NEIEP MECHANICS EXAM WITH
VERIFIED SOLUTIONS
1" wis wequal wto w______ wcm w- wcorrect wanswers w-2.54 wcm
1" wis wequal wto w______mm w- wcorrect wanswers w-25.4 wmm
Circumference wFormula w- wcorrect wanswers w-C w= w2πr
Area wof wa wcircle w- wcorrect wanswers w-A=πr²
Pressure wformula w- wcorrect wanswers w-Pressure w= wForce/Area wor wP w= wF/A
RPM wformula w- wcorrect wanswers w-60 wx wF w/( wN/2) wwhere wF(frequency wis wHz)
wN wis wthe wnumber wof wpoles
Example: wwhat wis wthe wrotating wspeed wof wa wthree wphase w30 wHZ w6 wpole
wmotor?
60 wx w30hz w= w1800 w1800 w•/• w3 wpoles w= w600RPM
VERIFIED SOLUTIONS
1" wis wequal wto w______ wcm w- wcorrect wanswers w-2.54 wcm
1" wis wequal wto w______mm w- wcorrect wanswers w-25.4 wmm
Circumference wFormula w- wcorrect wanswers w-C w= w2πr
Area wof wa wcircle w- wcorrect wanswers w-A=πr²
Pressure wformula w- wcorrect wanswers w-Pressure w= wForce/Area wor wP w= wF/A
RPM wformula w- wcorrect wanswers w-60 wx wF w/( wN/2) wwhere wF(frequency wis wHz)
wN wis wthe wnumber wof wpoles
Example: wwhat wis wthe wrotating wspeed wof wa wthree wphase w30 wHZ w6 wpole
wmotor?
60 wx w30hz w= w1800 w1800 w•/• w3 wpoles w= w600RPM