Match the following List - I with List -II:
Which one of the following is not the correct statement about control volume?
Match List - I with List -II the following:
Heat transferred to a closed stationary system at constant volume is equal to
The first law of thermodynamics is dQ= du+dw. (Where symbols have usual meaning) For a chemical system dw= pdv, but when the volume is constant, dv=0 and, dQ=du. So, under the condition of constant volume heat transferred is equal to the change in the internal Energy of the system.
It is desired to bring about a certain change in the state of a system by performing work on thesystem under adiabatic conditions.
Key concept in analyzing the filling of an evacuated tank is
In the vander waal’s equation, the unit of constant a is
An Open system is one in which
The specific heat of water is
Which of the following statement is correct ?
The....... states that changes of internal energy of a perfect gas is directly proportional to the change of temperature.
When gas is heated at constant pressure, the heat supplied is utilised in
Thermoelectric refrigeration system is based on
A reversible heat engine runs between high temperature T1 and low temperature T2. The work output of this heat engine is used to run a reversible refrigeration cycle absorbing heat at temperature T2. What is the COP of the combined system ?
Superheating in refrigeration cycle
A one tonner refrigerating machine means that
Hydrogen is used in electrolux refrigeration system so as to ....... the rate of evaporation ofthe liquid ammonia passing through the evaporator.
Engine of different cylinder dimensions, power and speed are compared on the basis of
Match the List-I (IC engine parts) with List-II (Materials) following :
When the engines are built to withstand the same thermal and mechanical stresses
The float in the carburetor of a petrol engine controls
In an I.C. engine, the process of removing the burnt gases from the combustion chamber of the engine cylinder is known as
The exhaust valve in a four stroke cycle petrol engine
Diesel as compared to petrol is
The crown of the fire box is made hemispherical in order to
Which of the following is not the desirable property of a good fuel?
Calorific value of gaseous fuels can be found be
Reheating of steam under ideal condition takes place at constant
Atomic number of an element in the periodic table represents the numbers of
Boiler water reactor employs
Match List-I (Turbine types) with List-II (Flow direction) the following:
Fire tube boilers are
Lancashire boiler is
The device attached to the steam chest for preventing explosions due to excessive internal pressure of steam is called
The condition of 'no slip' at boundaries is applicable to
The fluid which obey's the Newton's law of viscosity is called
Bourdon gauge measures
A curved surface is submerged in a static liquid. The horizontal component of pressure force on it is equal to
The metacenter is
For pipes, laminar flow occurs when Reynolds number is
The drag coefficient of laminar flow varies with Reynolds number (Re) as
The ratio of specific weight of a liquid to the specific weight of pure water at a standard temperature is called
The liquid used in manometers should have
If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in
A flow through a long pipe at decreasing rate is called
The total energy of a liquid particle in motion is equal to
Barometer is used to measure
Rupture stress is
The stress-strain curve for glass during tensile test would exhibit
The number of elastic constants for a completely anisotropic elastic material are
In terms of bulk modulus (K) and modulus of rigidity (G), the Poisson's ratio can be expressed
Torsion bars are in series
The Point of contra-flexure occurs only in
The property of a material by virtue of which it can be beaten or rolled into plates is called
A rod is enclosed centrally in a tube and the assembly is tightened by rigid washers. If the assembly is subjected to a compressive load, then
The volumetric strain is the ratio of the
The product of Young's modulus (E) and moment of inertia (I) is known as
Which of the following is the correct torsion equation ?
Match List-I with List-II:
a. Maximum normal stress theory
b. Maximum principal strain theory
c. Maximum shear stress theory
1. Mise's and Henkey's theory
2. Rankine's theory
3. St Venant's theory
4. Guest's Tresca's theory
A machine having an efficiency greater than 50%, is known as
The coefficient of restitution for inelastic bodies is
One joule is equal to
The rate of doing work in known as
Which one of the following graph represents Von-Mises yield criterion
Which of the following joint is commonly used for pipes carrying water at low pressure
In a gib and cotter joint, the gib and cotter are subjected to
The endurance of fatigue limit is defined as the maximum value of the stress which a polishedstandard specimen can without failure, for infinite number of cycles, when subjected to
Factor of safety for fatigue loading is the ratio of
In designing thick cylinders, the equation used is
Cast iron pipes are mainly used
Match the List -I (Kinematic pair) with List - II (Application)
The Grubler's criteria for planar mechanism is given by f = 3(n–1) –2j in the equation is
The instantaneous center of a slider moving in a curved surface lies
Coriolis component of acceleration is always
A Hooke's joint is used to connect two
The gear train usually employed in clocks is a
When the nature of contact between the elements of a pair is such that it can only slide relative tothe other, the pair is known as a
The minimum periodic time of a compound pendulum is
The height of a Watt's governor (in metres) is equal to
A hartnell governor is a
Which of the following materials requires highest shrinkage allowance ?
Which of the following casting mould uses metal moulds ?
Which of the following casting mould uses metal moulds ?
Warm metal working is applied extensively for
What does hydrostatic pressure in extrusion process improve ?
The main source of heat generation in metal cutting is
Size of a shaper is given by
Which of the following is an example of orthogonal cutting ?
Flux is used in soldering to
The phenomenon of weld decay occurs in
Which of the following material has maximum malleability ?
The iron ore mostly used for the production of pig iron is
Quenching is not necessary when hardening is done by
Age hardening is related to
During hot working of metals
Cold working of metal increases
Cores are used to
Which of the following welding process uses nonconsumable electrodes ?
Most of the oxy-acetylene welding is done with
The angle made by the face of the tool and the plane parallel to the base of cutting tool is called