ECIL GET 2017 Recruitment: Electronics (Digital Circuits) Quiz 10

Attempt now to get your rank among 1280 students!

Question 1

Which of the following Boolean algebra rules is correct?

• AA. = 1
• BA+AB = A+B
• CA+B = A+B
• DA (A+B)= B

Question 2

In an all NOR gate realization of a combinational circuit all EVEN and ODD level gates behave like

• AOR and AND
• BAND and OR
• COR and NOT
• DNOR and AND

Question 3

The number of address lines in a 8 bit 4 K ROM is

• A8
• B0
• C12
• D16

Question 4

An 8085 processor has register contents and before the execution of instruction PUSH B. The value of and the content of the Stack Top after the execution of the instruction respectively are

• A5FFAH and 7 FH
• B5FF6H and 34H
• C5FF6H and 7 FH
• D5FF8H and 34H

Question 5

Consider the following program for 8085
XRA A
LXIB, 0007H
LOOP: DCX B
JNZ LOOP
The loop will be executed

• A8 times
• BOnce
• C7 times
• Dinfinite times

• 1280 attempts
• 7 upvotes
• 18 comments