Electrical Engineering : Measurement And Instrumentation QUESTIONS AND ANSWERS :: part4 : 21 to 25
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
21.The power of a n-phase circuit can be measured by using a minimum of |
| (n - 1) wattmeter elements |
| n wattmeter elements |
| (n + 1) wattmeter elements |
| 2n wattmeter elements |
22.Which of the following is measured by using a vector voltmeter ? |
| Amplifier gain and phase shift |
| Filler transfer functions |
| Complex insersion loss |
| All of the above |
23.If an instrument has cramped scale for larger values, then it follows |
| square law |
| logarithmic law |
| uniform law |
| none of the above |
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