Daily Questions Challenge for IAS PRE (CSAT) Exam (3 June 2015)

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1. Biomass gasification is considered to be one of the sustainable solutions to the power crisis in India. In this context, which of the following statements is/are correct?

1. Coconut shells, groundnut shells and rice husk can be used in biomass gasification.
2. The combustible gases generated from biomass gasification consist of hydrogen and carbon dioxide only.
3. The combustible gases generated from biomass gasification can be used for direct heat generation but not in internal combustion engines.

Select the correct answer using the codes given below :

(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

2. What is the role of ultraviolet (UV) radiation in the water purification systems?

1. It inactivates /kills the harmful microorganisms in water.
2. It removes all the undesirable odours from the water.
3. It quickens the sedimentation of solid particles, removes turbidity and improves the clarity of water.

Which of the statements given above is/are correct?

(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

3. Graphene is frequently in news recently. What is its importance?

1. It is a two-dimensional material and has good electrical conductivity.
2. It is one of the thinnest but strongest materials tested so far.
3. It is entirely made of silicon and has high optical transparency.
4. It can be used as ‘conducting electrodes’ required for touch screens, LCDs and organic LEDs.

Which of the statements given above are correct?

(a) 1 and 2 only
(b) 3 and 4 only
(c) 1, 2 and 4 only
(d) 1, 2, 3 and 4

4. Lead, ingested or inhaled, is a health hazard. After the addition of lead to petrol has been banned, what still are the sources of lead poisoning?

1. Smelting units
2. Pens and pencils
3. Paints
4. Hair oils and cosmetics

Select the correct answer using the codes given below :

(a) 1, 2 and 3 only
(b) 1 and 3 only
(c) 2 and 4 only
(d) 1, 2, 3 and 4

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:: CSAT (Paper -2) ::

P, Q, R, S, T and U are 6 friends, among them there are 2 married couples (and rest unmarried) and pursue 6 different professions. ie, advocate, medico, teacher, editor, counsellor and housewife.

1.

(1) S is the housewife and is married to the medico.
(2) R is an editor.
(3) P, who is married to the teacher, is an advocate.
(4) Q is not the teacher and T is unmarried.

How many female members are there in the group?

a) 2
b) 1
c) 3
d) Can’t be determined

2.

(1) S is the housewife and is married to the medico.
(2) R is an editor.
(3) P, who is married to the teacher, is an advocate.
(4) Q is not the teacher and T is unmarried.

Who among the following is the teacher ?

a) T
b) U
c) Q
d) None of these

3.

(1) S is the housewife and is married to the medico.
(2) R is an editor.
(3) P, who is married to the teacher, is an advocate.
(4) Q is not the teacher and T is unmarried.

What is the profession of T ?

(a) Medico
(b) Teacher
(c) Counsellor
(d) None of these

4.

(1) S is the housewife and is married to the medico.
(2) R is an editor.
(3) P, who is married to the teacher, is an advocate.
(4) Q is not the teacher and T is unmarried.

Who among the following are the unmarried members of the group ?

(a) T and R
(b) U and R
(c) T and U
(d) None of these

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