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質問 1：
You are reviewing a building backbone design with a vertically aligned telecommunications room (TR). In the spec you note in a footnote with details that the slots at one end of the telecommunications room (TR) must be flush with the floor and the sleeves provide at the end of the telecommunications room (TR) must also be flush. In your meeting with the electrical engineering firm that has provided the spec, you make the comment that according to best practices, the MINIMUM that slots and sleeves must extend above the finished floor are:
A. 51 mm (2 in) for slots and 25 mm (1 in)
B. 64 mm (2 1/2 in) for slots and 64 mm (2 1/2 in)
C. 51 mm (2 in) for slots and 51 mm (2 in)
D. 25 mm (1 in) for slots and 51 mm (2 in)
E. 25 mm (1 in) for slots and 25 mm (1 in)
正解：E
質問 2：
You must place a cable between 2 equipment locations with separate grounds having a potential difference between them of 2.1 V rms. Which one of the following cables should NOT be used?
A. Singlemode
B. UTP
C. STP
D. Multimode
正解：C
質問 3：
You are placing Category 6 unshielded twisted-pair (UTP) in cable tray down a hallway past the elevator mechanical room. What action should you take to avoid effects of electromagnetic interference (EMI)?
A. Require the architect to install metallic foil shielding on the mechanical room walls
B. Provide a minimum separation of 2060 mm (81 in)
C. Provide a minimum separation of 1194 mm (47 in)
D. Provide RMC/IMC (rigid metallic conduit/intermediate metal conduit) through all areas within 4.6 m (15 ft) of the mechanical room
正解：C
質問 4：
At the end of the third week of a project, the actual cost of work performed is $7000 USd and the budgeted cost of work performed is $8000 USd. Which of the following is true?
A. The project has been back-end loaded.
B. The project is over budget.
C. The project is under budget.
D. The project is budget incorrect.
正解：C
質問 5：
The recommended MAXIMUM value for the bonding resistance between the nearest available grounding electrode and the busbar in an entrance facility (EF) is ________ ohms.
A. 0.5
B. 5
C. 1
D. 0.1
E. 2
正解：D
解説: (Pass4Test メンバーにのみ表示されます)
質問 6：
Vertical conduit masts (with approved service heads) are limited to drop-wire attachments of up to ________ lines.
A. 4
B. 25
C. 6
D. 12
正解：A
質問 7：
If the usable floor space is unknown, then deduct ________ percent of the total area available to estimate the usable area.
A. Fifteen
B. Twenty five
C. Twenty
D. Ten
E. Five
正解：C
You are reviewing a building backbone design with a vertically aligned telecommunications room (TR). In the spec you note in a footnote with details that the slots at one end of the telecommunications room (TR) must be flush with the floor and the sleeves provide at the end of the telecommunications room (TR) must also be flush. In your meeting with the electrical engineering firm that has provided the spec, you make the comment that according to best practices, the MINIMUM that slots and sleeves must extend above the finished floor are:
A. 51 mm (2 in) for slots and 25 mm (1 in)
B. 64 mm (2 1/2 in) for slots and 64 mm (2 1/2 in)
C. 51 mm (2 in) for slots and 51 mm (2 in)
D. 25 mm (1 in) for slots and 51 mm (2 in)
E. 25 mm (1 in) for slots and 25 mm (1 in)
正解：E
質問 2：
You must place a cable between 2 equipment locations with separate grounds having a potential difference between them of 2.1 V rms. Which one of the following cables should NOT be used?
A. Singlemode
B. UTP
C. STP
D. Multimode
正解：C
質問 3：
You are placing Category 6 unshielded twisted-pair (UTP) in cable tray down a hallway past the elevator mechanical room. What action should you take to avoid effects of electromagnetic interference (EMI)?
A. Require the architect to install metallic foil shielding on the mechanical room walls
B. Provide a minimum separation of 2060 mm (81 in)
C. Provide a minimum separation of 1194 mm (47 in)
D. Provide RMC/IMC (rigid metallic conduit/intermediate metal conduit) through all areas within 4.6 m (15 ft) of the mechanical room
正解：C
質問 4：
At the end of the third week of a project, the actual cost of work performed is $7000 USd and the budgeted cost of work performed is $8000 USd. Which of the following is true?
A. The project has been back-end loaded.
B. The project is over budget.
C. The project is under budget.
D. The project is budget incorrect.
正解：C
質問 5：
The recommended MAXIMUM value for the bonding resistance between the nearest available grounding electrode and the busbar in an entrance facility (EF) is ________ ohms.
A. 0.5
B. 5
C. 1
D. 0.1
E. 2
正解：D
解説: (Pass4Test メンバーにのみ表示されます)
質問 6：
Vertical conduit masts (with approved service heads) are limited to drop-wire attachments of up to ________ lines.
A. 4
B. 25
C. 6
D. 12
正解：A
質問 7：
If the usable floor space is unknown, then deduct ________ percent of the total area available to estimate the usable area.
A. Fifteen
B. Twenty five
C. Twenty
D. Ten
E. Five
正解：C
Azuma -
先日RCDD試験合格しました。
実際の試験と練習問題が非常に似た作りになっているので、楽勝でした。
ありがとうございました。