GATE Practice Question and Answer

Q: Is DRAM Volatile or Nonvolatile? 1629 0

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Answer :
Explanation :

DRAM is a Volatile random-access memory (VRAM).   Volatile random-access memory (VRAM) is random-access memory that retains its information when power is turned on. Examples of volatile memory are primary storage (typically dynamic RAM, DRAM), and fast CPU cache memory (typically static RAM, SRAM, which is fast but energy-consuming and offer lower memory capacity per area unit than DRAM). Non-volatile random-access memory (NVRAM) is random-access memory that retains its information when power is turned off. Examples of non-volatile memory are flash memory (used as secondary memory) and ROM, PROM, EPROM and EEPROM memory (used for storing firmware such as BIOS).

Q: If L exceeds K by 30%, then K is less than L by ? 1628 0

  • 1
    14 2/5 %
    Correct
    Wrong
  • 2
    23 1/3 %
    Correct
    Wrong
  • 3
    20 %
    Correct
    Wrong
  • 4
    16 %
    Correct
    Wrong
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Answer : 2. "23 1/3 %"
Explanation :

Answer: B) 23 1/3 % Explanation: K = 100 L = 130130------ 30100------- ? => 23 1/13 %

Q: In following number series only one number is wrong. Find out that wrong or odd number in the series? 6, 78, 858, 7722, 54055, 270270 1626 0

  • 1
    270270
    Correct
    Wrong
  • 2
    54055
    Correct
    Wrong
  • 3
    7722
    Correct
    Wrong
  • 4
    858
    Correct
    Wrong
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Answer : 2. "54055"
Explanation :

Answer: B) 54055 Explanation: Here the given series follows a pattern that, multiplying the number with odd numbers in decreasing order starting with 13. That is,   6 × 13 = 78   65 × 11 = 858   858 × 9 = 7722   7722 × 7 = 54054   54054 × 5 = 270270   Hence, the wrong number is 54055

Q: Metals are good conductors of electricity because 1626 0

  • 1
    The atoms are lightly packed
    Correct
    Wrong
  • 2
    They contain free electrons
    Correct
    Wrong
  • 3
    They have high melting point
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 2. "They contain free electrons"
Explanation :

Answer: B) They contain free electrons Explanation: Metal particles are held together by strong metallic bonds, which is why they have high melting and boiling points. The free electrons in metals can move through the metal, allowing metals to conduct electricity. Because the electrons in the atom's higher energy levels can separate from the atoms easily, they can be pulled out with very little energy. Because the molecular structure of the metal is such that 'free electrons' are free to move, thus being categorized as electrically conductive.   For example, copper is used for electrical wiring because it is a good conductor of electricity.

Q: Book is to chapter as organization is to 1626 0

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Answer :
Explanation :

A book is consists of various chapters, so as the Organization consists of various departments. Therefore if Book is to chapter so organization is to department.   Hence, Book : Chapter :: Organisation : Department.

Q: What is the reciprocal of a negative number? 1625 0

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Answer :
Explanation :

The reciprocal of a negative number is always a negative number. So that the number and its reciprocal multiply to 1.    All real numbers except 0 have reciprocals.

Q: 90 D in RA? 1625 0

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Answer :
Explanation :

90 D in RA means 90 Degrees in Right Angle. It is a logic question which is to be eloborated.   Some more of its kind are: 1. 52 W in a Y     -    52 Weeks in a Year 2. 7 C in a R        -    7 Colours in a Rainbow 3. 9 P in SS 4. 5 C in an OF 5. 12 S of the Z

Q: Write 0.125 as a percent %? 1623 0

  • 1
    12%
    Correct
    Wrong
  • 2
    12.5%
    Correct
    Wrong
  • 3
    13%
    Correct
    Wrong
  • 4
    13.5%
    Correct
    Wrong
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Answer : 2. "12.5%"
Explanation :

Answer: B) 12.5% Explanation: Here to convert 0.125 into % First convert to fractio Multiply and divide by 1000 => 0.125 x 10001000 = 1251000 = 18 => Now, in percentage18 x 100 = 12.5%

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