Group 1 Prelims 2014 July TNPSC Question Paper

Group 1 Prelims 2014 July TNPSC Questions

1.

Which of the following is/are correctly matched?

I. Hard resin - Cocaine

II. Oleo resin - Canada Balsam

III. Latex - Rubber

IV. Alkaloid - Asafoetida

A.

I only

B.

II and III

C.

III only

D.

I and IV

ANSWER :

B. II and III

2.
Which one of the following statement(s) about Blue Green Algae (BGA) is/are not correct?
A.
They are gram negative photosynthetic cyanobacteria
B.
They have survived for about 3 billion years
C.
Spirulina is the edible form of BGA
D.
Sargassum belongs to BGA
ANSWER :
D. Sargassum belongs to BGA
3.
The chromonema is a coiled structure, which can be easily separated in case of
A.
Paranemic coil
B.
Plectonemic coil
C.
Chromonemic coil
D.
Telonemic coil
ANSWER :
A. Paranemic coil
4.
In 1905, Albert Einstein discovered
A.
Photoelectric effect and Brownian motion
B.
Brownian motion and special theory of relativity
C.
Special theory of relativity and photoelectric effect
D.
Photoelectric effect, special theory relativity and Brownian motion
ANSWER :
C. Special theory of relativity and photoelectric effect
5.

1. Dynamic lift of aeroplane is based on the principle of Bernoulli's theorem.

2. Glass is less elastic than rubber.

3. For a system free from external forces, linear momemtum of the system remains constant

Which of the above statement is/are wrong?

A.

(2) only

B.

Both (2) and (3)

C.

(3) only

D.

Both (1) and (2)

ANSWER :

A. (2) only

6.
A rocket 100 m long at rest starts to move with uniform motion of 0.8 C. What is its length as seen by an observer at rest?
A.
60 m
B.
80 m
C.
100 m
D.
0
ANSWER :
A. 60 m
7.
Which of the following has the highest ionizing power?
A.
X-rays
B.
Alpha rays
C.
Beta rays
D.
Gamma rays
ANSWER :
B. Alpha rays
8.
Sound waves from a sounding car are
A.
transverse waves
B.
longitudinal waves
C.
ultrasonic waves
D.
stationary waves
ANSWER :
B. longitudinal waves
9.

Consider the following statements.

Assertion (A) : Receptors for steroid hormones are located inside the cells.

Reason (R) : Because steroid hormones are lipid soluble molecules that diffuse easilyy through the phospholipid interior of cell membrane.

A.

Both (A) and (R) are true and (R) is the correct explanation of (A)

B.

Both (A) and (R) are true (R) is not a correct explanation of (A)

C.

(A) is true but (R) is false

D.

(A) is false but (R) is true

ANSWER :

A. Both (A) and (R) are true and (R) is the correct explanation of (A)

10.
Hormone Gastrin acts as
A.
Stimulates HCl production
B.
Causes contraction of gall bladder
C.
Water and Salt secretion
D.
Stimulate urine elimination
ANSWER :
A. Stimulates HCl production