Q:

A ball is thrown vertically upwards. Assuming the air resistance to be constant and cosiderable:

A) the time of ascent < the time of descent	B) the time of ascent > the time of descent
C) the time of ascent = the time of descent	D) none of these

Answer & Explanation Answer: A) the time of ascent < the time of descent

Explanation:

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Filed Under: Physics

42 9161

Q:

Which one of the following is the most characteristic property of an element?

A) Density	B) Boiling point
C) Mass number	D) Atomic number

Answer & Explanation Answer: D) Atomic number

Explanation:

Atomic number is the fundamental properties of an element. Every atom is identified by its unique atomic number. Atomic number is equal to the number of protons present in an atom of the element.

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Filed Under: Chemistry
Exam Prep: Bank Exams

0 9157

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
Exam Prep: AIEEE

8 9155

Q:

Amrita Pritam's work " A Revenue Stamp" is

A) A book of stories	B) A novel
C) A biography	D) An autobiography

Answer & Explanation Answer: D) An autobiography

Explanation:

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Filed Under: Books and Authors

23 9152

Q:

What is the main reason the OSI Model was created?

Answer

The OSI Model is used as a reference model.

The primary reason the OSI model was created was so that different networks could inter-operate. Hence, different networks could communicate.

Workspace

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Subject: Networking
Job Role: Analyst , Bank Clerk , Database Administration , Network Engineer

20 9144

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
Exam Prep: AIEEE

13 9141

Q:

What is the location of India's first elevated Urban Expressway?

A) Mumbai to Pune	B) Delhi to Gurugram
C) Chennai to Bengaluru	D) Lucknow to Allahabad

Answer & Explanation Answer: B) Delhi to Gurugram

Explanation:

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Filed Under: Indian Geography
Exam Prep: Bank Exams

1 9140

Q:

Missing letters puzzle

Answer

Answer: D

Explanation: The diagram contains 3 sets of 4 letters - one set of outer corner letters, one set of inner corner letters, and one set of letters on each side of the square. The numerical values of the letters in each set add up to 40.

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