Elevator mechanics exam 300 Questions And
Answers Review Exam | Questions and Answers
Graded A+ Latest 2024/2025
What's the equation for the volume of the cylinder? - CORRECT ANSWER 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 ANSWER 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 ANSWER D=R•T
D(distance=R(rate) multiplied by T(time)
What is the equation for pressure? - CORRECT ANSWER pressure = force/area
P(pressure)= F(force) divided by A(area)
,What is the equation For voltage? - CORRECT ANSWER E=I•R
voltage (E) = current(I) x resistance(R)
What is the equation for current or amps (i)? - CORRECT ANSWER I=E/R
i (current in Amps)
R=(resistance in ohms)
E(volts)
What is the equation for series voltage? - CORRECT ANSWER Et=E1=E2=E3
ET(total voltage)
What is the equation for series resistance? - CORRECT ANSWER Rt=R1+R2+R3
R=resistance
What is the equation for series current? - CORRECT ANSWER It=i1=i2=i3
it=total current in amps
I=current in amps
How do you calculate resistance of a wire? - CORRECT ANSWER R=P•L/A
R=resistance of the wire
P= resistivity constant of the wire
L=length of the wire
A=cross sectional area of the wire
, What is the equation for parallel voltage? - CORRECT ANSWER Et=E1=E2=E3
E=voltage
ET=total voltage
What is the equation for parallel current? - CORRECT ANSWER iT=i1+i2+i3
I=current in amps
iT=total current in amps
What is the equation for parallel resistance? - CORRECT ANSWER 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 ANSWER (Diameter of
First pulley) •(RPM of first pulley) (diameter of second pulley) •(RPM of second
pulley)
Take RPM of the first pulley and multiply it by the diameter of the first pulley,
then divide that by the diameter of the second pulley.
What is the equation for sprocket relationship ? - CORRECT ANSWER (Number
of teeth in sprocket1)•(RPM of sprocket 1)= (number of teeth in sprocket
2)•(RPM of sprocket 2)
Answers Review Exam | Questions and Answers
Graded A+ Latest 2024/2025
What's the equation for the volume of the cylinder? - CORRECT ANSWER 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 ANSWER 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 ANSWER D=R•T
D(distance=R(rate) multiplied by T(time)
What is the equation for pressure? - CORRECT ANSWER pressure = force/area
P(pressure)= F(force) divided by A(area)
,What is the equation For voltage? - CORRECT ANSWER E=I•R
voltage (E) = current(I) x resistance(R)
What is the equation for current or amps (i)? - CORRECT ANSWER I=E/R
i (current in Amps)
R=(resistance in ohms)
E(volts)
What is the equation for series voltage? - CORRECT ANSWER Et=E1=E2=E3
ET(total voltage)
What is the equation for series resistance? - CORRECT ANSWER Rt=R1+R2+R3
R=resistance
What is the equation for series current? - CORRECT ANSWER It=i1=i2=i3
it=total current in amps
I=current in amps
How do you calculate resistance of a wire? - CORRECT ANSWER R=P•L/A
R=resistance of the wire
P= resistivity constant of the wire
L=length of the wire
A=cross sectional area of the wire
, What is the equation for parallel voltage? - CORRECT ANSWER Et=E1=E2=E3
E=voltage
ET=total voltage
What is the equation for parallel current? - CORRECT ANSWER iT=i1+i2+i3
I=current in amps
iT=total current in amps
What is the equation for parallel resistance? - CORRECT ANSWER 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 ANSWER (Diameter of
First pulley) •(RPM of first pulley) (diameter of second pulley) •(RPM of second
pulley)
Take RPM of the first pulley and multiply it by the diameter of the first pulley,
then divide that by the diameter of the second pulley.
What is the equation for sprocket relationship ? - CORRECT ANSWER (Number
of teeth in sprocket1)•(RPM of sprocket 1)= (number of teeth in sprocket
2)•(RPM of sprocket 2)
