Q:

In the following question, choose the word opposite in meaning to the given word.

Theoretical

A) punctual	B) uncritical
C) emotional	D) practical

Answer & Explanation Answer: D) practical

Explanation:

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Q:

In a face centred cubic lattice, atom A occupies the corner positions and atom B occupies the face centre positions. If one atom of B is missing from one of the face centred points, the formula of the compound is

1) $A_{2} B_{5}$

2) $A_{3} B_{2}$

3) $A_{2} B_{3}$

4) $A_{3} B_{4}$

A) Option 1	B) Option 2
C) Option 3	D) Option 4

Answer & Explanation Answer: A) Option 1

Explanation:

$Z_{A} = \frac{8}{8}$ ; $Z_{B} = \frac{5}{2}$

So formula of compound is $A B_{\frac{5}{2}}$

i.e., $A_{2} B_{5}$ .

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Filed Under: Chemistry
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Q:

Every component of your computer is either

A) Hardware or CPU	B) RAM/CPU or Hardware
C) Hardware or Software	D) System or Application software

Answer & Explanation Answer: C) Hardware or Software

Explanation:

All the computers have components that are either Hardware or Software.

The five major components of computers are :

-> Input Unit

-> Output Unit

-> CPU Unit

-> ALU Unit and

-> Control Unit.

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Q:

Which component of an IED creates an electrical charge?

A) activator	B) fuse
C) explosive	D) power source

Answer & Explanation Answer: D) power source

Explanation:

The power source such as a Battery of an IED creates an electrical charge.

What are IED's ::

An Improvised Explosive Device (IED) is a bomb constructed and deployed in ways other than in conventional military action. It may be constructed of conventional military explosives, such as an artillery shell, attached to a detonating mechanism. IEDs are commonly used as roadside bombs.

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Filed Under: Physics
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10 9070

Q:

Ovules are found within structure

A) E	B) D
C) B	D) A

Answer & Explanation Answer: C) B

Explanation:

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Filed Under: Biology
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Q:

Atmospheric pressure exerted on earth is due to

A) gravitational pull	B) rotation of earth
C) revolution of earth	D) uneven heating of earth

Answer & Explanation Answer: A) gravitational pull

Explanation:

The atmospheric pressure at the surface of the Earth is due to gravitational pull of the earth and is about 14.7 psi.

That means that the weight of a column of air which has a cross section of 1 square inch and which stretches from the surface of the Earth to space is 14.7 pounds.

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Q:

Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be added to 4 kg of water to prevent it from freezing at –6°C will be: (Kf for water = 1.86 Kg/mol and molar mass of ethylene glycol = 62 kg/mol)

A) 204.60 g	B) 304.30 g
C) 804.32 g	D) 400.00 g

Answer & Explanation Answer: C) 804.32 g

Explanation:

$∆ T_{f} = k_{f} . m$

for ethylene glycol in aq. solution

$∆ T_{f} = k_{f} \frac{w}{m o l . w t} \times \frac{1000}{w t . o f s o l v e n t} 6 = \frac{1.86 x w x 1000}{62 x 4000}$

=> w = 800 g

So, the weight of solute should be more than 800 g.

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Filed Under: Chemistry
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Q:

Among the following animals , the figures of which are found in the state emblem of india?

A) Bull, deer and eagle	B) Deer and elephant
C) Elephant, Tiger and Bull	D) Horse and Bull

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