General Science - Online Test
Q1. Pulse is specified by pulse height or the peak voltage, the pulse duration and pulse to pulse spacing. In pulse amplitude modulation (PAM) what changes with base band signal is
Answer : Option A
Explaination / Solution:
No Explaination.
Q2. Delocalisation of σ electrons of C -H bond of an alkyl group directly attached to an atom of unsaturated system or to an atom with an unshared p orbital is called:
Answer : Option B
Explaination / Solution:
Delocalisation of σ electrons of C -H bond of an alkyl group directly attached to an atom of unsaturated system or to an atom with an unshared p orbital is known as Hyperconjugation
Q3. S = -a+(1-b)Y is a
Answer : Option A
Explaination / Solution:
No Explaination.
Q4. Death rate and birth rate at the time of independence was
Answer : Option D
Explaination / Solution:
High birth rate and high death rate are treated as an index of backwardness of India, at the time of independence (1947)
Q5. The rate law for the reaction is given by rate= k[RCl]. The rate for this reaction
Answer : Option C
Explaination / Solution:
Since order of reaction with respect to RCl is one so if conc of Rcl is halfed the rate of reaction will also become half.
Q6. If the upper limits of the classes and proceed by adding the frequencies that this method will be called
Answer : Option B
Explaination / Solution:
For "less than" ogive the cumulative frequencies are plotted against the respective upper limits of the class intervals
Q7. Jamshedji Tata National Virtual Academy is to impart operational training to nearly ___ lac rural people to run info-kiosks
Answer : Option A
Explaination / Solution:
By giving tranining, the quality and quantity of crops can be increased manifold if the farmers are made aware of the latest equipments, technologies and resources.
Q8. A projectile is fired a velocity of 150 meters per second at an angle of 30 degrees with the horizontal. What is the magnitude of the vertical component of the velocity at the time the projectile is fired?
Answer : Option A
Explaination / Solution:
Initial velocity u = 150 m/s
Angle
Vertical component is given by
= 75 m/s
Q9. In China reforms were introduced in 1978 because
Answer : Option A
Explaination / Solution:
Economic reforms introducing market principles began in 1978 and were carried out in two stages. The first stage, in the late 1970s and early 1980s, involved the decollectivization of agriculture, the opening up of the country to foreign investment, and permission for entrepreneurs to start businesses.
Q10. In some lower plants and social insects, the haploid cells are divide by
Answer : Option C
Explaination / Solution:
Mitosis is called equational division. Since the parent cells are haploi so mitosis will lead to restoration of chromosome number in haploid cells.
