Mock Test: SSC JE (ME)- 5

When a system is taken from state A to state B along the path A-C-B, 180 kJ of the heat flows into the system and it does 130 kJ of work (as shown in the figure below): 

How much heat will flow into the system along the path A-D-B if the work done by it along the path is 40 kJ?

A system while undergoing a cycle A-B-C-D- A has the values of heat and work transfers as given
in the table

The power developed in kW is, nearly,

In a throttling process, which one of the following parameters remains constant ?

At critical point the enthalpy of vaporization is

Joule-Thomson coefficient is defined as

The specific heat at constant volume is

When a system changes its state from one equilibrium state to another equilibrium state, thenthe path of successive states through which the system has passed, is known as

When the gas is cooled at constant pressure,

The polytropic index (n) is given by

In aqua-ammonia and Lithium -bromide water absorption refrigeration systems, the refrigerantsare respectively

The desirable property of a refrigerant is

The refrigerant used for absorption refrigerators working heat from solar collectors is mixture ofwater and

The maximum COP for the absorption cycle is given by (T_G = generator temperature T_C=environment temperature, T_E= refrigerated space temperature)

The coefficient of performance of a refrigeration working on a reversed Carnot cycel is 4. Theratio of the highest absolute temperature to the lowest absolute temperature is

In a petrol engine, the fuel supplied to the engine cylinder is mixed with required quanity of air andthe mixture is ignited with a

In a petrol engine, the mixture has the lowest pressure at the

The diameter of the cylindrical shell of a Lancashire boiler is about
 

The correct sequence of the given four cycles on T-s plane in figure 1, 2, 3, 4
(A) Rankine, Otto, Carnot and Diesel
(B) Rankine, Otto, Diesel and Carnot
(C) Otto, Rankine, Diesel and Carnot
(D) Otto, Rankine, Carnot and Diesel

The two reference fuels used for cetane rating are

The object of providing masked inlet valve in the air passes of compression ignition engines isto

List-I gives the different terms related to combustion while List-II gives the outcome of
the events that follows. Match List-I with List-II and select the correct answer using the codes given below the lists:

What is the main objective of supercharging of the engine?

Which of the following is boiler mounting?

Induced draught fans of a large steam generator have

Benson boiler is one of the high pressure boilers having

Which one of the following safety devices is used to protect the boiler when the water level fallsbelow a minimum level ?

A gas turbine works on which one of the following cycles?

The most commonly used moderator in nuclear power plants is

A device used to heat feed water by utilising the heat in the exhaust flue gases before leavingthrough the chimney, is known as

An air preheater

The object of producing draught in a boiler is

A piezometer tube is used only for measuring

When a body is placed over a liquid, it will sink down if

The Euler's equation for the motion of liquids is based upon the assumption that

The discharge over a right angled notch is

The unit power developed by a turbine is

The specific speed of a turbine is given by the equation

A turbine develops 10 000 kW under a head of 25 metres at 135 r.p.m. Its specific speed is

For 450 m head of water,...... shall be used.

Which one of the following is the bulk modulus K of a fluid? (Symbols is have the usual meaning)

An oil of specific gravity 0.9 has viscosity of 0.28 stokes at 38ºC. What will be its viscosity in Ns/m2?

If angle of contact of a drop of liquid is acute then

Resultant pressure of the liquid in case of an immersed body acts through with one of thefollowing?

A hydraulic jump occurs in a channel

The thermal or temperature stress is a function of

The total strain energy stored in a body is termed as

When a load on the free end of a cantilever beam is increased, failure will occur

Two simply supported beams 'A' and 'B' of same breadth and depth carries a central load W asshown fig. The deflection of beam 'B' will be ...... as that of beam 'A'.

The polar moment of inertia of a hollow shaft of outer diameter (D) and inner Diameter (d) is

Which one of the following expresses the total elongation of a bar of length L with a constant
cross-section of A and modulus of Elasticity E hanging vertically and subject to its own weight
W?

The number of independent elastic constants required to express the stress-strain relationshipfor a linearly elastic isotropic material is

If the ratio G/E (G= Rigidity modulus, E= Young's modulus of elasticity) is 0.4, then what is the valueof the Poisson ratio?

Match List – I (State of stress) with List -II (kind of loading) and select the correct answer using
the codes given below the lists

Auto-frettage is a method of

The maximum bending moment in a simply beam of length L loaded by a concentrated load W at
the midpoint is given by

In a beam of circular cross-section, the shear stress variation across a cross section is

The moment of a force

The term 'centroid' is

Moment of inertia of a hollow rectangular section as shown in fig. about X-X axis, is

The friction experienced by a body, when in motion, is known as

Which one of the following figures represents the maximum shear stress Theory or TRESCA
criterion?

A rotating shaft carrying a unidirectional transverse load is subjected to :

Removal of metal particles from the raceway of a rolling contact bearing is a kind of failure ofbearing known as

The resistance of fatigue of a material is measured by

The maximum shear stress theory is used for

The maximum normal stress theory is used for

Rankine's theory is used for

A ball is thrown upwards and it returns to the ground describing a parabolic path which of thefollowing remains constant ?

The number of instantaneous centres of rotation for a 10 link kinematic chain is

In a Kinematic chain, a quaternary joint is equivalent to :

Flywheel absorbs energy during those periods of crank rotation when

Figure given below shows a spring-mass system where the mass m is fixed in between tw3o
springs of stiffness S1 and S2. What is the equivalent spring stiffness?

The sensitivity of an isochronous governor is

When the elements of a pair are kept in contact by the action of external forces, the pair is saidto be a

In a single slider crank chain

The included angle for the V-belt is usually

For two governors A and B, the lift of sleeve of governor A is more than that of governor B, fora given fractional change in speed. It indicates that

Match List-I (Heat treatment) with List-II (Effect on the properties) and select the correct
answer using the codes given below the lists:

Match List-I (Name of material) with List-II (% Carbon range) and select the correct answer
using the codes given below the lists

'Tempering' of quenched martensitic steel is necessary to improve the

Resilience of a material becomes important when it is subjected to

Match List-I (Product) with List-II (Process of Manufacture) and select the correct answer
using the codes given below the lists :

List-I
A. Automobile piston in aluminium alloy
B. Engine crankshaft in spheroidal graphite iron
C. Carburettor housing in aluminium alloy
D. Cast titanium blades

List-II
1. Pressure die-casting
2. Gravity die-casting
3. Sand casting
4. Precision investment casting
5. Shell moulding

In gating system design, which one of the following is the correct sequence in which chokearea, pouring time, pouring basin and sprue sizes are calculated ?

In wire drawing process, the bright shining surface on the wire is obtained if one

Best position on crank for blanking operation in a mechanical press is

Which of the following materials is used in the manufacture of extrusion nozzles?

In oxy-acetylene gas welding, for complete combustion, the volume of oxygen required perunit of acetylene is

Oxyacetylene reducing flame is used while carrying out the welding on

In arc welding, arc is created between the electrode and work by 

Which one of the following is not used as abrasive material in grinding wheels ?

The cutting tool material required to sustain high temperature is

In arc welding, the temperature of heat produced by the electric arc is of the order of

The temperature of the inner luminous cone of neutral flame is about

Segmental chips are formed during machining

The type of tool used on milling machine andbroaching machine is