Home / Online Test / 4-Bit Parallel Adder/Subtractor Objective Questions – Part 1 Online Test 4-Bit Parallel Adder/Subtractor Objective Questions – Part 1 S Bharadwaj ReddyLeave a comment 4-Bit Parallel Adder/Subtractor Objective Questions Digital Electronics Objective Questions 0% Which of the following is correct for full adders? Full adders have the capability of directly adding decimal numbers Full adders are used to make half adders Full adders are limited to two inputs since there are only two binary digits In a parallel full adder, the first stage may be a half adder Correct! Wrong! - Continue >> The binary subtraction of 0 – 0 = ? Difference = 1, borrow = 0 Difference = 0, borrow = 0 Difference = 1, borrow = 1 Difference = 0, borrow = 1 Correct! Wrong! - Continue >> What are the two types of basic adder circuits? Sum and carry Half-adder and full-adder One and two’s-complement Asynchronous and synchronous Correct! Wrong! - Continue >> Controlled buffers can be useful In comparison of component’s output with its input All of the Mentioned To control the circuit’s output into the bus In increasing the output from its low input Correct! Wrong! - Continue >> Controlled inverter is also known as Both controlled buffer and NOT gate NOT gate Controlled buffer None of the Mentioned Correct! Wrong! - Continue >> A logic circuit that provides a HIGH output for both inputs HIGH or both inputs LOW is OR gate NAND gate Ex-OR gate Ex-NOR gate Correct! Wrong! - Continue >> Why XOR gate is called an inverter? It behaves like a NOT gate None of the Mentioned Because of the same output Because of the same input Correct! Wrong! - Continue >> How many basic binary subtraction operations are possible? 1 2 3 4 Correct! Wrong! - Continue >> When performing subtraction by addition in the 2’s-complement system: The minuend and the subtrahend are both changed to the 2’s-complement The minuend is left in its original form and the subtrahend is changed to its 2’s-complement The minuend and subtrahend are both left in their original form The minuend is changed to 2’s-complement and the subtrahend is left in its original form Correct! Wrong! - Continue >> What is the major difference between half-adders and full-adders? Full-adders are made up of two half-adders Full adders can handle double-digit numbers Full adders have a carry input capability Half adders can handle only single-digit numbers Correct! Wrong! - Continue >> The selector inputs to an arithmetic/logic unit (ALU) determine the: Clock frequency to be used Selection of the IC Data word selection Arithmetic or logic function Correct! Wrong! - Continue >> What is the first thing you will need if you are going to use a macro-function? A complicated design project An experienced design engineer Experience in HDL Good documentation Correct! Wrong! - Continue >> Share the quiz to show your results ! Facebook Facebook Just tell us who you are to view your results ! Show my results >> 4-Bit Parallel Adder/Subtractor – 1 I got %%score%% of %%total%% right Share your results Facebook Facebook Twitter Google+ ↺ PLAY AGAIN !
