Questions

Q:

For accurate scientific work, temperatures are often measured by

A) mercury thermometers B) alcohol thermometers
C) platinum resistance thermometers D) thermoelectric thermometers
 
Answer & Explanation Answer: C) platinum resistance thermometers

Explanation:

The resistance of metallic conductors e.g, platinum, increases with rise of  temperature . The increase in temperature results in a decrease of current which can be recorded in a galvanometer if the conductor is included in an electrical circuit. Thus the temperature can be known; platinum resistance thermometer is used generally for accurate scientific work. When two dissimilar metals are joined at the ends, and these ends are subjected to a difference of temperature, a current flows through the metals. Greater the difference of temperature , greater the current. So the curent strength can form the basis for measuring the difference in temperature. And when one of these temperatures is known, we can calculate the other.

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Filed Under: Physics

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Q:

The crop that has the highest photosynthetic activity -

A) Sugarcane B) Wheat
C) Cotton D) Rice
 
Answer & Explanation Answer: A) Sugarcane

Explanation:

Corn, sugar cane, and sorghum are C4 plants. These plants are economically important in part because of their relatively high photosynthetic efficiencies compared to many other crops.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams
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15 4323
Q:

Who discovered the monomers of nucleic acids?

A) James Watson, Francis Crick, and Rosalind Franklin B) Friedrich Miescher
C) Phoebus Levene D) Gerardus Johannes Mulder and Jöns Jacob Berxelius
 
Answer & Explanation Answer: C) Phoebus Levene

Explanation:

Deoxyribonucleic acid (DNA) is a nucleic acid polymer composed of monomers called nucleotides. Nucleotides are composed of three components: (1) a pentose sugar; (2) a nitrogenous base; and (3) one to three phosphate groups.

Phoebus Levene, a Russian biochemist was the first to discover the nucleotide and the first to correctly identify the way nucleic acid molecules, DNA.

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Filed Under: Biology
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Q:

4 mat-weavers can weave 4 mats in 4 days. At the same rate, how many mats would be woven by 8 mat-weavers in 8 days?

A) 4 B) 8
C) 12 D) 16
 
Answer & Explanation Answer: D) 16

Explanation:

Let the required number of bottles be x.

 

 

 

More weavers, More mats (Direct Proportion)

 

 

 

More days, More mats (Direct Proportion)

 

 

 

Wavers   4:8Days       4:8  :: 4:x

 

 

 

 4 x 4 x x = 8 x 8 x 4

 

 

 

=> x= 8*8*44*4

 

 

 

=>  x = 16.

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Q:

Dianna deposits $725 into a savings account that pays 2.3% simple annual interest. How much interest will Dianna earn after 18 months?

A) 23.01 B) 24.01
C) 25.01 D) 26.01
 
Answer & Explanation Answer: C) 25.01

Explanation:

I = Prt

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Q:

Identify the Indian state which has the lowest sex ratio

A) Haryana B) Punjab
C) Uttar Pradesh D) Arunachal Pradesh
 
Answer & Explanation Answer: A) Haryana

Explanation:
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Filed Under: Indian Economy

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Q:

Which among the following body regulates Mutual Funds in India?

A) SEBI B) RBI
C) AMFI D) NABARD
 
Answer & Explanation Answer: A) SEBI

Explanation:

Mutual Funds in India are regulated by the body SEBI - Securities and Exchange Board of India. It was founded in 1992. In 1996, SEBI formulated the Mutual Fund Regulation.

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Filed Under: General Awareness
Exam Prep: AIEEE , Bank Exams , CAT
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4 4319
Q:

Chinese writers mention India by the name of

A) Yin-tu B) Si-Yu-Ki
C) Sikia-Pono D) Fo-Kwo-Ki
 
Answer & Explanation Answer: A) Yin-tu

Explanation:

The Chinese writers mention India by the name of "Yin-tu".

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