General Science - Online Test
Q1. The number of junctions in a transistor is/are
Answer : Option C
Explaination / Solution:
A transistor consisting of two p-n junctions combined to form either an n-p-n or a p-n-p transistor, having the three electrodes, the emitter, base, and collector
Q2. Resistance of 0.2 M solution of an electrolyte is 50 Ω. The specific conductance of the solution is 1.3 S . If resistance of the 0.4 M solution of the same electrolyte is 260 Ω, its molar conductivity is
Answer : Option C
Explaination / Solution:
κ= G × cell constant and G= 1/R.
Q3.
for the reaction . Calculate for the reaction, and predict whether the reaction may occur spontaneously.
Answer : Option C
Explaination / Solution:
Q4. A composite price index based on the prices of a group of items is known as the
Answer : Option D
Explaination / Solution:
No Explaination.
Q5. Sperms are of
Answer : Option B
Explaination / Solution:
Half of the sperm contain X-sex chromosome and remaining half contain Y-sex chromosome. Hence two kinds of sperms are formed by human male.
Q6. Match the following. Options are
Answer : Option D
Explaination / Solution:
No Explaination.
Q7. The class mid-point is equal to
Answer : Option B
Explaination / Solution:
The lower limit for every class is the smallest value in that class. On the other hand, the upper limit for every class is the greatest value in that class. The class midpoint is the lower class limit plus the upper class limit divided by 2.
Q8. Which of the following does NOT come under the rubric of fiscal policy?
Answer : Option D
Explaination / Solution:
No Explaination.
Q9. A jet lands on an aircraft carrier at 60 m/s. It stops in 2.0 s? What is the displacement of the plane in m while it is stopping?
Answer : Option D
Explaination / Solution:
Initial velocity u = 60 m/s
As it stops so final velocity v = 0 m/s
Time taken t = 2 seconds
We know
v-u = at
Also
From (1), we have
After putting given values, we have
=> s = 120-60 = 60 m
Q10. A whistling engine is approaching a stationary observer with velocity 110m/s. The velocity of sound is 330 m/s. The ratio of frequencies as heard by observer at the time of approaching and passing of engine is
Answer : Option A
Explaination / Solution:
No Explaination.
