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BICSI Installer 1 Exam Containing 164 Questions and Answers 2024-2025.
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25-pair color code - Answer: White - Blue, orange, green, brown, slate Red - Blue, orange, green, brown, slate Black - Blue, orange, green, brown, slate Yellow - Blue, orange, green, brown, slate Violet - Blue, orange, green, brown, slate Fiber color code - Answer: Blue, Orange, Green, Brown, Slate, White, Red, Black, Yellow, Violet, Rose, Aqua
NVP - Answer: Nominal Velocity of Propagation Insertion loss - Answer: The difference in the amount of power received before and after something is inserted into the circuit. Resistance - Answer: Resistance is expressed in Ohms, and is the property of a conductor to resist the flow of electricity through it. V=IR Inductance - Answer: Is a property of an electromagnetic field built around a conductor that opposes any change in the current flow in a circuit Capacitance - Answer: is a property of conductors that allows storage of electric charges when potential differences exist between the conductors. Impedance (V) - Answer: Total opposition of current flow measured in Ohms American Wire Gauge (AWG) - Answer: A standard rating that indicates the diameter of a wire, such as the conducting core of a coaxial cable or the twisted pairs in a UTP cable. Megahertz (MHz) - Answer: one million hertz, especially as a measure of the frequency of transmissions
the transmission mode. This reflection allows fiber to bend around corners without impairing the light-based signal. Multimode Fiber (MMF) - Answer: Larger core with multiple paths of light. Common for backbone and horizontal cabling in buildings. OM2 - Not recommended for new installs. OM3 - Higher bandwidth. OM4 - Highest bandwidth for MMF. 2000m/6500ft limitation. 850 nm and 1300 nm (nanometers) Singlemode Fiber - Answer: Smaller core with only one path of lights. Horizontal, riser, campus environments. 9 um core, 125 um cladding. OS1 - LAN, tight buffered construction, 1310/1550 nm OS2 - Outside Plant, 1310, 1490, 1550, 1625 nm 3000m/9842ft limtations. Ribbon Fiber - Answer: Multiple 250 um fibers bonded into a flat color coded ribbon. Can splice a bunch at a time. Fiber - Tight buffer diameter - Answer: 900 um Fiber - Acrylate coating diameter - Answer: 250 um OM1 - Answer: 850 nm OFL - 200 MHz•km (3.5dB/km) 1300 nm - 400 MHz•km (1.5dB/km)
OM2 - Answer: 850 nm OFL - 500MHz•km (3.5dB/km) 1300nm - 500MHz•km (1.5dB/km) OM3 - Answer: 850 nm OFL - 1500MHz•km (3.5dB/km) 850 nm RFL - 2000MHz•km (3.5dB/km) 1300 nm - 500MHz•km (1.5dB/km) OM4 - Answer: 850 nm OFL - 3500MHz•km (3.5dB/km) 850 nm RFL - 4700MHz•km (3.5dB/km) 1300 nm - 500MHz•km (1.5dB/km) Modal Distortion - Answer: A light distortion problem unique to MMF fiber-optic cable. Happens when light signals are sent at the same time. chromatic dispersion - Answer: The broadening of a pulse due to different propagation velocities of the spectral components of the light pulse. Begins at the light source Modal Bandwidth is described in terms of... - Answer: (MHz)(km) Ferrule Key Latching Mechanism - Answer: flat or pre-radiused end assures consistent connector orientation within couplers locks in place
White/blue Green White/brown Brown Simplex - Answer: A type of transmission in which signals may travel in only one direction over a medium. Half Duplex - Answer: Communication between two devices whereby transmission takes place in only one direction at a time. Full Duplex - Answer: Communication that happens in two directions at the same time. 1 cycle 60 cycles 1000 cycles 1 million cycles 1 billion cycles 1 trillion cycles - Answer: 1 Hz 60 Hz 1 KHz 1 MHz 1 GHz 1 THz
Voltage, current, and amperes - Answer: P(Power)=V(voltage) x I(Current) What is bandwidth expressed in - Answer: analog frequencies (0Hz to 1MHz) AWG - Answer: Smaller number - bigger wire Higher number - smaller wire A balanced twisted pair has... - Answer: a nominal characteristic impedance of 100 Ohms A unbalanced coaxial cable has... - Answer: a nominal characteristic impedance of 75 Ohms Category 3 Category 5e Category 6 Category 6A Category 8 - Answer: 16 MHz 100 MHz 250 MHz 500 MHz 2000 MHz 8P8C -A pinout - Answer: White/green
TE - Answer: A TE is a subset of a TR that generally serves a limited space. NOT TO BE USED TO REPLACE A TR Normal rack height and width? - Answer: 7 feet tall and 19/23 inches wide Conduit fill ratio - Answer: 40 percent for new installation, not to exceed 60 percent J-hooks - Answer: Typically used to hold up to 50 cables. Placed every 4-5 feet to support cable Surface Mount Box types - Answer: Shallow, Standard, and Deep What are the six elements of professionalism listed in the ITSIMM - Answer: An installer should _ in public, and _ in private - Answer: Praise. Correct. Cabling installation companies are dependent on _ for new and repeat business - Answer: Customers What are the percentages of communication perception? - Answer: Body language - 55% Tone of voice - 38% Word choice - 7%
What are three ways to minimize EMI? - Answer: Using shielded cable (STP) Using fiber instead of copper Putting the cable in conduit (shielded pathway) 1 sine wave = _ - Answer: 1 Hz The number of cycles a signal is repeated in a given time period is defined as the _
What is the maximum length of a patch cord? - Answer: 16.5 ft What is the maximum length of a horizontal optical fiber cable? - Answer: 295 ft Undercarpet cable is - Answer: not recommended Whats the purpose of a consolidation point (CP)? - Answer: allows horizontal cabling to be extended into work area pathways Tags - Answer: attached to mounting surface Label - Answer: consist of face stock material Which term identifies where the service provider relinquishes circuit responsibility to the customer - Answer: Demarcation Point Where do outside plant (OSP) cables enter the building? - Answer: Entrance Facility (EF) What is the most economical permanent entrance over the life cycle of a building?
What type of ladder should be using near electrical work? - Answer: non- conductive (i.e. fiberglass) What are the four steps you should take responding to an electrical fire? - Answer: R - rescue A - alarm C - confine E - extinguish What neutralizes battery acid? - Answer: baking soda How far should the backboard be installed above the finished floor in a TR - Answer: 8 inches How much vertical space does one rack unit (RU) occupy? - Answer: 1.75 inches A hand bender can be used for conduits up to - Answer: 1 1/ What is the minimum bend radius for 2 in. conduit - Answer: 12 in Open top cable supports (j-hooks) should be install to provide a minimum of _ clearance above ceilings - Answer: 3 inches What are the three main bonding and grounding components? - Answer: Ground rod
What should be used to secure backbone cable in a vertical pathway? - Answer: wire-mesh grip What is the preferred method for attaching loose tube fiber optic cables to a pull rope? - Answer: wire-mesh grip What is the recommended method of balanced twisted pair terminations? - Answer: Insulation Displacement Connector (IDC) Which termination configuration uses drain wires? - Answer: STP Sheath removal tools - Answer: Ringer, Slitter, Snips* What pair counts are 110 hardware frames available in? - Answer: 50, 100, 300, 900 What pair counts are BIX hardware frames available in? - Answer: 50, 250, 300, 900 Orange cable means - Answer: Demarc Green cable means - Answer: network connections Purple cable means - Answer: common equipment
White cable means - Answer: first-level backbone Gray cable means - Answer: second-level backbone Blue cable means - Answer: horizontal cabling Brown cable means - Answer: interbuilding backbone Yellow cable means - Answer: misc. Red cable means - Answer: reserved for future use Bus topology - Answer: a linear configuration that places all of the network devices on one cable (daisy-chain) Tree topology - Answer: extension of a bus topology Ring topology - Answer: places all the network devices in a circle and uses one cable to connect between devices. Each device is connected to the next one until the circle is closed. Star topology - Answer: network switch is placed in the center of the network and the devices connect to the switch.
Whats the bend radius of a 4 pair cable? - Answer: 4x the diameter Whats the bend radius for a 6 gauge cable? - Answer: 10x the diameter How far apart do you stagger cable heads? - Answer: start with 1 cable, go 3 inches back, add 2, go 3 inches back, add 2..... What is a sheave? - Answer: like a conduit waterfall. used in manholes How many users can a CP and MUTOA service? - Answer: 12 Fire rated sheetrock is how thick? - Answer: 5/8 in Plywood in the TR needs to be how thick? - Answer: 3/4 in What type of conduit uses screw in couplers? - Answer: EMT, IMC, and RMC What does a mushroom replace? - Answer: a half d-ring 66-blocks have color coded hinge covers - Answer: true Cable must stay _ in. away from transformers - Answer: 48 What are the cable slack lengths for stations? - Answer: 1.5 ft pre-termination 1 ft after termination
Can multimeters measure cable length? - Answer: yes What page refers to communications in the CSI Master Format? - Answer: page 27 What are the two phases of a turnover? - Answer: flashed and phased Tester level 1 - Answer: Category 3 and 4 Tester level 2 - Answer: Category 5 Tester level 2e - Answer: Category 5e Tester level 3 - Answer: Category 6 Tester level 3e - Answer: Category 6a What are the steps in trouble shooting copper cables? - Answer: -verifying the problem -isolating the source of the problem -repairing the problem -testing the repaired system to ensure it functions properly What are the three phases of testing? - Answer: Phase 1 - visual verification Phase 2 - testing cables with correct equipment
