NEIEP Mechanics Exam Questions and Answers | Detailed Exam Prep with Rationales | A+ Verified

NEIEP Mechanics Exam Questions and Answers |
Detailed Exam Prep with Rationales | A+ Verified
• 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