During the construction period, price variation clause in contracts, caters to:
Match List-I with List-II select the correct answer using the codes given below the lists:
List-I
A. Piece work contract.
B. Lump sum contract
C. Item rate contract.
D. Labour contract"
List-ll
1. Not practised in government
2. Payment made by detailed measurement of different items
3. Adopted for touildjngs, roads, bridges and electrical works
4. Petty works and regular maintenance work
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800 units of a certain item of stock are needed over each yearly period. The unit cost is 400 and the cost of each order is Rs. 150 carrying cost is 1.5%. The EOQ is
A construction concrete mixer of capacity 0.8 m3 is used and the mixer discharges the entire batch of concrete into a single hopper. The time per cycle may be taken for charging, mixing and discharging mixes as 1.6 minutes and lost time may be taken as 0.15 minutes. The number of batches per hour is equal to
Match List-I with List-ll and select the correct answer using the codes given below the lists;
List-I
A. Self-loading scraper
B. Narrowtread high pressure type
C. Supercharger
D. Gearratios
List-ll
1. Reduce loss in power
2. Rim pull management
3. Lower rolling resistance
4. Compromise between loading and hauling performances
The output Q of the earth moving equipment like excavators, shovels, loaders (where 'q' is production per cycle in m3 and ‘c’ is cycle time in seconds) is
For a given load rating, the operating radius of crane can be increased by
Which of the following are the disadvantages of non-tilting type concrete mixers?
1. They are not favoured when large sized aggregates are used.
2. Mixing of the concrete occurs through both rolling and pulling from buckets.
3. Content of fines is increased.
4. They are not easy to clean.
Select the correct answer using the codes given below.
Codes:
Match List-I (Type of cranes) with List-ll (Characteristic) and select the correct answer using the codes given below the lists:
List-I
A. Hydraulic crane
B. Electric overhead crane
C. Travelling bridge crane
D. Hammerhead crane
List-ll
1. Has legs moving on tracks laid on the floor
2. Has cantilever arms on both sides
3. Has the unique advantage that the boom length and the angle can be changed during operation
4. Has three -way motion in mutually perpendicular directions