Question 1

Which type of protection for electrical power stations provide isolation against a rise in potential of station ground and also provide drainage protection against longitudinally-induced voltages?

Accepted Answer

The answer of Which type of protection for electrical power...

Question 2

Within a commercial office building of 2300 sq m (25000 sq ft), how many building automation system (BAS) devices are required?

Accepted Answer

The number of required BAS devices depends on various factors such as the complexity of the building, the number of floors, and the systems integrated. However, as a general rule of thumb, for a commercial office building of 2300 sq m (25000 sq ft), approximately 1 BAS device is required per 23 sq m (250 sq ft). Therefore, the total number of BAS devices required would be approximately 100. Hence, the correct answer is C.

Question 3

Exhibit:  In this future marina layout, assuming that there are fewer than 10 slips being cabled, what would be the pre-cabling guideline to follow for terminal A?

Accepted Answer

Assuming that there are fewer than 10 slips being cabled, the best pre-cabling guideline for terminal A would be to install one or two pair cables from the boat slips to a distribution terminal on the closest point of land. This will allow for easy maintenance and troubleshooting if necessary, while also minimizing the amount of cable needed.

Question 4

You are designing a multi-story dwelling and need to place the CTR's. Every floor is not available. What is the alternate spacing for the CTRs?

Accepted Answer

Placing the CTRs every 3 floors is a common practice to ensure adequate coverage and accessibility for services throughout the building.

Question 5

Within building automation hardware systems, there is a hierarchical system of micro processor based controllers. Which type of controller is used to provide limited port capacity for connection of sensors, support, and execution of DDC programs, and usually operates in stand alone mode?

Accepted Answer

A field level controller is typically used for connecting and controlling sensors and devices within a specific area or field. It has limited port capacity and can operate in a stand alone mode, making it ideal for smaller systems or subsystems. System level controllers, on the other hand, are used for integrating multiple field level controllers and managing larger building automation systems. Management level processors are used for higher level functions such as data analytics and reporting. Protocol management systems and DDC managers are specialized software programs used to manage and communicate with building automation systems.

Question 6

You have just finished a design calling for 15 telecommunications outlets. You received word that the owner has increased his requirements by 40%. What size commercial DD (distribution device) is required to accommodate the increase?

Accepted Answer

The original design called for 15 outlets. A 40% increase means an additional 6 outlets (15 x 0.40 = 6).

To determine the size of the commercial DD needed, we must consider the number of outlets and the size of the device required for each outlet.

According to industry standards, a typical commercial DD can accommodate up to 24 outlets. Therefore, we need at least one device to accommodate the original 15 outlets and an additional device to accommodate the new 6 outlets.

If we assume that we are using a standard commercial distribution device of 610 mm (24 in) width, then we will need 2 devices with a total width of 1220 mm (48 in).

However, none of the answer choices match this calculation.

Looking at the answer choices, we see that the only option that is large enough to accommodate more than one commercial DD is C) 1346 mm (53 in). This size would allow for 2 commercial DDs side by side with some additional room to spare. Therefore, the correct answer choice is C.

Question 7

If you are using a building automation system (BAS) protocol operating on RF media at 19,200 b/s in the 868 MHz band, which protocol are you using?

Accepted Answer

The European installation bus (KNX) protocol operates in the 868 MHz band and can use RF media at a data rate of 19,200 b/s.

Question 8

Which of the following is used to create an electronic signal that can be sent to the central nurse call equipment?

Accepted Answer

An initiation device is used to create an electronic signal that can be sent to the central nurse call equipment. Headend modules receive and process signals from the initiation devices and notification devices alert personnel of the call. Two tone devices can be used as notification devices but do not create electronic signals to be sent to the central nurse call equipment.

Question 9

In an office area, a consultant needs to add the location of a fax machine to the plan. What is the approximated floor area that a fax machine occupies?

Accepted Answer

The answer of In an office area, a consultant needs...

Question 10

Which service is NOT typical of Grade 1?

Accepted Answer

Grade 1 services typically only include basic communication services such as telephone and possibly television. Multimedia and data services are typically not included in Grade 1 services.

Question 11

What is the MINIMUM distance from the edge of a pool or other water hazards for a weatherproof enclosure?

Accepted Answer

The answer of What is the MINIMUM distance from the...

Question 12

You are designing a nurse call system for a health care facility. The system will have emergency call switches. What is the first step you should take in designing the nurse call system?

Accepted Answer

Performing a risk assessment to determine call switch locations is the first step in designing a nurse call system. This will ensure that emergency call switches are placed in appropriate locations where they are easily accessible in the event of an emergency. Once the risk assessment is done, then the other steps can be taken. Sizing the supporting TR, programming the headend device, and performing a site survey are important steps but should come later in the design process.

Question 13

You are designing a nurse call system for an assisted care facility. What type of nurse call system would best suit the needs for the facility?

Accepted Answer

A tone/visual system is a great choice for an assisted care facility because it provides both an audible and visual indication of the patient's call. This is important in facilities where patients may have hearing or vision impairments. Additionally, it allows staff to prioritize calls by identifying them based on the location and urgency of the call.

Question 14

The headend has several modulators assigning frequencies for distribution to the CATV network. What distribution device should you use immediately at the headend to distribute the modulator's output signals to CATV system?

Accepted Answer

A combiner is the best choice to distribute the modulator's output signals to the CATV system. A combiner is used to combine multiple RF signals into a single output, which is exactly what is needed in this scenario to distribute the modulator's output signals. A splitter will split a single input signal into multiple output signals, which is the opposite of what is needed. A directional coupler is used to measure or monitor a signal, and a multiport tap is used to tap into a signal for testing or distribution purposes, but they are not designed to combine signals like a combiner.

Question 15

Exhibit:  What does this international symbol stands for?

Accepted Answer

The answer of Exhibit:  What does this international symbol...

Question 16

What is the highest typical ambient noise level where audio paging becomes unintelligible?

Accepted Answer

The answer of What is the highest typical ambient noise...

Question 17

What is the expected lumenance value, in watts, of a 200 watt fluorescent lamp after three years?

Accepted Answer

The answer of What is the expected lumenance value, in...

Question 18

A building has six floors plus a basement. Each floor is 10,000 square feet and has approximately 50 CATV outlets respectively. There is a single hardline trunk cable installed from the basement headend passing through the telecommunications room (TR) on each floor. What is usually the MOST cost effective coaxial cable design to implement on the horizontal distribution from the telecommunications room (TR)?

Accepted Answer

Trunk and tap design is the most cost-effective option for horizontal distribution in this scenario. It utilizes a single hardline trunk cable that runs through each floor's telecommunications room (TR), and then taps are used to connect to individual CATV outlets. This design requires less cabling and is easier to install and maintain compared to a home run design, which would require separate cables for each outlet. Video over balanced twisted-pair or optical fiber may be effective options in different situations, but they are not specified as necessary in this scenario.

Question 19

Exhibit:  A pay telephone using coins needs to be installed in a public area. In the specifications, it is required that the telephone shall meet the ADA (American with Disabilities Act) requirement for front reach using a wheelchair. What will be the maximum reachable height or the value of "X"?

Accepted Answer

The answer of Exhibit:  A pay telephone using coins...

Question 20

A telephone facility and an electrical facility are required in a tunnel. To reduce the effects of EMI and eliminate the need for additional shielding of the cables, where would each facility be placed?

Accepted Answer

Placing the telephone facility and electrical facility on opposite sides of the tunnel will help to reduce the effects of EMI, as the cables will not be running parallel to each other. This will eliminate the need for additional shielding of the cables. Placing them on the same side or together on the same pathway may result in interference between the two facilities. Placing them on the top and bottom parts of the same side may also result in interference, and placing them on the exterior of the tunnel may not be feasible or practical.

Exam 1: BICSI Registered Communications Distribution Designer - RCDD