COMPETITIVE EXAMINATION QUESTIONS
COMPUTER:
1. Which virus found by Microsoft that seals personal details to help criminals plunder online bank accounts?
a) Trojan horse b) Nitol c) Seven dust d) TDL-4
2. What is a semantic error?
a) A program error that is difficult to debug.
b) A program error that is not so important to take care.
c) A program error that crashes the program.
d) A program error that gives wrong output.
3. AOL stands for?
a) America Over LAN. b) America On Line. c) Arranged Outer Line. d) Audio Over Line.
4. Which of the following is not a mouse technology?
a) Mechanical b) Optical c) Motorized d) Optical Mechanical
5. Which company delivered the first ever android phone and also the first ever 4G phone?
a) HTC b) Dell c) Intel d) TCS
6. MSIC stands for?
a) Medium Scale Integrated Circuit.
b) Medium System Integrated Circuit
c) Main System Integrated Circuit
d) Main Scale Integrated Circuit
GENERAL SCIENCE :
1. Who has produced for the 1st time the double Helix model of DNA?
Ans. The double helix model of DNA (Deoxyribo-nucleic Acid) was given by James Watson and Francis Crick in 1953.
2. The full form of SIM is?
Ans. The full form is Subscribers Identification Module. It is an Integrated Circuit (IC) that securely stores the International Mobile Subscriber Identity (IMSI) and the related key is used to identify and authenticate subscribers on mobile telephony services such as mobile phones and computers.
3. Laser is a device for producing
Ans. A Laser is a device that emits light (electromagnetic radiations) through a process of optical amplification based on the stimulated emission of photons. The term "Laser" originated as an acronym for Light amplification by stimulated emission of radiation.
4. Silicon Carbide (SIC) is known as
Ans. Silicon Carbide (SIC), also known as Carborundum, is a compound of silicon and carbon. It occurs in nature as an extremely rare mineral moissanite.
5. The quality of Diesel oil for use in diesel engines is determined by the
Ans. Cetane number (CN) is a measurement of the combustion quality of diesel fuel during compression ignition. It is a significant expression of the quality of a diesel fuel.
6. Which gets deficient in the human body due to dengue fever?
Ans. The platelets count decreases rapidly in the dengue fever. The platelets are produced in blood cell formation in bone marrow. It is associated with the growth of the cell.
7. In an earthen pitcher, water remains cold due to the process of
Ans. The earthen pitcher works on the principle of evaporation. The water inside the earthen pitcher gets evaporated through the micro holes present in the earthen pitcher and the water inside remains cool.
8. A polymer which is used for making ropes and carpets fibres, is
Ans. Polypropylene, also known as polypropene, is a thermoplastic polymer used in the wide variety of applications including packaging and labeling textiles, stationary, plastic parts and reusable containers of various types, laboratory equipments, loud speakers and polymer bank notes.
9. Rusting of iron is an
Ans. Rusting of iron consists of the formation of hydrated oxide, Fe(OH)3 or FeO(OH) and is an electrochemical process which requires the presence of water, oxygen and an electrolyte.
10. Sun loving plants are
Ans. Heliophytes or heliophytic plants, also called sun loving plants, are those that require full exposure to the sun for their optimum growth. Examples are coconut, mango, sugarcane and corn, etc.
11. When mild steel is heated to a high temperature and suddenly cooled in water, it becomes brittle. The process is called
Ans. Hardening involves heating steel to its normalizing temperature and cooling (quenching) rapidly in a suitable fluid e.g. oil, water or air.
12. White colour of milk id due to the presence of
Ans. The white colour of milk is due to the presence of casein, it is a protein.
13. To meet its rapidly growing energy demand, some opine that India should pursue research and development on Thorium as the future fuel of nuclear energy. In this context, what advantage Thorium hold over Uranium?
i) Thorium is far more abundant in nature than Uranium.
ii) On the basis of per unit mass of mined mineral, thorium can generate more energy compared to natural uranium.
iii) Thorium produces less harmful waste compared to uranium.
Which of the statement(s) given above is/are correct?
a) Only (i) b) 2 & 3 c) 1 & 3 d) All
Ans. (d) Thorium is about four times more abundant than uranium. Thorium can also produce about eight times more energy per unit mass as compared to uranium. Thorium also produces much lesser radioactive elements because of the nature of its fuel cycle.
14. Consider the following statements
(i) India along with the world's four biggest organizations working towards controlling TB has agreed to provide 145 countries with a new diagnosis test-Genexpert at lower rates.
(ii) About 99000 Indians, suffering from TB are becoming drug resistant every year.
(iii) Every 5th case of TB across the world is from India.
Which of the statement(s) given above is/are correct about TB?
a) 1 & 2 b) 2 & 3 c) 1 & 3 d) All
Ans. (d) Genexpert is a new diagnostic test of tuberculosis in India. India has cleared the proposal to roll out a new diagnostic test 'Genexpert' across sites that will test and confirm MDR TB within 120 minutes. The test will cost only Rs. 500.
· India along with the world's four biggest organizations is working towards controlling TB has agreed to provide 145 countries with Genexpert at lower rates.
· Genexpert has made an international agreement with these international organizations to reduce the price of its test and keep the price same till 2022, under any circumstances.
· About 99000 Indians, suffering from TB are becoming drug-resistant every year.
· Every 5th case of TB across the world is from India.
· In 2009, out of 94 lakh patients of TB across world, 20 lakh were Indians.
· 1000 Indians are dying due to TB every day.
15. Assertion (A) : Humulin is better than conventional insulin.
Reason (R) : Conventional insulin produces many side-effects.
(a) Both Assertion & Reason are true and Reason is correct explanation of Assertion.
(b) Both Assertion & Reason are true but Reason is not the correct explaination of Assertion.
(c) Assertion is true but Reason is false.
(d) Both Assertion & Reason are false.
Ans. (a) Humulin is the 1st genetically engineered pharmaceutical product. It is better than conventional insulin because conventional insulin produces many side-effects over a long period.
16. Consider the following statements
1. Some scientists at BITS-Pilani have developed a new bio-sensor device to detect arsenic content in drinking water.
2. It is a portable device and uses live bacteria instead of expensive chemicals for the test.
Which of the above statement(s) is/are correct?
a) Only 1 b) Only 2 c) Both d) none
Ans. (c) Scientists at the Birla Institute if Technology and Science (BITS) in Pilani have developed a new bio-sensor device to detect arsenic content in drinking water.
The water to be tested is taken in the gadget's cuvette, which contains genetically modified bacteria. Upon reacting with arsenic, the bacteria emit green light that is detected by an electronic sensor.
17. Vultures, which used to be very common in the Indian countryside some years ago, are rarely seen now-a-days. This is attributed to
(a) the destruction of their nesting sites by new invasive species.
(b) a drug used by cattle owners for treating their diseased cattle
(c) Scarcity of food available to them
(d) a widespread, persistent and fatal disease among them
Ans. (b) The Indian vulture and the Indian White-rumped vulture have suffered in Pakistan and India. The cause of this has been identified as poisoning caused by the veterinary drug 'Diclofenac' used by cattle owners for treating their diseased cattle. It causes kidney failure in several species of vultures.
18. In forensic study, DNA fingerprinting process is used to determine whether or not an individual is the parent of a child by
(a) VNTR loci analysis
(b) RFLP analysis
(c) Degenerate oligonucleotides assay
(d) C-DNA analysis
Ans. (a) In 1984, for the 1st time, a British geneticist, Alec Jeffrey working at the university of Leicester developed the technique of DNA fingerprinting.
Unusual sequences of bases of 10-15 base pairs long which is repeated several times and is termed as 'Variable Number of Tandem Repeats' (VNTR's). On the basis of number of repeats present in VNTR's, the length of a segment is measured. In different persons, the length of VNTR differs and therefore, VNTR is the key of DNA fingerprinting.
19. Yellow colour light is used as for light because yellow colour.
(a) light is most scattered by fog
(b) has the longest wavelength among all colours
(c) has the longest wavelength among all colours except red and orange, but the red colour is already used for brake light and stop light whereas orange colour is avoided due to its similarity with red.
(d) has the shortest wavelength among all colours not already reserve for other purposes.
Ans. (c) Yellow colour light is being used as fog light it has the longest wavelength among all colours except red and orange, but the red colour is already used for brake light and stop light whereas orange colour is avoided due to its similarity with red.
Dear sir,
ReplyDeleteThe question are good but where is the answers of these questions?
surendra