Q:

Which of the Following is an Amorphous solid?

A) Quartz Glass(Sio2)	B) Chrome Alum
C) Silicon Carbide(SiC)	D) Graphite

Answer & Explanation Answer: A) Quartz Glass(Sio2)

Explanation:

An amorphous or non-crystalline solid is a solid that lacks the long-range order that is characteristic of a crystal. In Brief, An amorphous solid is any noncrystalline solid in which the atoms and molecules are not organized in a definite lattice pattern. Such solids include glass, plastic, and gel.

Quartz glass (SiO2) is an amorphous solid due to its short range order of constituent particles. Note Quartz is a crystalline solid while quartz glass is an amorphous solid.

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

52 21750

Q:

'Madhubani', a style of folk paintings, is popular in which of the following states in India?

A) Uttar Pradesh	B) Rajasthan
C) Madhya Pradesh	D) Bihar

Answer & Explanation Answer: D) Bihar

Explanation:

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Filed Under: Indian Culture

375 21734

Q:

Explain Belady's Anomaly?

Answer

Also called FIFO anomaly. Usually, on increasing the number of frames allocated to a process virtual memory, the process execution is faster, because fewer page faults occur. Sometimes, the reverse happens, i.e., the execution time increases even when more frames are allocated to the process. This is Belady's Anomaly. This is true for certain page reference patterns.

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Subject: Operating Systems

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Q:

Statement I :

Incised meanders are formed in the mature stage of a river.

Statement II :

Incised meanders are characterized by rejuvenation and upliftment of land.

A) Both the statements are individually true and Statement II is the correct explanation of Statement I	B) Both the statements are individually true but Statement II is not the correct explanation of Statement I
C) Statement I is true but Statement II is false	D) Statement I is false but Statement II is true

Answer & Explanation Answer: D) Statement I is false but Statement II is true

Explanation:

Rejuvenation occurs when the river’s base level falls (i.e. when sea level falls). This can be a consequence of either a fall in the amount of sea water or the land rising. Incised meanders are meanders which are particularly well developed and occur when a river’s base level has fallen giving the river a large amount of vertical erosion power, allowing it to down cut. Hence, 2nd statement is correct.

There are two types of incised meanders, entrenched meanders and ingrown meanders.As they are products of rejuvenation, they are not formed in mature stage of a river

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Filed Under: General Science
Exam Prep: Bank Exams

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Q:

During which decade did the population of India record a negative growth rate

A) 1911 - 21	B) 1921 - 31
C) 1931 - 41	D) 1941 -51

Answer & Explanation Answer: A) 1911 - 21

Explanation:

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Filed Under: Indian Economy

41 21701

Q:

Name the blood cells in which nucleus is absent

A) Lymphocytes	B) Blood Platelets
C) Monocytes	D) Eosinophils

Answer & Explanation Answer: B) Blood Platelets

Explanation:

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Filed Under: Biology

237 21695

Q:

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

In mid-2012 I completed my first massive online open course, or MOOC, the kind widely offered by Coursera, EdX, Udacity and so on in partnership with different educational institutions. It was on clinical trials and ethical practices, offered by Johns Hopkins, on Coursera. This was shortly before the MOOC sensation hit India, and when Coursera, which was founded by two Stanford professors, itself was just a few months old. The MOOC bug had bit me. The course I’d completed was mainly designed for health care professionals who would be involved in actual clinical trials, not college students who had no prior knowledge of that area. I decided to enroll in the course because it was the only biology related course open at the time. However, I did see hope in that sometime in the future I’d be able to get a glimpse of what classes are like in the hallowed halls of major educational institutions around the world. By early 2013, Coursera and EdX had partnered with so many educational institutions and expanded their course offerings to include everything from food and nutrition to Greek mythology to business, that I was spoilt for choice. I spent hours going through course catalogues and poring over course descriptions, almost delirious with excitement at the fact that I was actually going to be able to take classes offered by universities I had only dreamt of attending.

Coursera was founded by professors from which university?

A) Harvard	B) Massachusetts
C) Stanford	D) Oxford

Answer & Explanation Answer: C) Stanford

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

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Q:

Calculate the pressure (in Pa) if a thrust of 1000 N is applied to an area of 5 sq.m.

A) 200	B) 50
C) 100	D) 25

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