Mechatronics Mock Test 4

10%

Question 1 of 10

1. What is the full form of DIAC?

Diode attenuating current

Diode analogous current

Diode for alternating current

Dioxide for analogous current

Question 1 of 10

Question 2 of 10

2. When a negative voltage is applied on the gate terminal, a N channel is formed between N-type source, P-type substrate and N-type drain terminal of an enhancement type MOSFET.

False

True

Question 2 of 10

Question 3 of 10

3. How many terminals does a TRIAC (Triode alternating current) have?

Question 3 of 10

Question 4 of 10

4. Which noise is also termed as multiplicative noise?

Linear noise

Salt and pepper noise

Gaussian Noise

Speckle noise

Question 4 of 10

Question 5 of 10

5. CMRR stands for ____

Common mode rejection ratio

Common mode reluctance ratio

Common mains rejection ratio

Common mode rejection rate

Question 5 of 10

Question 6 of 10

6. DIAC is a unidirectional device.

False

True

Question 6 of 10

Question 7 of 10

7. Noise reduction technique is only applicable for audio and other time varying signals.

True

False

Question 7 of 10

Question 8 of 10

8. An ideal Operational amplifier should have Infinite output resistance and zero input resistance.

False

True

Question 8 of 10

Question 9 of 10

9. An SCR is a bidirectional device.

True

False

Question 9 of 10

Question 10 of 10

10. Which electromagnetic rays is emitted GaAs LED’s ?

Visible light

Ultraviolet

Radio

Infrared

Question 10 of 10