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- Question
What is the purpose of balancing chemical equations?
Options- A. law of conservation of energy
- B. law of conservation of mass
- C. Both A & B
- D. None of the above
- Correct Answer
- law of conservation of mass
ExplanationThe main purpose of balancing chemical equations is to make the mass of reactants is equal to mass of products obtained after the reaction. Hence, to make law of conservation of mass is purpose of balancing chemica equations.
- 1. The members of the state legislative assemblies are elected for a period of
Options- A. 2 years
- B. 6 years
- C. 5 years
- D. 3 years Discuss
- 2. What are three types of lasers?
Options- A. Gas, metal vapor, rock
- B. Pointer, diode, CD
- C. Diode, inverted, pointer
- D. Gas, solid state, diode Discuss
- 3. William Frederick is credited with the invention of the modern frisbee in the mid 1950's. In 1957 the Wham-O Company bought his idea and the rest is history. They named the toy after William Frisbie who was a ________?
Options- A. Pie maker
- B. Owner of a pizza parlor
- C. Student at Yale
- D. Ceramic plate designer Discuss
- 4. Which is the oldest monuments?
Options- A. Qutub Minar
- B. Ajanta Caves
- C. Khajurah
- D. Taj Mahal Discuss
- 5. Which Intel chip was the first to support a 32-bit bus architecture?
Options- A. 486SI
- B. Pentium
- C. 286
- D. 386DX Discuss
- 6. The percentage of India's total population employed in agriculture is nearly
Options- A. 40%
- B. 50%
- C. 60%
- D. 70% Discuss
- 7. The periods of different eras are further divided into
Options- A. eons
- B. epochs
- C. stages
- D. Any of the above Discuss
- 8. Stars twinkle because
Options- A. the intensity of light emitted by them changes with time
- B. the distance of the stars from the earth changes with time
- C. the refractive index of the different layers of the earth's atmosphere changes continuously, consequently the position of the image of a start changes with time
- D. the light from the star is scattered by the dust particles and air molecules in the earth's atmosphere Discuss
- 9. Who headed the committee on 'computerisation' in Indian Banks(1988)?
Options- A. C. Rangarajan
- B. R.N. Malhotra
- C. S. Venkitramanan
- D. M.Narasimhan Discuss
- 10. On what date was the debut of the first IBM Personal Computer?
Options- A. August 12, 1981
- B. January 21 1979
- C. August 21, 1980
- D. January 12, 1982 Discuss
More questions
Correct Answer: 5 years
Correct Answer: Gas, solid state, diode
Explanation:
The first laser was a solid state laser. Solid state refers to any solid material like a glass rod. Diode lasers are very common because they are used to read compact disks and digital video disks in computers, CD players, and DVD players. Before diode lasers, the most common type of laser may have been the helium-neon laser, in which the active medium is a combination of the two gasses helium and neon.
Correct Answer: Pie maker
Explanation:
Frisbie made a brand of pies that were popular with Yale students in the 1870's. After eating the pies they would throw the pie tins through the air.
Correct Answer: Ajanta Caves
Correct Answer: 386DX
Explanation:
The 386 chip was the first to offer a possible 32- or 64-bit access to data. OS-2 2.x or higher and Windows 95 required at least a 386 CPU while Windows NT 4.x required at least a 486 CPU to run.
Correct Answer: 70%
Correct Answer: stages
Correct Answer: the refractive index of the different layers of the earth's atmosphere changes continuously, consequently the position of the image of a start changes with time
Correct Answer: C. Rangarajan
Correct Answer: August 12, 1981
Explanation:
Before IBM created its personal computer, two types of computer systems, Apple II and CP-M, dominated the microcomputer world. Neither of these systems were PC compatible, or Mac-compatible (the two primary standards in place today). The original IBM PC became a new standard in the microcomputer industry. Since then, hundreds of millions of PC-compatible systems have been sold, as the original PC grew into a large family of computers and peripherals. More software has been written for this computer family than for any other system on the market.
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