621: Why do you feel chill after having a dip in sea water?
(a) The difference in temperature between sea water and the atmosphere
(b) Evaporation of water from the body
(c) Deposition of salt on the body
(d) None of these
622: The fundamental objective of Panchayati Raj system is to ensure which among the following?
1. People's participation in development
2. Political accountability
3. Democratic decentralization
4. Financial mobilization
Select the correct answer using the code given below.
(a) 1, 2 and 3 only
(b) 2 and 4 only
(c) 1 and 3 only
(d) 1, 2, 3 and 4
623: Consider the following statements :
1. Steam at 100 Degree Celsius and boiling water at 100 Degree Celsius contain same amount of heat.
2. Latent heat of fusion of ice is equal to the latent heat of vaporization of water.
3. In an air-conditioner, heat is extracted from the room-air at the evaporator coils and is rejected out at the condenser coils.
Which of these statements is/are correct?
(a) 1 and 2
(b) 2 and 3
(c) Only 2
(d) Only 3
624: Consider the following statements :
I. Maharashtra has the highest acreage under jawar in India.
II. Gujarat is the largest producer of groundnut in India.
III. Rajasthan has the largest area of cultivable wastelands in India.
IV. Andhra Pradesh has the highest per hectare yield of maize in India.
Which of these statements are correct ?
(a) I and IV
(b) II and III
(c) I and III
(d) II and IV
625: Consider the following statements :
1. Caffeine, a constituent of tea and coffee is a diuretic.
2. Citric acid is used in soft drinks.
3. Ascorbic acid is essential for the formation of bones and teeth.
4. Citric acid is a good substitution for ascorbic acid in our nutrition.
Which of the statements given above are correct ?
(a) 1 and 2, only
(b) 1, 2 and 3, only
(c) 3 and 4 only
(d) 1, 2, 3 and 4