General Science - Online Test

Q1. Xerosere that begins on sand is called:
Answer : Option C
Explaination / Solution:

A psammosere is a seral community, an ecological succession that began life on newly exposed coastal sand. Most common psammoseres are sand dune systems.

Q2. Fiscal deficit
Answer : Option D
Explaination / Solution:
No Explaination.


Q3. The median of an ordered set of data is the value that represents
Answer : Option D
Explaination / Solution:

The median can be easily computed by sorting the data from smallest to largest and counting the middle value.

Q4. Which of the following economic activity is not in the tertiary sector?
Answer : Option A
Explaination / Solution:

The tertiary sector consists of industries which provide a service, such as transport and finance etc.

Q5. The driver of a three-wheeler moving with a speed of 36 km/h sees a child standing in the middle of the road and brings his vehicle to rest in 4.0 s just in time to save the child. The mass of the three-wheeler is 400 kg and the mass of the driver is 65 kg.Find out the deceleration produced and the retarding force on a vehicle.
Answer : Option B
Explaination / Solution:

V= final velocity = 0

V0 = initial velocity = 36 km/h = 10 m/s


F= ma = -465 x 2.5 = -1162.5N (negative sign indicates the retarding force) 


Q6. Which of the following amines can be resolved into enantiomers?
Answer : Option D
Explaination / Solution:

2-pentamine will have a chiral center.

Q7. Read the following statements :

i. cartilaginous joint is often called symphysis and eg. joints between adjacent vertebrae.
ii. The joint between atlas and axis vertebrae in man is a cartilaginous joint.
Answer : Option B
Explaination / Solution:

The joint between the adjacent vertebrae in the vertebral column is caritilaginous joint.

Q8. In 1997, an American company got patent rights on
Answer : Option B
Explaination / Solution:

In September 1997 Texas, USA company RiceTec was granted U.S. Patent No. 5,663,484 on "basmati rice lines and grains." The patent secures lines of basmati and basmati-like rice and ways of analyzing that rice. RiceTec, owned by Prince Hans-Adam of Liechtenstein, faced international outrage over allegations of biopiracy.

Q9.

In the free or the uncombined state, each atom in O2O3,P4,S8 and Mg has the oxidation number


Answer : Option D
Explaination / Solution:

In free or uncombined state each element has zero oxidation state.

Q10. Contraceptive oral pills help in birth control by
Answer : Option C
Explaination / Solution:

Contraceptive pills contain hormone progestogens or estrogen or combination of both. These hormones prevent the ovulation and prevent the pregnancy.