General Science - Online Test
Q1. Infant mortality rate is as low as ___ per thousand in China compared with ___ per thousand in India
Answer : Option B
Explaination / Solution:
The infant mortality rate is the number of deaths of infants under one year old per 1000 live births. This rate is often used as an indicator of the level of health in a country.
Q2. In charging by Induction
Answer : Option B
Explaination / Solution:
If a charged object placed near an uncharge object than redistribution of charge takes place in uncharge object and if we will earthed one surface of uncharged object than one charge goes to earth and other charge spread on its surface and it becomes charged.
Q3. With reference to figure the elastic zone is
Answer : Option B
Explaination / Solution:
No Explaination.
Q4. In Genetic Engineering, to cut DNA at a specific site, the enzyme used is
Answer : Option C
Explaination / Solution:
In genetic engineering, restriction enzymes (or restriction endonucleases) are used to cut DNA into smaller fragments. The cuts are always made at specific nucleotide sequences. Different restriction enzymes recognise and cut different DNA sequences. These fragments are joined together using another enzyme called ligase.
Q5. Vasa recta is absent or reduced in:
Answer : Option B
Explaination / Solution:
The efferent arteriole emerging from the glomerulus forms a fine capillary network around the renal tubule called the peritubular capillaries.
A minute vessel of this network runs parallel to the Henle’s loop forming a ‘U’ shaped vasa recta. Vasa recta is absent or highly reduced in cortical nephrons.
Q6. For solids near room temperature the molar specific heat (R is the universal gas constant)
Answer : Option B
Explaination / Solution:
The molar specific heats of solids also demonstrate a marked temperature dependence. Solids have molar specific heats that generally decrease in a nonlinear manner with decreasing temperature and approach zero as the temperature approaches absolute zero. At high temperatures (usually above 300 K), the molar specific heats approach the value of 3R ≈ 25 J/mol.K, a result known as the DuLong–Petit law.
Q7. Jurassic period of the Mesozoic era characterized by
Answer : Option D
Explaination / Solution:
Jurassic period of Mesozoic era characterized presence of Gymnosperms as dominant plant and first birds evolved from reptiles. Dianasours are also a kind of reptiles.
Q8. Gay Lussac’s law states that at constant volume, pressure of a fixed amount of a gas
Answer : Option A
Explaination / Solution:
P α T (at constant V).
Q9. At a given temperature equilibrium is possible only in a system which is a
Answer : Option D
Explaination / Solution:
Equilibrium is possible only in a closed system at a given temperature for physical processes. When equilibrium is attained for a physical process, it is characterized by constant value of one of its parameters at a given temperature.
Q10. hydrolysis of starchyields
Answer : Option A
Explaination / Solution:
Hydrolysis of starch give glucose.
