Which is correct option for ear protection equipment?

Related MCQs

• Which part of human ear converts sound vibrations into electrical signals
• 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 one of the following is correct for a shaft carrying two rotors at its ends?
• Which of the following statement is correct?
• Which of the following statements is correct about the balancing of a mechanical system?
• Which of the following is the correct expression for secondary force?
• Which of the following is correct regarding isolation factor?
• If the damper is not provided and the system is in resonance, which of the following is the correct isolation factor?
• Which type of vibrations are also known as transient vibrations?
• During transverse vibrations, shaft is subjected to which type of stresses?