General Science - Online Test
Q1. A man in a lift is holding a can filled with water but having a hole in its bottom. When will the drainage of water be maximum?
Answer : Option B
Explaination / Solution:
No Explaination.
Q2. The life span of RBC and WBC are respectively
Answer : Option D
Explaination / Solution:
Red blood cells (RBC) live for 120 days and white blood cells (WBC) live for 90 days. Afterwards they are degraded in spleen.
Q3. Which one is important in nutrient recycle and act as decomposer and mineralisers of the biosphere
Answer : Option A
Explaination / Solution:
Fungi is important in nutrient cycle and acts as decomposer along with bacteria and mininerlisers of the biosphere to regular recycling of nutrients in the biosphere.
Q4. Ozone can be detected by using
Answer : Option A
Explaination / Solution:
Ozone is detected by using Hg.
Q5. Arrange the following hydrogen halides in order of their decreasing reactivity with propene.
Answer : Option B
Explaination / Solution:
As we move from Cl to I,the atomic size increases,bond length increases,bond strength decreases,hence it becomes easier to release halogen and hence the order.I- is the a better leaving group.
Q6. Cohesion-tension theory is related to
Answer : Option D
Explaination / Solution:
The process of movement of water and minerals from roots to leaves in plant through xylem tissues is called ascent of sap. The most accepted theory of ascent of sap is cohesion-tension theory.
Q7. Agreement made between more than two nations regarding exchange of goods and services
Answer : Option B
Explaination / Solution:
Multilateral trade agreements are commerce treaties between more than two nations. The agreements reduce tariffs and make it easier for businesses to import and export.
Q8. In a process, 701 J of heat is absorbed by a system and 394 J of work is done by the system. What is the change in internal energy for the process?
Answer : Option C
Explaination / Solution:
ΔU = q + w (1st law of thermodynamics)
q = +701J (heat is absorbed by system)
w = -394 J (work is done by system)
ΔU = 701- 394
= 307J
Q9. A source of supply of foreign exchange is
Answer : Option C
Explaination / Solution:
When price of a foreign currency rises, domestic goods become relatively cheaper. It induces the foreign country to increase their imports from the domestic country
Q10. Calculate coefficients of M.D from Mean
Answer : Option B
Explaination / Solution:
No Explaination.
