100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Nccer electrical level 2 module 1 alternating current questions with 100% correct answers updated & verified $7.99   Add to cart
Quickly navigate to
Preview
  2.  
  3. NCCER Electrical
  4.  
  5. NCCER Electrical

Exam (elaborations)

Nccer electrical level 2 module 1 alternating current questions with 100% correct answers updated & verified
 13 views  0 purchase
  • Course
  • NCCER Electrical
  • Institution
  • NCCER Electrical

Nccer electrical level 2 module 1 alternating current questions with 100% correct answers updated & verified

Preview 1 out of 2  pages

Document information

  • August 26, 2024
  • 2
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • nccer electrical level 2 module 1 alternating curr

Written for

  • NCCER Electrical
  • NCCER Electrical

Seller

avatar-seller
KINGNOTES1

Reviews received

Content preview

Electrical level 2 module 1 alternating current

1. What is the step-down turns ratio of a transformer with 200 turns in the
primary and 100 turns in the secondary?: 2:1
2. Opening the secondary circuit of a current transformer under load will
cause a dangerous level of: induced high voltage
3. What is the frequency of an AC waveform that completes 20 cycles per half
second?: 40Hz
4. A circuit has a peak voltage of 275V. What is the average voltage value?:
175V
5. Each of three equal capacitors in series has: one-third the applied voltage
6. The formula for inductive reactance is: XL = 2ÀfL
7. What is the current flow in a purely resistive AC circuit if the resistance is
15 ohms and the voltage is 150V?: 10A
8. If the area of the plates of a capacitor is increased, the amount of
capacitance: increases
9. The self-induced voltage across an inductance is produced by a change
in: current with respect to time
10. A 30-microfarad capacitor is in parallel with a 15-microfarad capacitor. The
total capacitance is: 45
11. One type of nonsinusoidal waveform is the: square wave
12. According to the power triangle, the apparent power is: greater than the
true power
13. A device that uses electromagnetic induction to transfer electrical energy
from one circuit to another is a(n): transformer
14. If a transformer has 200 turns in the primary, 100 turns in the secondary,
and 150VAC applied to the primary, the voltage across the secondary is:
75VAC 15. Transformers in which the primary and secondary voltages are
180 degrees out of phase are known as: unlike-wound transformers 16.
Reactive power is always: 90° out of phase with true power
17. If the time for one cycle is 0.1 second, the frequency is: 10Hz
18. If the phase angles of two sine waves are both 0 degrees, then the waves:
are in phase
19. What is the true power in a 2A series RL circuit with a 100© resistor?:
400W 20. The opposing force that an inductor presents to the flow of
alternating current is called: inductive reactance
21. The power factor can be defined as the ratio of true power to: apparent
power
22. In a circuit that has both capacitance and resistance, the current will lead
the voltage: by some angle between 0° and 90°

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller KINGNOTES1. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $7.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

78998 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$7.99
  • (0)
  Add to cart