Ripple Carry Adder Question & Answers September 29, 2022 By WatElectronics This article lists 40 Ripple Carry Adder MCQs for engineering students. All the Ripple Carry Adder Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of Ripple Carry Adder. An electronic device designed for performing binary addition of more than 3 bits is called a ripple carry adder. A ripple carry adder is a combinational logic circuit that adds n number of bits. They are 4-bits, 8-bits, and 16bits. A ripple carry adder is mainly designed to overcome the limitation of half adder and full adder operation. It comprises of sum and carry components and is designed using logic gates such as basic logic gates –AND, OR, NOT; and universal gates XOR and NAND. The important point of RCA is that the final output is already known whenever carry output is generated by every full adder stage and provided as input to the next stage. The advantages of ripple carry adder includes replacing HA and FA operation, simplex, and performing n-bit addition. The disadvantages of ripple carry adder includes High propagation delay, Minimum operation speed, and Multi-level logic. The applications of ripple carry adder includes a microprocessor, DSP, and N-bit adders. 1). A half adder consist of ___ number of binary sequence bits numbers? 2 3 4 5 Hint 2). A full adder consist of ___ number of binary sequence bits numbers? 2 3 4 5 Hint 3). Which of the following are ripple carry adder? 4 bits 8 bits 16 bits All the above Hint 4). ____ bit sequence is performed using ripple carry adder for accurate results? 1 2 3 n Hint 5). A ripple carry adder is a _____ circuit? Logic Electric Mechanical Both b and c Hint 6). Which of the following is the output of 1bit full adder when input is (000)? Logic 1 Logic 0 Logic X Both a and c Hint 7). Which of the following is the output of 1bit full adder when input is (100)? Logic 1 Logic 0 Logic X Both a and c Hint 8). Which of the following is the output of 1bit full adder when input is (010)? Logic 1 Logic 0 Logic X Both a and c Hint 9). Which of the following is the output of 1bit full adder when input is (110)? Logic 1 Logic 0 Logic X Both a and c Hint 10). Which of the following is the output of 1bit full adder when input is (001)? Logic 1 Logic 0 Logic X Both a and c Hint 11). Which of the following is the output of 1bit full adder when input is (101)? Logic 1 Logic 0 Logic X Both a and c Hint Ripple Carry Adder MCQs for Exams 12). Which of the following is the output of 1bit full adder when input is (011)? Logic 1 Logic 0 Logic X Both a and c Hint 13). Which of the following is the output of 1bit full adder when input is (011)? Logic 1 Logic 0 Logic X Both a and c Hint 14). How many half adders does a full adder comprises of? 2 3 4 5 Hint 15). Which of the following Logic gates are used for constructing a full adder? AND NAND NOR Both b and c Hint Read more about NAND logic gate. 16). Which of the following is the output of NAND gate when input is (00)? Logic 1 Logic 0 Logic X All the above Hint 17). Which of the following is the output of NAND gate when input is (01)? Logic 1 Logic 0 Logic X All the above Hint 18). Which of the following is the output of NAND gate when input is (10)? Logic 1 Logic 0 Logic X All the above Hint 19). Which of the following is the output of NAND gate when input is (11)? Logic 1 Logic 0 Logic X All the above Hint 20). Which of the following is the output of NOR gate when input is (11)? Logic 1 Logic 0 Logic X All the above Hint Ripple Carry Adder MCQs for Students 21). Which of the following is the output of NOR gate when input is (00)? Logic 1 Logic 0 Logic X All the above Hint 22). Which of the following is the output of NOR gate when input is (01)? Logic 1 Logic 0 Logic X All the above Hint 23). Which of the following is the output of NOR gate when input is (10)? Logic 1 Logic 0 Logic X All the above Hint Read more about NOR Gate. 24). A ripple carry adder uses ___ number of full adders for performing n-bit operation? 1 2 3 n Hint 25). Which of the following is applications of ripple carry adder? Microprocessors DSP N-bit adders All the above Hint 26). Which of the following are the advantages of ripple carry adder? Performs n-bit addition Simplex Replaces HA and FA All the above Hint 27). Which of the following type of logic gates are used for designing combinational logic circuit? Basic logic gates Universal logic gates NOT gate All the above Hint 28). Which of the following are the examples of combinational logic circuits? Encoders Decoders Flip-flops Both a and b Hint 29). Which of the following are the applications of combinational circuits? Encoder Decoder Ripple carry adder All the above Hint Read more about combinational circuits . 30). Which of the following are the components if combinational circuit? ALU Code converters Data transmission All the above Hint Ripple Carry Adder MCQs for Quiz 31). Which of the following are the ALU based combinational circuit performs? PLDs Comparators Subtractors All the above Hint 32). Which of the following are the types of data transmission are combinational logic circuits? MUX Demux Encoders All the above Hint 33). Which of the types of code converters are combinational logic circuits? BCD Binary 7 segments All the above Hint 34). In a ripple carry adder a group of bits designed to add multiple bits to obtain ___ number of output bits? 1 4 3 2 Hint 35). Which of the following is the disadvantages of ripple carry adder? High propagation delay Minimum operation speed Multi level logic All the above Hint 36). ___ is the major consideration for design of digital circuit? Volume Cost Size Weight Hint 37). Which of the following is the output of XOR logic gate when input is (0,0)? Logic 0 Logic 1 Logic X Both b and c Hint 38). Which of the following is the output of XOR logic gate when input is (0,1)? Logic 0 Logic 1 Logic X Both b and c Hint 39). Which of the following is the output of XOR logic gate when input is (1,0)? Logic 0 Logic 1 Logic X Both b and c Hint 40). Which of the following is the output of XOR logic gate when input is (1,1)? Logic 0 Logic 1 Logic X Both b and c Hint For More MCQs Carry Look Ahead Adder Question & Answers Please fill in the comment box below. Time's up