DIGITAL ELECTRONICS MCQS PART 01

DIGITAL ELECTRONICS MCQS PART 01

1. The NAND gate output will be low if the two inputs are
(A) 00 
(B) 01  
(C) 10  
(D) 11
Ans: D

2.What is the binary equivalent of the decimal number 368
(A) 101110000 
(B) 110110000 
(C) 111010000 
(D) 111100000
Ans: A

3. The decimal equivalent of hex number 1A53 is
(A)6793            
(B) 6739           
(C) 6973           
(D) 6379
Ans: B

4. (734)8 = ( )16
(A) C 1 D         
(B) D C 1           
(C) 1 C D              
(D) 1 D C
Ans: D

5. The simplification of the Boolean expression  (ABC)+ (ABC) is
(A) 0             
(B) 1             
(C) A              
(D) BC
Ans: B

6. The number of control lines for a 8 – to – 1 multiplexer is
(A) 2          
(B) 3           
(C) 4              
(D) 5
Ans: B
7. How many Flip-Flops are required for mod–16 counter?
(A) 5         
(B) 6              
(C) 3           
(D) 4
Ans: D

8. EPROM contents can be erased by exposing it to
A. Ultraviolet rays.
B.Infrared rays.
C. Burst of microwaves.
D.Intense heat radiations
Ans: A

10. The hexadecimal number ‘A0’ has the decimal value equivalent to
(A) 80    
(B) 256          
(C) 100    
(D) 160
Ans: D