Measurement and Instrumentation Which of the following are integrating instruments? Ammeters Wattmeters Voltmeters Ampere hour and watt hour meters Ammeters Wattmeters Voltmeters Ampere hour and watt hour meters ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A metal strain gauge has a gauge factor of two. Its nominal resistance is 120 ohms. If it undergoes a strain of 10-5, the value of change of resistance in response to the strain is 240 Ohm. 0.0012 Ohm. 120 Ohm. 0.0024 Ohm. 240 Ohm. 0.0012 Ohm. 120 Ohm. 0.0024 Ohm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Relative permittivity can be measured by _______ bridge Hays. Wheatstones. Desautys. Schering. Hays. Wheatstones. Desautys. Schering. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A wheatstone bridge cannot be used for precision measurements because errors are introduced into on account of Resistance of connecting leads. Contact resistance. Thermoelectric emfs. All of above. Resistance of connecting leads. Contact resistance. Thermoelectric emfs. All of above. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The form factor in AC is the ratio of Rms value to peak value Rms value to average value Peak value to rms value Peak value to average value Rms value to peak value Rms value to average value Peak value to rms value Peak value to average value ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The given figure shows wein bridge connection for frequency measurement. C and R are variables and gang together. For balanced condition the expression for frequency is f = 1/2πCR when R1 = 2R2. R1 = 3R2. R1 = R2/2. R1 = R2. R1 = 2R2. R1 = 3R2. R1 = R2/2. R1 = R2. ANSWER DOWNLOAD EXAMIANS APP
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