Tag: science & technology

Quizzes (551) Questions (11015)

Questions Related to science & technology

Multiple choice general knowledge science & technology

In a 2nd complement a number which is subtracted from other number is known as………

  1. Carry

  2. Minuend

  3. Subtrahend

  4. Sum
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In subtraction, the minuend is the number we subtract FROM, while the subtrahend is the number being subtracted. The question asks for the number being subtracted, making 'subtrahend' the correct answer. Carry and sum are unrelated to subtraction terminology.

Multiple choice general knowledge science & technology

A logic gate is an electronic circuit which

  1. makes logic decisions

  2. allows electron flow only in one direction

  3. Both A and B

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A logic gate is an electronic circuit that performs Boolean logic operations on binary inputs to produce binary outputs - essentially making logic decisions. Option B describes a diode, not a logic gate. Since B is incorrect, 'Both A and B' cannot be correct.

Multiple choice general knowledge science & technology

DVD, also known as

  1. Digital Versatile Disc

  2. Digital Video Disc

  3. Digital Virtual Disc

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

DVD officially stands for Digital Versatile Disc. While it was originally marketed as Digital Video Disc, the official name changed to reflect its versatility in storing various types of data beyond just video.

Multiple choice general knowledge science & technology

In a multiprocessing system, when all CPUs are not equal, it is known

  1. SNMP

  2. ASMP

  3. PMNP

  4. TCNP
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In asymmetric multiprocessing (ASMP), the microprocessors are not equal and have different capabilities or roles. Only one processor (the master) controls the system and assigns tasks to other slave processors. This contrasts with symmetric multiprocessing (SMP) where all processors are equal and can execute any task.

Multiple choice general knowledge science & technology

These elements can store data in the binary form, its relating to which element in sequential circuit

  1. Hard disk

  2. microprocessor

  3. transistor

  4. flip-flops
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Flip-flops are bistable multivibrators that can store one bit of binary data (0 or 1) in sequential circuits. They are the basic storage elements used in registers, counters, and memory. Unlike hard disks which are storage devices, flip-flops are the actual circuit elements that maintain binary state within digital systems.

Multiple choice general knowledge science & technology

The 8085 microprocessor is an Integrated Circuit that consists of ……………….. that helps during the execution of the program.

  1. Flip-flops

  2. transistors

  3. registers

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The 8085 microprocessor contains registers that store data, addresses, and intermediate results during program execution. Registers like accumulator, B, C, D, E, H, L, and program counter hold operands and addresses needed by the CPU. Flip-flops and transistors are indeed part of the IC, but registers are the functional storage units used during execution.