Most of the oxy-acetylene welding is done with
If there are no externally induced flow velocities, then the Nusselt Number (Nu) does not depend upon
If the depth of water in an open channel is greater than the critical depth, the flow is called
A process, in which the gas is heated or expanded in such a way that the product of its pressure and volume remains constant , is called
The fuel mostly used in cement industry and in metallurgical processes is
The maximum frictional force , which comes into play , when a body just begins to slide over the surface of the surface of the other body, is known as
In are welding , the temperature of heat produced by the elcetric are is of the order of
Transverse fillet welds are designed for
As the number of cylinders on multi cylinder engines increases the power to weight ratio
In a Diesel engine, during combustion the pressure may increase at a range of
A beam supporting a uniformly distributed load over its entire length L is pinned at one end and passes over a roller support at a distance x from the other end . The value of x such that the greatest bending moment in the beam is as small as possible, will be
The cavitation in a hydraulic machine is mainly due to
The operation of making a cone -shaped enlargement of the end of a hole is known as
The columns whose slenderness ration is less than 80 , are known as
কোন রঙের কাপে চা তাড়াতাড়ি ঠাণ্ডা হয়?
কাঁদুনে গ্যাসের অপর নাম কী?
ওজোন স্তর বায়ুমণ্ডলের কোন স্তরে অবস্থিত?
বিশ্বব্রহ্মাণ্ডে সবচেয়ে বেশি প্রাপ্ত গ্যাস কোনটি?
কোন যৌগটি কাপড়ের দাগ তুলতে সাহায্য করে?
অপটিক্যাল ফাইবারে আলোর কোন ঘটনাটি ঘটে?