50. Real wage is :

(A) Profit/Price Level

(B) Rent/Price Level

(C) Interest/Price level

(D) Money Wage/Price Level

Ans. (D) Money Wage/Price Level

The term real wages refers to wages that have been adjusted for inflation. This term is used in contrast to nominal wages or unadjusted wages. Real wages provide a clearer representation of an individual's wages. 

Real Wage = Nominal Wages (Money Wages)/Price Index (Price Level)

49. All the ecosystems taken together in a geographical area form a bigger unit called :

(A) biosphere

(B) territory

(C) biome

(D) community

Ans. (C) Biosphere

ll ecosystems taken together make up the biosphere, all living organisms on the earth and their physical environment. The biosphere differs from other ecosystems in having fixed boundaries. The biosphere covers the whole surface of the earth. It begins underground and extends into the highest reaches of the atmosphere.

Source : biologyreference.com

48. In which state Jog falls located :

(A) Kerala
(B) Maharashtra
(C) Karnataka
(D) Tamilnadu

Ans. (C) Karnataka

Jog Falls is the second-highest plunge waterfall in India, Located near Sagara, Karnataka. It is also called Gerusoppe falls, Gersoppa Falls or Jogada Gundi.

47. The only plant cells without nuclei among the following are :

(A) Cambium Cells
(B) Root Hairs
(C) Companion Cells
(D) Tracheid Cells

Ans. Trecheid Cells have no nuclei. Trecheids are dead at maturity so no nucleus.

46. The Spice-Garden of India is :

(A) Himachal Pradesh
(B) Karnataka
(C) Kerala
(D) Assam

Ans. (C) Kerala

Kerala is known as "Spice-Garden of India".

45. For which of the following substances, the resistance decreases with increase in temperature?

(A) Pure Silicon
(B) Copper
(C) Nichrome
(D) Platinum

Ans. (A) Pure Silicon

Explanation 1: 

1) In semiconductors free electrons available for conduction are very less, hence when temp increases valence electrons jumps into upper energy layer & becomes free electrons, hence conductivity increases , hence resistance decreases.

2) In metals there are already many free electrons, which is called 'ocean' of electrons, but when temp increases atoms i.e. their crystal structures starts vibrating( this phenomenon is difficult to understand bcoz its quantum physics phenomena) which obstructs free electrons, hence resistance decreases. But still resistance increased in metals at any particular temp is far far less than that of decreased resistance in semiconductors. 

Explanation 2:

1) Conduction takes place through free electrons of high energy. Other electrons are in the valence band with lower energy. In a semiconductor this energy gap is low enough such that at higher temperatures more electrons leave the valence band and move into the conduction band and leave behind a hole in the valence band. Hence conductivity dramatically improves. (The hole in the valence band also conducts as a positive charge)

2) A metal has large number of free electrons which frequently collide with atoms which hinder its random motion. At high temperatures there are higher random velocities with larger number of collisions which hinder free movement. Hence its resistance increases 

 

Source: Yahoo! Answers - 1. mansudtein; 2. ramesh_1960

44. Who is the Presiding Officer of the Rajya Sabha?

(A) Vice - President of India
(B) President of India
(C) Speaker of Lok Sabha
(D) Prime Minister of India

Ans. (A) Vice - President of India

Chairman and Deputy Chairman are the Presiding Officers of Rajya Sabha. Vice - President of India is the Ex-officio Chairman of Rajya Sabha. Hence Vice - President of India is the Presiding Officer. Currently, Chairman of Rajya Sabha is Mr.Mohammad Hamid Ansari [since 11th August 2007]

43. Who was the first Muslim President of Indian National Congress?

(A) Badruddin Tyabji

(B) Moulana Abul Kalam Azad

(C) Hassan imam

(D) M.A. Ansari

Ans. (A) Badruddin Tyabji

Badruddin Tyabji was the first muslim president of Indian National Congress elected in its 1887 Madras session.

List of Muslims who became president of The Indian National Congress before Independence of India :

1. Badruddin Tyabji became President in 1887 INC Session - Madras

2. Rahimtulla M. Sayani became President in 1896 INC Session - Calcutta

3. Nawab Syed Muhammad Bahadur became President in 1913 INC Session - Karachi

4. Syed Hasan Imam became President in 1918 INC Special Session - Bombay

5. Hakim Ajmal Khan became President in 1921 INC Session - Ahamedabad

6. Maulana Mohammad Ali became President in 1923 INC Session - Cocanada (now Kakinada)

7. Maulana Abul Kalam Azad became President in 1923 INC Special Session - Delhi

**(Maulana Abul Kalam Azad again become President of The Indian National Congress in 1940 - INC Session - Ramgarh and he was the President of Indian National Congress until 1946, he was the only person who served as president of INC for 7 years (the longest period) before Independence.)**

8. Dr. Mukhtar Ahmed Ansari became President in 1927 INC Session - Madras

42. Environmental pollution can be controlled by :

(A) Checking Atomic Blasts
(B) Manufacturing Electrical Vehicles
(C) Sewage Treatments
(D) All of the above

Ans. (D) All of the above

41. "Tidal Forest" is otherwise called as :

(A) Evergreen Forest
(B) Monsoon Forest
(C) Mangrove Forest
(D) Coniferous Forest

Ans. (C) Mangrove Forest

Tidal Forests are otherwise called Mangrove Forest. Mangroves are various kinds of trees up to medium height and shrubs that grow in saline coastal sediment habitats in the tropics and subtropics – mainly between latitudes 25° N and 25° S. The remaining mangrove forest areas of the world in 2000 was 53,190 square miles (137,760 km²) spanning 118 countries and territories.

In India mangroves occur in its coastal areas :

40. The rate at which scanning is repeated in a CRT is called :

(A) refresh rate
(B) resolution
(C) pitch
(D) bandwidth

Ans. (A) Refresh Rate

The Refresh rate is the number of times a display's image is repainted or refreshed per second. As it denotes a frequency of a process, the refresh rate is expressed in hertz. That is, a refresh rate of 75 Hz means the image is refreshed 75 times in one second.

In Cathode Ray Tubes (CRTs), the refresh rate is regulated by the vertical synchronous signal produced by the video controller, which directs the monitor to focus the electron gun on the leftmost top edge of the raster, ready to paint the image. The refresh rate depends upon the monitor's resolution and its maximum horizontal scan rate, as higher resolution necessitates more scan lines per second. Increased refresh rates reduce flickering and thereby reduce eye strain for a viewer. Because of this, it is advisable to purchase monitors that have a flicker rate between 75 and 85 Hz.

39. Pick the odd one out :

(A) Java Clients
(B) Worms
(C) Trojan Horse
(D) Virus

Ans. (A) Java Clients

38. Who made history by winning 8 gold medals in the Beijing Olympics in one event?

(A) Van Lee Chu of China
(B) Marcus Michael of France
(C) Michael Phelps of U.K.
(D) Ian Kraken of U.S.A.

Ans. (C) Michael Phelps of U.K.

In winning eight gold medals at the 2008 Beijing Games, Phelps took the record for the most first-place finishes at any single Olympic Games.

37. Substance which are used to bring down the temperature in high fever condition are called :

(A) Antiseptics

(B) Pyretics

(C) Antipyretics

(D) Antibiotics

Ans. (C) Antipyretics

An antipyretic is a type of medication that prevents or reduces fever by lowering body temperature from a raised state.

36. Which of the following is the Third Largest Country in population after China & India :

(A) Bangladesh

(B) United States of America

(C) Indonesia

(D) Japan

Ans. (B) United States of America

Top 10 Most Populated Countries of World :

Rank	Country	Population	Date	% of world population
1	China	1,347,350,000	December 31, 2011	19.11%
2	India	1,210,193,422	March 1, 2011	17.17%
3	United States	314,674,000	October 30, 2012	4.46%
4	Indonesia	237,641,326	May 1, 2010	3.37%
5	Brazil	193,946,886	July 1, 2012	2.75%
6	Pakistan	181,082,000	October 30, 2012	2.57%
7	Nigeria	166,629,000	July 1, 2012	2.36%
8	Bangladesh	152,518,015	July 16, 2012	2.16%
9	Russia	143,228,300	September 1, 2012	2.03%
10	Japan	127,520,000	September 1, 2012	1.81%

35. The function of sedimentation tank in sewage treatment is to :

(A) Disinfect the sewage
(B) Remove water content
(C) Aerate the sewage
(D) Remove suspended solids

Ans. (D) Remove suspended solids

Sedimentation is a physical water treatment process using gravity to remove suspended solids from water.

34. Consumer's surplus is the highest in the case of :

(A) durable goods
(B) luxuries
(C) comforts
(D) necessities

Ans. (D) Necessities

Consumer Surplus is defined as the difference between the price a customer willing to pay for a product and the price that he actually ends up paying. When a consumer gets to purchase a good at a lower price than the price he is willing to pay, he gets more benefits creating a consumer surplus. As an example, for a necessity like food consumer would be willing to pay a higher price as it is a necessity. But at normal market conditions consumer can obtain food at a relatively lower price than what he is willing to pay and it creates a consumer surplus. When the utility (satisfaction) of a good falls the consumer surplus reduces as the consumer will not be willing to pay higher price.

33. Substance used as an anti-freeze in radiators of automobiles is :

(A) Methyl Alcohol & H2O
(B) Methyl Alcohol
(C) Ethyl Alcohol
(D) Ethyl Alcohol & H2O

Ans. (D) Ethyle Alcohol & H2O (Actually its Ethlyne Alcohol or Ethylene Glycol....didn't get the option)

Antifreeze is added to radiator to keeps your radiator fluid from freezing when it is very cold and keeps your car from overheating on very hot days. Antifreeze is commonly ethylene glycol and is designed to lower the freezing point and to raise the boiling point of the radiator fluids.

The trouble with water is that it freezes or boils at extreme temperatures. Anti-freeze ( ethylene glycol) can withstand much greater temperature extremes, so by adding it to water in a 50/50 mix we make a compromise. We retain most of the good ccooling ability of water but also get some some of the ability to withstand extreme temps from the anti-freeze.

32. Which of the following is a good conductor of heat but bad conductor of electricity?

(A) Mica
(B) Asbestos
(C) Celluloid
(D) Paraffin wax

Ans. (A) Mica

Mica is a good conductor of heat but a bad conductor of electricity.

31. Flowerless plants are termed as :

(A) Phanerogams
(B) Bryophytes
(C) Thallophytes
(D) Cryptogams

Ans. (D) Cryptogams

Plants which have no true flowers, and produce no seeds; cryptogamous plants.