Measurement and Instrumentation A galvanometer has Air friction damping Spring coil damping Eddy current damping Fluid friction damping Air friction damping Spring coil damping Eddy current damping Fluid friction damping ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following meter is most suitable for measuring radio frequency currents? Thermocouple meter. VTVM. Moving - iron meter. Moving - coil meter. Thermocouple meter. VTVM. Moving - iron meter. Moving - coil meter. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance can be measured most accurately by Voltmeter-ammeter method Bridge method Multimeter Megger Voltmeter-ammeter method Bridge method Multimeter Megger ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In DC potentiometer measurments, a second reading is often taken after reversing the polarities of the DC supply and the unknown voltage and the average of the two reading is taken. This is with a view of eliminate the effects of Errorneous standardisation. Ripples of the DC supply. Stray magnetic fields. Stray thermal emfs. Errorneous standardisation. Ripples of the DC supply. Stray magnetic fields. Stray thermal emfs. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a wheatstone bridge, a change of 6 Ω in the unknown arm of bridge is required to produce a change in deflection of 2.4 mm of the galvanometer. The sensitivity is 2.5 mm/Ω 5.0 mm/Ω 0.8 mm/Ω 0.4 mm/Ω 2.5 mm/Ω 5.0 mm/Ω 0.8 mm/Ω 0.4 mm/Ω ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In measurement system, the function of the signal manipulating elements is to to perform non liner operation like clipping filtering, chopping and clamping. to perform linear operation like addition and multiplication. change the quantity under measurement to an analogues signal. change the magnitude of the input signal while retaining its identity. to perform non liner operation like clipping filtering, chopping and clamping. to perform linear operation like addition and multiplication. change the quantity under measurement to an analogues signal. change the magnitude of the input signal while retaining its identity. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS