Elevator mechanics exam 300 Questions with Complete Solutions What's the equation for the volume of the cylinder? - Correct Answers ✅V (volume)= pi multiplied by R squared multiplied by the height
Example: radius is 6" height is 30
V=3.1416•6•6•30
A drill draws a current (I) of 4.5 amps and resistance of 16.0 ohms, how do You find the power(watts)? - Correct Answers ✅P=I squared (amps) multipled by R(resistance)
Example:P=4.5•4.5•16.0
4.5•4.5=20.25
20.25•16.0=324
P=324 What is the equation for distance? - Correct Answers
✅D=R•T
D(distance=R(rate) multiplied by T(time) What is the equation for pressure? - Correct Answers ✅pressure = force/area P(pressure)= F(force) divided by A(area) What is the equation For voltage? - Correct Answers
✅E=I•R
voltage (E) = current(I) x resistance(R) 1 / 3
Elevator mechanics exam 300 Questions with Complete Solutions What is the equation for current or amps (i)? - Correct Answers ✅I=E/R i (current in Amps) R=(resistance in ohms) E(volts) What is the equation for series voltage? - Correct Answers ✅Et=E1=E2=E3 ET(total voltage) What is the equation for series resistance? - Correct Answers ✅Rt=R1+R2+R3 R=resistance What is the equation for series current? - Correct Answers ✅It=i1=i2=i3 it=total current in amps I=current in amps How do you calculate resistance of a wire? - Correct Answers ✅R=P•L/A R=resistance of the wire P= resistivity constant of the wire 2 / 3
Elevator mechanics exam 300 Questions with Complete Solutions L=length of the wire A=cross sectional area of the wire What is the equation for parallel voltage? - Correct Answers ✅Et=E1=E2=E3 E=voltage ET=total voltage What is the equation for parallel current? - Correct Answers ✅iT=i1+i2+i3 I=current in amps iT=total current in amps What is the equation for parallel resistance? - Correct Answers ✅RT= 1 divided by 1/R1 + 1/R2 +1/R3 Add each fraction (1/R1-1/R3) Divide the answer of each resistance by 1 **** What is the equation for pulley relationship? - Correct Answers ✅(Diameter of First pulley) •(RPM of first pulley) (diameter of second pulley) •(RPM of second pulley)
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