Q. Which one of the following is the major constituent of biogas?
1) Carbon dioxide
2) Nitrous oxide
3) Methane
4) Oxygen
Q. Which one of the following represents the correct order of electron releasing tendency of metals?
1) Zn>Cu>Ag
2) Ag>Cu>Zn
3) Cu>Zn>Ag
4) Cu>Ag>Zn
Q. Which one of the following is not a monatomic element?
1) Copper
2) Helium
3) Iodine
4) Barium
Q. A very large volume of hydrogen can be accommodated by making -
1) non-metallic hydrides
2) hydrogen peroxide
3) non-stoichiometric hydrides
4) alkali metal hydrides
Q. Which one of the following statements regarding cathode rays is not correct?
1) Cathode ray particles are electrons
2) Cathode ray particles start from anode and move towards cathode
3) In the absence of electrical and magnetic fields, cathode rays travel in straight lines
4) Television picture tubes are cathode ray tubes
Q. Light rays move in straight lines. But through an optional fiber, they can move in any type of zigzag path because -
1) the holes through the fiber are extremely fine
2) light rays are absorbed at the entry end and relieved at the exit end of the fiber
3) scattering of light occurs inside the fiber
4) successive total internal reflections occur as a ray moves through the fiber
Q. Water is heated with a coil of resistance R connected to domestic supply. The rise of temperature of water will depend on -
1. Supply voltage.
2. Current passing through the coil.
3. Time for which voltage is supplied.
Select the correct answer from among the following -
1) 1, 2 and 3
2) 1 and 2 only
3) 1 only
4) 2 and 3 only
Q. The loudness of sound depends upon the -
1) velocity of sound waves in the medium
2) amplitude of the sound waves
3) frequency of the sound waves
4) frequency and velocity of the sound waves
Q. Who among the following popularized the use of embryological characters in taxonomy?
1) Carl Linnaeus
2) Panchanan Maheshwari
3) Birbal Sahni
4) Bentham and Hooker
Q. Which one of the following statements is correct?
1) Xylem consists of tracheid's, vessels, xylem parenchyma and xylem fibers
2) Flexibility in plants is due to sclerenchyma
3) Parenchyma have no intercellular spaces
4) Xylem consists of sieve plate, sieve tube and companion cells
Interior design is a fun and creative field. It mixes art and practicality to make spaces look good and work well. With more people wanting great places to live and work, the need for skilled interior designers is rising. Let’s look at what it takes to have a career in interior design, including nee →
Foundation Date: December 8, 1991 Headquarters: The Republic of Belarus Executive Secretaries: Sergei Lebedev Member Countries: 12 Commonwealth of Independent States (CIS) was established on December 8, 1991, and the leaders of the Republic of Belarus, the Russian Federation, and Ukraine signed an a →
In 2009, an unknown programmer by the name of Satoshi Nakamoto put forward a whitepaper that proposed a creation of new form of digital currency - cryptocurrency. Cryptocurrency functions the same way as regular currencies do in that its used as a means of exchange, unit of account and a store of va →
Headquarter: New Delhi Function and Objective of the Organization: The Food Safety and Standards Authority of India (FSSAI)has been established under Food Safety and Standards Act, 2006 which consolidates various acts & orders that have hitherto handled food-related issues in various Ministries →
If you contribute your content to our site. Please mail us your content to editor@onlinegk.net