Which of the following judges the accuracy of an instrument? None of these Static error Drift Dead zone TRUE ANSWER : ? YOUR ANSWER : ?
Bourdon tube is never made of Monel metal Phosphor bronze Cast iron Stainless steel TRUE ANSWER : ? YOUR ANSWER : ?
Liquid discharge from a tank or reservoir can not be measured by Notches Orificemeters Weirs Mouthpieces TRUE ANSWER : ? YOUR ANSWER : ?
Thermistors are used in __________ devices. Voltage measuring Temperature measuring Temperature compensating Both B & C TRUE ANSWER : ? YOUR ANSWER : ?
The time constant of a unity gain, first order plus time delay process is 5 min. If the phase lag at a frequency of 0.2 rad/min is 60°, then the dead time (in minutes) is π/12 5π/12 π/6 π/3 TRUE ANSWER : ? YOUR ANSWER : ?
Pick out the one which is a first order instrument. Bare metallic thermometer Mercury in glass thermometer (without any covering or air gap) Bare vapor pressure thermometer All of these TRUE ANSWER : ? YOUR ANSWER : ?
Phase lag of the frequency response of a second order system to a sinusoidal forcing function Is 90° at the most Is 30° Is 120° Approaches 180° asymptotically TRUE ANSWER : ? YOUR ANSWER : ?
The characteristic equation for the control system with a closed loop transfer function G₁/1 + G₂ is given by 1 + G₂ = 0. The characteristic equation for the control system Is the same for set point or load changes Determines its stability Depends only upon the open loop transfer function All of these TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following thermocouples has the least temperature measurement range? Platinum-platinum/rhodium Copper-constantan Iron-constantan Chromel-alumel TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following thermometers is not suitable for distant reading upto 60 metres? Constant volume gas thermometer Resistance thermometer Mercury in glass thermometer Vapor pressure thermometer TRUE ANSWER : ? YOUR ANSWER : ?