General Science - Online Test
Q1. Which one is a heterocrine gland?
Answer : Option A
Explaination / Solution:
Pancreas is called as heterocrine gland because it acts as both endocrine and exocrine gland to secrete hormone as well as digestive enzymes. Testis and Ovary are also heterocrine glands.
Q2. When a fresh water protozoan is placed in marine water
Answer : Option B
Explaination / Solution:
When fresh water protozoan is placed in marine water, the contractile vacuole disappear because the function of vacuole is to expel out excess water but in case of marine water, the water should be retained instead of getting expelled. If the contractile vacuole will not disappear the cell will get dehydrated.
Q3. Ethyl benzene CANNOT be prepared by ______
Answer : Option C
Explaination / Solution:
Wurtz reaction is used to prepare alkanes with even number of carbon atoms.To prepare ethylbenzene,Wurtz Fittig reaction has to be used.
Q4. Which of the following is Paramagnetic?
Answer : Option D
Explaination / Solution:
NO is paramagnetic. Its unpaired electron is present in antibonding orbital.
Q5. There are three industries which are reserved for the public sector except
Answer : Option D
Explaination / Solution:
Under the Reform policies introduced in and after 1991, only 3 industries were kept reserved for the public sector, i.e., defence equipments, atomic energy generation and railway transport.
Q6. Fixed exchange rate is
Answer : Option D
Explaination / Solution:
A fixed exchange rate is a country's exchange rate regime under which the government or Central bank ties the official exchange rate to another country's currency or to the price of gold. The purpose of a fixed exchange rate system is to maintain a country's currency value within a very narrow band.
Q7. Calculate the standard deviation from the following data.14, 22, 9, 15, 20, 17, 12, 11
Answer : Option D
Explaination / Solution:
No Explaination.
Q8. Rupture and fractionalization of water column present in treachery elements does not occur during ascent of sap due to
Answer : Option A
Explaination / Solution:
Cohesion and adhesion between wall of tracheid and water molecule prevent rupture and fractionalization of water column present in treachery elements during ascent of sap.
Q9. PLF is lowest in
Answer : Option C
Explaination / Solution:
Lowest in Eastern Region(62%) Highest in Southern Region(81%) SEB (65%) Central & Pvt. (79%) ... Partnership in excellence - 26 Thermal Station (PLF-60%)
Q10. The process by which impurity is introduced in semiconductors to enhance its conductivity is known as
Answer : Option D
Explaination / Solution:
Semiconductors are doped with impurities to enhance conductivity.
