Ncatt - Study guides, Class notes & Summaries

AET(NCATT) 200-250 EXAMINATIONA QUESTIONS WITH COMPLETE SOLUTIONS ALREADY GRADED A+ 201) What is the RMS voltage of the sinewave is each block represents 50V? - Answer-70.7 202)What is the resistance and tolerance of the resistor above (Y/Blk/Vio/Gold)? - Answer-400M ohms +/- 5% 203) [Fig.2 above] Which transistor is illustrated correctly? - Answer-1 204) [Fig.1 above] What would cause the light not to illuminate? - Answer-R2 open 205) What type of transducer is used when large sca...

51) The interchange of energy between the inductor and capacitor in a tank circuit is called? - The flywheel effect 52) The amplifiers class of operation is determined by? - Amount of forward bias 53) What is the resistance of normally closed contacts when the relay is re-energized? - 0 ohms/short 54) What distinguishes a solenoid from a basic relay? - The plunger (armature) pulled into the coil. 55) What part of a basic relay returns the armature to its de-energized position? - The sprin...

FOD NCATT `TEST 2023...

NCATT Chapt 3 Concepts of AC Exam ...

What is an Ampere (A, amp, amperage)? - Unit of measurement for flow of electrons (electrical current) Unit of measurement for flow of electrons (electrical current) - Ampere (A, amp, amperage) Amperage in mathematical problems is expressed by what letter? - I How many electrons are in a Coulomb? - 6.28 billion-billion (6.28x10^18) 1 Coulomb per second is equivalent to how many amperes? - 1 What is a Battery? - A device that stores chemical energy and makes the energy available in electri...

Capacitance - The amount of electrical charge that can be stored in a capacitor under a given amount of voltage (pressure); causes the current to lead in applied voltage Effective Value - Value of sine-wave AC needed to produce the same amount of heat as the value of the direct current Inductance - Causes voltage to be produced when it is cut or crossed by lines of magnetic flux; causes current to lag the applied voltage Peak Voltage - Voltage measured from zero to the highest number of vo...

Ohm's Law - E=IR Power - P=IE Inductive Reactance (XL) - XL=2*3.14fl Capacitive Reactance (XC) - XC=2*3.14fc Resisters in Series - Rt=R1+R2+R3... Resisters in Parallel - Rt=1/1/R1+1/R2+1/R3... Inductors in Series - Lt=L1+L2+L3... Inductors in Parallel - Lt=1/1/L1+1/L2+1/L3... Capacitors in Series - Ct=1/1/C1+1/C2+1/C3... Capacitors in Parallel - Ct=C1+C2+C3...

Direct Current - Current that flows in one direction. Electron - The negatively charged particle in an atom that orbits the nucleus. Proton - The positively charged particle in the nucleus of an atom. Neutron - The neutrally charged particle in the nucleus of an atom. Conductor - Elements that readily conduct electricity. Static electricity - A stationary electric charge built up on an insulating material. Current - The flow of electrons. Coulomb - The unit for measuring charges. 6.24x10^...