In a mechanism, the fixed instantaneous centres are those centres which September 13, 2025 by Admin remain in the same place for all configurations of the mechanism vary with the configuration of the mechanism moves as the mechanism moves, but joints are of permanent nature none of the above ✅ The correct answer is option A.
The process of removing metal by a cutter which is rotated against the direction of travel of workpiece, is called September 13, 2025 by Admin up milling down milling face milling end milling ✅ The correct answer is option A.
In n1 and n2 are the indices of compression for the first and second stage of compression, then the ratio of workdone on the first and second stages (W1/W2) with perfect intercoooing is given by September 13, 2025 by Admin ✅ The correct answer is option B.
The operation of bending a sheet of metal along a curved axis, is known as September 13, 2025 by Admin plunging notching slitting forming ✅ The correct answer is option D.
A good refrigerant should have September 13, 2025 by Admin high latent heat of vaporisation and low freezing point high operating pressures and low freezing point high specific volume and high latent heat of vaporisation low C.O.P. and low fre ✅ The correct answer is option A.
The horizontal and uniformly spaced lines on a psychrometric chart indicates relative humidity. September 13, 2025 by Admin Correct Incorrect ✅ The correct answer is option B.
The tool life is affected by September 13, 2025 by Admin depth of cut cutting speed feed all of these ✅ The correct answer is option D.
One molecule of oxygen consists of __________ atoms of oxygen. September 13, 2025 by Admin 2 4 8 16 ✅ The correct answer is option A.
The heat and work are mutually convertible. This statement is called __________ law of thermodynamics. September 13, 2025 by Admin Zeroth First Second ✅ The correct answer is option B.
The bending moment at the ends of a simply supported beam will be zero. September 13, 2025 by Admin Yes No ✅ The correct answer is option A.