Q1:- The advantage of spring control instrument is
1.It is subjected to fatigue
2.The controlling torque can be adjusted easily
3.Being the spring light in weight there is no
increase in weight of the moving system
4.That rise of temp does not effect the
controlling torque
ANSWER:-3
Q2:- The advantage of gravity control method is that it is
1.
Costly
2.
Not very simple method
3.
Affected by temp
4.
Not subject to fatigue
ANSWER:-4
Q3:- The disadvantage of gravity control method is that it
is
1.
Kept in vertical position
2.
Light in weight
3.
Graduated uniformally
4.
Costly
ANSWER:-1
Q4:- For controlling torque spring controlling method is
1.
Generally used
2.
Rarely used
3.
Always used
4.
Never used
ANSWER:-1
Q5:- Moving iron instrument are
1.
Attraction type
2.
Repulsion type
3.
Attraction and repulsion type
4.
Dynamometer type
ANSWER:-3
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