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Q:

Which unit holds data temporarily?

A) Secondary storage unit B) Output Unit
C) Primary Memory Unit D) Input unit
 
Answer & Explanation Answer: C) Primary Memory Unit

Explanation:

Memory is the part of the computer that temporarily holds data and instructions before and after they are processed by the ALU.

 

Memory is also known as primary storage, primary memory, main storage, internal storage, and main memory.

 

Manufacturers often use the term RAM, which stands for random-access memory.​

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Q:

Ethanol is converted into ethoxy ethane,

A) by heating excess of ethanol with conc. H2SO4 at 140°C B) by treating with conc. H2SO4 at room temperature
C) by treating with conc. H2SO4 at 273 K D) by heating Ethanol with excess of conc. H2SO4 at 443 K
 
Answer & Explanation Answer: A) by heating excess of ethanol with conc. H2SO4 at 140°C

Explanation:
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Q:

Consider the following constituent gases of the atmosphere :

1. Argon

2. Neon

3. Helium

4.Ceirbon dioxide

Which one of the following is the correct ascending sequence of the above gases in terms of the volume percentage?

A) 1-3-2-4 B) 1-4-2-3
C) 4-2-3-1 D) 2-4-1-3
 
Answer & Explanation Answer: B) 1-4-2-3

Explanation:
Composition of Dry Air (Substance, % by volume)
Nitrogen, N2 78.08
Oxygen, O2
20.95
Argon, Ar 0.93
Carbon dioxide, CO2 0.033
Neon, Ne 0.0018
Helium, He 0.00052
Methane, CH4 0.0002
Krypton, Kr 0.00011
Dinitrogen oxide, N2O 0.00005
Hydrogen, H2 0.00005
Ozone, O3 0.000001
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Q:

Select the synonym of

clasp

A) grip B) commute
C) clemency D) acquittal
 
Answer & Explanation Answer: A) grip

Explanation:
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Q:

Whose science is Seismography?

 

A) Rivers B) Earthquake
C) Mountain D) Volcano
 
Answer & Explanation Answer: B) Earthquake

Explanation:
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Q:

Select the alternative that shows a similar relationship as the given pair -

 

Impulsive : Impromptu

 

A) Moderate : Increase B) Flawless : Impeccable
C) Perpetual : Transitory D) Resistant : Receptive
 
Answer & Explanation Answer: B) Flawless : Impeccable

Explanation:
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Q:

In HTML, ______________ is a set of links designed as buttons.

 

A) Header area B) Menu bar
C) Body of the page D) Footer area
 
Answer & Explanation Answer: B) Menu bar

Explanation:
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Q:

How many moles are there in 140g of Si (atomic mass of silicon is 28)

A) 5 B) 10
C) 28 D) 140
 
Answer & Explanation Answer: A) 5

Explanation:
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