A 1000 KVA three phase transformer has a secondary voltage of 208/120. What is the secondary full load
amperage? - Correct Answer
A 1500 KVA three-phase transformer has a secondary voltage of 480/277. What is the secondary full load amperage - Correct Answer
A conductor with 220 mils ...
Electrical NCCER test
A 1000 KVA three phase transformer has a secondary voltage of 208/120. What is the secondary full load
amperage? - Correct Answer
A 1500 KVA three-phase transformer has a secondary voltage of 480/277. What is the secondary full load amperage
- Correct Answer
A conductor with 220 mils of insulation would have insulation thickness of: - Correct Answer 0.22"
A current transformer has a rating of 4000:5. If 2000 amps load is on the primary, the secondary output would
produce: - Correct Answer 2.5 amps
A lightning outlet symbol in the shape of a circle indicated a: - Correct Answer incandescent fixture
A material with poor electrical conducting properties is a good - Correct Answer insulator
A megohmmeter will be used to check a cable. The electrician MUST be sure that the circuit is - Correct Answer de-
energized and locked, tagged out, and tested.
A protective device for limiting voltage spikes by discharging or bypassing surge current is called a: - Correct Answer
surge limiter
A UL listed rod type grounding electrode must have a minimum length of: - Correct Answer 8'
A voltage source of a circuit provides 240 volts and draws 48 amps. How much resistance is in the circuit? - Correct
Answer 5 ohms
ALL multimeters are capable of measuring: - Correct Answer current, voltage, and resistance
All of the following are common service voltages in the United States Except: - Correct Answer 372/575 three-phase,
four-wire
An auxiliary holding contact (seal-in) on a NEMA starter is indicated by the terminal marking: - Correct Answer A1 &
A2
An electrician that attempts to install or remove energized fuses will be exposed to the risk of an electrical shock and
an electrical: - Correct Answer arc.
An insulator resistance tester is also known as a: - Correct Answer megohmeter
Applications for heat tracing systems with self regulating control include those requiring a narrow operating range
and: - Correct Answer temperature sensitive fluids
As the ambient temperature surrounding a self-regulating heating cable gets warmer, the resistance: - Correct
Answer decreases slightly
As the load decreases on a squirrel cage induction motor, its power factor: - Correct Answer increases
As the mechanical load increases on a squirrel cage induction motor: - Correct Answer torque decreases and stator
current increases
Eight incandescent lightning fixtures are to be installed. Each fixture is 120 volts, with a 200-watt lamp. What is the
total connected load? - Correct Answer 13.3 amps
Electrical gloves should be inspected before each use to determine: - Correct Answer the maximum voltage they can
stand
The benefits of buying summaries with Stuvia:
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
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
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 chaserdreamer. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
