LDC

1. The approximate intensity level of sound which can cause damage to the ear drum is :

A. 20 dB B. 60 dB C. 100 dB D. 160 dB E. 200 dB

2. A Barometer reads 75 cm. of mercury on the ground floor of an office building of height 100 m. At the top of the building the barometer reading will be:

A Greater than 75 cm. B. 75 cm C. Less than 75 cm.

D. Greater or less than 75 cm. depending upon the type of barometer

3. A man is standing on a weighing in a lift which is moving. The weighing machine will show minimum reading when the lift is moving:

A. Upward with uniform speed.

B. Downward with uniform acceleration

C. Upward with uniform Acceleration

D. In a free fall due to the failure of lift mechanism.

E. Downward with uniform speed

4. If the momentum of a body increase by 20% then its kinetic energy will be increased by:

A. 20% B. 40% C. 44% D. 50% E. 80%

5. A slow running pendulum clock can be speeded up by:

A. Increasing the length of the rod B. Increasing the weight of the bob

C. Reducing the length of the bob C. Reducing in the weigh of the bob

E. Increasing the length of the rod and decreasing the weigh of the bob.

6. (45)² – (41)² = ? + 4

A. 86 B. 344 C.4 D. 1376 E. None

7. (6)2 – ? = 37 – 10

A. 63 B. 9 C.11 D. 15 E. None

8.

A. 4/9 B. 2* ¼ C. 1/36 D. 36 E. None

Directions: In the following (QS. 9 – 12). Some letters are given in the first line and numbers are given in the second line. Numbers are coded for letters and letters are coded for numbers. You have to choose the correct code from amongst the given answers to each question:-

LETTERS : W A G E I N T R M F

NUMBERS : 2 5 8 0 9 4 7 1 6 3

9. 5 2 0 4 3 8

A. A W F N E G B. A W E N G F C. A E W N F G

D. A W E N F G E. A N G F W E

10. 1 2 0 3 6 8

A. R W E F M G B. R W E M F G C. R E W F M G

D. R W E F G M E. R F E W G M.

11. M E G A W F

A. 6 0 7 5 2 3 B. 6 0 8 5 2 3 C. 6 0 7 5 3 2

D. 6 0 8 5 3 2 E. 6 0 2 3 7 5

12. N I T A G E

A. 4 7 9 5 8 0 B. 4 9 7 5 0 8 C. 4 7 9 5 0 8

D. 4 9 7 5 8 0 E. 4 9 0 8 7 5

13. In a certain code ADG “Boys are intelligent” JAM means “Select good Boys” and AGP means “Encourage intelligent Boys” which letter in that code means “Select” ?

A. J B. M C. D D. P E. Cannot be determined

14. If East becomes North – West, South becomes North – East, and so on what will West become?

A. North – West B. North – East C. East D. South – East E. None of these

15. I f Mani is taller than Raju but shorter than Deepak and Raju is just as tall as Mohan but taller than Ganesh then Mohan is:

A. Just as tall as Mani B. Shorter than Raju C. Taller than Deepak

D. Shorter than Mani E. Shorter than Ganesh.

ANSWERS

1. B. 60 dB 2. C. Less than 75 cm.

3. B. Downward with uniform acceleration

4. C. 44% 5. C. Reducing the length of the job

6. A. (45)² – (41)² = (45 + 41) (45 – 41) = 86 * 4

7. B. 36 – ? = 27 Þ ? = 36 – 27 = 9

8.

3 * 4 – 3 = ?

½ + 2

3 * 4 – 3 = 12 – 3 = 9 * 2 = 18 = 3 3

1/2 + 2 5/2 5 5 5

9. D. A W E N F G 10. A. R W E F M G

11. B. 6 0 8 5 2 3 12. D. 4 9 7 5 8 0

13. E. From the given information we cannot determine the code for select. The code for select in either J or M.

14. D. South – East 15. D. Shorter than Mani