PRE-TEST EIM NC-II
1.
Which of the following is not a type of service
disconnect?
10.
An open circuit occurs in a wiring system
when _____________________.
a. Knife blade switch
b. Fuse block
a. the system is working properly
c. Circuit Breakers
d. Bus Bar
b. a conductor is broken or separated
2.
If a grounded conductor is attached to the
disconnect switch, which type of service disconnect
must be used?
c. a fuse is installed
a. Circuit breakers
b. Knife Blade Switch
11.
Short circuits or grounds can be all of the
following except __________________.
c. Fuse Block
d. None of the above
3.
What is the most frequently used wire size for
interior wiring?
a. 10 AWG
b. 12 AWG
c. 15 AWG
d. 18 AWG
4.
If you have four to six 12 AWG wires in a
conduit, what would be the allowable current-carrying
capacity in percentage to the normal?
a. 50%
b. 60%
c. 70%
d. 80%
d. None of the above
CDA Practice Test
a. Solid
b. Partial
c. Floating
d. Contracted
12.
Which phase is probably open when you test
Phase A and Phase B and get a low voltage reading,
test Phase B and C and get a normal reading and test
Phase A and C and get a low voltage reading?
a. Phase A
b. Phase B
c. Phase C
d. None of the above
13.
In residential buildings, small appliance
loads should have two or more ________________.
5.
If a box is to contain four No. 10 conductors
and two No. 12 conductors, what is the minimum
sized box that can be used in cubic inches?
a. 15 ampere branch circuits
a. 12
b. 13 1/2
c. 40 ampere branch circuits
c. 14 1/2
d. 15
d. 50 ampere branch circuits
6.
A run of electrical conduit may not have more
than _____________ quarter bends between fittings and
outlets?
a. 2
b. 3
c. 4
d. 5
a. Coulomb's Law
b. Kirchhoff’s Law
c. Ohm's Law
d. None of the above
Ohm's law states ____________________.
a. Voltage = amps x resistance
b. Voltage = current / resistance
c. Voltage = watts x current
False
8.
A fuse should be rated higher than the lowest
rated component in a panelboard to be protected.
True
14.
What law would you use to determine the
voltage of a power supply?
15.
7.
The total load on any single overcurrent
device in a panelboard must not exceed 80 percent of
its capacity where the load continues for 3 or more
hours to avoid overheating of the conductor.
True
b. 20 ampere branch circuits
False
9.
Which of the following locations would most
likely require installation of a ground fault circuit
interrupter?
a. living room
b. closet
c. bedroom
d. bathroom
Prepared by: OPHIR M. AYCOCHO
RECE/RME
EPAS/EIM/PVSI NCII - TRAINER
d. Voltage = current/watts
e. None of the above
16.
The amount that a given conductor resists
the flow of electric current is measured in___________.
a. Watts
b. Volts
c. Iambs
d. Coulombs
e. Ohms
17.
Which law holds that like-charged objects
repel and opposite- charged objects attract?
a. Coulomb's Law
b. Kirchoff's Law
c. Ohm's Law
d. None of the above
18.
Direct current can change direction.
True
False
19.
Alternating current changes direction at
which of the following frequencies?
a. 40 Hz
b. 50 Hz
c. 60 Hz
d. 70 Hz
e. None of the above
20.
Electron Theory and Conventional Theory
hold opposite current flow directions.
True
False
21.
Which of the following will not affect the
resistance of a circuit?
a. Length of the Conductor
b. Diameter of the Conductor
c. Insulation of the Conductor
d. Temperature
e. Physical Condition
22.
The greater the resistance, the more power is
dissipated in the form of heat energy.
True
False
23.
Which of the following are a source of
electricity?
a. Friction
b. Heat
c. Light
d. Pressure
e. Chemical action
f. All of the above
24.
In a series circuit, the current has
___________ path(s) to take.
a. 1
b. 2
c. 3
d. 4
e. 5
25.
When connecting a voltmeter lnto a DC
circuit, what should be observed?
a. Power Factor
b. Rms
c. Resistance
d. Polarity
Prepared by: OPHIR M. AYCOCHO
RECE/RME
EPAS/EIM/PVSI NCII - TRAINER