a) Very high magnetic field b) Very low magnetic field c) Zero magnetic field d) (a) or (b) Ans: (b)
a) Square scale law b) Uniform scale law c) Logarithmic scale law d) None of them Ans: (c)
a) 2 b) 1 to 5 c) 5 to 10 d) 10 to 40 Ans: (b)
a) Voltmeter method b) Potentiometer method c) Multimeter method d) Megger test e) Bridge method f) CRO method Ans: (e)
a) Calibration instruments b) Power systems c) Electronics d) Control systems Ans: (d)
a) Resonance frequency meter b) Weston frequency meter c) Heterodyne frequency meter d) Either of the above Ans: (c)
a) Temperature errors b) Wave shape errors c) Frequency error d) (a), (b) and (c) Ans: (d)
a) 1 to 1.5 b) 1.5 to 2 c) 0.5 to 1 d) 5 to 10 Ans: (b)
a) Step down the current b) Step up the current c) Step up the current but step down the voltage d) Measure very high currents Ans: (a)
a) Moving iron instrument b) Induction type instruments c) Electronic instruments d) Hot wire instruments Ans: (d)