Carry Look Ahead Adder Question & Answers July 14, 2022 By WatElectronics This article lists 40 Carry Look Ahead Adder MCQs for Engineering Students. The Carry Look Ahead Adder Questions & Answers below include solutions and links to the relevant topic. This is helpful for users who are preparing for their exams and interviews, or professionals who would like to brush up on the fundamentals of the Carry Look Ahead Adder. The carry look-ahead adder is used to improve the operational speed. It is faster in terms of operational speed and it takes propagation delay to have output when we have a parallel adder. The carry will get generated when the addition is increased to greater than one. The fastest addition logic and reduced propagation time or delay are the advantages of the carry look-ahead adder. For each full adder, the carry look-ahead adder generates the carry simultaneously, this is also one of the advantages of the carry look-ahead adder. The main disadvantage of the carry look-ahead adder is, that it uses complex hardware, it is costlier since it involves complex hardware and it gets more complicated as the number of bites increases. The short form of the carry look-ahead adder is CLA. The carry look-ahead adder and carry-save adder are the important fundamentals of quantum-dot cellular automata. 1). What is the standard form of CLA? Carry Look Ahead Adder Carry Limit Ahead Adder Carry Look Adder Adder None of the above None Hint 2). If A=0, B=1, C=0, C+1=0 then the condition is _______________ ? No carry will generate No carry propagates Carry generates None of the above None Hint 3). If A=0, B=1, C=1, C+1=1 then the condition is _______________ ? No carry will generate No carry propagates Carry generates None of the above None Hint 4). If A=1, B=1, C=0, C+1=1 then the condition is _______________ ? No carry will generate No carry propagates Carry generates None of the above None Hint 5). When input A=B=Ci=0 then Ci+1 is equal to ________________? One Zero Two No carry generates None Hint 6). What is the standard form of SQRT-CSA? Square Root Carry Save Adder Square Root Common Save Adder Square Root Carry Simple Adder None of the above None Hint 7). The power consumption of ripple carry adder is around _______________ watts? 1.7318 1.9668 3.3595 None of the above None Hint 8). What is the standard form of CBA? Carry Boolean Logic Carry Boolean Line Carry Boolean Limit None of the above None Hint 9). When input A=B=0, Ci=1 then Ci+1 is equal to ________________? One Zero Two No carry generates None Hint 10). What is the standard form of RCA? Ripple Carry Adder Ripple Common Adder Ripple Carry Ahead Adder None of the above None Hint Carry Look Ahead Adder MCQs for Quiz 11). If A=1, B=0, C=0, C+1=0 then the condition is _______________ ? No carry will generate No carry propagates Carry generates None of the above None Hint 12). If A=1, B=1, C=1, C+1=1 then the condition is _______________ ? No carry will generate No carry propagates Carry generates None of the above None Hint 13). The power consumption of carry look ahead adder is around _______________ watts? 1.7318 1.9668 3.3595 None of the above None Hint 14). The number of CLBs is ____________ in ripple carry adder? 16 34 44 None of the above None Hint 15). The figure shown below is a logic diagram of ___________ adder? Ripple carry Half adder Full adder Carry look ahead adder None Hint 16). The figure shown below is a logic diagram of ___________ adder? Ripple carry Half adder Full adder Carry look ahead adder None Hint 17). What is the standard form of CIA? Carry Look Ahead Adder Carry Increment Adder Carry internal Adder None of the above None Hint 18). The delay of carry look ahead adder is around ______________ nano seconds? 212.79 143.69 102.74 None of the above None Hint 19). When input A=0, B=1, Ci=0 then Ci+1 is equal to ________________? One Zero Two No carry generates None Hint 20). The figure shown below is a block diagram of ___________ bit ripple carry adder? Four Eight Two Six None Hint Carry Look Ahead Adder MCQs for Exams 21). What are the advantages of carry look ahead adder? Reduces propagation delay Circuit is costlier Both a and b None of the above None Hint 22). If A=0, B=0, C=1, C+1=0 then the condition is _______________ ? No carry will generate No carry propagates Carry generates None of the above None Hint 23). The number of CLBs is ____________ in carry look ahead adder? 16 34 44 None of the above None Hint 24). What is the standard form of CSKA? Carry Select Adder Carry Skip Adder Carry Save Adder None of the above None Hint 24). Which gate is used in the below logic diagram? AND NAND NOR Carry look ahead adder None Hint 25). Which gate is used in the below logic diagram? AND NAND NOR Carry look ahead adder None Hint 26). If A=1, B=1, C=1, then Ci+1 is equal to ______________? One Zero Two None of the above None Hint 27). What is the standard form of CSA? Carry Single Adder Carry Simple Adder Carry Save Adder None of the above None Hint 28). The power consumption of carry select adder is around _______________ watts? 1.7318 1.9668 3.3595 None of the above None Hint 29). If A=1, B=0, C=1, C+1=1 then the condition is _______________ ? No carry will generate No carry propagates Carry generates None of the above None Hint 30). The figure shown below is a block diagram of ___________ bit ripple carry adder? Four Eight Two Six None Hint Carry Look Ahead Adder MCQs for Interviews 31). What are the disadvantages of carry look ahead adder? Reduces propagation delay Circuit is costlier Both a and b None of the above None Hint 32). If A=0, B=0, C=0, C+1=0 then the condition is _______________ ? No carry will generate No carry propagates Carry generates None of the above None Hint 33). The number of CLBs is ____________ in carry select adder? 16 34 44 None of the above None Hint 34). The delay of ripple carry adder is around ______________ nano seconds? 212.79 143.69 102.74 None of the above None Hint 35). What is the standard form of CSIA? Carry Select Adder Carry Skip Adder Carry Save Adder None of the above None Hint 36). Which gate is used in the below logic diagram? AND NAND NOR Carry look ahead adder None Hint 37). Which gate is used in the below logic diagram? AND NAND NOR Carry look ahead adder None Hint 38). What is the standard form of CBA? Carry Bypass Adder Carry Boolean Adder Carry Bit Adder None of the above None Hint 39). The delay of carry select adder is around ______________ nano seconds? 212.79 143.69 102.74 None of the above None Hint 40). The figure shown below is a block diagram of ___________ bit ripple carry adder? Four Eight Two Sixteen None Hint Read more about Carry Look Ahead Adder Please fill in the comment box below. Time's up