General Science - Online Test
Q1. In mountainous regions, streams can be found almost everywhere. A large percentage of such streams are perennial. Which plants use the energy of such streams to move small turbines
Answer : Option C
Explaination / Solution:
No Explaination.
Q2. The region of t-RNA which consists of three bases complementary to a mRNA codon is
Answer : Option B
Explaination / Solution:
An anticodon is a unit made up of three nucleotides that correspond to the three bases of the codon on the mRNA. Each tRNA contains a distinct anticodon triplet sequence that can base-pair to one or more codons for an amino acid.
Q3. Mr Iyer takes a grinder rated 220 V 50 Hz to the U.S where supply is 110 60 Hz . He needs to use a
Answer : Option A
Explaination / Solution:
, hence it is a step up transformer.
Q4. Mobility is defined as
Answer : Option D
Explaination / Solution:
Mobility is defined as the drift velocity acquired by the charge per unit electric field strength. Faster the particle moves in a given electric field strength greater is the mobility.
Q5. Two pendulums of length I meter and 16 meters start vibrating one behind the other from the same stand. At some instant the two are in the mean position in the same phase. The time period of shorter pendulum is T. The minimum time after which the two threads of the pendulums will be one behind the other is
Answer : Option C
Explaination / Solution:
No Explaination.
Q6.
Why does H+ ion always get associated with other atoms or molecules?
Answer : Option D
Explaination / Solution:
Loss of an electron from hydrogen atom results in a nucleus of very small size as compared to other atoms or ions.
H+ ion has exceptionally small size, so it can not exist freely.
Q7. Agricultural practices of breeding and raising live stock is called
Answer : Option B
Explaination / Solution:
Animal husbandry is the agricultural practice of breeding, feeding and raring of livestock to obtain animals products like milk, eggs etc.
Q8. A viewing screen is separated from a double-slit source by 1.2 m. The distance between the two slits is 0.030 mm. The second-order bright fringe m =2 is 4.5 cm from the center line. Wavelength of the light is
Answer : Option A
Explaination / Solution:
No Explaination.
Q9. permeability of a paramagnetic material is expected to decrease with increasing temperature because
Answer : Option B
Explaination / Solution:
No Explaination.
Q10. UNESCO launched biosphere reserve programme under its MAB in :
Answer : Option A
Explaination / Solution:
Launched in 1971, UNESCO's Man and the Biosphere Programme (MAB) is an intergovernmental scientific programme that aims to establish a scientific basis for the improvement of relationships between people and their environment and to protects the endangered species in natural habitat.
