201. Find (177)₈ + 1, in decimal—

1. 1. 128

   
   
   

   2. 200

   
   
   

   3. 178

   
   
   

   4. 179

   
   
   

---

1. View Hint View Answer Discuss in Forum

   (177)₈:
   1 × 8² + 7 × 8 + 7 = (127)₁₀
   127 + 1 = 128

   Correct Option: A

   (177)₈:
   1 × 8² + 7 × 8 + 7 = (127)₁₀
   127 + 1 = 128

---

202. Which of following gates is shown as coincidence detector?

1. 1. AND gate

   
   
   

   2. OR gate

   
   
   

   3. NOT gate

   
   
   

   4. NAND gate

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

---

---

203. The propagation delay time of a non-saturated bipolar logic family—

1. 1. is less than that of a saturated bipolar logic family

   
   
   

   2. is same as that of a saturated bipolar logic family

   
   
   

   3. is more than that of a saturated bipolar logic family

   
   
   

   4. None of these

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

---

204. n-channel MOS devices are preferred over p-channel MOS devices for digital circuit because—

1. 1. lower power dissipation

   
   
   

   2. higher power dissipation

   
   
   

   3. higher mobility of electrons than holes

   
   
   

   4. None of these
      

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

---

---

205. n-p-n transistors are preferred over p-n-p transistors for digital circuit families because—

1. 1. they require positive supply voltage

   
   
   

   2. they consume less power

   
   
   

   3. of the requirements of positive logic system

   
   
   

   4. the mobility of electrons is higher than the mobility of holes

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

---