs "per second" unless further explained as such. If you read the question It specifically calls out a defined time of one second. Were frequency can be expressed in any amount of time. EX: the frequency of (cycles per min) equals 3600. the frequency of (cycles per second) equals 60.
    My point is the denominator when defining frequency is a variable not one second. The denominator in the unit Hz is defined as one second.

  8. #5
  9. Join Date
    Jun 2020
    Location
    Pakistan
    Posts
    6
    Reputation

    Power Produced in one complete cycle

    Quote Originally Posted by Kalbi_Rob View Post
    jerrevd is correct:

    Frequency The number of cycles per second. Measured in Hertz. If a current completes one cycle per second, then the frequency is 1 Hz; 60 cycles per second equals 60 Hz.

    Hertz is a unit of measurement.
    Hi,
    I hope you are doing well. I am curious to know, how much power does a 2.5MW turbine would produce in one complete cycle? Will it be equal to 2.5MW?

  10. #6
  11. Join Date
    Apr 2020
    Posts
    6
    Reputation
    Quote Originally Posted by Waqas2121 View Post
    Hi,
    I hope you are doing well. I am curious to know, how much power does a 2.5MW turbine would produce in one complete cycle? Will it be equal to 2.5MW?
    A ideal turbine running at 100% producing 2.5M W for one cycle at 60Hz. 2500000 216000= 11.57407 watt hours or 0.01157407 KWh. KWh is a common for expressing power over time. But it could be expressed as Watt (any measure of time).

  12. #7
  13. Join Date
    Apr 2020
    Posts
    6
    Reputation
    Quote Originally Posted by RabbleRabble View Post
    A ideal turbine running at 100% producing 2.5M W for one cycle at 60Hz. 2500000 216000= 11.57407 watt hours or 0.01157407 KWh. KWh is a common for expressing power over time. But it could be expressed as Watt (any measure of time).
    Thats not why you asked that tho is it. Were you making a point about cycles and frequency?

  14. #8
  15. SecondGen's Avatar
    SecondGen is offline
    I push buttons.
    NETA Level III Pro Subscriber
    Join Date
    Jan 2014
    Location
    United States
    Posts
    421
    Reputation
    Given that the question ends with the statement "the," it wouldn't make sense to say "the hertz" as it would to say "the frequency." Try not to overthink the question and go with what makes sense.

  16. #9
  17. Join Date
    Jun 2020
    Location
    Pakistan
    Posts
    6
    Reputation
    Quote Originally Posted by RabbleRabble View Post
    A ideal turbine running at 100% producing 2.5M W for one cycle at 60Hz. 2500000 216000= 11.57407 watt hours or 0.01157407 KWh. KWh is a common for expressing power over time. But it could be expressed as Watt (any measure of time).
    Why you divided it by 216000? I mean it is what quantity?

  18. #10
  19. Join Date
    Apr 2020
    Posts
    6
    Reputation
    Quote Originally Posted by Waqas2121 View Post
    Why you divided it by 216000? I mean it is what quantity?
    You asked a question about power over time. 60Hz = 60cycles per second. 60 seconds in one min 60 min in one hour. 60X60X60 = 216000 cycles per hour. So 2.5 MW for one hr = 2500 KWH. Divide that by 216000 gives you KW for one cycle at 60Hz.

Page 1 of 2 12 LastLast
Subscribe

Login or register to leave a reply!


Share this thread

Related Topics

  1. If a breaker is timing at 10 cycles slower than nameplate
    By akumaleon in forum NETA Level 3 Exam
    Replies: 1
    Last Post: February 25, 2020, 08:17 AM
  2. what is the number of questions you can miss on level 3?
    By Bbrown3664 in forum NETA Level 3 Exam
    Replies: 8
    Last Post: January 17, 2020, 10:43 AM
  3. Replies: 4
    Last Post: January 15, 2020, 03:54 PM
  4. CL protective device cycles?
    By Havik21 in forum NETA Level 4 Exam
    Replies: 4
    Last Post: November 2, 2018, 12:36 PM
  5. Test your ANSI device number knowledge with our all new quiz!
    By testguy in forum News and Announcements
    Replies: 0
    Last Post: July 1, 2014, 06:00 AM

Tags for this Thread



Related Content


Follow us


Explore TestGuy


NETA Certification Training


NICET Electrical Power Testing


Help and Support