General Science - Online Test
Q1. An uncharged sphere of metal is placed inside a charged parallel plate capacitor. The lines of force look like
Answer : Option C
Explaination / Solution:
Electric lines of force never intersect the conductor. They are perpendicular and slightly curved near the surface of conductor.so answer is A
Q2.
A steel rod 2.0 m long has a cross-sectional area of 0.30 . It is hung by one end from a support, and a 550-kg milling machine is hung from its other end. Determine the stress on the rod.
Answer : Option C
Explaination / Solution:
No Explaination.
Q3. Helium is used in Biolistic gun as
Answer : Option A
Explaination / Solution:
Biolistic gun is used to insert the foreign DNA into the target organism. The gene gun is utilized to bombard the plant cell wall with many DNA coated metal particles by using compressed helium as the propellant.
Q4. Read the following about renal threshold :
i. The renal threshold of glucose is 180 mg/100ml of blood.
ii. If blood level of glucose exceeds 180mg, it leads to diabetes insipidus.
iii. If blood level of glucose exceeds 180mg, it leads to diabetes mellitus.
i. The renal threshold of glucose is 180 mg/100ml of blood.
ii. If blood level of glucose exceeds 180mg, it leads to diabetes insipidus.
iii. If blood level of glucose exceeds 180mg, it leads to diabetes mellitus.
Answer : Option D
Explaination / Solution:
The renal threshold is the state when glucose is present in urine. The renal threshold of glucose is 180 mg/100 ml of blood. If blood glucose level exceeds 180 mg, it leads to diabetes insipidus.
Q5. In changing the state of a gas adiabatically from an equilibrium state A to another equilibrium state B, an amount of work equal to 22.3 J is done on the system. If the gas is taken from state A to B via a process in which the net heat absorbed by the system is 9.35 cal, how much is the net work done by the system in the latter case?
Answer : Option C
Explaination / Solution:
In adiabatic process
Given that W = -22.3J
in second process
Q6. The process of evolution of different species in a given geographical area starting from a point and radiating to other geographical area is called
Answer : Option A
Explaination / Solution:
In evolutionary biology, adaptive radiation is a process in which organisms diversify rapidly from an ancestral species into a multitude of new forms, particularly when a change in the environment makes new resources available, creates new challenges, or opens new environmental niches.
Q7. Pressure of 1 g of an ideal gas A at 27 ∘C is found to be 2 bar. When 2 g of another ideal gas B is introduced in the same flask at same temperature the pressure becomes 3 bar. Relationship between their molecular masses is
Answer : Option C
Explaination / Solution:
PV=(m/M)RT
Q8. The enzyme which dissolved blook clot is.
Answer : Option C
Explaination / Solution:
Streptokinase enzyme help in dissolving blood clot.
Q9. When hydrochloric acid is added to cobalt nitrate solution at room temperature, the following reaction takes place and the reaction mixture becomes blue. On cooling the mixture it becomes pink. On the basis of this information mark the correct answer.
(l )
(l )
Answer : Option C
Explaination / Solution:
This reaction is endothermic.
Q10. Which is not true about non-renewable resources?
Answer : Option C
Explaination / Solution:
No Explaination.
