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Q:

The fact that two large ships travelling on close parallel courses in the same direction tend to move towards each other can be explained by

A) Bernoulli's principle B) Magnetic properties of the ship's material
C) Newton's third law of motion D) Earth's gravitational force
 
Answer & Explanation Answer: A) Bernoulli's principle

Explanation:

The rapid flow of air between the two moving ships causes a reducton of pressure (Bernoulli's principle) , so they (the ships) are drawn closer together

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Filed Under: Physics

2 3000
Q:

For Gamma radiation, what stops its penetrating abilities?

A) Lead B) Steal
C) Concrete D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

The highly energetic gamma particles can penetrate most compounds that stop by other types of radiation. However, lead, steel, or concrete can reduce the high energy of these particles, making them less penetrating.

 

Hence, Gamma radiation can be stopped by a several inches of lead or steel, or several meters of concrete.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

3 2998
Q:

The spring constant of a spring depends on its

A) length only B) material only
C) length and its diameter D) thickness, its diameter and its material
 
Answer & Explanation Answer: D) thickness, its diameter and its material

Explanation:

In dealing with a coil spring the spring constant will depend on the stiffness of the spring material, the thicknessof the wire from which the spring is wound and, diameterof the turns of the coil, the number of turns per unit length and the overall length of the spring.

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Filed Under: Physics
Exam Prep: Bank Exams

3 2998
Q:

The First Speaker against whom a motion of no-cofidence was moved in the in the Lok Sabha was_______

A) Balram Jhakhar B) G.V. Mavalankar
C) Hukum Singh D) K.S. Hedge
 
Answer & Explanation Answer: B) G.V. Mavalankar

Explanation:
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Filed Under: Indian Politics

1 2998
Q:

The United Nations declared 1990's-2000 as the International Decade for

A) Water for Life Decade B) Bone and Joint Decade
C) Second International Decade for the Eradication of colonialism D) International Decade for Natural Disaster Rreduction
 
Answer & Explanation Answer: D) International Decade for Natural Disaster Rreduction

Explanation:
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Filed Under: Important Days and Years

0 2998
Q:

Who has been elected chair of the International Olympic Committee's ethics commission 2017 ?

A) Ban Ki-moon B) Peter Thomso
C) Antonio Guterres D) Amina J. Mohammed
 
Answer & Explanation Answer: A) Ban Ki-moon

Explanation:
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Filed Under: Sports

14 2998
Q:

What are the aims of the UN Industrial Development Organization

A) Helps developing countries on the issue of fight against marginalization and poverty B) Helps developing countries
C) Mobilizes knowledge, skills, information and technology to promote productive employment, a competitive economy and sound environment D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:
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Filed Under: World Organisations

2 2997
Q:

Infection of salivary glands by a virus leads to 

A) tetanus B) mumps
C) pyorrhoea D) ulcers
 
Answer & Explanation Answer: B) mumps

Explanation:

Mumps: This is a swelling caused by inflammation of parotid glands placed in front of our ear region. The Inflammation is caused by a virus.

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Filed Under: Biology

2 2997