An amplitude ratio of 0.1 corresponds to _____________ decibels?

Related Mcqs:

A constant volume gas thermometer employing ______________ is used to measure sub-zero (i.e., < 0°C) temperature?

A. Helium B. Hydrogen C. Nitrogen D. None of these...

Which of the following thermometers is not suitable for distant reading upto 60 metres ?

A. Vapor pressure thermometer B. Mercury in glass thermometer C. Constant volume gas thermometer D. Resistance thermometer...

Suppose that the gain, time constant and dead time of a process with the following transfer function: Gc(s) = 10 exp( – 0.1s)/(0.5s + 1) are known with a possible error of ± 20% of their values. The largest permissible gain Kc of a proportional controller needs to be calculated below taking the values of process gain, time constant and dead time as________________?

A. 8, 0.6, 0.08 B. 12, 0.6, 0.12 C. 8, 0.6, 0.12 D. 12, 0.4, 0.08...

Starting temperature of optical radiation pyrometer is ______________ °C?

A. 800 B. 400 C. 1200 D. 1500...

Out of the following thermocouple wire insulating material, the highest temperature rating is for________________?

A. Teflon B. Ceramic fibre C. Asbestos D. Fibre glass...