General Science - Online Test
Q1. Hole is a vacancy or lack of an electron and can travel through the semiconductor material. It can
Answer : Option C
Explaination / Solution:
Holes and electrons are the two types of charge carriers responsible for current in semiconductor materials.
Holes in a metal or semiconductor crystal lattice can move through the lattice as electrons can, and act similarly to positively-charged particles. They play an important role in the operation of semiconductor devices such as transistors, diodes and integrated circuits. However they are not actually particles, but rather quasiparticles; they are different from the positron, which is the antiparticle of the electron.
Q2. In which of the following types of market structures, are resources, assumed to be mobile?
Answer : Option B
Explaination / Solution:
No Explaination.
Q3. The cross-section of the body of an invertebrate is given below. Identify the animal which has this body plan.
Answer : Option D
Explaination / Solution:
In some animals, the body cavity is not lined by mesoderm, instead, the mesoderm is present as scattered pouches in between the ectoderm and endoderm. Such a body cavity is called pseudocoelom and the animals possessing them are called pseudocoelomates, e.g.,aschelminthes such as round worm.
Q4. Money over comes the problems of barter system. It is
Answer : Option A
Explaination / Solution:
No Explaination.
Q5. Which of the following plant contain unisexual flower
Answer : Option A
Explaination / Solution:
The flower which contains either male or female reproductive part is called unisexual flower. Papaya plant produce either male or female flower in separate plants.
Q6. The bond formed, as a result of the electrostatic attraction between the positive and negative ions was termed as
Answer : Option A
Explaination / Solution:
Chemical bond formed between two atoms due to transfer of electron(s) from one atom to the other. atom is called "Ionic bond" or "electrovalent bond".
in electrovalent bond one atom loses an electron to form a positive ion and the other atom gains the electron to form a negative ion. The resulting ions are held together by electrostatic attraction
Q7. The weights used in Passche’ s formula belong to
Answer : Option D
Explaination / Solution:
Paasche’s Method:
Under this method of calculating Price Index, the quantities of the current year are used as weights as compared to base year quantities used by Laspeyres.
Q8. Head of epididymis is called as
Answer : Option D
Explaination / Solution:
Epididymis is a long narrow coiled tube attached to the surface of the testis in mammals and reptiles. It acts as temporary storage organ of spermatozoa received from seminiferous tubules. The head of it is called caput epididymis.
Q9. Human capital consists of
Answer : Option D
Explaination / Solution:
Human capital includes the inherent and acquired skill sets of the entire population of a country. However, education, health, on-job training enhance the quality of human capital.
Q10. Classification data based on the geographical differences of the data is
Answer : Option C
Explaination / Solution:
Spatial dependence is measured as the existence of statistical dependence in a collection of random variables, each of which is associated with a different geographical location.
