Question

To increase fan-out of the gate in DTL ___________

(a) An additional capacitor may be used

(b) An additional resister may be used

(c) An additional transistor and diode may be used

(d) Only an additional diode may be used

I have been asked this question at a job interview.

This interesting question is from Diode-Transistor Logic(DTL) in division Logic Families of Digital Circuits

Answer 1

The correct option is (c) An additional transistor and diode may be used

Best explanation: To increase fan-out of the gate in DTL, an additional transistor and diode may be used. Here, the fan out means the number of maximum input that a single gate output can feed.