Why are cloudy nights warmer than clear nights? 

(A) Moisture in the air entraps moonlight. 

(B) The clouds do not allow the heat radiating from the earth to escape. 

(C) The clouds result in heavy rainfall at night. 

(D) None of these 

Which of the following pairs of state and multipurpose project in India is wrong? 

(A) Hirakud – Orissa 

(B) Tungabhadra – Karnataka 

(C) Gandak – Bihar, UP 

(D) Farakka – Assam 

In a regular polygon if one of its internal angle is greater than the external angle by $132°$, then the number of sides of the polygon is:

(A) $14$ 

(B) $12$

(C) $15$ 

(D) $16$

Charak, known as the king of physicians of 1st century AD, lived during the reign of _____.

The author of 'Arthashastra’ was contemporary of 

(A) Ashoka 

(B) Chandragupta Maurya 

(C) Kanishka 

(D) None of these 

A man buys cycle for Rs. $1400$ and sells it at the loss of $20\%$. What is the selling price of the cycle? 

$$\begin{gathered} \left(A\right) Rs. 1090 \\ \left(B\right) Rs. 1160 \\ \left(C\right) Rs. 1202 \\ \left(D\right) Rs. 1120 \end{gathered}$$

Devaluation of a currency means 

(A) Reduction in the value of a currency vis–a–vis major Internationally traded currencies. 

(B) Permitting the currency to seek it’s worth in the international market.

(C) Fixing the value of the currency in conjunction with the movement in the value of a basket of predetermined currencies. 

(D) None of these

Which year was Bombay transferred to East India Company by Charles II? 

(A) $1662$ AD 

(B) $1664$ AD 

(C) $1663$ AD 

(D) $1668$ AD

Which among the following fractions is the biggest?

(A) $\frac{13}{16}$  

(B) $\frac{31}{40}$   

(C) $\frac{63}{80}$ 

(D)  $\frac{7}{8}$