Question with Answer BSNL JE

1. The basic sequential logic building block in which the output follows the data input as long as the ENABLE input is active is :
(a) JK-flip flop                                                    
(b) T-flip flop
(c) D-flip flop                                                            
(d) D-type latch                                                               
Ans (d)
2. A random process obeys Poisson’s distribution. It is given that the mean process is 5. Then the variance of the process is :
(a) 5                                                                    
(b) 0.5
(c) 25                                                         
(d) 0                                                                      
Ans (c)
3.  When we talk about mesh current analysis using a matrix formation, we talk about :
(a) Admittance matrix and Z-parameters
(b) Admittance matrix and Y-parameters
(c) Impedance matrix and Z-parameters
(d) Impedance matrix and Y-parameters               
Ans (c)
4. One of the following is an essential payload on board a communication satellite :
(a) VHRR                                
(b) Transponder
(c) Telescope                                                       
(d) High resolution camera                         
Ans (b)
5. In a certain code MEANING is written as NFHALDN, WRITTEN is written as TMDIQVT. How is RELATED written in that code ?
(a) EESAKSE                                                       
(b) EQKASCE
(c) QDKASDC                                                     
(d) ECSAKQE                                                     
Ans (d)
6. Sunni Dutt, who died recently, he was the :
(a) Union Finance Minister
(b) Union Minister of Sports and Youth
(c) Union External Affairs
(d) Information and Technology                       
Ans (b)
7.  Find the opposite word in meaning ANALYSIS.
(a) Miss or kiss                                           
(b) Parenthesis
(c) Emphasis                                                  
(d) Synthesis                                                     
Ans (d)
8. The one loop gain of an opamp falls to zero decibel at 10 MHz. The unity gain cross-over frequency for this opamp is :
(a) 20 MHz                                                       
(b) 10 MHz
(c) 5 MHz                                                     
(d) intermediate                                             
Ans (b)
9. Referring to the atomic structure, semiconductor material has :
(a) eight electrons in its outermost shell
(b) four electrons in its outermost shell
(c) its outer shell completely filled
(d) two electrons in its outermost shell          
Ans (b)
10. An amplifier has two identical cascaded stages. Each stage has a bandwidth of 20 KHz. The overall bandwidth shall approximately be equal to :
(a) 10 kHz                                                             
(b) 12.9 kHz
(c) 20 kHz                                            
(d) 28.3 kHz                                                       
Ans (b)
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