Whirling speed is also called as Critical speed of a shaft. It is defined as the speed at which a rotating shaft will tend to vibrate violently in the transverse direction if the shaft rotates in horizontal direction. In other words, the whirling or critical speed is the speed at which resonance occurs.
2) Whirling speed of the shaft is the speed at which
Answer is:
the shaft tends to vibrate vigorously in transverse direction
Explanation:
KPSC Water Resource Department Junior Engineer Mechanical Question Paper 2017 with Answer Key
For more MCQ's Click HereRelated KPSC Water Resource Department Junior Engineer Mechanical Question Paper 2017 with Answer Key
Answer is:
Tearing strength of punched plate/ tearing strength of the solid plate
Explanation:
Tearing efficiency of a riveted joint is the ratio of = (Tearing strength of punched plate)/ (tearing strength of the solid plate)
Answer is:
D/T
Explanation:
Module Module is the length of pitch circle diameter per tooth. It is denoted by 'm'.
where m= d/T
d=Pitch circle diameter
T = Total number of teeths in gear
Answer is:
bending, torsion and thrust load
Explanation:
In lathe, the main spindle shaft holding the chuck is subjected to bending, torsion and thrust load.
Answer is:
Hall effect
Explanation:
The Hall effect is the production of a voltage difference across an electrical conductor, transverse to an electric current in the conductor and to an applied magnetic field perpendicular to the current. It was discovered by Edwin Hall in 1879
