Questions

Q:

A wire of copper having length I and area of cross-section A is taken and a current / is flown through it. The power dissipated in the wire is P. If we take an aluminium wire having same dimensions and pass the same current through it, the power dissipated will be

A) P B) < P
C) > P D) 2P
 
Answer & Explanation Answer: C) > P

Explanation:

Aluminum has a resistivity varying from 2.65 to 2.82 × 10−8 Ω m.The resistivity of copper is generally given as: 1.72 x 10-8 Ω.m.So, since resistivity of aluminium is higher than that of copper, so Power dissipated will be greater than P. this is because rest of the factors (l, A and i) are constant.

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Filed Under: Physics
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Q:

Lime mortar is generally made with

A) Hydraulic lime B) Quick lime
C) Fat lime D) Plain lime
 
Answer & Explanation Answer: A) Hydraulic lime

Explanation:

Lime mortar is generally made with Hydraulic lime.

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Filed Under: General Science
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Q:

Claude Bernard first recognized

A) plant stomata opening and closing to maintain homeostasis B) chemical reactions of enzymes
C) separate fluids outside and inside the cell D) feedback loops
 
Answer & Explanation Answer: A) plant stomata opening and closing to maintain homeostasis

Explanation:

Claud_Bernard1533194164.jpg image

 

Claude Bernard was a French physiologist, who first recognised plant stomata opening and closing to maintain homeostasis.

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Q:

Which has the lowest freezing point?

A) Mercury B) Helium
C) Cesium D) Aluminium
 
Answer & Explanation Answer: B) Helium

Explanation:

Helium has the lowest freezing point of all the elements. When coming to metals, mercury has the lowest freezing point of all the metals.

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Filed Under: Chemistry
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Q:

What is EGP?

Answer

It is the protocol the routers in neighboring autonomous systems use to identify the set of networks that can be reached within or via each autonomous system.

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Subject: Networking
Job Role: Network Engineer

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Q:

Dr. BR Ambedkar was elected to Constituent Assembly from which among the following ?

A) Punjab B) Bombay Presidency
C) West Bengal D) United provinces
 
Answer & Explanation Answer: C) West Bengal

Explanation:

Dr. BR Ambedkar was elected to Constituent Assembly from West Bengal.

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Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.


Dyslexia is a perceptual disorder often occurring in persons of normal, or even above average intelligence. The reader is unable to perceive correctly what is on a page. Letters and numbers often appear reversed: "b" seems to be "d","quite" is "quiet" and "from" is "form". The reader tends to leave out letters or words or insert words or letters that are not there. Vowel and consonant sounds may be confused. Many dyslexics are left­handed or able to write with either hand. They often confuse left and right. Learning to speak may also be delayed beyond infancy. The condition seems to be inherited. It may persist into adulthood. However, with early recognition and specialized approaches to teaching reading, most dyslexics can learn to read.

Some researchers believe that latent dyslexia may be aggravated by the way reading is taught. The modern whole­word, or look­and­say, method seems to be more of a hindrance to learning for dyslexics than it is for ordinary pupils. The phonetic method of teaching students to learn letters and sound them out appears to achieve better reading results. The problem of words that cannot be sounded out ­ such as rough, laugh or through ­ is not solved by phonetics. These words must simply be memorized. However, for children with dyslexia the problem can be compounded by the failure of parents or teachers to recognize the condition. This can easily lead to emotional problems for dyslexic children, who cannot understand their failure to keep up with their classmates.


In Dyslexia, letters and figures often appear __________

A) Inverted B) Blurred
C) Reversed D) Clustered
 
Answer & Explanation Answer: C) Reversed

Explanation:
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Filed Under: English
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Q:

Which of the following team has won the 37th and final edition of the Hockey Champions Trophy at Breda, the Netherlands?

A) India B) Australia
C) Brazil D) The Netherlands
 
Answer & Explanation Answer: B) Australia

Explanation:

In the summit clash of the 37th and final edition of the Hockey Champions Trophy at Breda, the Netherlands, India lost to defending champions Australia via penalty shoot-off. The match went into the shoot-off after both the teams were locked at 1-1 in regulation time.

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