181. How many times Polar Satellite Launch Vehicles (PSLVs) have been launched till March 2007?
7 times
9 times
10 times
8 times
182. The safest temperature for keeping food fresh in a refrigerator is
4°C
8°C
0°C
10°C
183. IC chips for computers are usually made of
lead
chromium
silicon
gold
184. What is Jarvik-7?
Electronic leg
Pacemaker
Artificial heart
Artificial eye
185. Food gets cooked faster in a pressure cooker because
water starts boiling at a lower temperature due to high pressure
water starts boiling at a higher temperature due to high pressure
water boils only at 100°C but the heat content is higher at high pressure
convection currents are set inside the cooker
186. When T.V. is switched on,
audio and video both start simultaneously
audio is heard immediately but video starts later because video needs some warm-up time
video starts immediately but audio is heard later because sound travels at a lesser speed than light
it depends on the T.V. brand
187. Miniaturisation of the present-day computers has been possible due to the use of
transistors
integrated circuit chips
nano-materials
superconductors
188. Radar is used mainly for
detecting objects by using light waves
reflecting sound waves to detect objects
determining the presence and location of objects with radio waves
tracking rain-bearing clouds
189. Consider the following as objectives of the new Science and Technology Policy, 2003 and state which is/are correctly stated with the help of codes given below: 1. Optimal Utilisation of existing physical and knowledge resources. 2. Development of innovative technologies. 3. Development of systems and technologies for mitigation and management of natural hazards. 4. Management of intellectual property Codes:
1 and 2 only
1, 2 and 3 only
1, 3 and 4 only
All the four
190. The globally programmed ‘Human Genome Project’ deals with
establishment of a society of super-humans
identification of race based on apartheid
genetic improvement of human races
identification and mapping of human genes and gene sequences
191. Which one of the following is the bio-ethically noncontroversial source of stem cells as an alternative to the highly controversial embryonic stem cells?
Bone marrow-derived stem cells
Amniotic fluid-derived stem cells
Blood of foetus
Blood of babies
192. ‘Radioactive dating’ is a technique which can be used to measure
the age of rocks
composition of rocks
colour of rocks
weight of rocks
193. From the list given below, name the T.V. channel which will cover Engineering and Technology subjects:
Vigyan Darshan
Eklavya
Parivartan
Avishkar
194. Match List–I with List–II and select the correct answer from the codes given below the lists: List–I List–II Pollutants Effects A. Carbon monoxide 1. Damage to lever and kidney B. Oxides of nitrogen 2. Cancer C. Soil particles 3. Ailments related to breathing D. Lead 4. Central nervous system Codes: A B C D
2 3 4 1
4 3 2 1
1 2 3 4
3 4 1 2
195. Match List–I with List–II and select the correct answer from the codes given below the lists: List–I List–II A. Stethoscope 1. to measure intensity of light B. Sphygmomanometer 2. to check purity of gold C. Caratometer 3. to hear heart sound D. Lux meter 4. to measure blood pressure Codes: A B C D
1 2 3 4
4 3 2 1
3 4 2 1
2 1 4 3
196. Scientists of Britain have built "Gravity Tractor". Identify the same from the following:
A double storeyed "Jugaad" type tractor trolley to be used in public transport.
A tractor with a mechanism to sweep public roads and is economical to run.
A bullet train run on the principle of earth's gravity with the help of powerful magnets.
A space craft with a mechanism which would check asteroids from hitting the earth.
197. Match List–I with List–II and select the correct answer by using the codes given below the lists: List–I List–II A. EEG 1. Muscle B. ECG 2. Eye C. EOG 3. Brain D. EMG 4. Heart Codes: A B C D
1 2 3 4
3 4 2 1
2 3 4 1
4 3 1 2
198. Which of the following laser types is used in a laser printer?
Dye laser
Semiconductor Laser
Excimer laser
Gas laser
199. Consider the following statements in respect of a jet engine and a rocket: (1) A jet engine uses the surrounding air for its oxygen supply and so is unsuitable for motion in space. (2) A rocket carries its own supply of oxygen in the gas form as fuel. Which of the above statements is/are correct?
(1) only
(2) only
Both (1) and (2)
Neither (1) nor (2)
200. Match List–I with List–II and select the correct answer by using the codes given below the lists: List–I List–II A. LED 1. ‘Bubble boy’ Syndrome B. LCD 2. Bird disease C. SARS 3. Cost-effective light source D. SCID 4. Popular and effective mobile screen Codes: A B C D
2 3 1 4
4 3 2 1
1 2 4 3
3 4 2 1
12 Total Test
360 Total Question
Scientifically designed for PCS
A must have for Civil services aspirant
IAS PCS SCC and others
75 Total Test
2250 Total Question
Scientifically designed for PCS
A must have for Civil services aspirant
IAS PCS SCC and others
69 Total Test
2070 Total Question
Scientifically designed for PCS
A must have for Civil services aspirant
Timer for time management
