MCQs Electrical Engineering

1. A single binary digit is called :
(1) Byte       
(2) Bit  
(3) Data         
(4) Logic       
Ans  (2)
2. What is the equivalent decimal mumber of the binary number 11100 ?
(1) 28       
(2) 24
(3) 30      
(4) 20.             
Ans (1)
3. Which number system is not positional number system ?
(1) Binary           
(2) Roman  
(3) Octal         
(4) Hexadecimal           
Ans (2)
4. The full scale output of an 8 bit DAC for 0 to 10 V range is
(1) 1.961 V        
(2) 9.961V
(3) 96.11 V       
(4) 1.996 V.           
Ans (2)
5. Which of the following are 3 byte instruction set ?
(1) MV 1A, 32 H         
(2) JMP 2085  H
(3) MOV C, A           
(4) ADD B.               
Ans (2)
6. Number of comparators required for an 8 bit flash ADC is :
(1) 8        
(2) 16
(3) 255     
(4) 256.          
Ans (3)
7. How many bits are required to encode 32 level PCM -
(1) 6       
(2) 5
(3) 4        
(4) 3.            
Ans (2)
8. 12. The number of bits in a Byte is.
(1) 2         
(2) 8
(3) 4        
(4) 16.          
Ans  (2)
9. Initially the number decimal 8 is stored. If instruction RAL is executed twice, the final number stored will be.
(1) Decimal 8     
(2) Decimal 16 
(3)Decimal 32         
(4) Decimal 2         
Ans  (3)
10. 1. Which one of following logic gates is a universal logic gate :
(1) NOT         
(2) AND
(3) NAND      
(4) EX - OR.        
Ans (3)
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