Electrical Instruments and measurements

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Q1:- For increasing the range of voltmeter connect a 

1. high value resistance in series with voltmeter
2. low value resistance in series with voltmeter
3. high value resistance in parallel with voltmeter
4. low value resistance in parallel with voltameter

ANSWER:-1

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Q2:-For increasing the range of an ammeter connect

1. a high value resistance in series with the ammeter coil
2. a high value resistance in parallel with the ammeter coil
3. a low value resistance in series with the ammeter coil
4. a low value resistance in parallel with the ammeter coil

ANSWER:-3

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Q3:- A galvanometer can be used for measuring current and voltage of a circuit by 

1. shunt only
2. connection high value of resistance in series only
3. shunt for measuring current and high resistance in series for voltage 
4. without shunt and series resistance

ANSWER:-3

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Q4:- Two voltmeter of same range one MI. type and other M.C. type are connected in parallel for measuring a.c. supply voltage if the reading of M.I. type is 300 v , the reading of M.C. type will be

     1.       Higher than M.I. type

     2.       Lower than M.I. type

     3.       Same

     4.       Zero

      

      ANSWER:-4       

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  Q5:- How you will identify whether the mater is M.I. type or M.C. type from

        1.   the type of scale 
    2. the marking of the terminals

        3. the symbol given on the meter plate

        4. all the above there 

        

        ANSWER:-4

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