Civil Engineering MCQs

Page No. 273

Which of the following is not used in measuring perpendicular offsets ?


aline ranger


bsteel tape


coptical square


dcross staff


View Answer line ranger

Cross staff is an instrument used for________________?


ameasuring approximate horizontal angles


bsetting out right angles


cmeasuring bearings of the lines


dnone of the above



If the length of a chain is found to be short on testing, it can be adjusted by______________?


astraightening the links


bremoving one or more small circular rings


cclosing the joints of the rings if opened out


d all of the above



Normal tension is that pull which_______________?


a is used at the time of standardising the tape


bneutralizes the effect due to pull and sag


cmakes the correction due to sag equal to zero


d makes the correction due to pull equal to zero



The permissible error in chaining for measurement with chain on rough or hilly ground is_____________?


a1 in 100


b1 in 250


c1 in 500


d1 in 1000


View Answer 1 in 250

Which of the following angles can be set out with the help of French cross staff?


a45° only


b90° only


ceither 45° or 90°


dany angle


View Answer either 45° or 90°

The angle of intersection of the two plane mirrors of an optical square is______________?


a30°


b45°


c60°


d90°


View Answer 45°

During chaining along a straight line, the . leader of the party has 4 arrows in his hand while the follower has 6. Distance of the follower from the starting point is_____________?


a4 chains


b6 chains


c120 m


d180m


View Answer 6 chains

For a well-conditioned triangle, no angle should be less than______________?


a20°


b30°


c45°


d60°


View Answer 30°

The allowable length of an offset depends upon the______________?


adegree of accuracy required


bmethod of setting out the perpendiculars and nature of ground


cscale of plotting


dall of the above


View Answer all of the above

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