Post : Mechanic Grade II
Department : State Farming Corporation of Kerala Limited
Category Code : 452/16
Qualification : Diploma in Mechanical Engineering or Equivalent qualification
Question Paper Code : 108/17
Date of Test : 20-09-2017
- Simplex method is the method used for
- Value analysis
- Linear programming
- Network analysis
- Work sampling
- Work done in free expansion is
- Zero
- Minimum
- Maximum
- Negative
- A cycle consisting of one constant pressure, one constant volume and two isentropic process is known as
- Carnot cycle
- Stirling cycle
- Otto cycle
- Diesel cycle
- The amount of heat required to raise the temperature of unit mass of gas through
one degree at constant volume, is called
- Specific heat at constant volume
- Specific heat at constant pressure
- Entropy
- Enthalpy
- A fluid is said to be ideal, if it is
- Incompressible
- Inviscous
- Inviscous and incompressible
- Inviscous and compressible
- The ability of the material to resist softening at high temperature is known as
- Creep
- Hot hardness
- Fatigue
- Super hardening
- Gantt chart is used for
- Inventory control
- Machine repair schedules
- Material handling
- Production schedule
- When acetylene volume is greater than oxygen volume, the flame obtained in gas welding is known as
- Carburizing flame
- Neutral flame
- Oxidizing flame
- Inner cone
- Projection welding is a
- Continuous spot welding process
- Arc welding process
- Process used for joining square bars
- Multi-spot welding process
- The algebraic difference between the maximum limit and basic size is called
- Fundamental deviation
- Actual deviation
- Upper deviation
- Lower deviation
- The compression ratio for petrol engine is
- 3 to 6
- 15 to 20
- 5 to 8
- 20 to 30
- Motion of the cam is transferred to the valves through
- Rocker arms
- Valve stems
- Pistons
- Camshaft
- The volumetric change of the fluid caused by a resistance is known as
- Adhesion
- Cohesion
- Volumetric index
- Compressibility
- The compression ratio of an IC engine is the ratio of
- Total cylinder volume to swept volume
- Swept volume to clearance volume
- Total cylinder volume to clearance volume
- Pressure after compression to that of before compression
- All fluids exerts
- Pressure in the direction of flow
- Pressure in the direction of force of gravity
- Equal pressure in X, Y, Z plane
- Equal pressure in all directions
Question Error
- Malleability of a material can be defined as
- Ability to recover its original form
- Ability to undergo large permanent deformation in compression
- Ability to undergo large permanent deformation in tension
- None of these
- The slow plastic deformation of metals under a constant stress in known as
- Creep
- Endurance
- Plastic deformation
- Fatigue
- Which of the following wage incentive plan guarantees minimum wage to worker and bonus is paid for fixed percentage of time saved?
- Gantt
- Rowan plan
- Halsey plan
- Emerson’s efficiency plan
- Mercury does not wet glass. This is due to property of liquid known as
- Adhesion
- Cohesion
- Surface tension
- Viscosity
- The processes occurring in open system which permit the transfer of mass to and from the system, are known as
- Non-flow processes
- Flow processes
- Adiabatic processes
- None of these
- The aim of value engineering is to
- Minimise the cost without change in quality of the product
- To determine the selling price of a product
- To find the depreciation value of a machine
- All of these
- Mild steel belongs to the following category.
- Medium carbon steel
- High carbon steel
- Alloy steel
- Low carbon steel
- The operation of producing cup shaped parts from flat sheet metal blanks by bending and Plastic flow of metal, is known as
- Squeezing
- Coining
- Drawing
- Planishing
- Segmental chips are formed during machining
- Mild steel
- High speed steel
- High carbon steel
- Cast iron
- Density of water is maximum at
- 0°C
- 0°K
- 20°C
- 4°C
- Which of the following is dimensionless?
- Specific gravity
- Specific weight
- Specific volume
- Specific speed
- Job evaluation is the method of determining the
- Value of overall production
- Worker’s performance on job
- Relative values of a job
- Worth of the machine
- The information provided by the oxygen sensor to the feedback control system is about the
- Air temperature
- Air-fuel ratio
- Air flow speed
- Exhaust gas volume
- The torque available at the contact between driving wheels and road is known as
- Tractive effort
- Clutch effort
- Brake effort
- None of these
- Isotropic materials are those which have the same elastic properties
- Stress induced in all directions
- Thermal properties in all directions
- Density throughout
- Elastic properties in all directions
- The bulk modulus of elasticity with increase in pressure
- Decreases
- Increases
- Remains constant
- Unpredictable
- Which of the following cycles uses air as the refrigerant?
- Ericsson
- Bell Coleman
- Stirling
- Carnot
- One ton of refrigeration corresponds to
- 80 kcal/min
- 50 kcal/min
- 80 kcal/hr
- 1000 kcal/day
- The moisture in a refrigerant is removed by
- Evaporator
- Safety relief valve
- Dehumidifier
- Driers
- In vapour compression cycle, the condition of refrigerant is high pressure saturated liquid
- Before entering the expansion valve
- Before passing through the condenser
- Before entering the compressor
- After passing through the condenser
Question Error
- Delta iron occurs at a temperature of
- Between 910°C and 1400°C
- Between 1400°C and 1539°C
- Above the melting point
- None of these
- Superconduction by metals is observed in the temperature range of
- Above 1000°C
- Above 100°K
- Above 100°C
- Below 100K
- Which of the following constituents of steel is softest and least strong?
- Austenite
- Ferrite
- Pearlite
- Bainite
- Ammonia – absorption refrigeration cycle requires
- Very little work input
- Zero work input
- Maximum work input
- Nearly same work input as for vapour compression cycle
- The main object of scientific layout is
- To minimize production delays
- To produce better quality products
- To utilize maximum floor area
- All of these
- The diagram which shows the correct crank positions corresponding to the opening and closing of the valves, is known as
- P-V diagram
- Valve timing diagram
- Indicator diagram
- Axial force diagram
- The operation of removing the trapped air from the hydraulic brake system is known as
- Trapping
- Cleaning
- Bleeding
- Tapping
- A Traction Control System (TCS) in automobiles controls
- Vibration on the steering wheel
- The torque that is transmitted by the tyres to the road surface
- Engine power during acceleration
- Stopping distance in case of emergency
- Expediting function consists in keeping watch on
- Flow of material and in case of trouble locate source of trouble
- Minimizing the delays
- Operators activity
- None of these
- Percent idle time for men and machines is found by
- Time study
- Method study
- Work sampling
- Work study
- In micro motion study, therblig is described by
- Micro motions
- An event
- An activity
- Standard symbol and colour
- Scavenging air in diesel engine means
- Air used for combustion sent under pressure
- Air used for forcing burned gases out of engine’s cylinder during the exhaust period
- Burned air containing products of combustion
- Air fuel mixture
- The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called
- Net efficiency
- Relative efficiency
- Overall efficiency
- Efficiency ratio
- The air standard efficiency of an Otto cycle compared to diesel cycle for the given compression ratio is
- More
- Same
- Less
- Unpredictable
- If the intake air temperature of IC engine increases, its efficiency will
- Unpredictable
- Remains same
- Depend on other factors
- Decrease
- An important characteristic of vapour absorption refrigeration system is
- Noisy operation
- Cool below 0°C
- Quiet operation
- Very little power consumption
Question Error
- Micro motion study involves following number of fundamental hand motions.
- 8 numbers
- 16 numbers
- 24 numbers
- 20 numbers
- If the radius of the wire stretched by a load is doubled, then its Young’s modulus will be
- Doubled
- Halved
- Remain unaffected
- Become four times
- Hooke’s law states that stress is directly proportional to strain up to
- Limit of proportionality
- Yield point
- Elastic limit
- Breaking point
- The unit of Young’s modulus is
- kg/cm
- N-m
- kg-m
- kg/cm2
- The property of the material which enables it to resist fracture due to high impact load is known as
- Toughness
- Resilience
- Strength
- Endurance
- Electric furnaces usually operate up to a temperature of
- 1000°C
- 2200°C
- 1700°C
- 5000°C
- Pit furnace can be used for the melting of
- Cast iron
- Brass
- Aluminium
- Any one of these
- Flux used in cupola furnace while melting cast iron is
- Limestone
- Molasses
- Coke slurry
- Any one of these
- The amount of draft required does not depend upon
- Moulding method
- Shape and size of the casting
- Material of the pattern
- None of these
- Stainless steel is so called because of its
- High strength
- Corrosion resistance
- Brittleness
- High ductility
- In white cast irons, carbon present as _________
- Graphite flakes
- Graphite nodules
- Carbon does not exist
- Cementite
- Usual casting method for making dental crowns
- Sand casting
- Investment casting
- Continuous casting
- Die casting
- Which one of the following saw is having a reinforcement strip (ri
on its back?
- Hand saw
- Tenon saw
- Coping saw
- Feat saw
- Which chisel should never be used with a mallet?
- Firmer chisel
- Gauge chisel
- Mortise chisel
- Paring chisel
- A two high rolling mill consists of two rollers which rotates
- At the same speed and in the same direction
- At the same speed but in opposite direction
- At different speed and in the same direction
- At different speed and in the opposite direction
- The flux commonly used in brazing is
- Zinc chloride
- Ammonium chloride
- Borax
- Rosin plus alcohol
- In arc welding, the temperature of heat produced by the electric arc is of the order of
- 3000°C to 4000°C
- 4000°C to 5000°C
- 5000°C to 6000°C
- 6000°C to 7000°C
- The operation of cutting of a flat sheet to the desired shape is called
- Blanking
- Shearing
- Piercing
- Punching
- Good surface finish and better dimensional accuracy can be achieved in
- Hot working
- Cold working
- Both Hot working and Cold working
- None of these
- Hot working process is the plastic deformation of metal which is carried out
- At temperature below the recrystallisation temperature
- At the melting temperature of the metal
- At temperature above the recrystallisation temperature
- None of these
- Principle of unit load state that
- Materials should be moved in lots
- One unit should be moved at a time
- Both Materials should be moved in lots and One unit should be moved at a time
- None of these
- Fork lift is used for
- Lifting and lowering
- Vertical transportation
- Both Lifting and lowering and Vertical transportation
- None of these
- Gas molecules that absorb thermal infrared radiation and are present in large quantity to change climate system are known as
- Alpha radiation
- Beta radiation
- Ozone gases
- Greenhouse gases
- The most efficient method of compressing air is to
- Adiabatically
- Isothermally
- Polytropically
- None of these
- What does the symbol ‘O’ imply in work study?
- Inspection
- Transport
- Operation
- Delay
- Axial flow pump is started with its delivery valve
- Fully closed
- Kept fully open
- Kept 50% open
- None of these
- Multistage centrifugal pump casing, the flow of water leaving the impeller, is
- Rectilinear flow
- Radial flow
- Free vortex motion
- None of these
- Connecting rods are generally of the following form.
- Forged round section steel
- Cast steel triangular section
- Forged square section
- Forged I section steel
- The molecules in a solid move
- In a random manner
- Back and forth like tiny pendulums
- In circular motion
- In a haphazard way
- Studies of Desert is
- Pedology
- Oncology
- Ophthalmology
- Eramotology
Question Error
- The river separates India as North and South
- Godavari
- Narmada
- Krishna
- Cauvery
- Name the Country which announced the withdrawal from the Paris Climate Agreement in 2017.
- U.K.
- China
- U.S.A.
- India
- The electricity project in Kerala which produced from waves is
- Vizhinjam
- Nallalam
- Kakkad
- Mankulam
- The first Five Year Plan was launched in the year of
- 1947
- 1950
- 1951
- 1952
- ‘Veenapoovu’ is written by
- Vallathol
- Kumaranasan
- Ullur
- O. N. V. Kuruppu
- Gandhiji’s remark “a post dated cheque on a crumbling bank” is regarding the proposal of
- Crips Mission
- Round Table Conference
- Quit India Movement
- Simon Commission
- KIIFB stands
- Kerala Industrial Investment Fund Board
- Kerala Infrastructure Investment Finance Board
- Kerala Industrial Infrastructure Fund Board
- Kerala infrastructure Investment Fund Board
- Name the Indian Prime Minister who unveiled the statue of Ayyankali at Kowdiar Square Thiruvananthapuram.
- Jawaharlal Nehru
- Lal Bahadur Shastri
- Manmohan Singh
- Indira Gandhi
- The First Uranium mining in India
- Halody
- Kolar
- Gaduguda
- Panna
Question Error
- The soil which suitable for Mangroves
- Peat Soil
- Alluvial Soil
- Red Soil
- Regular Soil
- The first Director General of Archeological Survey of India is
- Mortimer Wheeler
- Alexander Cunningharm
- John Marshal
- R. D. Banarjee
- ‘Nannans’ were the rulers of
- Ezhimalai
- Kochi
- Kozhikode
- Perumpadappu
- The total area of the lake ‘Sasthamkotta’ is
- 8 km2
- 6 km2
- 5 km2
- 4 km2
Question Error
- ‘Champions Trophy’ is associated with
- Hockey
- Cricket
- Football
- Chess
- The name of Dr. Palppu, the social reformer in Kerala is
- Ramachandran
- Kunhikkannan
- Padmanabhan
- Narayanan
- The National People’s Party was formed by
- Irom Sharmila
- Rajini Kant
- Chiranjeevi
- P. A. Sangma
- Which may be considered as the Heart and Soul of Indian Constitution?
- Directive Principles
- Fundamental Rights
- Preamble
- Human Rights
- India doesn’t share its boundary with which of the following countries?
- Bhootan
- Thailand
- Myanmar
- Afghanistan
- The Governor of the Reserve Bank of India is
- Urjit Patel
- Raghuram Rajan
- D. Subbarao
- Y. V. Reddy
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