Instrumentation Transducers Mock Test 4

10%

Question 1 of 10

1. Which of the following quantities are sensitive to electromechanical flow meters?

Density

Viscosity

Temperature

None of the mentioned

Question 1 of 10

Question 2 of 10

2. What will happen for resistivity metal and semiconductor if the temperature is increased?

Decreases

Increases

For metal increases and for semiconductor decreases

For metal decreases and for semiconductor increases

Question 2 of 10

Question 3 of 10

3. Which of the following applications ionization chamber is used?

For detection of nuclear radiation

For ionizing gas

For storing inert gas

For better stability

Question 3 of 10

Question 4 of 10

4. Which of the following element shows increase in magnetic flux density on decreasing stress applied?

Nickel Iron alloy

Nickel

None of the mentioned

Both Nickel and Nickel iron alloy

Question 4 of 10

Question 5 of 10

5. Which of the following represents negative magnetostriction?

On increasing stress conductivity decreases

On increasing stress permeability decreases

On decreasing stress permeability decreases

None of the mentioned

Question 5 of 10

Question 6 of 10

6. Push-pull coil system is used for ________________

All of the mentioned

Provide immunity from external magnetic effect

Minimize electromagnetic force of attraction

Providing constant permeability

Question 6 of 10

Question 7 of 10

7. Semiconductor layer using silicon and germanium is known as _______________

Photo sensitive materials

Photo material

Photo junction diodes

Photo diodes

Question 7 of 10

Question 8 of 10

8. Property of exhibiting electric polarization when exposed to intense electric field is known as ___________

Ferroelectric materials

Electromagnetic effect

Ferromagnetic material

Piezoelectric materials

Question 8 of 10

Question 9 of 10

9. Capacitive transducers cannot be used as strain gauges.

False

True

Question 9 of 10

Question 10 of 10

10. Which of the following are used to form photo transistors?

Two photo diodes

Normal diodes

Three photo diodes

None of the mentioned

Question 10 of 10