General Science - Online Test
Q1. Momentum of a body is
Answer : Option B
Explaination / Solution:
p⃗ =mv⃗
Q2. In a circuit containing Resistance only, voltage and current are
Answer : Option A
Explaination / Solution:
The electrical current that flows through an AC resistance varies sinusoidally with time and is represented by the expression, I(t) = I sin(ωt + θ)
Now by ohm's law, V= IR
So, for the AC circuit, V= IR sin(ωt + θ)
Clearly both V and I have zero phase difference and hen are in phase
Q3. Discovery of actin is credited to
Answer : Option D
Explaination / Solution:
Actin and myosin filaments are responsible for contraction and relaxation of muscle. The discovery of actin is credited to Straub.
Q4. Which among the following is an example of network solid?
Answer : Option D
Explaination / Solution:
Carbon is network solid due to its tendency to form Catination.
Q5. Bt toxin is coded by which gene?
Answer : Option D
Explaination / Solution:
The Bt toxin is encoded by the cry gene. The cry I AC and cry II Ab control cotton boll worms, while the cry I Ab controls corn borer. Bt gene produces Bt toxin. This toxin provides resistance to plants against lepidopteron, coleopteron and dipterans pests.
Q6. In ET technique embryo is transferred into
Answer : Option B
Explaination / Solution:
In ET (embryo transfer) technique, in vitro fertilized embryo is transferred into fallopian tube or uterus for further development.
Q7. Money flow is the flow of
Answer : Option A
Explaination / Solution:
No Explaination.
Q8. Consumer’s surplus is also known as?
Answer : Option A
Explaination / Solution:
No Explaination.
Q9. Mendeleev proposed that some of the elements were still undiscovered and, therefore, left several gaps in the table. He left the gap under aluminium and a gap under silicon, and called these elements Eka-Aluminium and Eka-Silicon. These were later discovered and named
Answer : Option C
Explaination / Solution:
Mendeleev arranged the elements according to their atomic weights. He corrected the atomic weights of few exisiting elements to explain their chemical and physical behaviour. Moreover, he felt that few elements are still to be discovered, so he left empty spaces for them in his periodic table. Two such elements whose properties he predicted; and were later discovered are Gallium and Germanium respectively.
Q10. In circuits, a difference in potential from one point to another is often called
Answer : Option A
Explaination / Solution:
Voltage is the common term used for potential difference or e m f.
