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Q:

The p wave of a normal Electrocardiogram indicates

A) atrial depolarization	B) Ventricular repolarization
C) atrial repolarization	D) Ventricular depolarization

Answer & Explanation Answer: A) atrial depolarization

Explanation:

The P wave in the ECG represents atrial depolarization, which results in atrial contraction, or atrial systole.

The P wave is a summation wave generated by the depolarization front as it transits the atria.

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Filed Under: Physics
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Q:

Which of the following is not a function of the Control Unit?

A) Interpret instructions	B) Read instructions
C) Execute instructions	D) Direct operations

Answer & Explanation Answer: B) Read instructions

Explanation:

Control Unit can perform the functions Interpret instructions, Execute instructions and Direct operations. But Reading instructions is not a function of the Control Unit.

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Filed Under: Computer
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Q:

Which part of the flame is the hottest?

A) Blue Zone	B) Luminous Zone
C) Dark Zone	D) Non - Luminous Zone

Answer & Explanation Answer: A) Blue Zone

Explanation:

Blue Zone is the hottest part of the flame that is where the flame has the most Oxygen and you are getting complete combustion. It is about 1400 degrees Centigrades. The Reddish part (Non - Luminous Zone) is the coolest part, about 800 deg C.

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Q:

Unlike Mitosis, Meiosis results in the formation of

A) 2N daughter cells	B) Haploid cells
C) body cells	D) Diploid cells

Answer & Explanation Answer: B) Haploid cells

Explanation:

Unlike Mitosis, Meiosis results in the formation of 4 Genetically different cells.

Meiosis results in the formation of 4 Haploid daughter cells from one Diploid parent cell.

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Filed Under: Biology
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Q:

Which statement best describes electrons?

A) Electrons orbit around the nucleus	B) Electrons are composed of protons and neutrons
C) Electrons reside in the nucleus	D) Electrons have a positive charge

Answer & Explanation Answer: A) Electrons orbit around the nucleus

Explanation:

Electrons orbit around the nucleus is correct about them.

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Filed Under: Chemistry
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Q:

A merchant commences with a certain capital and gains annually at the rate of 30 per cent. At the end of 2 years he has worth Rs 10,000. What was the original capital?

A) Rs. 4987	B) Rs. 5148
C) Rs. 5917	D) Rs. 6254

Answer & Explanation Answer: C) Rs. 5917

Explanation:

Let the Original capital amount be Rs. P

Given after 2 years the amount is Rs. 10000

Rate of interest = 30%

According to the question,

$P x \frac{130}{100} x \frac{130}{100} = 10000 = > P = \frac{1000000}{169} = 5917$

Therefore, the capital amount P = Rs. 5917

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Filed Under: Percentage
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Q:

Lightning heats the surrounding air to

A) 300 deg Cent	B) 3000 deg Cent
C) 30000 deg Cent	D) 300000 deg Cent

Answer & Explanation Answer: C) 30000 deg Cent

Explanation:

Lightning is extremely hot — a flash can heat the air around it to temperatures five times hotter than the sun’s surface. This heat causes surrounding air to rapidly expand and vibrate, which creates the pealing thunder we hear a short time after seeing a lightning flash.

Lightning heats the surrounding air to about 30,000 degrees Centigrades.

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Filed Under: Physics
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Q:

What does this symbol mean '&'?

A) Caret	B) Bar
C) Ampersand	D) Reversed Caret

Answer & Explanation Answer: C) Ampersand

Explanation:

'&' is a Logical Symbol and is called as Ampersand.

^ is called Caret

- is called Bar

v is called Reversed Caret.

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Filed Under: Analytical Reasoning
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