Ripple Counter Question & Answers August 10, 2022 By WatElectronics This article lists 30 Ripple Counter MCQs for Engineering Students. The Ripple Counter 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 Ripple Counter. The ripple counter is one of the asynchronous counters which do not have a similar clock pulse for each and every flip flop. In an asynchronous/ripple counter flip-flops are not clocked simultaneously and the circuit is simple for more number of states. In an asynchronous/ripple counter the changing state bits are used as clocks to subsequent state flipflops, whereas in synchronous counters all state bits change under the control of a single clock. The maximum operating frequency is low in an asynchronous/ripple counter whereas in synchronous counters the maximum operating frequency is high. The speed is slow as the clock is propagated through a number of stages in an asynchronous/ripple counter. In synchronous counters, flip-flops are clocked simultaneously and the circuit becomes more complicated when the number of states increases. The logic circuit of an asynchronous/ripple counter is simple and the output of the preceding flip-flop in an asynchronous/ripple counter is connected to the clock of the next flip-flop. When compared to synchronous counters the asynchronous/ripple counters are slow because of the propagation delay. 1). If the number of flipflops is two then the maximum possible MOD is ________________? Four Eight Sixteen None of the above None Hint 2). Which one of the following IC is a single decade ripple counter? 74LS90 74LS92 74LS93 74HC930 None Hint 3). In which one of the following counters, the flip flops are not clocked simultaneously? Synchronous counter Asynchronous/ripple counter Both a and b None of the above None Hint 4). In which one of the following counters, the circuit will be simple even if the number of states increases? Synchronous counter Asynchronous/ripple counter Both a and b None of the above None Hint 5). Which one of the following is a basic building block of counters? R-S flip flops J-K flip flops T flip flops None of the above None Hint 6). In which one of the following one the output will always follow a sequence either in downward or upward direction? Counters Registers Both a and b None of the above None Hint 7). Which one of the following counters is designed using D flip flop? Ring counter Ripple counter Both a and b None of the above None Hint 8). In which one of the following counters the counter output is in sequence? Ring counter Ripple counter Both a and b None of the above None Hint 9). The figure shown below is a ______________ bit up-down counter? 4-bit 2-bit 1-bit 8-bit None Hint 10). If the number of flipflops is three, then the maximum possible MOD is ________________? Four Eight Sixteen None of the above None Hint Ripple Counter MCQs for Students 11). Which one of the following IC is a single divide by twelve ripple counters? 74LS90 74LS92 74LS93 74HC930 None Hint 12). Which one of the following is also called a parallel counter? Synchronous Asynchronous Both a and b None of the above None Hint 13). Which one of the following is an example of sequential logic circuit? Encoder Demux Counter All of the above None Hint 14). The counters are categorized into _____________ types? One Two Three Four None Hint 15). The figure shown below is a block diagram of ______________ bit counter? 4-bit 3-bit 1-bit 8-bit None Hint 16). In which one of the following counters, the maximum frequency of operation is low? Synchronous Asynchronous Both a and b None of the above None Hint 17). The figure shown below is a block diagram of ______________ bit asynchronous counter? 4-bit 3-bit 1-bit 8-bit None Hint 18). In which one of the following counters, the clock is same for all flip flops? Synchronous Asynchronous Both a and b None of the above None Hint Read more about Synchronous Counter 19). The figure shown below is a block diagram of ______________ counter? Encoder Decoder Asynchronous counter [up mode] Asynchronous counter [down mode] None Hint 20). If the number of flipflops is four then the maximum possible MOD is __________________? Four Eight Sixteen None of the above None Hint Ripple Counter MCQs for Exams 21). Which one of the following IC is a single four-bit ripple counter? 74LS90 74LS92 74LS93 74HC930 None Hint 22). Which one of the following is an example of combinational circuit? Encoder Flip flop Counter All of the above None Hint 23). Which one of the following counters don’t have fixed time? Asynchronous counters Synchronous counters Both a and b None of the above None Hint 24). In which one of the following counters, the clock is different for all flip flops? Synchronous Asynchronous Both a and b None of the above None Hint 25). In which one of the following counters the maximum frequency of operation is high? Synchronous Asynchronous Both a and b None of the above None Hint 26). In which one of the following counters, there is no inherent propagation delay? Asynchronous counters Synchronous counters Both a and b None of the above None Hint 27). In which one of the following counters the hardware requirement is more? Synchronous Asynchronous Both a and b None of the above None Hint 28). In which one of the following counters, the glitches are present in output? Synchronous Asynchronous Both a and b None of the above None Hint 29). Which one of the following is also called a ripple counter? Synchronous Asynchronous Both a and b None of the above None Hint 30). Which one of the following IC is a dual decade ripple counter? 74LS90 74LS92 74LS93 74HC930 None Hint Please fill in the comment box below. Time's up
