SSC JE (Mechanical) Official Paper-II (Held On 06 Nov 2024) English

A.scorching steam B.pegging steam C.charging steam D.monochrome steam

A.Pit ot tube B.Diaphragm gauge C.Bernoulli's tube D.Switch gauge

A.Stirling cycle B.Vapour compression refrigerant cycle C.Brayton cycle D.Mollie r cycle

A.A is true but R is false B.Both A a and Rare a true C.A is false but R is true D.Both A and R are false

A.does not use a pump for water circulation B.uses a condenser for cooling C.working lise s grease as fluid D.uses a compressor for water circulation

A.Triple point B.Saturation point C.Critical point D.Superheated point

A.Otto cycle > F Petrol engines B.Diesel engines → Electric vehicles C.Carnot cycle →> Compressors D.Brayton 1 cycle → Chillers

A.It is a ratio of work done to ideal actual work done. B.It is a ratio of a actual volume to ideal volume required. C.It is a ratio of ideal volume to actual volume required. D.It is a ratio of is en tropic work done to a act u a work done.

A.Pin safety valve B.weight Dead safety valve C.Lever safety valve D.Spring loaded safety valve

A.A-2; B-3; C-1 B.A-2; B-1; C-3 C.A-1; B-3; C-2 D.A-3; B-1; C-2

A.Secondary refrigerant →> R 12 B.Secondary refrigerant →> R 1150 C.Secondary refrigerant → Brine D.Secondary refrigerant → F

A.buoyancy B.float ability C.acceleration D.specific gravity

A.kinetic forces B.lateral deviation C.longitudinal variation D.centrifugal forces

A.It has high rate of steam generation B.It requires high floor area. C.High room head is required for its installation due to the vertical design. D.It has high initial installation cost.

A.inversely, i inversely B.directly, directly C.directly, inversely D.inversely, directly

A.B razing Below $300^\circ$℃ B.Soldering Above $1500^\circ$C C.B razing →Above $1500^\circ$℃ D.Soldering Below $300^\circ$℃

A.[Diagram / Option 1] B.[Diagram / Option 2] C.[Diagram / Option 3] D.[Diagram / Option 4]

A.Both A and B are true B.Only C is true C.Only A is true D.Both A and are true

A.temperature, velocity B.pressure, dryness C.pressure temperature D.velocity, dryness

A.feed d valves B.chimneys C.conductors D.compressors

A.A-3; B-1; C-2 B.A-2; B-3; C-1 C.A-2; B-1; C-3 D.A-1; B-3; C-2

A.It is a ratio of sensible heat to total heat of the system. B.It is a ratio of total heat to usable heat of the system. C.It is a ratio of total heat to sensible heat of the system. D.It is a ratio of total heat to available heat of the system.

A.Brake Indicated p power= power + Friction power B.Indicated Brake power = power / Friction power C.Indicated Brake power power = Friction power D.Brake Indicated power = power - Friction power

A.Cochran boiler B.Locomotive boiler C.Babcock and Wilcox boiler D.Lancashire boiler

A.Buoyancy law B.Pascal's law C.Newton's law D.Archimedes ' principle

A.A-3; B-1; C-2 B.A-2; B-3; C-1 C.A-2; B-1; C-3 D.A-1; B-3; C-2

A.Hub B.Frame C.Spoke D.Rim

A.Diameter of the pipe B.Material type of the pipe C.Colour of the pipe D.Weight of the pipe

A.Forward curved vanes can handle high flow rates. B.[Diagram / Option 2] C.[Diagram / Option 3] D.Backward curved van he s can handle high flow rates.

A.flash point temperature B.fire temperature C.pour point temperature D.dew point temperature

A.Both statements are true B.t B is true Statement but Statement A is false C.Both statements are false D.Statement A is true but Statement B is false

A.A-2; B-3; C-1 B.A-1; B-2; C-3 C.A-2; B-1; C-3 D.A-1; B-3; C-2

A.fluid pressure B.volumetric pressure C.atmospheric pressure D.density

A.Only Statement C B.Only $ Statement A C.Only Statement B D.Only Statements and c

A.tubular core type, cellular core type B.tubular core type, reciprocating core type C.reciprocating type, rotating core core type D.rotating type, cellular core core type

A.Mechanical efficiency B.Hydraulic efficiency C.Machine efficiency D.Volumetric efficiency

A.Both A a and Rare a true B.A is false but R is true C.Both A and R are false D.[Diagram / Option 4]

A.Stainless steels are a type of alloy steels. B.Stainless steel contains s chromium. C.Stainless steels are a type of non-ferrous steels. D.Stainless steels are resistant to corrosion.

A.infinite: quantity B.vector quantity C.elemental quantity D.scalar quantity

A.Both statements are false B.t B is true Statement but Statement A is false C.Statement A is true but Statement B is false D.Both statements are true

A.due to e Lo SS enlargement B.Lo SS due to obstruction in pipe C.due to friction D.LOSS due to contraction

A.diagram B.h-s diagram C.p-v diagram D.t-h diagram

A.minor: loss B.resultant loss C.recording loss D.major loss

A.Ratio of actual discharge to theoretical discharge. B.Ratio of total discharge to leaked discharge. C.Ratio of theoretical discharge to total discharge. D.Ratio of theoretical discharge to actual discharge.

A.increase the volume of the refrigerant at constant entropy B.increase the temperature of the refrigerant at constant entropy C.increase the pressure of the refrigerant at constant entropy D.increase the velocity of the refrigerant at constant entropy

A.Only Statements and c B.Only $ Statement A C.Only Statement C D.Only Statement B

A.170 B.340 C.[Diagram / Option 3] D.677

A.weight B.viscosity C.density D.flow rate

A.adaptability B.transfer ability C.permeability D.viscosity

A.Critical point B.Triple point C.Saturation point D.Superheated point

A.viscosity B.ill umi nance C.potency D.[Diagram / Option 4]

A.[Diagram / Option 1] B.[Diagram / Option 2] C.[Diagram / Option 3] D.[Diagram / Option 4]

A.aluminium oxide B.sodium chloride C.manganese D.copper

A.Brayton cycle B.Diesel cycle C.Otto cycle D.Stirling cycle

A.A-2; B-1; C-3 B.A-1; B-3; C-2 C.A-3; B-1; C-2 D.A-2; B-3; C-1

A.lever valve B.pin check C.fusible plug D.steam trap

A.D/2 B.D/3 C.5 D/8 D.5 D/4

A.Both A a and B are true B.A is true but B is false C.A is false but B is true D.Both A and B are false

A.Turret la the B.Tool room la the C.Boiler room la the D.Bench la the

A.Hero's turbine B.Rate au turbine C.Curtis: turbine D.De-L aval turbine

A.FvO > First valve operation B.TDC → Top dead centre C.BDC > Burden dead core D.IVC→ In take valve corrosion

A.hermetically sealed B.com moh cased C.ergonomic ally tabulated D.hydrophobic ally crafted

A.A-2; B-3; C-1 B.A-1; B-2; C-3 C.A-1; B-3; C-2 D.A-3; B-1; C-2

A.fire tube; vertical; low pressure B.fire tube; horizontal; low pressure C.water tube; 1 horizontal; high pressure D.water tube; vertical; high pressure

A.Gas B.Mercury C.[Diagram / Option 3] D.Coal

A.Only B and are true B.Only A and are true C.AlI A, B and are true D.Both A and B are true

A.tachometer B.mano meter C.sine bar D.orifice meter

A.A-1; B-2; C-3 B.A-2; B-3; C-1 C.A-2; B-1; C-3 D.A-3; B-1; C-2

A.Net head is the e water level before tail race. B.Net head or effective the head head is t available at the inlet of the turbine. C.head is the effective head Gross after the water is delivered. D.head is the water level before Gross head race.

A.Both A and B are false B.A is true,, but B is false C.Both A and B are true D.A is false, but B is true

A.Density of the f fluid B.Surface roughness C.Colour of the fluid D.Weight of the fluid

A.Laminar flow B.Recoil flow C.Transient flow D.Turbulent flow

A.Tungsten electrode →> TIG welding B.Aluminium electrode →> Laser welding C.Mon el electrode → Friction stir welding D.Titanium electrode > Friction n welding

A.Plug B.Screw gauge C.Gun D.Vapor is er

A.Dwell Rise Dwell Return Dwell B.Rise Rise Rise C.Rise Return Rise D.Dwell Rise Return Dwell

A.Turbulent flow B.a minar flow C.Recoil flow D.Transient flow

A.Frictional losses are zero. B.Velocity of flow varies the cross across s section. C.Fluid is non viscous D.Fluid is incompressible.

A.Evaporator B.Governor C.Boiler D.Super heater

A.Cone clutch B.Dry clutch C.Cy clo id clutch D.[Diagram / Option 4]

A.It is caused by friction within a fluid. B.[Diagram / Option 2] C.It is the same as specific gravity. D.It is an defined as the fluid's resistance to deformation at a given flow.

A.product of blade efficiency It is the and nozzle efficiency. B.It is the addition of blade efficiency and nozzle efficiency. C.It is the ratio of blade efficiency to nozzle efficiency. D.It is the square of blade efficiency.

A.Venturi meter B.Orifice meter C.Piran i gauge D.Nozzle meter

A.Only B and are true B.Only A and are true C.Both A and B are true D.AlI A, B and are true

A.barometric pressure B.atmospheric pressure C.vacuum pressure D.mercury pressure

A.Water is a working fluid. B.in processes power cycles are internally irreversible. C.Air is considered an ideal gas. D.Steam is supplied at lower temperatures.

A.Positioning B.Steering C.Parting D.Governing

A.discharging Free orifices B.Drowned orifices C.Submerged d orifices D.Blocked d orifices

A.Venturi meter > Volume fan B.Casing g > Vo lute casing C.Friction Motor blades D.Piston Forward flow

A.heat t exchanger B.cooler C.expand er D.chiller

A.Refrigerator B.Condenser C.Compressor D.Boiler

A.All A, B and C B.Only A and C C.Only B and C D.Both A and

A.Prone position boiler B.Horizontal boiler C.Inclined boiler D.Vertical boiler

A.ratio of work done amount of heat to given B.ratio of volume compressed to amount of heat given C.ratio of work supplied to amount of work done D.ratio of work done to pressure released

A.old Francis turbine B.Francis turbine C.Kaplan turbine D.Pelton wheel

A.(2 h)/3 B.(4 h)/3 C.[Diagram / Option 3] D.(5 h)/3

A.A is true but R is false B.Both A a and Rare a true C.Both A and R are false D.A is false but R is true

A.Mixed flow turbine Francis s turbine B.Radial flow turbine> Kaplan n turbine C.Reaction turbine> Pelton wheel turbine D.Inward flow I turbine →> Fourneyron turbine

A.Reversible Isothermal Heat Addition B.Reversible Adiabatic Expansion C.Reversible Isobar ic: Condensation D.Reversible Isothermal Heat Rejection

A.Kg-S B.[Diagram / Option 2] C.Pa-m D.N-m

A.Vacuum pressure B.Absolute pressure C.Gauge pressure D.Barometric pressure