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Q:

Deficiency of fluoride leads to Which one of the following health problems?

A) Tooth caries B) Mottling of tooth
C) Bending of bones D) Stiffening of joints
 
Answer & Explanation Answer: A) Tooth caries

Explanation:

Fluoride deficiency is a disorder which may cause increased dental caries due to a lack of fluoride in the diet. Dental caries or tooth decay is the breakdown of dental tissues by the acidic products released by the "bacterial fermentation of dietary carbohydrates”

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Filed Under: Biology
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Q:

What has wheels and flies, but is not an aircraft?

Answer

A Garbage Truck has wheels to move and flies like insects houseflies, mosquitoes in the garbage it is carrying. Hence, it is not an aircraft.

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Subject: Word Puzzles Exam Prep: GATE , CAT , Bank Exams , AIEEE
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Q:

A body of 4.0 kg is lying at rest. Under the action of a constant force, it gains a speed of 5 m/s. The work done by the force will be____.

A) 50J B) 30J
C) 20J D) 40J
 
Answer & Explanation Answer: A) 50J

Explanation:
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Filed Under: Physics
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Q:

In spherical polar coordinates (l, q, a), q denotesthe polar angle around z-axis and a denotes the azimuthal angle raised from x-axis . Then the y-component of P is given by

A) Psinq sina B) Psinq cosa
C) Pcosq sina D) Pcosq cosa
 
Answer & Explanation Answer: A) Psinq sina

Explanation:

The Cartesian Coordinates can be retrieved from spherical coordinates (l,q,a) by:

X = r.sinq.cosa

Y = r.sinq.sina

Z = r.sinq

Using the same we get for P,

Y = P.sinq.sina

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Filed Under: Physics
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Q:

"Sirius", the brightest star outside solar system, is also called ______.

A) Cat star B) Dog star
C) Fox star D) Lion star
 
Answer & Explanation Answer: B) Dog star

Explanation:
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Filed Under: General Science
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Q:

An object having the capability to do work is said to possess

A) Inertia B) Force
C) Pressure D) Energy
 
Answer & Explanation Answer: D) Energy

Explanation:
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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

Improve the bracketed part of the sentence.
Neha (would be looked) beautiful in Indian attire.

A) had looking B) was looked
C) would look D) No improvement
 
Answer & Explanation Answer: C) would look

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

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Q:

The renal medulla is composed of tissue called

A) Renal Sinus B) Renal Pyramids
C) Vasa Recta D) Renal Pelvis
 
Answer & Explanation Answer: B) Renal Pyramids

Explanation:

The renal medulla is composed of tissue called Renal Pyramids.

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Filed Under: Biology
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