Time Left - 12:00 mins

ESE 2019 Technical ( Electronic Measurements and Instrumentation: Quiz 3 )

Attempt now to get your rank among 269 students!

Question 1

Consider the following statements regarding
Thermistor:
1. It has a high sensitivity
2. It has a linear relationship with temperature
3. It is a resistive device
4. It can be used as a time-delay device.
Which of the above statements are correct?

Question 2

Match List-i with List-ii and select the correct answer using the code given below the Lists:
List-i List-ii
A- Hot wire 1.Gas flow
B- LVDT 2.Displacement
C- Piezoelectric 3.Current
D- Hall effect 4. Acceleration
Codes:
A B C D

Question 3

The following transducer is used for accurate and precise measurement of temperature

Question 4

The wire in a metallic strain gauge is 0.1 m long and has an initial resistance of 120 ohm. On application of an external force, the wire length increases by 0.1 mm and the resistance increases by 0.21 ohm. The gauge factor of the strain gauge will be

Question 5

A piezoelectric crystal having a thickness of 2 mm and a voltage sensitivity of 0.02 V-m/N is subjected to a pressure of 20 x 10³ Pa. what is the output voltage?

Question 6

The dynamic characteristic of capacitive transducers are similar to those of

Question 7

A resistance strain gauge with a gauge factor of 3 fixed to a steel member subjected to a stress of 10 N/mm. The young’s modulus of steel is 2 x 10⁵ N/mm².
The percentage change in resistance is

Question 8

It is desired to make accurate measurement of voltage using a CRO. Which of the following items should be taken into consideration in this measurement?
1. Electrostatic deflection type CRT
2. Magnetic deflection type CRT
3. Small deflection for measurement at the centre of the screen
4. Large deflection to cover the entire screen Select the correct answer using the code given below:

Question 9

The resistance of two coils of a wattmeter are 0.0 Ω and 100 Ω respectively and both are noninductive. The current through a resistance load is 20 A and the voltage across it is 30 V. In one of the two ways of connecting the voltage coil, the error in the reading would be

Question 10

A 0-250 V voltmeter has a guaranteed accuracy of 1% full-scale reading (deflection). The voltage measured by this instrument is 100 V. The limiting error is given by

269 attempts
6 upvotes
5 comments

Tags :

ESE & GATE EC Electrical & Electronics Measurements

May 17ESE & GATE EC