Given below is the equivalent circuit of a logic gate. Identify the logic gate.

In which of the below-mentioned logic families, the transistors operate between cut-off and active (non-saturation) states? (i) Transistor-Transistor Logic (TTL) (ii) Schottky TTL (iii) Diode Transistor Logic (DTL) (iv) Emitter Coupled Logic (ECL) Choose the correct answer from the code given below: Code:

A

(i) and (iii) are correct

B

(ii) and (iii) are correct

C

(i) and (iv) are correct

D

(ii) and (iv) are correct

The input to a logic gate is A = 1100 and B = 1010. What will be the output, if the logic gate is NAND gate?

A

1101

B

111

C

0110

D

1011

A universal logic gate is one which can be used to generate any logic function. Which of the following is a universal logic gate?

A

OR

B

AND

C

XOR

D

NAND

Find the Thevenin equivalent (VTH and RTH) between terminals A and B of the circuit given below.
Circuit Theorems and Conversions mcq question image

Circuit Theorems and Conversions mcq question image

A

4.16 V, 120 Ω

B

41.6 V, 120 Ω

C

4.16 V, 70 Ω

D

41.67 V, 70 Ω

A tank of water has a gate in its vertical wall. The gate is 4 m high and 3 m wide. The top edge of the gate is 2 m below the surface of water. What is the hydrostatic force on the gate. Take specific weight of water as 10 kN/m3.

A

240 kN

B

360 kN

C

720 kN

D

480 kN

In comparing the operation of the half-controlled 2-pulse circuit with that of the fully-controlled circuit, which of the following statements are evident? 1. Since half the thyristors are replaced by diodes, a half-controlled converter costs less than a fully-controlled converter. 2. Due to the freewheeling action with a half-controlled bridge-circuit power factor is improved in half-controlled converters. 3. The AC supply current is more distorted due to its zero periods with the half-controlled circuit, compared to a fully-controlled bridge circuit. Select the correct answer using the code given below :

A

1 and 2 only

B

2 and 3 only

C

1 and 3 only

D

1, 2 and 3

Find the Norton circuit, that is, I_IN and R_N, for the circuit given below.
Circuit Theorems and Conversions mcq question image

A

478 mA, 12.8 Ω

B

750 mA, 12.8 Ω

C

478 mA, 6.8 Ω

D

750 mA, 6.8 Ω

Given below are certain statements regarding the average power dissipated in different types of circuits. Identify the correct option. A. Maximum power dissipation occurs in the case of the resistive circuit and when the LCR circuit is at resonance. B. In the case of a purely inductive circuit, no power is dissipated. C. In the case of the RC circuit, power is dissipated in resistor and capacitor both.

A

Both A and B are correct

B

Both B and C are correct

C

Both A and C are correct

D

Only A is correct

What is the Thevenin equivalent (V_TH and R_TH) for the circuit given?
Circuit Theorems and Conversions mcq question image

A

6.4 V, 422 Ω

B

6.4 V, 560 Ω

C

6.4 V, 680 Ω

D

30 V, 422 Ω

Find the Thevenin equivalent (V_TH and R_TH) between terminals A and B of the circuit given.
Circuit Theorems and Conversions mcq question image

A

562 mV, 167 Ω

B

5.62 V, 167 Ω

C

5.62 V, 188 Ω

D

562 mV, 188 Ω

Given below is the equivalent circuit of a logic gate. Identify the logic gate.

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