Digital Electronics - 8 - Free MCQ Practice Test with solutions, GATE ECE

The subtraction of a binary number Y from another binary number X, done by adding the 2's complement of Y to X results in a binary number without overflow. This implies that the result is

The decimal equivalent of the binary number 10110.0101011101 is

The initial contents of the 4 bit serial in parallel out right shift, shift register shown in figure is 0110. After three clock pulses are applied, the contents of the shift register will be

In standard TTL the totem pole stage refers to

In 8085 microprocessor the value of the most significant bit of the result following the execution of any arithmetic or Boolean instruction is stored in

Which of the following correctly declares a pointer to an array of intergers in C?

With 2's complement representation, the range of values that can be represented on the data bus of an 8 bit microprocessor is given by

In a modem digital computer, a subtractor in normally not used because

In which one of the following types of analog to digital convertors the conversion time is practically independent of the amplitude of the analog signal?

In 8085 microprocessor, which of the following is not vectored interrupt?

A clock signal driving a 6-bit ring counter has a frequency of 1 MHz. How long is each timing bit high?

A two-input OR gate is designed for positive logic. However, it is operated with negative logic. The resulting logic operation will then be

A twisted ring counter consisting of 4 FF will have

Assertion (A): In a serial in-serial out shift register, access is available only to the left most or right most flip flops

Reason (R): If the output of a shift register is feedback to serial input it can be used as a ring counter.

IC counters are

2's complement representation of a 16 bit number (one sign bit and 15 magnitude bits) is FFFF. Its magnitude in decimal representation is

Out of SAM and RAM

The method used to transfer data from I/O units to memory by suspending the memory-CPU data transfer for one memory cycle is called

Bipolar IC memories are fabricated using

For K map of the given figure the simplified Boolean expression is

Choose the appropriate turn on and turn off time of a FET

Consider the following statements

1. ECL has least propagation delay
2. TTL has largest fan out
3. CMOS has highest noise margin
4. TTL has lowest power dissipation

The circuit of the given figure is

In Schottky TTL, a Schottky diode is used for

Which of the following ICs has only one NAND gate?