THE ELECTRICAL NCCER TEST (Electrical Study Guide) QUESTIONS WITH 100- CORRECT ANSWERS.
2 views 0 purchase
Course
NCCER Electrical
Institution
NCCER Electrical
THE ELECTRICAL NCCER TEST (Electrical Study Guide) QUESTIONS WITH 100- CORRECT ANSWERS.
THE ELECTRICAL NCCER TEST (Electrical Study Guide) QUESTIONS WITH 100- CORRECT ANSWERS.
THE ELECTRICAL NCCER TEST (Electrical Study Guide) QUESTIONS WITH 100- CORRECT ANSWERS.
THE ELECTRICAL NCCER TEST ...
THE ELECTRICAL NCCER TEST (Electrical Study
Guide) QUESTIONS WITH 100% CORRECT
ANSWERS.
Which Article of the NEC covers grounding? - correct Answers ✔✔ -article
250
Which of the following is a 90 degree, explosion proof fitting? - correct
Answers ✔✔ -GUAL
What is a dropout plate? - correct Answers ✔✔ -Metal plate with a curved
surface for cable to follow as it passes from the tray
All of the following are common service voltages in the United States
EXCEPT: - correct Answers ✔✔ -372/575 3-PHASE, 4-WIRE
What does a GFCI breaker do? - correct Answers ✔✔ -Opens a circuit to
prevent operation of an electrical device
What will happen when one or more coils in a winding are grounded? -
correct Answers ✔✔ -The motor will automatically blow fuses
Eight incandescent lighting fixtures are to be installed. Each fixture is 120-
volts, with a 200-watt lamp. What is the total connected load? - correct
Answers ✔✔ -13.3 amps
The must be grounded in a bussed gutter if used as the main service
equipment. - correct Answers ✔✔ -Neutral busbar
When wall mounting cable tray, ensure that - correct Answers ✔✔ -The
building structure is strong enough to support the tray system
The purpose of sealing cable ends when reels of cable are in storage is -
correct Answers ✔✔ -To keep moisture from creeping in
The outer covering on liguid-tight flexible metal conduit is used for -
correct Answers ✔✔ -A moisture seal
,A good electrical connection should - correct Answers ✔✔ -Be
mechanically and electrically secure
The symbol normally used for duplex - correct Answers ✔✔ -Circle with
two parallel lines drawb through it
Disconnecting means are covered in - correct Answers ✔✔ -NEC Section
110-22
In relation to switches, the term throw refers to the - correct Answers ✔✔ -
Number of internal operations that a switch can perform
A 3-phase, 4-wire, 480v service requires ______ current transformer(s) -
correct Answers ✔✔ -3
Services conductors and equipment are covered in - correct Answers ✔✔ -
NEC Article 230
The NEC required that all receptacles installed on 25 amp and 20 amp
branch circuits be ______ receptacles - correct Answers ✔✔ -Grounding
A transformer with the primary of 400 turns and a secondary of 300 turns
has a _____ - correct Answers ✔✔ -Step-down turns ratio of 4:3
The circular mil is based on the - correct Answers ✔✔ -Cross-sectional
area of the wire
Of the termination classes listed below, ____ is the only one that provides
a seal against external elements. - correct Answers ✔✔ -Class 1
Unless otherwise noted. the calculations in AC circuits _____ values. -
correct Answers ✔✔ -Rms
When the coil turns are increased the _____ - correct Answers ✔✔ -Induced
voltage is increased
As the temperature surrounding a self-regulating heating cable rises, the
____ - correct Answers ✔✔ -Resistance of the polymeric core increases
The motor type that has the highest starting torque is the ____ motor. -
correct Answers ✔✔ -Capacitor-start
, For a given number of poles, the ____ determines the speed of an AC
motor. - correct Answers ✔✔ -Frequency
Both induction and synchronous motors operate on the principle of a
rotating ____ field - correct Answers ✔✔ -Magnetic
A transformer has 200 turns in the primary, 150 turns in the secondary,
and 120VAC applied to the primary. The voltage across the secondary is: -
correct Answers ✔✔ -90Volts
The output capacity of a motor is rated in - correct Answers ✔✔ -
Horsepower
The synchronous speed at which a pole, 60 Hz induction motor operates is
rpm. - correct Answers ✔✔ -1,800
The sine of 0 degree is - correct Answers ✔✔ -0
Meters used in AC circuits indicate the - correct Answers ✔✔ -Effective
The component labeled 7 in figure 1 is a(n) - correct Answers ✔✔ -End
seal
In an AC circuit containing resistance only _____ will flow if the resistance
is 10 ohms and the voltage is 120V. - correct Answers ✔✔ -12A
The _____ rotor types are generally rugged. - correct Answers ✔✔ -Squirrel
cage
Proofs tests are made at_ of the original factory voltage. - correct Answers
✔✔ -60%
Which type of heating cable cannot be cut and terminated in the field? -
correct Answers ✔✔ -Mineral insulated
The secondary of a CT under load should not be opened because of_. -
correct Answers ✔✔ -Induced high voltage
In a transformer ______ - correct Answers ✔✔ -Electromagnetic Induction
Ocurs
When a ground rod is installed, the top of the rod must be positioned
______ grade. - correct Answers ✔✔ -Flush with or below
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 Wisdoms. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
