FE CIVIL EXAM - Things to know Questions and Answers 100% Pass

FE CIVIL EXAM - Things to know Questions and Answers 100% Pass Force = - mass * acceleration Weight (SI system) = - Mass * gravity Mass is a - Constant measurement and dimensionless quantity of the amount of matter in a particle or object Weight is - A measurement that varies with gravitation field and is a force The units for mass and weight (force) in SI are - Kilograms & newtons The units for mass and weight in the English system are - Pounds-mass (lbm) & pounds force (lbf) The gravitation constant to convert lbf to lbm is - gc= 32.2 lbm-ft/lbf- sec^2 2 Katelyn Whitman, All Rights Reserved © 2025 Weight in lbf (English system)= - (Mass (lbm) * gravity) / gravitation constant The acceleration of gravity for earth is - 32.2 ft/sec^2 (English) and 9.81 m/s^2 (SI) Force (SI system)= - Mass * acceleration Force in lbf (English system)= - (Mass (lbm) * acceleration (ft/sec^2))/gravitational constant Unit weight = - Weight/volume or (mass*gravity)/volume The main difference between the English and metric system when it comes to force and mass - In english force and mass share a unit (lbf & lbm), metric does not What is the Slope formula in terms of y & x - (Y2-Y1)/(X1-X1) The formula to get a slope of a perpendicular line is - m1=-1/m2 Standard equation of a line - y=mx+b, where m is the slope and b is the y-intercept 3 Katelyn Whitman, All Rights Reserved © 2025 General form of an equation of a line - Ax+By+C=0 aka mx-y+b Point slope form of a line - y-y1=m(x-x1) The length of a vector (if origin is 0,0,0)= - √(ax²+ay²+az²) In matrices a determinant symbol is - |A| The magnitude of a vector is - The length of a vector; magnitude is a scalar quantity (size no direction) In statistics a combination is - A selection