Q:

Two metallic plate of equal thickness and coefficient thermal conductivity K1 and K2 put together face to face. A common plate is constructed. What is equivalent K?

A) K1k2/k1+k2	B) 2k1k2/k1+k2
C) K1+k2/k1k2	D) None

Answer & Explanation Answer: B) 2k1k2/k1+k2

Explanation:

We know that,

The equivalent K = $\frac{L 1 + L 2}{\frac{L 1}{K 1} + \frac{L 2}{K 2}}$

where L1 & L2 are plate1 & Plate2 thicknesses, K1 & K2 are coefficient thermal conductivity of plate1 & Plate2 respectively.

But here L1 = L2 = L (say)

Then K = L+L/(L/K1 + L/K2) = $\frac{2 K 1 K 2}{K 1 + K 2}$

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Filed Under: Physics
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12 7179

Q:

Decibel is the unit of

A) speed of light	B) intensity of sound
C) intensity of heat	D) None of these

Answer & Explanation Answer: B) intensity of sound

Explanation:

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Filed Under: Physics

15 7178

Q:

Which of the following is not a property of water?

A) Low density	B) Low specific heat
C) Low heat of vaporisation	D) All of the above

Answer & Explanation Answer: D) All of the above

Explanation:

Water can moderate temperature because of the two properties: high-specific heat and the high heat of vaporization.

Hence, all the above given options are not the properties of water.

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Filed Under: Chemistry
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4 7176

Q:

The lead character in the film ' The Bandit Queen ' has been played by

A) Shabana Azmi	B) Rupa Gangulu
C) Seema Biswas	D) Arundhati ray

Answer & Explanation Answer: C) Seema Biswas

Explanation:

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Filed Under: Books and Authors

10 7174

Q:

Which shows the order in which vertebrates evolved?

A) fish, reptiles, amphibians, birds, mammals	B) amphibians, fish, reptiles, birds, mammals
C) amphibians, fish, birds, reptiles, mammals	D) fish, amphibians, reptiles, birds, mammals

Answer & Explanation Answer: D) fish, amphibians, reptiles, birds, mammals

Explanation:

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Filed Under: Biology
Exam Prep: Bank Exams

3 7173

Q:

State game of Madhya Pradesh?

A) Mallakhamba	B) Lagori
C) Kabaddi	D) Kho Kho

Answer & Explanation Answer: A) Mallakhamba

Explanation:

State_game_of_Madhya_Pradesh1552129369.jpg image

The State game of Madhya Pradesh is Mallakhamba.

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Filed Under: Indian Geography
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11 7170

Q:

What is the name of the messaging platform to be used by the Indian Army shortly?

A) Safe Communication Network	B) Secure Application for Internet
C) Safe Messaging Service	D) Secure Instant Messaging

Answer & Explanation Answer: B) Secure Application for Internet

Explanation:

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Filed Under: General Awareness
Exam Prep: Bank Exams

2 7170

Q:

In plants, exchange of gases takes place through

A) Stomata	B) Palisade tissue
C) Spongy tissue	D) mid rib

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