Q.1
A CRO is used to measure ___________.
Q.2
Power gain in decibels is equal to voltage gain in decibels only when
Q.3
___________ amplifier is used to drive the recorder.
Q.4
Two multimeters A and B have sensitivities of 10 kΩ/V and 30 kΩ/V respectively. Then ___________.
Q.5
A transducer that converts measurand into the form of pulse is called
Q.6
The outstanding characteristics of a D.C. amplifier is its
Q.7
_____________ is the example of photo emissive cell
Q.8
In foil strain gauge the thickness of foil varies from
Q.9
In phase response of a recorder noise level ___________ with the band width of a system
Q.10
Duration of rotation of pen in the PMMC system depends upon ___________.
Q.11
Pressure transducer for measuring blood pressure is
Q.12
The transducers which requires an external power and their output is a measure of some variation such as resistance, inductance, capacitance etc., are called as
Q.13
What is the total resistance of a voltmeter on the 10 V range when the meter movement is rated for 50 µA of full-scale current?
Q.14
Which of the following recorder gives slow response
Q.15
Piezo electric crystal can produce an emf
Q.16
A strain gauge is a passive transducer and is employed for converting.
Q.17
The most accurate device for measuring voltage is ___________.
Q.18
The shorter wave length of the electron permits the detailed examination of tiny objects due to reduction of __________ effects
Q.19
The _________ of a recording system is the magnitude of input voltage required to produce a standard deflection in a recorded trace.
Q.20
Pre amplifier isolation in ECG circuit is to
Q.21
Certain type of materials generates an electrostatic charge or voltage when mechanical force is applied across them. Such materials are called
Q.22
A galvanometer of resistance G is shunted by a very small resistance S. The resistance of the resulting ammeter is ___________
Q.23
For display of signal pattern ___________ voltage is applied to the horizontal plates of a CRO
Q.24
An ideal amplifier has
Q.25
Photo multiplier consists of
Q.26
For biomedical applications the mostly used amplifier is
Q.27
Pick the correct statement regarding functions of a transducer
S1: Sense the magnitude, change in & / or frequency of same measurand
S2: To provide electrical output that furnishes accurate, quantitative data about the measurand
Q.28
S1: In multimode fiber optics, intensity modulating schemes can be employed.
S2: Schemes using polarizing techniques need birefringent fiber.
Q.29
LVDT windings are wound on
Q.30
The input resistance of a VTVM is about ___________.
0 h : 0 m : 1 s