Measurement and Instrumentation The spring material used in a spring control device should have the following property. Should have low specific resistance Most be of low temperature co-efficient All of the listed here Should non magnetic Should have low specific resistance Most be of low temperature co-efficient All of the listed here Should non magnetic ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What are the SI units of mass, length and time respectively? g, cm and s. kg, cm and s. kg, m and s. g, m and s. g, cm and s. kg, cm and s. kg, m and s. g, m and s. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land? 0.73 0.65 1 0.84 0.73 0.65 1 0.84 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What is the expression for acceleration? Change in velocity / time Mass x acceleration Mass x velocity Force x displacement Change in velocity / time Mass x acceleration Mass x velocity Force x displacement ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The inductance of a certain moving iron ammeter is expressed as L = 2+5θ-θ2 µH. The control spring torque is 2 × 10-6 Nm/radian. Find the deflection in radians for a current of 2A. 2 1 5 4 2 1 5 4 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Two voltmeters have the same range 0-400V. The internal impedance are 30,000 Ohms and 20,000 Ohms. If they are connected in series and 600V be applied across them, the readings are 300V each One of the meters out of the range and other 100V 400V and 200V 360V and 240V 300V each One of the meters out of the range and other 100V 400V and 200V 360V and 240V ANSWER DOWNLOAD EXAMIANS APP
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