Frequency is equal to ______.

Related MCQs

• Consider the following statements: Two rotors mounted on a single shaft can be considered to be equivalent to a geared-shaft system having two rotors provided 1. The kinetic energy of the equivalent system is equal to that of the original system. 2. The strain energy of the equivalent system is equal to that of the original system. 3. The shaft diameters of the two systems are equal. Which of these statements are correct?
• Which type of frequency measuring instrument has multiple reeds of different natural frequency to measure vibrations?
• The resonant frequency of a mass-spring system depends upon ________
• The motion of a system executing harmonic motion with one natural frequency is known as _______
• Frequency of vibrations is usually expressed in
• A system has a mass of 0.5 kg and spring stiffness of 2452 N/m. Find the natural frequency of the system.
• The motion of a system executing harmonic motion with one natural frequency is known as _______
• A single cylinder oil engine works with a three rotor system, the shaft length is 2.5m and 70mm in diameter, the middle rotor is at a distance 1.5m from one end. Calculate the free torsional vibration frequency for a single node system in Hz if the mass moment of inertia of rotors in Kg-m2 are: 0.15, 0.3 and 0.09. C=84 kN/mm2
• At a nodal point in the shaft, the frequency of vibration is _________
• In a gearing system, pump speed is one third of the motor. Shaft from motor is 6 cm in diameter and 30cm long, the impellar shaft is 10cm diameter and 60cm long. Mass moment of inertia is 1500 Kgm2, C = 80Gn/m2. Neglecting the inertia of shaft and gears calculate the frequency of free torsional vibrations in Hz.