SSC-JUNIOR ENGINEER (Civil & Structural) Online Exam 2017 (Part-III)Total Questions: 5021. In geodetic surveying, sum of all the internal angles (degree) of a spherical triangle should be ________.A. equal to 180B. equal to 360C. greater than 180D. less than 180Correct Answer: C. greater than 180Solution:No explanation given in the book22. A line of 5 m on the original map is shrunk to 4.6 m. Calculate the shrunk scale if the original scale of the map was 1 cm = 80 m.A. 1 cm = 73.6 mB. 1 cm = 79.6 mC. 1 cm = 86.95 mD. 1 cm = 92.4 mCorrect Answer: C. 1 cm = 86.95 mSolution:No explanation given in the book23. Which of the following instrument is used for setting out right angles?A. ClinometersB. Offset rodC. Prism squareD. Plumb bobCorrect Answer: C. Prism squareSolution:No explanation given in the book24. Determine the normal pull (kg) for a tape of 20 m long standardized at a pull of 30 kg. The cross section area of the tape is 0.5 square centimetres, weight of the tape per metre is 20 gm. Take modulus of the elasticity for tape material as 21,00,000 kg per square centimetre.A. 28B. 36.8C. 64D. 78Correct Answer: C. 64Solution:No explanation given in the book25. Which of the following expression is used for calculation of R.L of a point?A. Height of instrument minus back sightB. Height of instrument plus fore sightC. Reduced level of previous point minus fore sightD. Reduced level of previous point minus fallCorrect Answer: D. Reduced level of previous point minus fallSolution:No explanation given in the book26. Calculate the reduced bearing of a line if its whole circle bearing is 130 degree.A. 50°B. N 130° EC. S 50° ED. S 50° WCorrect Answer: C. S 50° ESolution:No explanation given in the book27. Fore bearing and back bearing of the lines of a traverse are as follows:Which of the following stations is free from the local attraction?LineABBCCDDEFore bearing (degree)125172264316Back bearing (degree)30435183136A. A and DB. A and CC. C and DD. Only DCorrect Answer: D. Only DSolution:No explanation given in the book28. Which of the following features is shown by the parallel contour lines?A. Flat plainsB. HillsC. Steep slopeD. Uniform slopeCorrect Answer: D. Uniform slopeSolution:No explanation given in the book29. Calculate the distance between the instrument and the staff if the staff readings are 1.56 m, 2.05 m and 2.56 m. The multiplying constant is 100 and additive constant is 10.A. 61B. 110C. 112D. 215.67Correct Answer: B. 110Solution:No explanation given in the book30. Calculate the length (m) of the longer chord of 250 m radius curve having deflection angle of 90 degree.A. 250B. 353.6C. 392.7D. 500Correct Answer: B. 353.6Solution:No explanation given in the bookSubmit Quiz« Previous12345Next »
