Gate 3 study guide (airstreams renewable) exam with 100% correct answers

The mildest type of burn which involves only the top layer of skin, is considered a _____. First degree burn A ______ degree burn involves all layers of the skin and my involve tissues. Third Wearing proper _____ will greatly reduce the possibility of burns. PPE List the three aspects of Electricity Hazards. Shock, Arc's, and Blast At current flows of _______ or greater, the danger of death or severe damage increases tremendously. 10 milliamps Voltages above ______ have sufficient energy to sustain arcing and to create severe blast conditions. 120 volts _______ can sause burns to the skin up to 10 feet away. Arcs The higher the voltage and shorter distance to the main power supply will create a greater ________. Arc and Blast An arc is created by a _____ situation whether it is between two or more phases or phase to ground. short circuit An Arc flash is a flash over of electric current through air from an exposed live conductor to another or to _____. Ground Name the three hazards of arcing. Heat, Objects and Sound, Pressure Serious burns are common at a distance of 10 feet away from an arc blast. True A qualified person who can enter boundaries is defined as the one who: Has demonstrated skills and knowledge and received safety training List the Three protection boundaries: Arc Flash, Limited, Restricted If you are working in a limited approach boundary area, how many feet do you need to be away if the electrical supply is 15.1kV to 36kV? 6 feet _________ and safety glasses are required when working in all boundaries. Hard Hat Always store your gloves: Cuff Down, Fingers up, in the bag Conductive articles of jewelry and clothing are allowed to be worn under your insulated gloves. False All electrical parts exceeding 50 volts will be de-energized before an employee works on or near equipment. True Affected employees will be notified of lockout activities verbally by authorized employees prior to and during implementation of LOTO procedures. True For your safety, every time power is turned off to perform work, the Hot Cold Hot procedure must be preformed again. True. When measuring amps, what is being measured? The measure of volume or intensity of electrical flow When measuring volts, what is being measured? Electrical pressure or force What is measured in Ohms? Resistance Insulated tools are used to perform work on _____ equipment: Energized When choosing an insulated too for electrical work, verify that it is _____ rated. Double triangle Ensure the meter being used is rated for the current, voltage and transient levels of the circuit being measured True List the IEC 61010 Category rating for each of the following. I - Protected Electronic circuits II - Receptacle outlet circuit; plug-in loads III - Distribution wiring including mains IV - Origin of installation at the Utility level Whenever possible, you should work on ______ circuits. De-Energized The higher the short circuit fault current available the lower the IEC category rating. False Transient voltage is a slowly building pulse of current or voltage in an electrical circuit. False Practice safe measurement techniques by always connecting the grounded lead first, hot second. True When should electrical test equipment be inspected? Before every use Before using a Multimeter, you should ______ . Both A and B Never operate the meter: At more than the rated voltage, With the case open, With the cover removed When using a DMM you should avoid working alone? True When measuring current, turn off circuit power before connecting the Meter in the circuit. True When making electrical connections, connect the ___ test lead before connecting the live test lead. Common Use the proper_____,_______and______ for all measurements. Terminals Function and Range The input jack on the DMM labeled with an A is to be used for ____. Amps The jack labeled COM for common is the: Return terminal for all measurements When the dial switch is the AC V position, it will measure _____. AC voltage When the dial Switch is in the ))), Ohms, -I(-, position, it will measure ____ Continuity, Resistance and Capacitance Which symbol should you use on a dial switch to measure diodes? -I- the yellow button on a Fluke Multi-meter is used to: Select capacitance, Switch between DC and AC current, Select temperature The auto hold button captures the present reading on the display. When a new. stable reading is detected, the Meter beeps and displays the new reading? True To avoid possible damage to the Meter r to the equipment under test, disconnect circuit power and discharge all high voltage _______ before measuring capacitance. Capacitors To measure AC or DC current, turn circuit power ______ to connect the meter. Off