ব্যাখ্যা: Eplained: The standard width of corrugated sheet is 85 cm. The two most common widths are 26 and 36 inches. উত্তর সহ কয়েকটি অনুরূপ গুরুত্বপূর্ণ প্রশ্ন 1. The standard width of ballast for M.G. track in Indian Railways, is kept-2.30 m 2. The correct relation between curve lead (CL), switch lead (SL) and lead of crossing (L) is given by-L=CL-SL 3. Pot sleepers are in the form of - Two bowls placed under each rail and connected together with a tie bar 4. Bending of rail ends due to loose packing under a joint and loose fish Bolts, is known - Hogging 5. In a shunting signal if the red band is inclined at 45° it indicates – Proceed

ব্যাখ্যা: উত্তর সহ কয়েকটি অনুরূপ গুরুত্বপূর্ণ প্রশ্ন 1. Intersection method of detailed plotting is most suitable for -Hilly areas 2. Economic height of a dam is the height corresponding to which - Cost of the dam per unit of storage is minimum 3. The uplift pressure on the face of a drainage gallery in a dam is taken as -Two-third of hydrostatic pressure at the plus one-third of hydrostatic pressure al heal 4. The most suitable material for the central impervious core of a zoned embankment type dam is -Clay mixed with fine sand 5. The major resisting force in a gravity dam is - Self- weight of lam