Insights Secure PRELIMS, 31 July 2014

Assertion (A) :

Activated charcoal is used for decolourising sugar solution.

Reason (R) :

Activated charcoal adsorbs the impurities on its surface.

Which of the following is a block mountain ?

Sodium vapour lamps are preferred to incandescent lamps because of

Punjab and Haryana receive most of their rainfall from

Brahmaputra is an example of _______ drainage.

On whose recommendations was the Constituent Assembly formed ?

Birds get thrust (forward motion) and lift (upward motion) from the

Match the following :

There are 5 bus stops A, B, C, D and E at equal intervals. C is not the middle stop. A and E are not terminal stops. C comes twice as many stops before D in upward journey as B comes after A. D is the first stop in downward journey. Give the correct sequence of the stops in downward journey.

Who among the following was a revolutionary who later turned into a yogi and philosopher ?

Stock-farming refers to

The maturity of a river course is recognised by the presence of

The evidence for the rotation of stars comes mainly from the

Which of the following features are associated with the architecture of Tughlaq period? Select the correct answer using the codes given below the features.

1. Sloping walls.

2. Deliberate attempt to combine the principles of the arch, the lintel and the beam in the buildings.

3. Placing the buildings especially the tombs on a high platform.

Assertion (A) :

Unlike photographic film, which can be used only once, video tapes can be reused several times.

Reason (R) :

Photography involves chemical change but video recording is a physical change.

Consider the following statements regarding bones in the human body :

1. They consist of 80% solid matter and 20% water.

2. Solid matter in the bones is made mainly of cartilage.

3. Impregnation of salts including carbonates and phosphates of lime imparts hardness to the bones.

4. In old age, the proportion of lime decreases and bones become brittle and break easily.

Of these statements :

Mycorrhiza is a symbiotic association between

During the Mughal period, under the Zabti system, land revenue was assessed and was required to be paid

When compared to the mammals, birds are less sensitive to temporary deprivation of water, because

Which one of the following plants is effective in reducing water pollution and is also useful for producing biogas?