Questions

Q:

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.

An ornamented staff carried by rulers on ceremonial occasions as a symbol of sovereignty

A) Spectacle B) Receptacle
C) Sceptre D) Zephyr
 
Answer & Explanation Answer: C) Sceptre

Explanation:
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Q:

A passage is given with 5 questions following it. Read the passage carefully and choose the best answer to each question out of the four alternatives.


I had seen this road many years ago when my parents moved to Mundakotukurussi, our ancestral village. However, in those early years, I hadn't begun exploring the countryside. I stored the unknown road in my head under 'One Day I Will'. Ten years ago, when I recovered from a herniated disc, it was to discover that I had a useless left leg. Though I managed to lose the limp, I hated not being able to stride around as I used to. I needed a challenge to tell myself that I wasn't going to buckle to a creature called sciatica. Thus the 'One Day I Will' arrived. "Where does the road by the medical shop lead to?" I asked my parents while visiting them next. "Chalavara," they said. "It's not an easy road to walk on," my father added. "There are too many ups and downs." Chalavara was a superior grade of a village as compared to Mundakotukurussi, with a high school, a fine library, ATMs and several shops. But it also has two approach roads. The one I had chosen was a narrow back road used by the locals and that settled it for me. I needed to know for myself I could walk a road that wasn't going to be easy. And the next day, I would get up and walk that road again.


What is 'sciatica'?

A) A type of animal B) Name of a real place
C) Name of an imaginary place D) A herniated disc
 
Answer & Explanation Answer: D) A herniated disc

Explanation:
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Q:

The colour of a thin film is due to

A) Scattering B) Dispersion
C) Diffraction D) Interference
 
Answer & Explanation Answer: D) Interference

Explanation:

In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude. The color bands in thin films are a result of wavelength dependent interference caused by the close spacing of the surfaces of the film.

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Q:

Which of the following is a device designed to protect electrical devices from voltage spikes?

A) Voltage unloader B) Surge protector
C) Heat protector D) Current unloader
 
Answer & Explanation Answer: B) Surge protector

Explanation:
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Filed Under: Physics

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Q:

In which of the following animals is can breathe through their skin?

A) Frog B) Shark
C) Whale D) Cockroach
 
Answer & Explanation Answer: A) Frog

Explanation:
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Q:

Appointments for all India Services are made by

A) UPSC B) President
C) Prime Minister D) Parliament
 
Answer & Explanation Answer: B) President

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Filed Under: Indian Politics

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Q:

Which one of the following is the correct relation between the Kelvin temperature (T) and the Celsius temperature (fc)?

A) These are two independent temperature scales B) T = tc
C) T = tc - 273.15  D) T = tc + 273.15 
 
Answer & Explanation Answer: D) T = tc + 273.15 

Explanation:

Lord Kelvin, working in Scotland, developed the Kelvin scale in 1848. His scale uses molecular energy to define the extremes of hot and cold. Absolute zero, or 0 K, corresponds to the point at which molecular energy is at a minimum. The Kelvin scale is preferred in scientific work, although the Celsius scale is also commonly used. Temperatures measured on the Kelvin scale are reported simply as K, not °K.

T (in °C) + 273.15 = T (in K)

T (in K) − 273.15 = T (in °C)

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Filed Under: Chemistry
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Q:

Which element has the lowest ionization energy?

A) He B) Ne
C) Fr D) Rb
 
Answer & Explanation Answer: C) Fr

Explanation:

Ionisation energy is the energy required to remove one mole of electrons from one mole of gaseous atoms. Atoms are more stable when they have full valence shells.


The ionization energy decreases from top to bottom in groups, and increases from left to right across a period.

 

HGence, in this trend Francium (Fr) has the lowest ionization energy.

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