General Science - Online Test
Q1. The addition of vectors and the multiplication of a vector by a scalar together gives rise to
Answer : Option B
Explaination / Solution:
If a vector is multiplied by a scalar as in , then the magnitude of the resulting vector is equal to the product of p and the magnitude of , and its direction is the same as if p is positive and opposite to if p is negative.
Distributive law for scalar multiplication:
Q2. The emulsifying agent present in milk that makes it stable is
Answer : Option B
Explaination / Solution:
fact
Q3. Which of the following policy was followed by Pakistan
Answer : Option C
Explaination / Solution:
Import substitution industrialization (ISI) is a trade and economic policy which advocates replacing foreign imports with domestic production. ISI is based on the premise that a country should attempt to reduce its foreign dependency through local production of industrialized products.
Q4. Electrostatic force is
Answer : Option A
Explaination / Solution:
Electrostatics means charges at rest,or relatively at rest so this force can be applicable only when charge produce electric field which is constant which is possible only when charges at rest or relatively at rest.
Q5. volume strain is defined
Answer : Option D
Explaination / Solution:
No Explaination.
Q6. The technique used to produce large number of genetically identical offspring is called as
Answer : Option A
Explaination / Solution:
Cloning is the production of an exact copy of an animal by means of asexual reproduction. Any two animals which contain exactly the same genes are called genetically identical.
An animal which is genetically identical to its parents is called clone.
The cloning of a large animal was successfully done for the first time by Ian Wilmut and his colleagues at the Roslin Institute in Edinburg.
They cloned a sheep named Dolly from its parent sheep called Finn Dorest sheep.
Q7. The part of a nephron which adds some material to the filtrate is :
Answer : Option C
Explaination / Solution:
Each nephron consists Bowman’s cup, tubules and loops of Henle’s. filtration of blood occurs in glomerulus cells present in Bowman’s cup. Some materials are added to initial filtrate in distal convoluted tubule.
Q8. First Law of Thermodynamics is
The first law of thermodynamics is the application of the conservation of energy principle to heat and thermodynamic processes:
Answer : Option D
Explaination / Solution:
No Explaination.
Q9. Which of the following amino acids was not found to be synthesized in Miller’s Experiment?
Answer : Option C
Explaination / Solution:
The famous experiment of Urey and Miller regarding origin of life from inorganic substance produced amino acids, sugar and nitrogenous base etc. glutamic acid was not found in this experiment.
Q10. At constant temperature, the pressure of a fixed amount (i.e., number of moles n) of gas is?
Answer : Option A
Explaination / Solution:
From ideal gas equation PV=nRT,
keeping n and T fixed,
P α 1/V. (Boyles Law)
Here, T = Temperature
P = Pressure
α. = sign of Proportionality
V = Volume
n= number of moles of gas
R= Universal gas constant
