Telecoms & Corrosion: Exchanges, ADSL, IPAM

<p>All are correct (C)</p> Signup and view all the answers

<p>80 VAC (C)</p> Signup and view all the answers

<p>Asyncronious Digital Subscriberline (B)</p> Signup and view all the answers

<p>Copper (D)</p> Signup and view all the answers

<p>4-8 OHM (A)</p> Signup and view all the answers

<p>Carbon (C)</p> Signup and view all the answers

<p>Internet protocao access Multiplex (C)</p> Signup and view all the answers

<p>10 (A)</p> Signup and view all the answers

<p>Users (D)</p> Signup and view all the answers

<p>5 VDC (D)</p> Signup and view all the answers

<p>Form – 48 (D)</p> Signup and view all the answers

<p>Form - 35 (D)</p> Signup and view all the answers

<p>12 monthly (D)</p> Signup and view all the answers

<p>Using screened enclosures. (B)</p> Signup and view all the answers

<p>NCO i/c (C)</p> Signup and view all the answers

<p>Ensuring personnel do not approach closer than a safe distance. (B)</p> Signup and view all the answers

<p>Ignition of the liquid or atmosphere causing fire or explosion. (C)</p> Signup and view all the answers

<p>Ionization of the air. (B)</p> Signup and view all the answers

<p>Static electricity (D)</p> Signup and view all the answers

<p>It decreases current flow, lessening the shock. (C)</p> Signup and view all the answers

<p>Electrical arcing can still occur. (D)</p> Signup and view all the answers

<p>OC Engg (A)</p> Signup and view all the answers

<p>To monitor for potential respiratory failure requiring artificial respiration. (B)</p> Signup and view all the answers

<p>Electric shock (D)</p> Signup and view all the answers

<p>Electric shock (B)</p> Signup and view all the answers

<p>Physiological damage (A)</p> Signup and view all the answers

<p>The radiation can prematurely trigger the devices. (B)</p> Signup and view all the answers

<p>Below 10 mw/cm2 (A)</p> Signup and view all the answers

<p>When near electro-explosive devices (D)</p> Signup and view all the answers

<p>Worker behavior can significantly impact and potentially hinder the maintenance of good health and safety standards. (D)</p> Signup and view all the answers

<p>The level of care required is directly proportional to the risk involved; higher risk demands greater care. (A)</p> Signup and view all the answers

<p>Using poorly maintained electrical equipment in wet environments. (C)</p> Signup and view all the answers

<p>10 meters (D)</p> Signup and view all the answers

<p>Burns, fire, and explosion. (A)</p> Signup and view all the answers

<p>Ethernet switch (A)</p> Signup and view all the answers

<p>100 Watt (B)</p> Signup and view all the answers

<p>120VAC and 220 VAC (D)</p> Signup and view all the answers

<p>TRUE (B)</p> Signup and view all the answers

<p>192.168.X.254 (A)</p> Signup and view all the answers

<p>TRUE (B)</p> Signup and view all the answers

<p>8 Ports (C)</p> Signup and view all the answers

<p>Two (A)</p> Signup and view all the answers

<p>2 Sec (B)</p> Signup and view all the answers

Corrosion that occurs when two metals with different electrode potentials contact each other.

Localized corrosion that occurs due to the diffusion of oxygen and water through coatings.

Corrosion caused by the combined effects of cyclic stress and environmental factors.

Methods to mitigate corrosion effects based on factors like metal type and contamination.

Asymmetric Digital Subscriber Line, a technology for high-speed internet access.

Inputs for Internet Protocol Address Management, managing IP allocation.

Internet Protocol Address Management, a system for managing IP addresses.

Set of rules governing the format of data sent over the internet.

The acceptable resistance for earthing; typically between 4-8 OHM.

The microphone type commonly used is carbon.

The circuit can handle a total of 6 lines.

The microphone operates at 5 VDC.

TMA must be renewed on a 3-monthly basis.

The Training Coordinator is responsible for timely renewal.

Recorded on PAF Form 43.

Annotated on PAF Form 43 A during maintenance.

Worker behavior significantly affects health and safety standards in the workplace.

Activities that pose a high risk of electric shock include working with electrical equipment, power cables, and in wet environments.

High voltage power lines can arc across distances of over 10 to 25 metres.

Receiving an electric shock can cause effects ranging from mild discomfort to serious injury.

Electricity hazards include burns, fire and explosion, and arcing.

Protective barriers for personnel in high radiation areas.

The minimum distance to avoid radiation exposure near antennas.

Electricity caused by the buildup of charge from friction.

Discharge of electricity from one conductor to another through air.

Electrical lines that can cause arcing over distances greater than 10 meters.

Ensuring personnel safety and conducting maintenance routines.

Risks like electrical static igniting vapors in flammable environments.

Routine checks to ensure safety and functionality of systems.

Environmental factors that increase resistance decrease current flow, contrary to some beliefs.

The principle in medical treatment for injuries, especially electric shocks, is to avoid infection.

Watch the patient for breathing failure; if it occurs, begin artificial respiration.

Imitate breathing movements to help induce inspiration in case of electric shock.

After an electric shock, keep the patient warm while waiting for help.

Radar transmission can cause physiological damage to personnel.

The minimum safe distance from a radar transmitter is when power density is below 10 mw/cm².

These devices can become fire hazards when exposed to radar radiation.

A networking device that connects devices on a LAN and uses MAC addresses to forward data.

A device that forwards data packets between computer networks, typically connecting to the internet.

A device that modulates and demodulates signals for data transmission over phone lines or cable.

Common inputs for control power supply are 120VAC, 220VAC, or 380VAC.

The input voltage for the inverter portion is approximately 405 VDC.

A common private IP address for routers is 192.168.X.254.

Tower earth resistance should be less than 10 ohms for safety and efficiency.

Moxa server typically requires 48VDC input power.

The operating system used in a VRS is Solaris, a UNIX operating system.

GMCC communicates with SMCC through a router, confirming network link.