126 Survey Chapter Wise McQ Test of 25 Question #4 Survey Chapter Wise McQ Test of 25 Question for PSC, NEC, UPSC, SSC and Many more. 1 / 25 1. The ratio of map distance to corresponding ground distance is called as A. Representative factor B. Representation factor C. Reciprocating factor D. Recurring factor 2 / 25 2. Find the R.F. for scale, 1cm = 5 m A. 1/5 B. 1/50 C. 1/500 D. 1/5000 3 / 25 3. The representative fraction 1/2500 means that the scale is A. 1cm= 0.25 m B. 1cm=2.5 m C. 1cm=25 m D. 1 cm= 25 km 4 / 25 4. Which of the following are not sources of errors? A. Instrumental B. Personal C. Natural D. Artificial 5 / 25 5. A tape may be too long or an angle measuring instrument may be out of adjustment. Then such type of error comes under which source of error? A. Instrumental B. Personal C. Natural D. Artificial 6 / 25 6. The difference between a measurement and the true value of the quantity measured is A. True error B. Discrepancy C. Limit of error D. Accuracy 7 / 25 7. The systematic errors A. Are always positive B. Are always negative. C. May be positive or negative D. Have same sign as the gross errors. 8 / 25 8. The type of error which are of cumulative in nature and be corrected is known as A. Permissible error B. Expected error C. Residual error D. Systematic error 9 / 25 9. The positive error makes the measured distance A. less B. more C. Both D. None of the above 10 / 25 10. When the measured length is more than the actual length, the error is known as A. positive error B. negative error C. compensating error D. instrumental error 11 / 25 11. When the measured length is less than the actual length, the error is known as A. positive error B. negative error C. compensating error D. instrumental error 12 / 25 12. When the length of chain used in measuring distance is longer than the standard length, the error in measured distance will be A. positive error B. negative error C. compensating error D. none of these 13 / 25 13. The errors which are not possible to be corrected is A. Positive error B. Negative error C. Compensating error D. none of the above 14 / 25 14. Theory of probability is applied to A. Gross errors B. Systematic errors. C. Random errors. D. All the above 15 / 25 15. One of the characteristics of random errors is that A. Small errors occur as frequently as the large errors B. Plus errors occur more frequently than the negative errors. C. Small errors occur more frequently than the large errors D. Large errors may occur more frequently. 16 / 25 16. Theory of probability is applied to A. Cumulative error B. Accidental error C. Compensative error D. None of the above 17 / 25 17. Investigation of observations of various types shows that accidental errors follow a definite law. This law is called A. Law of probability B. Law of recurrence C. Law of precise D. Law of accuracy 18 / 25 18. The adjusted value of an observed quantity may contain A. Small gross errors B. Small systematic errors C. Small random errors D. All the above. 19 / 25 19. Maximum allowable limit upto that a measurement may vary from the true value is called : A. Permissible error B. residual error C. Expected error D. Safe error 20 / 25 20. The correction for sag is A. always additive B. always subtractive C. always zero D. sometimes additive and sometimes subtractive 21 / 25 21. The formula for correction for temperature is A. C = α (Tm – Ts) L B. C = α (Tm – Ts) + L C. C = α (Tm + Ts) L D. C = α (Tm – Ts) / L 22 / 25 22. When (h) is the difference in heights between the extremities of a chain length (l), then the correction for slope required is A. -h / l B. h² / l C. -h² / 2l D. -h / el 23 / 25 23. The length of a line measured with a 30 m chain was found to be 350 m. calculate the true length of the line if the chain was 15 cm too long. A. 352.50 m B. 351.75 m C. 325.25 m D. 321.25 m Solution: chain length (L) =30m Incorrect length of the chain is (𝐿′) =30 + 15/100, =30.15 m. Measured length is =350 True length (L) = 𝐿’/𝐿* measured length Hence true length of the line is (L) =30.15/30×350 =351.75 m 24 / 25 24. The length of a survey line measures with a 20m chain was found to be 200m. When the chain was compared with a standard chain, it was found to be 10cm too long. The length of the line in ‘m’ is A. 201 B. 205 C. 25 D. 209 25 / 25 25. The area of a certain field was measured with a 30m chain and found to be 350sq.m. it was after wards detected that that the chain used was 15cm too short. What Is the true area of this field A. 349.50sq.m B. 358.50sq.m C. 346.50sq.m D. 360.50sq.m Solution: chain length (L) =30m Incorrect length of the chain is (𝐿′) =30 – 15/100, =29.85 m. Measured area =350sq.m True length (L) = (𝐿′/𝐿)² *measured length Hence true length of the line is (L) =(30.15/30)² ×350 =346.50 Your score is The average score is 60% 0% Restart quiz Exit loksewamcqmcq civilmcqcivilmock testpscsub engineersurveyupsc
