| 1.
|
Explain the effects of pressure and temperature on heat energy and
list five specific state changes. (I, II)
|
| 2.
|
Describe the changes to a liquid refrigerant as it passes through the
evaporator, compressor and condenser and list six specific
characteristics to be considered when selecting a refrigerant. (III)
|
| 3.
|
Explain the difference between pipes and tubes and list the primary
methods of connecting steel pipe and four methods to connect copper
tubing. (IV)
|
| 4.
|
Explain the function/functions of the evaporator, compressor,
condenser and pressure reducing device. (V)
|
| 5.
|
List the major heat sources that comprise the total refrigeration load
on a system and explain how total product load is determined. (VI)
|
| 6.
|
List the components of an air conditioning system and explain how a
heat pump provides both heating and cooling. (VII)
|
| 7.
|
Define a cable fault and demonstrate the necessary steps involved in a
systematic approach to locating a cable fault. (VIII)
|
| 8.
|
Demonstrate the location of faults by the terminal, tracing and
magnetic detection methods. (VIII)
|
| 9.
|
Define the term "uninterruptable power source" and give specific
examples of types and configurations. (IX)
|
| 10.
|
List the major types of alarm systems and name specific types of
facilities protected by each. (X)
|
| 11.
|
List specific types of alarm sensors and specific alarm indicating
devices. (XI)
|
| 12.
|
Demonstrate specific procedures for installation and startup of a
typical alarm system. (XII)
|
| 13.
|
Name the principal components of a Programmable Logic Controller (PLC)
and explain the function of each. (XIII)
|
| 14.
|
Define "bits", "bytes" and "words" as they pertain to PLCs and explain
the difference between user memory and storage memory. (XIV)
|
| 15.
|
Explain the reading pattern for a ladder diagram and the difference
between devices wired in series and those wired in parallel. (XV)
|
| 16.
|
Define serial communication, parallel communication and baud rate as
used with PLCs. (XVI)
|
| 17.
|
Explain the difference between the Boolean Algebra system used to
program small programmable controllers and the standard ladder logic
used in larger controllers. (XVII)
|
| 18.
|
Describe the functions of a latching relay and the master control
relay. (XVIII)
|
| 19.
|
Describe the operation and use of specific types of timers and
counters with PLCs. (XIX)
|
| 20.
|
Explain how data is moved or transferred in a ladder program and list
the standard math functions available with most PLCs. (XX)
|
| 21.
|
Describe the function of a shift register and what a sequencer does
and how it operates. (XXI)
|
| 22.
|
Demonstrate specific steps involved in startup and trouble-shooting
with PLCs. (XXII)
|
|