Consider a glider is descending from 2km altitude. If it covers range of 30km then, at which aerodynamic efficiency the glider was flying?

On a 60km track travels the first 30km with a uniform speed of 30km/h. How fast must the train travel the next 30km so as to average 40km.h for the entire trip?

A

60km.h

B

90km/h

C

120km/h

D

30km/h

If altitude bubble is provided both on index frame as well as on telescope of a theodolite, then the instrument is levelled with reference toi) altitude bubble on index frameii) altitude bubble on index frame if it is to be used as a leveliii) altitude bubble on telescopeiv) altitude bubble on telescope if it is to be used as a level The correct answer is

A

only (i)

B

both (i) and (iv)

C

only (iii)

D

both (ii) and (iii)

If altitude bubble is provided both on index frame as well as on telescope of a theodolite, then the instrument is levelled with reference to
i) altitude bubble on index frame
ii) altitude bubble on index frame if it is to be used as a level
iii) altitude bubble on telescope
iv) altitude bubble on telescope if it is to be used as a level
The correct answer is

A

only (i)

B

both (i) and (iv)

C

only (iii)

D

both (ii) and (iii)

Consider the following statements relating zones of atmosphere to altitude: 1. Temperature decreases with altitude in troposphere. 2. Speed of sound decreases with altitude in troposphere. 3. Temperature increases with altitude in stratosphere. 4. Ozone is present in stratosphere which protects people from harmful effects of solar radiation. Which of the above statements are correct?

A

1, 2 and 3 only

B

1, 2 and 4 only

C

3 and 4 only

D

1, 2, 3 and 4

If a glider needs to be flown at maximum range then, at which value of CL we should fly this glider? Consider CD0/K is 2.8.

A

1.67

B

3.2

C

5.6

D

2.5

A plane flying north at 500 mph passes over a city at 12 noon. A plane flying east at the same altitude passes over the same city at 12.30 pm. The plane is flying east at 400 mph. To the nearest hundred miles, how far apart are the two planes at 2 pm ?

A

600 miles

B

1000 miles

C

1100 miles

D

1200 miles

E

1300 miles

A glider has aspect ratio of 20 and CD0 of 0.02. In order to attain maximum range, determine the value required aerodynamic efficiency. Take e as 1.

A

28.02

B

20

C

30

D

43

Determine the corrections or otherwise of the following assertion and reason : Assertion : Fuel consumption is more for low level, high speed flight mission. Reason: At low altitude, the aerodynamic efficiency decreases drastically which affects the engine efficiency and range as well. To maintain cruise flight more fuel consumption is required. and are true and is the correct reason for b) Both and are true but is not the correct reason for c) is true but is false d) is false but is true

A

and reason : Assertion : Fuel consumption is more for low level, high speed flight mission. Reason: At low altitude, the aerodynamic efficiency decreases drastically which affects the engine efficiency and range as well. To maintain cruise flight more fuel consumption is required. ] Both and are true and is the correct reason for

B

A

C

A

D

A

If aerodynamic efficiency of the glider is 20 then, found the value of corresponding glide angle.

A

2.86 unit

B

3.8

C

5.6

D

12.12

In a bag, white mobile covers and black mobile covers are in the ratio of 4 : 7. If there are 280 black mobile covers, then how many white mobile covers are there in the bag?

A

158

B

160

C

156

D

154

Consider a glider is descending from 2km altitude. If it covers range of 30km then, at which aerodynamic efficiency the glider was flying?

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