General Science - Online Test
Q1. Cathode rays are discharged under one of the following conditions:
Answer : Option C
Explaination / Solution:
Production of cathode rays Cathode rays are produced in the discharge tube by applying the following conditions:
- A high potential difference (>1200 V) is applied across the two aluminium electrodes.
- The length of the tube is 30 cm and the diameter is 3 cm.
- Pressure inside the tube is maintained below 0.01 mm of Hg.
Q2. Human internal ear is :
Answer : Option A
Explaination / Solution:
Human body is triploblastic in nature, ectoderm, mesoderm and endoderm. These three layers of embryo forms the different organs of human beings. Human internal ear is ectodermal in origin.
Q3. Average cost is derived by
Answer : Option B
Explaination / Solution:
No Explaination.
Q4. In general, when a solid is heated, it
Answer : Option B
Explaination / Solution:
Δl=βVΔTΔA=αVΔTΔV=γVΔT
Q5. The Earth does not directly provide which of man’s basic needs :
Answer : Option A
Explaination / Solution:
The Earth does not directly provide Shelter which is man's basic need. we have to use different resources on earth available in different forms to convert them into objects that can be used as a shelter
Q6. Red hot steel rods on suddenly immersing in water become
Answer : Option B
Explaination / Solution:
Red hot steel rods on suddenly immersing in water become hard and brittle.
Q7. If two variables oppose each other then the correlation will be
Answer : Option A
Explaination / Solution:
Negative correlation implies that high value of one variable will correspond to a low value of another variable and vice versa.
Q8. ____ it is a cut off point on the line of distribution which divides the population into poor and non-poor
Answer : Option B
Explaination / Solution:
A minimum income level used as an official standard for determining the proportion of a population living in poverty is called poverty line.
Q9. Thallus of Riccia is
Answer : Option D
Explaination / Solution:
Riccia is a genus of liverworts in the order Marchantiales. In bryophytes, plant body is generally haploid (n) that alternate with diploid form for shorter period. The thallus of Riccia is Halploid.
Q10. Lysosomes are rich in hydrolytic enzymes such as
Answer : Option A
Explaination / Solution:
Lysosomes are found to be very rich in almost all types of hydrolytic enzymes (hydrolases – lipases, proteases, carbohydrases) optimally active at the acidic pH. These enzymes are capable of digesting carbohydrates, proteins, lipids and nucleic acids.
