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The maximum frictional force which comes into play when a body just begins to slide over the surface of another body is known as
The mass moment of inertia of a solid sphere of radius 'r' about any axis passing through its centre of mass 'M' is
The total time taken for collision and restitution of two elastic bodies is called
The resultant of two forces P and Q (P>Q) dating along the same straight line but in the opposite direction is given by
For perfectly elastic bodies the value of coefficient of restitution is
The maximum acceleration of a body moving in SHM with angular velocity ,'ω' and amplitude "r" is
The unit mass-moment of inertia of a body is
A rigid body suspended at the top and vibrating with a small amplitude under the action of the force of gravity is known as:
If a body is in equilibrium under the action of 2 forces, then the forces must be
Moment of inertia of a semi-circular area of radius r about its base is
In a well conditioned triangle, no angle should be less than
The fundamental principle of surveying is to work from
The initial setting time for ordinary Portland cement is
At the magnetic poles, the amount of dip is
In the manufacture of cement, gypsum is added to
The instrument used to determine the areas of plots with curved boundaries is
A type of bond in brick masonry in which each course consists of alternate headers and stretchers is called
Compacting factor test is carried out on concrete to determine
Portland cement is manufactured by burning in a kiln the following materials
An obstacle which obstructs both chaining and vision is
If, As' is the area calculated by Simpson's rule and, A' that calculated by trapezoidal rule, then
The rise and fall system of calculating reduced levels of ground points in levelling work provides an arithmetical check on
The required slope correction for a chain line of length 60 m measured along a slope of 1 in 20 is
Work done in a free expansion process is
A thermodynamic cycle is irreversible and possible if
A device which works on Zeroth law of thermodynamics is
The change in entropy is zero during
For the same expansion ratio, work done by a gas in case of adiabatic process as compared to isothermal process is
In a polytropic process, the ratio of work to heat transfer is
In an Otto cycle the heat addition is assumed to be at:
The refrigerant in a refrigeration system will be at its highest temperature
The vertical distance between the centre line of the pump and water surface in the tank to which water is transferred is known as
The specific speed of a pump is defined as the speed of the pump which is working against a unit head
The possibility of negative slip in reciprocating pump is when
For the same tension and coefficient of friction, the type of belt which can transmit more power is
In sand moulding the bottom flask is called
A sprue is
The statement that the algebraic sum of currents meeting at a node is zero, is given by the law
Ohm's law is valid when the temperature of the conductor is
Four wires of equal length and of resistance 5 ohms each are connected in the form of a square. The equivalent resistance between two opposite corners of the square is
The transformer varies the output of
Which of the following is independent of the frequency of a.c ?
The varying magnetic field produces electric voltage in a conductor. This is known as
The a.c. cannot be used for
The current in the armature of d.c motor is the maximum when the motor is
Cage induction motor can be started using
Through which the ac circuit elements both the emf and current are in phase
Kayamkulam electric power station is
From the following select the motor which is not self starting
In Kerala commercially generating voltage(by KSEB ) is