NOCTI Pre Engineering Exam study guide questions and answers verified and updated.

NOCTI Pre Engineering Exam study guide questions and answers verified and updated. What are the major engineering fields? - correct answers.Civil Mechanical Electrical Aerospace Structural What major functions do engineers perform? - correct answers.1. Research- making new discoveries and finding uses 2. Development- production of a function able device/ process 3. Design- optimizing/ making easier to produce/ improving performance 4. Production/Testing- mass production + quantity control 5. Construction- Production on a site 6. Operations- managing facilities and networks 7. Sales- consumer creator link, creating a market 8. Management- using background for managing 9. Consulting- solving problems What type of eduction is required to be an engineer? - correct answers.1. Bachelors degree at a credited school (ABET or CAEB) 2. Exams- Fundamentals of Engineering test- Engineering in Training (EIT) 3. Practice for 4 years- principles and practice exam- licensed engineer What important ethics are related to engineering situations? - correct answers.Engineers use knowledge and skill for the advancement of human welfare. They need to be honest and impartial, increasing reputation of the engineering profession. Who do engineering interact with? (Other technical personnels on the job) - correct answers.Engineers Scientists Technologists Technicians Craftsmen What important milestones have occurred during the progression of the engineering field? - correct answers.Henry Fords assembly line Wright brothers first flight Thomas Edison's light bulb Robert Goddars' liquid fuel rockets What are the important principles of the problem solving process? - correct ification of a need, problem definition, researching, constraint, criteria, alternative solutions, analysis What are the steps in the design process? - correct answers.Identify the need, research and gathering info, develop solution (alternative solutions), choose a solution (analysis), construct a prototype, test and evaluate How to analyze solution/ identifying strengths and weaknesses? - correct answers.Efficiency Cost Safety Functionality Availability of materials Durability How to develop details of a solution? - correct answers.Scale model Inventor (dynamic simulation) Orthographic Isometric drawing Techno CNC + 3D printing How to develop, test, and redesign prototypes? - correct answers.Test for safety and durability Test for efficiency How to explain components of set up, machining, casting, molding, welding, and finishing? - correct answers.Turning- lathe Milling- makes square objects Casting- turns liquid into mold Welding- arc, spot, gas (oxyacetylene) Undercutting- welding reduce cross sectional strength Finishing- painting How to identify and use common hand tools - correct answers.Straight edge- ruler VIC (vernier caliper)- measures inside/outside distanxes How to identify and properly use fasteners? - correct answers.Machine srews- hex nuts Wood screws- course thread/pointy Sheet metal- pointed heads, sharp fine threads Thread Rotation= UNC 1/4(diameter)-20(thread per inch)-2(thread length)-2A(type of thread) How to estimate and measure the size of objects using SI and US units? - correct answers.1 inch = 2.54 cm 100 ft = 28.3 L 1 gal water = 7-8 lbs How to explain the role and quality control in manufacturing? - correct answers.-Controls the quality -bSigma- stands for manufacturing for standardization -International organizations -Manufacturing tolerance How to measure with percussion to olds and instruments? - correct answers.7.00 sleeve(0.5) 0.25 thimble What role does quality control plays in assembly and fabrication? - correct answers.-Improves quality and reputation -Reducing execution time -Lower costs What are the roles of supplying and outsourcing? - correct answers.-Reordering levels are set -No over stocking (to attain materials in time w/o overstocking) What does the order and methodology of the assembly process consist of? - correct answers.Operations Storage Transportation/Delays Inspection What are the attributes of common materials? - correct answers.Ferrous- high weight/ lower conductivity/ easily corrodible/ magnetic Non Ferrous- malleable/ high conductivity How to make an oral presentation? - correct answers.Practice Don't read from slides Speak to the audience How to interpret aspects and/or types of engineering drawings and plans? - correct answers.Orthographic drawings Dimensions/ line drawings How to express data in tables, graphs, and charts? - correct answers.Bar graph- qualitative Histogram- Quantitative How to contribute to a team project? - correct answers.Communication Common goal, vision Find a good team How to follow appropriate personal safety procedures? - correct answers.Need to know and learn safety rules What role of OSHA is in the technical workplace? - correct answers.Occupational safety + help admin Ensure safety standards are followed through How to use appropriate safety equipment? - correct answers.Eye and ear protection Safety shoes Masks Hazardous material storage How electrical safety decries function? - correct answers.Circuit breaker- to switch circuit off, surge protector, when it gets excess/ it converse excess to ground How to solve problems using vectoring to persist forces? - correct answers.X Y components Hypotenuse components How to calculate and describe the effect of resistance? - correct answers.V=IR^2 W=VI How to apply Ohms law, Watts law, and Kirchoffs law? - correct answers.Ohms law- V=IR^2 Watt- power= voltage x current Kirchoffs- sum of voltage in = sum of voltage out How does AC and DC systems work and differ? - correct answers.DC current- flows in the same direction AC current- constantly flows How to identify what causes resistance in a fluid system? - correct answers.Smoother pige inside As few curves as possible motor cylinder piston How hydraulic and pneumatic systems work? - correct answers.Pump, Valce, Motor/Cylinder Hydraulic motor- generates power Pneumatic- pressurized fluId Three ways heat is transferred - correct answers.Convection- hot to cold (no direct contact) Radiation- to contact (vacuum) Conduction How to convert between Celsius and Ferenheit? - correct answers.(X9/5)+32 <from C to F> (-32X5)/9 <from F to C> How heat conductors and insulators work? - correct answers.Head conductors relies on density (more particles) heat can jump How to solve thermal problems using appropriate units? - correct answers.BTU- British thermal unit 1 pound of water needed to get 1 degrees F What are the six simple machines? - correct answers.Pulley Lever Wheel and Axel Wedge Screw Plane How to solve problems using appropriate units in engineering systems? - correct answers.Increase velocity of liquid Increase force or increase area absolute p + gauge = atmospheric pressure How to identify the uses and types if inductors and capacitors? - correct answers.Capacitor- stores electrical energy Inductors- stores energy (w/ magnetic field) How to use insulation to minimize heat flow? - correct answers.1. sealed windows (vacuum) 2. Fiberglass How to identify electrical components and their functions? - correct answers.Diode limits- keeps current in 1 direction Translator- amplifies or switches on electrical signal