Q:

The rate of change of linear momentum of a body falling freely under gravity is equal to it's ____ ?

A) Kinetic Energy	B) Weight
C) Potential Energy	D) Impulse

Answer & Explanation Answer: B) Weight

Explanation:

Rate of change of impulse equals the force . In case of freely falling body the only force is the weight.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams
Job Role: Bank Clerk

63 16202

Q:

The first Asian Secretary general of U.N.O was

A) Vijaya Laxmi pandit	B) U.Thant
C) Trygve Lie	D) Kurt Waldheum

Answer & Explanation Answer: C) Trygve Lie

Explanation:

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Filed Under: World Organisations

71 16194

Q:

Temporary hardness is due to the presence of

A) Calcium carbonate	B) calcium bicarbonate
C) magnesium sulphate	D) calcium sulphate

Answer & Explanation Answer: B) calcium bicarbonate

Explanation:

Temporary hardness is due to the presence of soluble bicarbonates of calcium and magnesium in water. Permanent hardness is due to the presence of sulphates and chlorides of calcium and magnesium.

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Filed Under: Chemistry

41 16166

Q:

Gondwana coalfields are found in

A) Assam	B) Madhya Pradesh
C) Meghalaya	D) Jammu & Kashmir

Answer & Explanation Answer: B) Madhya Pradesh

Explanation:

Nearly 95% of india's coal is from the Gondwana formation (which is in the Satpuras) and is found in Bihar, Madhya Pradesh, Orissa, West Bengal, Maharashtra and Andhra Pradesh. Tertiary variety is found in Assam, Arunachal Pradesh, Meghalaya, Nagaland, and Jammu and Kashmir, Lingite reserves occur in Gujarat, Jammu and Kashmir, Rajasthan and Tamilnadu.

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Filed Under: Indian Geography

44 16162

Q:

Mudumalai Sanctuary is famous for

A) Tigers	B) Birds
C) Elephants	D) Bisons

Answer & Explanation Answer: A) Tigers

Explanation:

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Filed Under: Indian Geography

95 16155

Q:

The electrochemical cell stops working after some time because ________

A) Electrode potential of both the electrodes becomes zero	B) One of electrodes completely vanishes
C) Electrode potential of both electrodes equalizes	D) The reaction reverses its direction

Answer & Explanation Answer: C) Electrode potential of both electrodes equalizes

Explanation:

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Filed Under: Chemistry

92 16146

Q:

main()

{

fork();

printf(“Hello World!”);

}

Output for the above unix program is

A) Hello World!	B) Hello World!Hello World!
C) Hello World	D) None

Answer & Explanation Answer: B) Hello World!Hello World!

Explanation:

The fork creates a child that is a duplicate of the parent process. The child begins from the fork().All the statements after the call to fork() will be executed twice.(once by the parent process and other by child). The statement before fork() is executed only by the parent process

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Filed Under: Operating Systems
Exam Prep: GRE

1 16145

Q:

The entropy change involved in the isothermal reversible expansion of 2 moles of an ideal gas from a volume of 10 $d m^{3}$ at 27°C is to a volume of 100 $d m^{3}$

A) 42.3 J/ mole / K	B) 38.3 J/ mole / K
C) 35.8 J/ mole / K	D) 32.3 J/ mole / K

Answer & Explanation Answer: B) 38.3 J/ mole / K

Explanation:

$∆ s = n R \ln \frac{v 2}{v 1}$

$= 2.303 n R \log \frac{v 2}{v 1}$ = $2.303 \times 2 \times 8.314 \times \log (\frac{100}{10})$ = $38.3 J$ $m o l^{- 1}$ $k^{- 1}$

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Filed Under: Chemistry
Exam Prep: AIEEE

43 16128

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