NEIEP Mechanics Exam
Study online at https://quizlet.com/_eu3c6v
1. 1" is equal to ______ 2.54 cm
cm
2. 1" is equal to 25.4 mm
______mm
3. Circumference For- C = 2πr
mula
4. Area of a circle A=πr²
5. Pressure formula Pressure = Force/Area or P = F/A
6. RPM formula 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
7. Time constant for- T = RC where T is time in sec. R is Resistance and C is Capacitance which is
mula in resistive ca- probably is in microfarads
pacitive circuit
8. Time constant for- T=L/R Where T is time in seconds, L is inductance in henries and R is reaistance
mula in a resistive
inductive circuit
9. formula for frequen- f=1/T where T is time(period) in seconds
cy
10. Effective Value 0.707 x peak value
(RMS) formula if giv-
en peak
11. .636 x peak
1/6
, NEIEP Mechanics Exam
Study online at https://quizlet.com/_eu3c6v
Average Value For-
mula if given peak
12. Peak value if given Peak= AVG/0.636 OR
average Peak= AVG x 1.57
13. peak to peak value 2x peak value
14. Peak value when Peak= 1.414 x Effective or RMS
given effective or
RMS
15. Peak to peak value Peak to Peak= 2.828x RMS
when given RMS or
effective
16. Formula for unequal R= 1/
resistances in a par- 1/r1+ 1/r2.........
allel circuit
17. Formula for resis- Add the resistor in series to the total resistance of resistors in parallel
tance in series paral-
lel circuit
18. LULA Max Rise 25 ft.
19. LULA Max Speed 30 ft. Min
20. LULA Max Capacity 1400 Lbs.
21. LULA Max Platform 18 sq ft
Area
22. 50 ft.
2/6
Study online at https://quizlet.com/_eu3c6v
1. 1" is equal to ______ 2.54 cm
cm
2. 1" is equal to 25.4 mm
______mm
3. Circumference For- C = 2πr
mula
4. Area of a circle A=πr²
5. Pressure formula Pressure = Force/Area or P = F/A
6. RPM formula 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
7. Time constant for- T = RC where T is time in sec. R is Resistance and C is Capacitance which is
mula in resistive ca- probably is in microfarads
pacitive circuit
8. Time constant for- T=L/R Where T is time in seconds, L is inductance in henries and R is reaistance
mula in a resistive
inductive circuit
9. formula for frequen- f=1/T where T is time(period) in seconds
cy
10. Effective Value 0.707 x peak value
(RMS) formula if giv-
en peak
11. .636 x peak
1/6
, NEIEP Mechanics Exam
Study online at https://quizlet.com/_eu3c6v
Average Value For-
mula if given peak
12. Peak value if given Peak= AVG/0.636 OR
average Peak= AVG x 1.57
13. peak to peak value 2x peak value
14. Peak value when Peak= 1.414 x Effective or RMS
given effective or
RMS
15. Peak to peak value Peak to Peak= 2.828x RMS
when given RMS or
effective
16. Formula for unequal R= 1/
resistances in a par- 1/r1+ 1/r2.........
allel circuit
17. Formula for resis- Add the resistor in series to the total resistance of resistors in parallel
tance in series paral-
lel circuit
18. LULA Max Rise 25 ft.
19. LULA Max Speed 30 ft. Min
20. LULA Max Capacity 1400 Lbs.
21. LULA Max Platform 18 sq ft
Area
22. 50 ft.
2/6
