standard instruments for calibration of other instruments
B.
transfer type instruments
C.
indicator type instruments on panels
2.
Fluid friction damping can be used in
A.
horizontally mounted instruments
B.
vertically mounted instruments
C.
both horizontally and vertically mounted instruments
3.
Which damping method can not be used in moving iron instruments
A.
Eddy current damping
B.
Air friction damping
C.
Fluid friction damping
4.
The frequency range of thermocouple instruments is
A.
upto 1 kHz
B.
upto 1 MHz
C.
50 MHz and above
5.
The following analog instrument symbol indicates
A.
Permanent magnet moving coil instrument
B.
Moving iron instrument
C.
Induction instrument
6.
The high torque to weight ratio in an analog indicating instrument indicates
A.
High friction loss
B.
Low friction loss
C.
Heavy instrument
7.
The following analog instrument symbol indicates
A.
Electrostatic instrument
B.
Induction instrument
C.
Moving iron instrument
8.
The instrument that has a uniform scale is
A.
Permanent magnet moving coil instrument
B.
Induction instrument
C.
Electrodynamometer type instrument
9.
The heater wire of thermocouple instruments is made very thin in order to
A.
Have a high value of resistance
B.
Reduce the weight of the instrument
C.
Reduce skin effects at high frequencies
10.
A PMMC 0-15A ammeter is without any controlling mechanism and the moving part is free to rotate. If the current of 0.5A DC is passed through the moving coil, then the instrument
