NEIEP Mechanics Exam () QUESTIONS WITH VERIFIED CORRECT ANSWERS.

NEIEP Mechanics Exam (2024/2025)
QUESTIONS WITH VERIFIED
CORRECT ANSWERS



1" is equal to ______ cm - Answer ✔✔ - 2.54 cm

1" is equal to ______mm - Answer ✔✔ - 25.4 mm

Circumference Formula - Answer ✔✔ - C = 2πr

Area of a circle - Answer ✔✔ - A=πr²

Pressure formula - Answer ✔✔ - Pressure = Force/Area or P = F/A

RPM formula - Answer ✔✔ - 60 x F /( N/2) where F(frequency is Hz) N
is the number of poles



Example: what is the rotating speed of a three phase 30 HZ 6 pole
motor?

60 x 30hz = 1800 1800 •/• 3 poles = 600RPM

Time constant formula in resistive capacitive circuit - Answer ✔✔ - T =
RC where T is time in sec. R is Resistance and C is Capacitance which is
probably is in microfarads

, Time constant formula in a resistive inductive circuit - Answer ✔✔ -
T=L/R Where T is time in seconds, L is inductance in henries and R is
reaistance

formula for frequency - Answer ✔✔ - f=1/T where T is time(period) in
seconds

Effective Value (RMS) formula if given peak - Answer ✔✔ - 0.707 x
peak value

Average Value Formula if given peak - Answer ✔✔ - .636 x peak

Peak value if given average - Answer ✔✔ - Peak= AVG/0.636 OR

Peak= AVG x 1.57

peak to peak value - Answer ✔✔ - 2x peak value

Peak value when given effective or RMS - Answer ✔✔ - Peak= 1.414 x
Effective or RMS

Peak to peak value when given RMS or effective - Answer ✔✔ - Peak
to Peak= 2.828x RMS

Formula for unequal resistances in a parallel circuit - Answer ✔✔ - R=
1/

1/r1+ 1/r2.........

Formula for resistance in series parallel circuit - Answer ✔✔ - Add the
resistor in series to the total resistance of resistors in parallel

LULA Max Rise - Answer ✔✔ - 25 ft.

LULA Max Speed - Answer ✔✔ - 30 ft. Min