# All India Civil Engineering (CE) Group

## The resected position of plane-table station from three known position is unreliable if the station liesa)in the great triangleb)on circumference of circumscribing circlec)outside the great triangled)in the centre of the circumscribing circleCorrect answer is option 'B'. Can you explain this answer?

 Rajesh Gundeti answered  •  2 hours ago
If the station lies on the circle of any side of the triangle, then the position of 3rd known point is far when compared to the other points. The longer the length, the more is the chance for error to arise. This makes the station point on the circumference of the circumscribing circle unreliable because of high chance for error in chaining.

## The convective film coefficient in k cal/m2 hr degree can be converted to J/m2 s degree by multiplying it with a factora)1.1627b)1.1527c)1.1427d)1.1327Correct answer is option 'A'. Can you explain this answer?

Both k cal/m2 hr degree and J/m2 s are the units of convective film coefficient.

## Bernoulli’s equation for fluid flow along a stream line is given asa)p/w + V2/2 g + y = 2b)p/w + V/2 g + y = constantc)p/w + V2/2 g + y = 1d)p/w + V2/2 g + y = constantCorrect answer is option 'D'. Can you explain this answer?

This is the Bernoulli’s equation and is dimensionally homogenous.

## How many Newton’s are there in one kg?a)9.507b)9.607c)9.707d)9.807Correct answer is option 'D'. Can you explain this answer?

1 kg = 9.807 N. Newton is the unit of force and kg is the unit of mass.

## The specific energy of a rectangular channel having dimensions 2m×3m is 3.095m. Calculate the friction factor.a)0.01b)0.02c)0.03d)0.04Correct answer is option 'C'. Can you explain this answer?

 Gate Funda answered  •  5 hours ago ## The pressure in kg/cm2 can be converted to N/m2 by multiplying it with a factora)9.807 * 102b)9.807 * 103c)9.807 * 104d)9.807 * 105Correct answer is option 'C'. Can you explain this answer?

 Gate Funda answered  •  5 hours ago
Both kg/cm2 and N/m2 are the units of pressure.

## What is the time period of oscillation of a simple pendulum of length L and mass m?a)2 π (L/g) 3/2b)2 π (L/g)c)2 π (L/g) 2d)2 π (L/g) 1/2Correct answer is option 'D'. Can you explain this answer?

 Gate Funda answered  •  5 hours ago
The time period of a simple pendulum means the time it takes for one complete revolution.

## Calculate the specific energy for the most economical rectangular channel having depth 2m and width 4m if the bed slope of the channel is 1 in 1200. C = 35.a)2.05mb)3.05mc)4.05md)5.05mCorrect answer is option 'A'. Can you explain this answer?

 Gate Funda answered  •  5 hours ago
For most economical rectangular channel,
A = By = 8m2; R = y/2 = 1m E = y + Q2/2gA2 = 2.05m.

## The depth of a trapezoidal channel section is 2m, base width of 3m and has a side slope of 1H:2V. Calculate n if the bed slope is 1 in 1000.a)0.012b)0.013c)0.014d)0.015Correct answer is option 'B'. Can you explain this answer?

 Gate Funda answered  •  5 hours ago ## Estimate the specific energy for the most economical trapezoidal channel section having depth of 5m, side slope of 1H:4V and bed slope of 1 in 1200.a)1.14mb)2.14mc)3.14md)4.14mCorrect answer is option 'B'. Can you explain this answer?

 Gate Funda answered  •  5 hours ago ## How many Joule are there in 1 k cal?a)3186b)4186c)5186d)6186Correct answer is option 'B'. Can you explain this answer?

 Gate Gurus answered  •  5 hours ago
1 k cal = 4186 J. Joule is the unit of work done.

## What are y1 and y2 in the adjoining graph? a)Conjugate depthsb)Alternate depthsc)Equal depthsd)Sequent depthsCorrect answer is option 'B'. Can you explain this answer?

 Gate Gurus answered  •  5 hours ago
For a particular specific energy above the minimum specific energy there are two depths called as alternate depths.

## The equation of friction loss in a pipe of length l and diameter d through which fluid flows with velocity v isa)hi = 4 f V 2/d gb)hi = 4 f V 2/d 2 gc)hi = 4 f V 2/d 2d)hi = 4 f V 2/2 gCorrect answer is option 'B'. Can you explain this answer?

 Gate Gurus answered  •  5 hours ago
Here f is any constant with no dimensions whatsoever.

## How many fundamental quantities are there?a)1b)2c)3d)4Correct answer is option 'C'. Can you explain this answer?

 Gate Gurus answered  •  5 hours ago
These are M, L and T. M is mass, L is length and T is time.

## Calculate the velocity of flow through a channel having depth of 1.2m and specific energy equal to 1.24m.a)0.6 m/sb)0.7 m/sc)0.8m/sd)0.9m/sCorrect answer is option 'D'. Can you explain this answer?

 Gate Gurus answered  •  5 hours ago ## Calculate the average shear stress for a rectangular channel having depth 0.5m, width 0.8m if the specific energy is 0.56m.a)2.32 N/m2b)3.32 N/m2c)4.32 N/m2d)5.32 N/m2Correct answer is option 'C'. Can you explain this answer?

 Gate Gurus answered  •  5 hours ago ## Find the resultant force 130N and 110N respectively acting at an angle whose tangent is 12÷5?

 Abdullah Manzoor answered  •  15 hours ago
The answer is 200 N and angle 30.51