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Directions to Solve

In each question below a sentence broken into five or six parts. Join these parts to make a meaningful sentence. The correct order of parts is the answer.

Q1: 1. seen 2. going 3. you 4. him 5. have

A 35142

B 53124

C 32514

D 35214

E 35124

Q2: What will be the output of the program ?

#include<stdio.h>

int main()
{
    static int arr[] = {0, 1, 2, 3, 4};
    int *p[] = {arr, arr+1, arr+2, arr+3, arr+4};
    int **ptr=p;
    ptr++;
    printf('%d, %d, %d\n', ptr-p, *ptr-arr, **ptr);
    *ptr++;
    printf('%d, %d, %d\n', ptr-p, *ptr-arr, **ptr);
    *++ptr;
    printf('%d, %d, %d\n', ptr-p, *ptr-arr, **ptr);
    ++*ptr;
    printf('%d, %d, %d\n', ptr-p, *ptr-arr, **ptr);
    return 0;
}

A 0, 1, 2
1, 2, 3
2, 3, 4
3, 4, 5

B 1, 1, 1
2, 2, 2
3, 3, 3
3, 4, 4

C 0, 0, 0
1, 1, 1
2, 2, 2
3, 3, 3

D 1, 1, 2
2, 2, 3
3, 3, 4
4, 4, 1

Q3: Teak wood is suitable for

A sports articles

B furnitures

C railway sleepers

D all the above.

Q4: The resistance of a dc galvanometer is 20 Ω. A current of 10 mA causes full scale deflection. To convert it into 0-300 V voltmeter, we have to use a series resistance of

A 30000 Ω

B 6000 Ω

C 29980 Ω

D 15 Ω

Q5: A mixture of 10% C₆H₆ vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around __________ °C.

A 27.3

B 18.7

C 21.7

D 20

ANS:D - 18.7

To find the dew point at 30°C and 700 mm Hg, we can use the concept of Dalton's Law of Partial Pressures and the Antoine equation for benzene. Given:

Mixture of 10% C6H6 vapor in air at 25°C and 750 mm Hg has a dew point of 20°C.

First, we need to determine the partial pressure of benzene (𝑃C6H6PC6H6) in the mixture at 25°C and 750 mm Hg. We can use the given vapor pressure of benzene at 25°C from the Antoine equation: log⁡10(𝑃C6H6)=𝐴−𝐵𝑇+𝐶log10(PC6H6)=A−T+CB Where:

𝐴=6.90565A=6.90565
𝐵=1211.033B=1211.033
𝐶=220.790C=220.790
𝑇T is the temperature in degrees Celsius.

Let's calculate 𝑃C6H6PC6H6: log⁡10(𝑃C6H6)=6.90565−1211.03325+220.790log10(PC6H6)=6.90565−25+220.7901211.033 log⁡10(𝑃C6H6)=6.90565−1211.033245.790log10(PC6H6)=6.90565−245.7901211.033 log⁡10(𝑃C6H6)=6.90565−4.92403log10(PC6H6)=6.90565−4.92403 log⁡10(𝑃C6H6)=1.98162log10(PC6H6)=1.98162 𝑃C6H6=101.98162PC6H6=101.98162 𝑃C6H6=96.658 mm HgPC6H6=96.658mm Hg Next, we need to find the dew point of the mixture at 30°C and 700 mm Hg. Since benzene obeys Dalton's Law of Partial Pressures, its partial pressure should remain constant when the total pressure decreases to 700 mm Hg. Therefore, the partial pressure of benzene (𝑃C6H6PC6H6) at 30°C and 700 mm Hg remains 96.658 mm Hg. Now, we can use the Antoine equation again to find the corresponding dew point at 30°C: log⁡10(𝑃C6H6)=6.90565−1211.03330+220.790log10(PC6H6)=6.90565−30+220.7901211.033 log⁡10(𝑃C6H6)=6.90565−1211.033250.790log10(PC6H6)=6.90565−250.7901211.033 log⁡10(𝑃C6H6)=6.90565−4.82798log10(PC6H6)=6.90565−4.82798 log⁡10(𝑃C6H6)=2.07767log10(PC6H6)=2.07767 𝑃C6H6=102.07767PC6H6=102.07767 𝑃C6H6=114.749 mm HgPC6H6=114.749mm Hg Therefore, the dew point at 30°C and 700 mm Hg will be approximately: log⁡10(𝑃C6H6)=6.90565−1211.03330+220.790log10(PC6H6)=6.90565−30+220.7901211.033 log⁡10(𝑃C6H6)=6.90565−1211.033250.790log10(PC6H6)=6.90565−250.7901211.033 log⁡10(𝑃C6H6)=6.90565−4.82798log10(PC6H6)=6.90565−4.82798 log⁡10(𝑃C6H6)=2.07767log10(PC6H6)=2.07767 𝑃C6H6=102.07767PC6H6=102.07767 𝑃C6H6=114.749 mm HgPC6H6=114.749mm Hg Therefore, the dew point at 30°C and 700 mm Hg will be approximately: 𝑇dew=𝐵𝐴−log⁡10(𝑃C6H6)−𝐶Tdew=A−log10(PC6H6)B−C 𝑇dew=1211.0336.90565−log⁡10(114.749)−220.790Tdew=6.90565−log10(114.749)1211.033−220.790 𝑇dew≈1211.0336.90565−2.06042−220.790Tdew≈6.90565−2.060421211.033−220.790 𝑇dew≈1211.0334.84523−220.790Tdew≈4.845231211.033−220.790 𝑇dew≈250.09−220.790Tdew≈250.09−220.790 𝑇dew≈29.3 °CTdew≈29.3°C Therefore, the dew point at 30°C and 700 mm Hg will be approximately 29.3°C.

Q6: Drag co-efficient in hindered settling is __________ that in free settling.

A equal to

B always greater than

C less than

D not necessarily greater than

ANS:D - always greater than

In hindered settling, the drag coefficient is generally greater than that in free settling.

Explanation:

Drag Coefficient in Settling:
- The drag coefficient (CdC_dCd) in the context of fluid mechanics and settling refers to the dimensionless coefficient that relates the drag force on a particle to its size, shape, and the fluid's properties.
- In free settling, where particles settle through a quiescent fluid (such as water), the drag coefficient primarily depends on the Reynolds number (ReReRe) of the particle and is typically lower compared to hindered settling conditions.
Hindered Settling:
- Hindered settling occurs when particles settle in a fluid that is in motion or when particles are settling in a concentrated suspension of particles. This situation leads to interactions between settling particles and other particles or the fluid, affecting the drag force experienced by each particle.
- Due to the interactions and collisions between particles and the surrounding fluid or other particles, the effective drag coefficient in hindered settling is generally higher than in free settling.
Comparison of Drag Coefficients:
- Less than: This option is incorrect because hindered settling typically involves more complex interactions and higher drag coefficients compared to free settling.
- Equal to: While possible in specific conditions, hindered settling generally leads to higher drag coefficients compared to free settling.
- Not necessarily greater than: This is incorrect because hindered settling conditions almost always result in higher drag coefficients due to increased interactions.
- Always greater than: This correctly describes the general trend where the drag coefficient in hindered settling is higher than that in free settling due to increased particle-fluid and particle-particle interactions.

Conclusion:

Therefore, in hindered settling, the drag coefficient is always greater than that in free settling due to the increased complexity and interactions involved in the settling process.

Q7: Which state is to host the First Ever World Table Tennis (WTT) Series Event in India?

A Goa

B Kerala

C Tripura

D Jharkhand

Q8: National Milk Day is being celebrated on which date?

A November 24

B November 25

C November 27

D November 26

Q9: Which state Governor has given his nod to the State's Freedom of Religion (Amendment) Act?

A Uttar Pradesh

B Goa

C Assam

D Uttarakhand

Q10: When is 'Constitution Day' celebrated in India?

A November 30

B December 01

C November 26

D November 24

Oops! That page can't be found.

Q1: 1. seen 2. going 3. you 4. him 5. have

Q3: Teak wood is suitable for

Q4: The resistance of a dc galvanometer is 20 Ω. A current of 10 mA causes full scale deflection. To convert it into 0-300 V voltmeter, we have to use a series resistance of

Q5: A mixture of 10% C₆H₆ vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around __________ °C.

Q6: Drag co-efficient in hindered settling is __________ that in free settling.

Explanation:

Conclusion:

Q7: Which state is to host the First Ever World Table Tennis (WTT) Series Event in India?

Q8: National Milk Day is being celebrated on which date?

Q9: Which state Governor has given his nod to the State's Freedom of Religion (Amendment) Act?

Q10: When is 'Constitution Day' celebrated in India?

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Q1: 1. seen 2. going 3. you 4. him 5. have

Solution

Solution

Q3: Teak wood is suitable for

Solution

Q4: The resistance of a dc galvanometer is 20 Ω. A current of 10 mA causes full scale deflection. To convert it into 0-300 V voltmeter, we have to use a series resistance of

Solution

Q5: A mixture of 10% C6H6 vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around __________ °C.

Solution

Q6: Drag co-efficient in hindered settling is __________ that in free settling.

Solution

Explanation:

Conclusion:

Q7: Which state is to host the First Ever World Table Tennis (WTT) Series Event in India?

Solution

Q8: National Milk Day is being celebrated on which date?

Solution

Q9: Which state Governor has given his nod to the State's Freedom of Religion (Amendment) Act?

Solution

Q10: When is 'Constitution Day' celebrated in India?

Solution

Q5: A mixture of 10% C₆H₆ vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around __________ °C.