General Science - Online Test
Q1. In April 1999 which programme launched
Answer : Option B
Explaination / Solution:
Jawahar Gram Samridhi Yojana (JGSY) is the restructured, streamlined and comprehensive version of the erstwhile Jawahar Rozgar Yojana (JRY). Launched on 1st April 1999, it has been designed to improve the quality of life of the rural poor by providing them additional gainful employment.
Q2. Which plant division is known as amphibians of the plant kingdom?
Answer : Option B
Explaination / Solution:
Bryophytes are also called amphibians of the plant kingdom because these plants can live in soil but are dependent on water for sexual reproduction as they release antherozoids into water where they come in contact with archegonium to produce zygote.
Q3. Lysosomes are produced by
Answer : Option D
Explaination / Solution:
Lysosomes are manufactured and budded into the cytoplasm by the Golgi apparatus with enzymes inside.
The enzymes that are within the lysosome are made in the rough endoplasmic reticulum, which are then delivered to the Golgi apparatus via transport vesicles.
Q4. A person who plan and conduct an empirical investigation independently or with the help of others is called _______.
Answer : Option C
Explaination / Solution:
Investigator is a person who tends to solve a problem by planning, organising ,conducting, analysing , and concluding a survey. He/She can collect the data him/herself depending on the size of the population and the objective of the survey.
Q5. India alone accounts for nearly ____ per cent of the world’s total iron-ore reserves
Answer : Option A
Explaination / Solution:
No Explaination.
Q6. The code AUG stands for
Answer : Option B
Explaination / Solution:
The start codon is the first codon of a messenger RNA (mRNA) transcript translated by a ribosome. The start codon always codes for methionine in eukaryotes and a modified Met (fMet) in prokaryotes. The most common start codon is AUG.
Q7. An electric bulb rated for 500 watts at 100 volts is used in a circuit having 200 volt supply. The resistance R that must be put in series with the bulb so that the bulb draws 500 watts is
Answer : Option C
Explaination / Solution:
The resistance of the bulb RB = V2/P = 1002/500 = 20\Omega 
When connected across a 200V supply with a resistor R in series, the power drawn remains the same. If V1 be the p.d across the bulb,V12 = P {RB} = 500 * 20 = 104;
V1 = 100V, . Therefore the p.d across R =200-100=100 V. Therefore R=RB=20Ω
Q8. A body of mass 5 g is executing simple harmonic motion about a point O with amplitude of 10 cm. Its maximum velocity is 100 cm/s. It’s velocity will be 50 cm/s at a distance (in cm) from O
Answer : Option D
Explaination / Solution:
No Explaination.
Q9. Choose the most appropriate answer amongst the options given below for the statement -
" A solution of a desired concentration is prepared by diluting --------------- ."
Answer : Option D
Explaination / Solution:
Stock solution can best be described as concentrated solution of known accurate concentration that will be used for future laboratory use.
Since large amounts of solutes are used for preparing stock solution a more accurate concentration of it can be achieved quite easily, and as such the chances are slim to get erroneous results of the related experiments..
In addition , stock solutions are generally more stable as compared to working solution since they usually do not suppport bacterial growth.
A multiple working solution can be prepaed by dilution of stock solution using easy calculation and process.
Q10. In the gas phase water is a bent molecule with a bond angle of
Answer : Option B
Explaination / Solution:
Because the two non-bonding pairs remain closer to the oxygen atom, these exert a stronger repulsion against the two covalent bonding pairs, effectively pushing the two hydrogen atoms closer together. The result is a distorted tetrahedral arrangement in which the H—O—H angle is 104.5°
