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Two horizontal plates are placed one above the other at a distance of 2 cm, the space between them being filled with an oil of viscosity 15 poises. What is the shear stress in oil if the upper plate is moved with a velocity of 2 m/s?

Which of the following river training works is constructed on the upstream side of the diversion site to control the submergence of land due to rise in high flood level?

The command area of an irrigation canal is 4000 hectares. The intensity of irrigation of a crop is 70%. The crop requires 60 cm of water in 20 days, when the effective rainfall is recorded as 20 cm during that period. Assuming 20% losses, what is the duty at the head of the canal?

What should be the maximum aggregate crushing value used in concrete roads and pavements as per IS:383-1970?

Select the correct option related to the application of grade beams in building construction.

The following statements pertain to the roof truss.

1. In the case of a queen-post truss, the tie beam will be under tension while the straining beam and struts are under compression.

2. Due to the triangular structure of the King-post truss, the members are either under tension or compression.

Validate the statements as correct/incorrect and choose the correct answer.

A hollow shaft produces a torque of \( 10\text{ kN-m} \) at \( 120\text{ rpm} \). Find the power the shaft can transmit?

Identify whether the following statements related to concrete are true/false.

1. In principle, as the compaction factor increases, the slump decreases.

2. Slump and slump flow of concrete are both measured in mm or cm.

When the pressure between two points is measured using a mercury-water manometer, it shows a gauge difference of \( 400\text{ mm} \), as in the given figure. What will be the difference in pressure?

(Take the specific gravity of mercury as \( 13.6 \))

A steel rod \( 1\text{ m} \) long and \( 20\text{ mm} \times 20\text{ mm} \) in cross-section is subjected to a tensile force of \( 40\text{ kN} \). What is the elongation of the rod, if the modulus of elasticity for the rod material is \( 200\text{ GPa} \).