Instrumentation Engineering Students Test 2

When either one of the inputs to the differential amplifier is equal to zero then it is said to be operated in

The negative feed back in an amplifier

Feedback in an amplifier always helps in

Using mechanical chopper we cannot achieve high chopping rates due to their

The CMRR of a typical IC OPAMP is

Which is usually a display device used to produce a paper record of analog wave form

Which of the following a recording system is the magnitude of input voltage required to produce a standard deflection in a recorded trace.

A recorder is said to have good frequency response when the sensitivity of the system is _________ for all frequencies present in the signal.

In phase response of a recorder noise level ___________ with the band width of a system

Function of microscope is
S1: To magnify object, under observation
S2: To resolve the object

In electron microscope the projection of the motion on a plane normal to magnetic induction (B) will be a circle of radius (r) =

Match the following
1. Electron microscope – (A) Electron gun
2. Oscilloscope – (B) Condensing magnetic lens
3. Galvanometric recorder – (C) Recording head
4. Magnetic recorder – (D) Drive motor

In PMMC writing system, the magnitude of pen deflection is proportional to
S1: Current flowing through the coil
S2: Voltage in the coil

Duration of rotation of pen in the PMMC system depends upon _____

The shorter wave length of the electron permits the detailed examination of tiny objects due to reduction of ___________ effects

Which of the following recorder gives slow response

The use of storage oscilloscope
S1: Viewing rapidly changing non repetitive wave forms
S2: Recording average values

In X-Y recorders, the self balancing potentiometers plot emf as a function of

In strip chart recorders, the self balancing potentiometers plot emf as a function of

The slewing speed of X-Y recorder is

The resolution limit of electron microscope is

Storage oscilloscope operates on the principle of

The writing speed of fast storage oscilloscope is

Stress and strain curves are plotted using