Q. All elements of sonar are driven electrically.

View solution

Q. Piezo electric materials are well cut for _____________

View solution

Q. Which of the following can be used in sonar?

View solution

Q. Magnetostriction transmitter uses _______________

View solution

Q. OTDR stands for _______________

View solution

Q. Which of the following is not correct for fibre optic sensors?

View solution

Q. Fluoride glass is used with __________

View solution

Q. Silica glass of hydroxyl concentration can be used for ___________ of wavelength.

View solution

Q. General spectral range for silica glass is _______________

View solution

Q. Epoxy material in fibre optics is intended for ________________

View solution

Q. Plastics optical cables can be used for ________________

View solution

Q. Which of the following represents loss associated with glass fibres?

View solution

Q. Loss associated with plastic fibre is less than glass fibres.

View solution

Q. Cladding in glass fibre have high refractive index than the core.

View solution

Q. Which of the following change electrical conductivity on the absorption of a gas molecule?

View solution

Q. Polypropylene is a/an _____________

View solution

Q. ISE stands for __________________

View solution

Q. Glass electrode is an ion selective electrode.

View solution

Q. Water purity is tested by ____________

View solution

Q. Heater power in thick film hybrid technology is __________

View solution