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Chapter Title

Question

11

Alarm Inspections, Testing and Maintenance

How often shall detectors be tested?

9

Conduits, Voltmeters, Ammeter and Ohmmeter

__________ conduit is the only rigid nonmetallic conduit that may be used above ground.

8

Electric Power Conditioning and Mechanical Electrical

Lamp pole for exterior use is located 20 ft. away from the building. What type of raceway would be used?

3

Electrical Branch Circuits

Dual Element Fuse =

13

Electrical Miscellaneous, Conductors, Wires, Panels, EMT and Currents

Regarding wind pressure calculation: Load in Newtons = 0.613 . (V m/s) 2 . kz . GRF. I . Cf . A(m__________)

16

Electrical Systems, Cables, Wires and Electrical Sign Installation

A sign can be used as a pull box or junction box for adjacent signs, outline lighting systems, or floodlights that __________..

7

Electrical Transmission Lines and Communication Lines

A messenger that is effectively grounded throughout its length will have the same clearance from the communications facilities that are required for a neutral conductor meeting regarding Rule __________ in reference to fiber optic supply.

1

Electrical, Connections, Panel Boards and Grounding

What clearance is required for the front of a 208/120 panel?

2

Electrical, Heaters, Conductors, Bonding and Voltage

120/240 V single phase system with single blackredwhite conductors (installed in single conduit) select "single set of conductors", 120/208 V 3 phase system with 2 conductors per phase and neutral (installed in 2 parallel conduits) select "__________ conductors per phase in parallel", dc system with 3 positive and 3 negative conductors select "3 conductors per phase in parallel".

4

Electrical, Wires, Cables and Raceways

For most 120/240V systems using cables of adequate ampacity, voltage drop is not a concern unless cable lengths are well over a hundred feet.

12

Emergency Alarm Communication Systems, Control Functions and Interfaces

What do smoke detectors mounted in the air ducts of HVAC systems do?

22

Employees, Contractors, Insurance and Safety

OSHA form 300, log and summary of occupational injury must be kept for how many years?

15

Low Voltage Wiring

What are closed raceways referred to?

23

Mathematics and Calculations

The combined resistance of two resistors R1 and R2 in a parallel circuit is given by the formula R=1/(1/R1+1/R2)
Simplify the formula.

5

Motor Controls and Occupancies

The smallest bonding conductor permitted for pool equipment is No. __________ AWG.

6

NEC and Electrical Equipment

The first step in solving a low voltage problem on a circuit is to leave the voltmeter leads connected across the line, and then begin __________.

21

OSHA Safety, Training, Asbestos and Code of Federal Regulations, Title 29, Part 1926

For all Class I jobs involving the removal of more than __________ linear or 10 square feet of thermal system insulation or surfacing material; for all other Class I jobs, where the employer cannot produce a negative exposure assessment pursuant, or where employees are working in areas adjacent to the regulated area, while the Class I work is being performed, the employer shall use one of the following methods to ensure that airborne asbestos does not migrate from the regulated area:

17

Part 1  Fluorescent, LED, HID Fabrication, Tubes and Electrical Flow

One type of hysteresis is a simple lag between input and output.If a sinusoidal input X(t) and output Y(t) that are separated by a phase lag φ:

Such behavior can occur in linear systems, and a more general form of response is

where is the instantaneous response and is the impulse response to an impulse that occurred time units in the past. In the frequency domain, input and output are related by a complex generalized susceptibility that __________ be computed from ; it is mathematically equivalent to a transfer function in linear filter theory and analogue signal processing.

18

Part 2  Fluorescent, LED, HID Fabrication, Tubes and Electrical Flow

An ideal dipole consists of two opposite charges with infinitesimal separation. The potential and field of such an ideal dipole are found next as a limiting case of an example of two opposite charges at nonzero separation. Two closely spaced opposite charges have a potential of the form:

with charge separation, d, defined as

The position relative to their center of mass (assuming equal masses), R, and
the unit vector in the direction of R are given by:

Taylor expansion in d/R (see multipole expansion and <quadrupole) allows this potential to be expressed as a
series.^{}^{}

where higher order terms in the series are vanishing at large distances, R,
compared to d.^{} Here, the electric dipole moment p is, as above: 
The result for the dipole potential also can be expressed as:^{}

which relates the dipole potential to that of a point charge. A key point is that
the potential of the dipole falls off faster with distance __________ than that of the point charge.
The electric field of the dipole is the negative gradient of the potential, leading
to:


14

Photovoltaics

__________ is a IIIIVI2 semiconductor material composed of copper, indium, gallium, and selenium. It has a chemical formula of CuInxGa(1x)Se2

10

Protected Premises, Fire Alarm Systems and Fundamentals

Every low power radio transmitter will automatically repeat alarm transmission at intervals not exceeding __________ seconds until the initiating device is returned to its normal alarm condition.

19

Sign Components

The voltage and current ratio of autotransformers can be formulated the same as other twowinding transformers:
(0<V_{2}<V_{1})
The ampereturns provided by the upper half:
The ampereturns provided by the lower half:
For ampereturn balance, F_{U}=F_{L}:
Therefore:

20

Sign Design and Mounting

A __________ sign is a sign mounted to a building so that it provides information while also serving as shelter. Or signage, usually a vinyl application, affixed to existing awnings.

99

USA Dig Alert

The ##DIG_ALERT_COMPANY## markings are valid __________.
