# Prasar Bharati Online Exam: Quiz!

30 Questions | Total Attempts: 65  Settings Create your own Quiz • 1.
A is thrice as good as a workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:
• A.

20 days

• B.

22 ½ days

• C.

30 days

• D.

25 days

• 2.
An alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C?
• A.

325 Rs

• B.

Rs. 400

• C.

Rs. 800

• D.

600 Rs

• 3.
A can do a piece of work in 4 hours; B and C together can do it in 3 hours, while A and C together can do it in 2 hours. How long will B alone take to do it?
• A.

8 hours

• B.

10 hours

• C.

12 hours

• D.

24 hours

• 4.
A can-do certain work at the same time which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in:
• A.

15 days

• B.

20 days

• C.

25 days

• D.

30 days

• 5.
A machine P can print one lakh books in 8 hours, machine Q can print the same number of books in 10 hours while machine R can print them in 12 hours. All the machines are started at 9 A.M. while machine P is closed at 11 A.M. and the remaining two machines complete work. Approximately at what time will the work (to print one lakh books) be finished?
• A.

12 : 30 P.M

• B.

1:00 P.M.

• C.

11: 30 A.M

• D.

2: 00 P.M.

• 6.
When a ray of light enters glass from water, it bends:
• A.

Towards the normal due to decrease in the speed of light

• B.

Towards the normal due to increase in the speed of light

• C.

Away from the normal due to increase in the speed of light

• D.

Away from the normal due to decrease in the speed of light

• 7.
The velocity of light in water is:
• A.

1.08

• B.

1.33

• C.

1.66

• D.

1.09

• 8.
A convex lens magnifying glass is of:
• A.

Short focal length

• B.

Long focal length

• C.

Very long focal length

• D.

All the above

• 9.
The objective lens of a telescope forms:
• A.

Real image

• B.

Virtual image

• C.

Indistinct image

• D.

None of the above

• 10.
Astigmatism is corrected by using:
• A.

Convex lens

• B.

Concave lens

• C.

Cylindrical lens

• D.

Plane lens

• 11.
Eye piece of telescope forms a:
• A.

Real image

• B.

Virtual image

• C.

Both the above

• D.

None of the above

• 12.
In India who is the chairman of the Planning Commission?
• A.

President

• B.

Prime Minister

• C.

Speaker

• D.

None of these

• 13.
How long can a Presidential ordinance remain in force?
• A.

1 year

• B.

6 months

• C.

2 months

• D.

None of these

• 14.
First Lok Sabha Speaker was:
• A.

G.V. Mavlankar

• B.

Meera Kumari

• C.

Ravi Singh

• D.

Hukam Singh

• 15.
Maximum time between two Session of Parliament is:
• A.

Six months

• B.

1 year

• C.

1 month

• D.

None of these

• 16.
Study the following bar-graph and answer the questions given below. Number of Bike A and B type sold over the years in thousand. What is the ratio between the total number of bikes of A in the years 2004, 2006, and 2007 together and the total number of bikes of B in years 2002, 2004, and 2005?
• A.

5:6

• B.

1:2

• C.

2:1

• D.

3:4

• 17.
Study the following bar-graph and answer the questions given below. The Number of Bike A and B type sold over the years in thousand. The number of bikes of B type in the year 2007 is what percent of the total number of bikes of B type in all the years together? (Round off to two digits after decimal).
• A.

15

• B.

7.5

• C.

30

• D.

20.25

• 18.
Study the following bar-graph and answer the questions given below. The number of Bike A and B type sold over the years in thousand. What is the average number of bikes of A type for all the years together?
• A.

16667

• B.

18667

• C.

25556

• D.

20000

• 19.
Study the following bar-graph and answer the questions given below. Number of Bike A and B type sold over the years in thousand. 19.    What is the approximate percentage rise in number of bikes of A type from 2005 to 2006?
• A.

200

• B.

300

• C.

400

• D.

500

• 20.
Study the following bar-graph and answer the questions given below. The number of Bike A and B type sold over the years in thousand. What is the difference between the average of A-type bikes for all the years and the average of B type bikes for all the years?
• A.

8667

• B.

15555

• C.

11111

• D.

None

• 21.
Superconductivity is destroyed.
• A.

At high Tempt

• B.

At high magnetic Fied

• C.

In the Presence of magnetic impurities

• D.

In all of the above

• 22.
Bohr Magneton is the unit of?
• A.

Magnetic energy

• B.

Permanent dipole moment due to spin

• C.

Polarisability

• D.

Hysteresis loss

• 23.
For which of the following materials, is the Hall coefficient  Zero?
• A.

Metal

• B.

Insulator

• C.

Intrinsic Semiconductor

• D.

Alloy

• 24.
Bakelite is
• A.

A semiconductor

• B.

Incombustible

• C.

Low resistance conductor

• D.

Highly inflammable

• 25.
Which one of the Following components is an essential of electromechanical relays?
• A.

Graphite rod

• B.

LED

• C.

An elctromagnet

• D.

MOSFET

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