A technique for estimating regression line, which minimizes sum of vertical deviations squares is classified as

Deviations between estimated regression line and vertical deviations are classified as

A

fixed terms

B

indexed terms

C

variable terms

D

residual terms

A technique which minimizes sum of squared vertical difference, to determine regression line is considered as

A

negative square technique

B

positive square technique

C

least square technique

D

most square technique

Which of the following statements relating to correlation and reegression are true?
1. The coefficient of correlation is independent of change of origin and scale
2. The coefficient of correlation between the two variables is the arithmetic average of the two regression coefficients
3. The probable error of the coefficient correlation is 0.6745 times of its standard error
4. Coefficient of correlation multiplied by the ratio between the standard deviations of the two variables denotes the slope of the regression line
Select the correct answer:

A

1, 2 and 3

B

1, 3 and 4

C

Both 2 and 4

D

2, 3 and 4

The value of 'A' of Indian type W.C. shown in the given figure is:
Estimating and Costing mcq question image

A

25 cm

B

30 cm

C

40 cm

D

45 cm

The value of 'C' of Indian type W.C. shown in the given figure is:
Estimating and Costing mcq question image

A

400 mm

B

450 mm

C

500 mm

D

550 mm

The value of 'B' of Indian type W.C. shown in the given figure is:
Estimating and Costing mcq question image

A

45 cm

B

50 cm

C

30 cm

D

25 cm

The area of the cross-section of a road fully in banking shown in the given figure, is
Estimating and Costing mcq question image

A

$$\frac{{{\text{s}}{{\text{b}}^2} + {{\text{r}}^2}{{\left( {2{\text{bd}} + {\text{sd}}} \right)}^2}}}{{{{\text{r}}^2} - {{\text{s}}^2}}}$$

B

$$\frac{{{\text{s}}{{\text{b}}^2} + {{\text{r}}^2}{{\left( {2{\text{bd}} + {\text{sd}}} \right)}^2}}}{{{{\text{r}}^2} - {{\text{s}}^5}}}$$

C

$$\frac{{{\text{s}}{{\text{b}}^2} + {{\text{r}}^2}{{\left( {2{\text{bd}} + {\text{sd}}} \right)}^2}}}{{{\text{r}} - {\text{s}}}}$$

D

None of these

The cost of the earthwork in excavation for the surface drain of cross-section shown in the given figure for a total length of 5 metres @ Rs. 450% cum, is
Estimating and Costing mcq question image

A

Rs. 400

B

Rs. 425

C

Rs. 450

D

Rs. 500

The cross-sectional area of the embankment of a canal fully in embankment in the given figure is
Estimating and Costing mcq question image

A

$$\frac{1}{2}\left( {{{\text{b}}_1} + {{\text{b}}_2}} \right){\text{h}}$$

B

$$\left( {{{\text{b}}_1} + {{\text{b}}_2}} \right){\text{h}} + {\text{s}}{{\text{h}}^2}$$

C

$$\left( {{{\text{b}}_1} + {{\text{b}}_2}} \right) + 2{\text{s}}{{\text{h}}^2}$$

D

$$2\left$$

The reduced levels of points, 30 metres apart along the longitudinal section of a road portion between chainages 5 and 9 are shown in the given figure. If there is a uniform up-gradient of the road 120 in 1, the chainage of the point with no filling or cutting is
Estimating and Costing mcq question image

A

(6 + 15) chains

B

(6 + 12) chains

C

(6 + 18) chains

D

None of these

A technique for estimating regression line, which minimizes sum of vertical deviations squares is classified as

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