United Airlines Flight Sim Tech Trade Test
Questions and Answers
Binary to decimal, decimal to hexadecimal, hexadecimal to binary, octals to all that stuff
too. - -
-Adding/subtracting binary, hexadecimal, and octal - -
-logic gates. AND, NAND, OR, NOR, XOR, etc. There are 7 logic gates. - -AND is 1 output if all
inputs are 1, OR is 1 output if any input is 1, XOR is 1 output if ONLY ONE input is 1. an "N"
in front inverts it, so a NAND outputs a 0 if all inputs are 1, and vice versa
-Names of Boolean laws and what they do - -
-Ohm's law, Kirchoff's current law, Kirchoff's voltage law - -E=IR, all the current going into
a point will exit that point, and all voltage drops and gains in a circuit must equal 0. must be
able to solve series and parallel circuits
-Capacitors, what they do, how they are used. Does voltage or current lead? - -Two plates
with something (dielectric) in-between. capacitance increases with less distance between
plates, and changes based on dielectric. Air has a dielectric constant of 1. Capacitors SLOW
the change of current in the circuit, because they take time to charge. Adding capacitors in
series improves power factor of an AC circuit. ELI the ICEman, so "I" leads "E" in
Capacitance.
-How to find capacitance - -
-Be able to find energy stored in a capacitor in series, parallel, and series-parallel circuits -
-
-Transistors, what are components, how made, how work. What types? - -solid state
switches. silicon doped with other materials, have Base, Emitter, and Collector. NPN and
PNP operate differently. NPN: if apply current to the Base, it allow the main current to join
the Base and flow from Collector to Emitter. PNP: All current is applied to Emitter, and if
current allowed to flow out of Base, then current can also flow from Emitter to Collector
-What are the 3 main types of transistors? - -
-What is the input impedance of a transistor? What is output impedance? - -
-In a transistor, base current is about ____% of emitter current - -
-Calculate voltage and current changes through a transformer based on their turns ratios -
-
, -What is TRIAC - -
-What is SCR, how to turn on/off - -
-What is flip-flop circuit, how many stable states? - -bistable multivibrators, swaps
between 2 stable states
-How many bits are stored in a flip-flop? - -
-Be able to draw a JK flip-flop - -
-Resistor color codes - -Good luck; I'm colorblind, and could never tell the difference
0-black
1-brown
2-red
3-orange
4-yellow
5-green
6-blue
7-violet
8-gray
9-white
5%-gold
10%-silver
20%-no band
-Formula for work - -
-Formula for force - -
-Hydraulic schematics and diagrams - -
-What is an accumulator? what is the purpose of precharge? - -
-What is the formula for hydraulic force? - -Force = Pressure x Area of piston
-Understand the math between how far a hydraulic piston moves when pressurized by
another, differently sized piston - -
-Hydraulic components: explain check valves, metering valves, relief valves, shuttle valves,
pilot valves - -
-What are the different types of check valves? - -
Questions and Answers
Binary to decimal, decimal to hexadecimal, hexadecimal to binary, octals to all that stuff
too. - -
-Adding/subtracting binary, hexadecimal, and octal - -
-logic gates. AND, NAND, OR, NOR, XOR, etc. There are 7 logic gates. - -AND is 1 output if all
inputs are 1, OR is 1 output if any input is 1, XOR is 1 output if ONLY ONE input is 1. an "N"
in front inverts it, so a NAND outputs a 0 if all inputs are 1, and vice versa
-Names of Boolean laws and what they do - -
-Ohm's law, Kirchoff's current law, Kirchoff's voltage law - -E=IR, all the current going into
a point will exit that point, and all voltage drops and gains in a circuit must equal 0. must be
able to solve series and parallel circuits
-Capacitors, what they do, how they are used. Does voltage or current lead? - -Two plates
with something (dielectric) in-between. capacitance increases with less distance between
plates, and changes based on dielectric. Air has a dielectric constant of 1. Capacitors SLOW
the change of current in the circuit, because they take time to charge. Adding capacitors in
series improves power factor of an AC circuit. ELI the ICEman, so "I" leads "E" in
Capacitance.
-How to find capacitance - -
-Be able to find energy stored in a capacitor in series, parallel, and series-parallel circuits -
-
-Transistors, what are components, how made, how work. What types? - -solid state
switches. silicon doped with other materials, have Base, Emitter, and Collector. NPN and
PNP operate differently. NPN: if apply current to the Base, it allow the main current to join
the Base and flow from Collector to Emitter. PNP: All current is applied to Emitter, and if
current allowed to flow out of Base, then current can also flow from Emitter to Collector
-What are the 3 main types of transistors? - -
-What is the input impedance of a transistor? What is output impedance? - -
-In a transistor, base current is about ____% of emitter current - -
-Calculate voltage and current changes through a transformer based on their turns ratios -
-
, -What is TRIAC - -
-What is SCR, how to turn on/off - -
-What is flip-flop circuit, how many stable states? - -bistable multivibrators, swaps
between 2 stable states
-How many bits are stored in a flip-flop? - -
-Be able to draw a JK flip-flop - -
-Resistor color codes - -Good luck; I'm colorblind, and could never tell the difference
0-black
1-brown
2-red
3-orange
4-yellow
5-green
6-blue
7-violet
8-gray
9-white
5%-gold
10%-silver
20%-no band
-Formula for work - -
-Formula for force - -
-Hydraulic schematics and diagrams - -
-What is an accumulator? what is the purpose of precharge? - -
-What is the formula for hydraulic force? - -Force = Pressure x Area of piston
-Understand the math between how far a hydraulic piston moves when pressurized by
another, differently sized piston - -
-Hydraulic components: explain check valves, metering valves, relief valves, shuttle valves,
pilot valves - -
-What are the different types of check valves? - -
