A. 10%
B. 20%
C. 30%
D. 40%
Correct Answer: 30% ✔
Last Updated: January 09, 2019
Related MCQs
- After storage, the strength of cement__________?
- The slump recommended for mass concrete is about__________?
- Addition of pozzolana to ordinary Portland cement increases__________?
- With increase in moisture content, the bulking of sand__________?
- According to IS specifications, the compressive strength of ordinary portland cement after three days should not be less than__________?
- Early attainment of strength in rapid hardening cement is mainly due to__________?
- For testing compressive strength of cement, the size of cube used is__________?
- The main constituent of cement which is responsible for initial setting of cement is__________?
- The main constituent which imparts hydraulicity to hydraulic lime is__________?
- Assertion A : Pure lime takes a long time to develop adequate strength. Reason R : Pure lime has slow hardening characteristics. Select your answer according to the coding system given below ?
- Study the following statements. (1) Hydraulic lime is suitable for white washing, (2) Fat lime is suitable for whitewashing, (3) Hydraulic lime is suitable for making mortar, (4) Fat lime is suitable for making mortar. The correct answer is__________?
- As per IS specifications, the maximum final setting time for ordinary Portland cement should be__________?
- The constituent of cement which is responsible for all the undesirable properties of cement is__________?
- The initial setting time for ordinary Portland cement as per IS specifications should not be less than__________?
- Le Chatelier’s device is used for determining the__________?
- The main ingredients of Portland cement are__________?
- Hydraulic lime is obtained by__________?
- Glazing is used to make earthenware__________?
- Quick lime is (1) slow in setting (2) rapid in slacking (3) good in strength The correct answer is__________?
- Quick lime is__________?
- Number of bricks required for one cubic metre of brick masonry is__________?
- Advantage of a clamp compared to a kiln for burning bricks is that__________?
- The frog of the brick in a brick masonry is generally kept on__________?
- Which of the following pairs gives a correct combination of the useful and harmful constituents respectively of a good brick earth ?
- Pug mill is used for__________?
- Which of the following bricks are used for lining of furnaces ?
- The internal size of mould used in brick preparation is__________?
- The process of mixing clay, water and other ingredients to make brick is known as__________?
- Which of the following ingredients of the brick earth enables the brick to retain its shape ?
- Excess of silica in brick earth results in__________?
- The nominal size of the modular brick is__________?
- The percentage of alumina in a good brick earth lies between__________?
- Percentage of silica in a good brick earth lies between__________?
- Excess of alumina in brick earth makes the brick__________?
- The age of a tree can be known by examining__________?
- Crushing strength of a first class brick should not be less than__________?
- The practical limit of moisture content achieved in air drying of timber is__________?
- The trunk of tree left after cutting all the branches is known as__________?
- Plywood is made by bonding together thin layers of wood in such a way that the angle between grains of any layer to grains of adjacent layers is__________?
- A first class brick when immersed in cold water for 24 hours should not absorb water more than__________?
- The main function of alumina in brick earth is__________?
- First class timber has an average life of__________?
- The plywood__________?
- Plywood has the advantage of__________?
- The moisture content in a well seasoned timber is__________?
- Assertion A : Shishum is used for decorative woodwork. Reason R : Shishum can be polished to an excellent finish. Select your answer according to the coding system given below ?
- Which of the following represents a metamorphic rock? (1) slate (2) shale (3) quartzite . The correct answer is__________?
- In which of the following directions, the strength of timber is maximum ?
- The disease of dry rot in timber is caused by__________?
- The radial splits which are wider on the outside of the log and narrower towards the pith are known as__________?
- Which of the following trees yields hard wood ?