151. To count 1000 bottles in a milk plant, the minimum number of flip flops requires is
152. Decimal 8 in excess-3 code =
153. The inputs to a 3 bit binary adder are 1112 and 1102. The output will be
154. BCD number 1100111 = __________ 10
155. The K-map for a Boolean function is shown in figure. The number of essential prime implicants for this function is
156. When microprocessor processes both positive and negative numbers, the representation used is
157. An AND gate has four inputs. One of the inputs is low and other inputs are high. The output
158. In the given figure, the flip flop is
159. The number of switching functions of 3 variables are
160. The applications of shift registers are Time delayRing counterSerial to parallel data conversionSerial to serial data conversion Which of the above are correct?
161. Assertion (A): ECL is fast as compared to TTL.Reason (R): ECL dissipates less power than TTL.
162. Assertion (A): Synchronous counter has higher speed of operation than ripple counter Reason (R): Synchronous counter uses high speed flip flops.
163. What will be the maximum conversion time in 6 bit dual slope A/D converter uses a reference of -6v and a 1 MHz clock. It uses a fixed count of 40 (101000).
164. The modulus of counter in the given figure is
165. The input to a parity detector is 1001. The output is
166. A 4 bit modulo 16 ripple counter uses JK flip-flops. If the propagation delay of each FF is 50 ns. The max. clock frequency that can be used is equal to
167. As the number of flip flops are increased, the total propagation delay of
168. In a 4 input OR gate, the total number of High outputs for the 16 input states are
169. For the ring oscillator shown in the figure, the propagation delay of each inverter is 100 pico sec. What is the fundamental frequency of the oscillator output __________
170. If A is 1011, A" is
171. Which of the following is not a characteristic of a flip flop?
172. The number of flip flops needed for a Mod 7 counter are
173. For AB + A C + BC = AB + A C the dual form is
174. A DAC has full scale output of 5 V. If accuracy is ± 0.2% the maximum error for an output of 1 V is
175. Binary number 1101101101 is equal to decimal number