Intumescent - Study guides, Class notes & Summaries

Describe air turns - eliminates air stratification. 1-2 Turns is sufficient Below what RH does corrosion virtually cease? - 40% 2 ways to reduce RH of boundary layer- - increase surface temp & dehumidification 2 types of dehumidification equipment: - refrigerant & desiccant Benefits of dehumidification - dries air, lowers dew point, holds surface during coating application, holds blast with dry air, permits blasting the entire surface. Electronic Hydrometers - test RH, air temp, dew point...

RCDD TEST QUESTIONS (TOPIC 8 - TOPIC 14) ANSWERED CORRECTLY!! Firestop ________, in conjunction with steel wedging plates, go in a steel cable tray. A. Bag B. Block C. Intumescent sheet D. Silicone foams A. Bag Which of the following is a nonmechanical firestop system? A. Cable transit system B. Firestop blocks C. Fire rated pathway device D. Factory fabricated sleeve system B. Firestop blocks What type of material does NOT support combustion even under accelerated conditions?...

Describe passivation - ANSWER-Passivation is the formation of a protective oxide Film on the surface reducing its chemical activity and its ability to corrode Describe the following factors and how they affect corrosion - ANSWER-Oxygen: oxygen increases the rate of corrosion temperature Temperature: corrosion usually accelerated with increasing temperature Chemical salts: increase the rate of corrosion by increasing the efficiency of the electrolyte humidity: the wetter the environment,...

BICSI Installer 2 study Review Technician Exam Questions and Answers 2024 There are four classes of administration of Structure cabling system (SCS) - CORRECT ANSWER-Class 1 single ER equipment room Class 2 multiple telecommunication spaces Class 3 multiple buildings on campus Class 4 multiple sites Endothermic - CORRECT ANSWER-Ability to absorb heat 3 basic types of crosstalk of interest for balaced twisted pair - CORRECT ANSWERNear End (NEXT) Attenuation to crosstalk far end (A...

BICSI INSTALLER 2 COPPER STUDY EXAM QUESTION AND VERIFIED CORRECT ANSWERS There are four classes of administration of Structure cabling system (SCS) Class 1 single ER equipment room Class 2 multiple telecommunication spaces Class 3 multiple buildings on campus Class 4 multiple sites Endothermic Ability to absorb heat 3 basic types of crosstalk of interest for balaced twisted pair Near End (NEXT) Attenuation to crosstalk far end (ACRF) Alien crosstalk intumescent Ability ...

There are four classes of administration of Structure cabling system (SCS) - CORRECT ANSWER-Class 1 single ER equipment room Class 2 multiple telecommunication spaces Class 3 multiple buildings on campus Class 4 multiple sites Endothermic - CORRECT ANSWER-Ability to absorb heat 3 basic types of crosstalk of interest for balaced twisted pair - CORRECT ANSWERNear End (NEXT) Attenuation to crosstalk far end (ACRF) Alien crosstalk intumescent - CORRECT ANSWER-Ability to expand heat Thr...

Advantages of Gypsum Drywall low install cost, quick & easy installation, fire resistance, sound control capability, easy availability, versatility, ease of finishing & decorating, ease of installation of doors/other openings Gypsum Drywall Edges Tapered: Most common; tapered on face side along the long dimension of the panel & square edges at the end; allows for application of reinforcing tape & joint compound without causing bulges at joints Square: used where appearance is NOT ...

C Which of the following is an advantage of loose-tube fiber optic cable? A - a greater impact resistance for individual fiber strands B - smaller bend radius C- Greater tensile strength D - A smaller weight per unit 8268 6-23 D Which of the following is an advantage to tight buffered fiber optic cable? A - Greater tensile strength B - More robust outer jacket C - More resistant to temperature changes D - Smaller bend radius for low fiber count cables 7742 6-25 ...

BICSI Installer 2 Copper Study - Endothermic: Refers to the ability of a material to absorb heat. - Near End Crosstalk (NEXT): One of the types of crosstalk in balanced twisted pair cables where the interfering signal is transmitted from the near end of the cable. - Attenuation to Crosstalk Far End (ACRF): Another type of crosstalk in balanced twisted pair cables, measuring the attenuation caused by crosstalk at the far end of the cable. - Alien Crosstalk: Refers to interference caused b...

Fire alarm lesson 5&6 Questions and Answers 100% Correct Which article of the NEC covers burglary system wiring? Article 725 Correct Non-power-limited circuits operate with voltages up to ? . 600 V Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:08 / 0:15 Full screen Brainpower Read More Tables ? and ? provide limitations for power-limited circuits. 12A and 12B Generally speaking, power-limited fire alarm circuits operate at ? . less ...