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- Question
The maximum percentage of chemical ingredient of cement is that of
Options- A. magnesium oxide
- B. iron oxide
- C. aluminium
- D. lime
- E. silica.
- Correct Answer
- lime
- 1. Bulking of sand is
Options- A. mixing of different sizes of sand particles
- B. mixing of lime with sand
- C. maximum water with sand
- D. swelling of sand when wetted. Discuss
- 2. The size of fine aggregates does not exceed
Options- A. 2.75 mm
- B. 3.00 mm
- C. 3.75 mm
- D. 4.75 mm
- E. 5.75 mm Discuss
- 3. Pick up the incorrect statement from the following:
Options- A. Workability of the concrete mix decreases with an increase in the moisture content
- B. Concrete for which preliminary tests are conducted, is called controlled concrete
- C. Bulking of sand depends upon the fineness of grains
- D. Concrete mix 1 : 6 : 12, is used for mass concrete in piers.
- E. All the above. Discuss
- 4. The bulk density of aggregates, depends upon
Options- A. shape
- B. grading
- C. compaction
- D. all the above. Discuss
- 5. 1.S.I. has specified the full strength of concrete after
Options- A. 7 days
- B. 14 days
- C. 21 days
- D. 28 days
- E. 35 days Discuss
- 6. Longitude of a place is the angular distance between the meridian of the place and
Options- A. the standard meridian
- B. the international date line
- C. that of Greenwich
- D. both (a) and (c) of above. Discuss
- 7. A nautical mile is
Options- A. one minute arc of the great circle passing through two points
- B. one minute arc of the longitude
- C. 6080 ft
- D. 1855.109 m
- E. all the above. Discuss
- 8. The scale of a tilted photograph of focal length f taken from an altitude H, along the plate parallel through principal point is
Options- A.
- B.
- C.
- D.
Discuss
- 9. The nearest star is so far away from the earth that the directions to it from two diametrically opposite points on the earth differs less than
Options- A. 0.01 second
- B. 0.001 second
- C. 0.0001 second
- D. none of these. Discuss
- 10. Pick up the incorrect statement from the following. High oblique photographs
Options- A. may have tilt up to 30°
- B. may include the image of the horizon
- C. may not include the image of the horizon
- D. none of these. Discuss
Concrete Technology problems
Search Results
Correct Answer: swelling of sand when wetted.
Correct Answer: 4.75 mm
Correct Answer: All the above.
Correct Answer: all the above.
Correct Answer: 28 days
Correct Answer: both (a) and (c) of above.
Correct Answer: all the above.
Correct Answer:
Correct Answer: 0.0001 second
Correct Answer: none of these.
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