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161.

Which of the following is not a source of power?

A.	Solar cell	B.	Photoelectric cell
C.	Photovoltaic cell	D.	Thermo-couple

162.

A LVDT has

A.	One primary coil and two secondary coils	B.	Two primary coils and one secondary coil
C.	One primary coil and one secondary coil	D.	Two primary coils and two secondary coils

163.

The 'dead time' of the instrument is

A.	The time required by an instrument for initial warming up	B.	The time required by an instrument to begin to respond to a change in the measured value
C.	The largest change of input quantity for which there is no output of the instrument	D.	None of the above

164.

Accelerometer is the transducer for

A.	Vibration	B.	Shock
C.	Absolute motion	D.	All of the above
E.	None of the above

165.

A flow measuring system with a square root extractor usually has

A.	Linear scale	B.	No-linear scale
C.	Inverse square law curve	D.	Mass flow rate scale
E.	None of the above

166.

A right balance meter cannot measure

A.	Pressure	B.	Flow
C.	Mass flow rate	D.	All of the above

167.

In the process of manufacture of copper sheets, the thickness of the sheet is to be continuously monitored. Which transducer will be most suitable for this purpose?

A.	LVDT	B.	Strain gauge
C.	Photocell	D.	Any of the above
E.	None of the above

168.

In a load cell, strain gauge acts as a

A.	Protective device	B.	Comparator
C.	Primary transducer	D.	Secondary transducer
E.	None of the above

169.

The duty cycle of a pulse of width 2 micro sec and repetition frequency 4 kHz is

A.	0.5	B.	0.05
C.	0.008	D.	0.0006
E.	0.00008

170.

Metres A and B require 50 mA and mA respectively to give full scale deflection. It can be concluded that

A.	A is more sensitive as compared to B	B.	B is more sensitive as compared to B
C.	A has wider range than B	D.	B has better damping as compared to A
E.	None of the above