FCTC WRITTEN EXAM 2023 -2024 ACTUAL EXAM 1 00 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS ) |ALRE ADY G RADED A What does "fre, 123" mean? - ANSWER - Fulcrum is in the middle for Class 1 LeversResistance (output) in middle for Class 2Effort (input) in the middle for Class 3 Formula for Determining the head pressure difference between an intake and output - ANSWER - 1 vertical foot = 0.433 psi 1 psi = 2.31 vertical feet Overall Test Overview: - ANSWER - 1) 30 -minute period to read 2 essays - 2-hour time limit begins to answer (100 questions). 2) Watch 2 short videos and answer (20 questions) based on the scenarios. 3) Apply mechanical reasoning (25 questions, i.e. Fluid Dynamics, levers, belt and pulleys, gears) 4) Mathematical Problems (20 questions, i.e. addition, division, angles, area, volume, decimals, ratios, percentages) 5) Recall and Comprehend Technical Information (35 questions, recall from first two essays, in addition to one or two more at this time) Be mindful of questions with absolutes. What are some absolutes and why watch out for them? - ANSWER - Examples of absolutes are "absolutely, always, forever, completely, infinite, never, only, sole, undeniable, or wholly".Absolutes or any sort of broad statements should be suspected as wrong. Recall and Comprehend Technical Information - ANSWER - - Read one to four essays -35 questions total (including questions for essays in back of the test booklet) - notes can be written on the essay packet, NOT any other testing material. - 15 - 20 questions from these essays were handed out in the first 30 minutes. Gear Train, or commonly called "Transmission" - ANSWER - Two or more gears working in a sequence, producing mechanical advantage through a gear ratio. Relationship between Speed, Torque, and Power: - ANSWER - Power = 2pi x Speed (w) x Torque (nm)/ 60 Torque = 60 x Power (kW)/2pi x Speed (Rpm) Belt and Pulley Systems - ANSWER - Two or more pulleys in common to a belt. If the pulleys are of differing pitch diameters, a mechanical advantage is realized. Doesn't depend on ratio of teeth as with gears and sprockets, only pitch diameter.
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