ASSISTANT ENGINEER – MECHANICAL – SR FOR SC/ST – IRRIGATION

PROVISIONAL ANSWER KEY
Question Paper Code: 38/2015/OL
Category Code: 101/2015
Exam: Assistant Engineer Mechanical SR for SC ST
Medium of Question: English
Date of Test 31-12-2015
Alphacode A
Question1:-Who described the ‘Directive Principles’ as the ‘Novel Features of the Indian Constitution’?
A:-Dr. Rajendra Prasad
B:-Jawaharlal Nehru
C:-Sardar Vallabhai Patel
D:-Dr. B.R. Ambedkar
Correct Answer:- Option-D
Question2:-When the Right to Education Act (RTE) did come into force?
A:-On 1 April 2010
B:-On 4 August 2009
C:-On 15 April 2014
D:-On 1 January 2011
Correct Answer:- Option-A
Question3:-What was the name of Ship used by Vasco-da-Gama?
A:-H.M.S. Beagle
B:-Savo Gabriel
C:-Voyager
D:-Savo Plow
Correct Answer:- Option-B
Question4:-List out the odd one
A:-Malayala Rajyam
B:-Mathavicharana
C:-Keralolpathi
D:-Indian Antiquery
Correct Answer:- Option-D
Question5:-When did the Parliament pass the Right to Information Act?
A:-On 12 October 2005
B:-On 15 August 2005
C:-On 15 June 2005
D:-On 2 October 2005
Correct Answer:- Option-C
Question6:-Who is considered as the ‘Political Father’ of the Ezhavas?
A:-Kumaran Asan
B:-Dr. Palpu
C:-Sree Narayana Guru
D:-S. Shankar
Correct Answer:- Option-B
Question7:-The founder of ‘Vavoottu Yogam’
A:-Sree Narayana Guru
B:-Ayyankali
C:-Chattampi Swamikal
D:-Swami Vagbhatananda
Correct Answer:- Option-A
Question8:-At which place Brahmananda Sivayogi founded the Sidhasramam?
A:-Aluva
B:-Sivagiri
C:-Alathur
D:-Alappuzha
Correct Answer:- Option-C
Question9:-What was the name of the system introduced by Chavara Achan for making free education available for
everyone?
A:-Padikkirikkal
B:-Pallikudam
C:-Kadannirikkal
D:-Thripadithanam
Correct Answer:- Option-B
Question10:-In which year Vakkom Abdul Khader Moulavi started his New Paper ‘Swadeshabhimani’?
A:-1904
B:-1903
C:-1906
D:-1905
Correct Answer:- Option-D
Question11:-What was the name of the News Paper started by Sahodaran Ayyappan?
A:-Velakkaran
B:-Bhojanam
C:-Sangabhodam
D:-Yachana
Correct Answer:- Option-A
Question12:-Who was the author of ‘Paalazhimadhanam’?
A:-Sree Narayana Guru
B:-Ayyankali
C:-Kunchan Nambiyar
D:-Ezhuthachan
Correct Answer:- Option-C
Question13:-Who wrote the work ‘Jathikummi’?
A:-Kumaranasan
B:-Chavara Achan
C:-Poikayil Yohannan
D:-Pandit Karuppan
Correct Answer:- Option-D
Question14:-What was the name of the first Arakkal Bibi?
A:-Arakkal Bibi Fathima
B:-Ali Raja Bibi Harrabichi Kadavul
C:-Arakkal Bibi Ayisha
D:-Ali Raja Bibi Khadeeja
Correct Answer:- Option-B
Question15:-Who authored the pamphlet ‘Thiruvithamkoor for Tiruvithamkoorian’?
A:-T.K. Madhavan
B:-G.P. Pillai
C:-P. Ranga Rao
D:-N. Raman Pillai
Correct Answer:- Option-B
Question16:-Who led the ‘Pattini Jatha’ from Kannur to Madras in 1936?
A:-E.M.S. Namboothirippad
B:-K. Kelappan
C:-A.K. Gopalan
D:-C. Kesavan
Correct Answer:- Option-C
Question17:-The Kerala Kalamandalam was founded by whom?
A:-Vallathol Narayana Menon
B:-G. Sankara Kurup
C:-S.K. Pottakkad
D:-Ulloor S. Parameswara Iyyer
Correct Answer:- Option-A
Question18:-Who was known as the ‘Jhansi Rani of Travancore’?
A:-Anna Chandi
B:-Arya Pallam
C:-A.V. Kuttimalu Amma
D:-Akkamma Cheriyan
Correct Answer:- Option-D
Question19:-The Nobel Prize in Physics in 2015 was awarded to whom?
A:-Isamu Akasaki and Shuji Nakamura
B:-Eric Betzig and William E. Moerner
C:-Takaaki Kajita and Arthur B. MacDonald
D:-Stephen W. Hell and Hiroshi Amano
Correct Answer:- Option-C
Question20:-What is the name of the mission which aims to achieve full immunisation coverage for all children in the
country by 2020?
A:-Mission Indradhanush
B:-Make India
C:-Bal Swachata Mission
D:-AYUSH Mission
Correct Answer:- Option-A
Question21:-Gas turbine works on
A:-Brayton cycle
B:-Rankine cycle
C:-Carnot cycle
D:-None of these
Correct Answer:- Option-A
Question22:-The melting point of mild steel is about
A:-1250°C
B:-1500°C
C:-850°C
D:-1750°C
Correct Answer:- Option-B
Question23:-The angle between the flanks of British Standard Whitworth (BSW) thread is
A:-1250°C
B:-47.5°C
C:-55°C
D:-60°C
Correct Answer:- Option-C
Question24:-Thermal efficiency of a simple gas turbine for a given turbine inlet temperature
A:-increases
B:-decreases
C:-first increases and then decreases
D:-remains the same
Correct Answer:- Option-D
Question25:-Which of the following parameters remains constant during adiabatic saturation process on unsaturated air?
A:-Dew point temperature
B:-Dry bulb temperature
C:-Wet bulb temperature
D:-Relative humidity
Correct Answer:- Option-C
Question26:-Queuing theory deals with problems of
A:-effective use of machines
B:-reducing the waiting time
C:-material handling
D:-none of these
Correct Answer:- Option-B
Question27:-Job evaluation is the method of determining the
A:-Contribution of a job
B:-Contribution of a worker
C:-Relative worth of jobs
D:-Skills required by a worker
Correct Answer:- Option-C
Question28:-Knocking tendency in an SI engine reduces with increasing
A:-Supercharging
B:-Wall temperature
C:-Compression ratio
D:-Engine speed
Correct Answer:- Option-D
Question29:-Which is not a part of magneto-ignition system?
A:-Condenser
B:-Battery
C:-Circuit breaker
D:-Induction coil
Correct Answer:- Option-B
Question30:-Superheating in a refrigeration cycle
A:-Decreases COP
B:-Increases COP
C:-COP remains unchanged
D:-Unpredictable
Correct Answer:- Option-A
Question31:-Change of resistance with intensity of light takes place in
A:-Photo-voltaic cell
B:-Photo-emissive cell
C:-Photo-conductive cell
D:-None of these
Correct Answer:- Option-C
Question32:-The diameter of a round bar with close tolerance is quickly measured by
A:-External micro meter
B:-Slip gauge
C:-Vernier caliper
D:-Snap gauge
Correct Answer:- Option-D
Question33:-In Electrolux refrigerator
A:-Ammonia evaporates in hydrogen
B:-Hydrogen evaporates in ammonia
C:-Hydrogen is absorbed in ammonia
D:-Hydrogen is absorbed in water
Correct Answer:- Option-A
Question34:-Free convection heat flow depends on all of the following except
A:-Coefficient of viscosity
B:-Velocity
C:-Density
D:-Gravitational force
Correct Answer:- Option-B
Question35:-Major constituents of satellite are
A:-Nickel, copper and zinc
B:-Zinc, lead and tin
C:-Cobalt, vanadium and nickel
D:-Cobalt, chromium and tungsten
Correct Answer:- Option-D
Question36:-Typewriter constitutes
A:-Structure
B:-Machine
C:-Inversion
D:-Mechanism
Correct Answer:- Option-D
Question37:-The equation PV=mRT is essentially valid for
A:-Perfect gas
B:-Real gas
C:-Monoatomic gas
D:-Mixture of gases
Correct Answer:- Option-A
Question38:-Cavitation in centrifugal pumps can be reduced by
A:-Throttling the discharge
B:-Increasing the flow velocity
C:-Reducing the discharge
D:-Reducing the suction head
Correct Answer:- Option-D
Question39:-In low carbon steels, the presence of small quantities of sulphur improves
A:-Formability
B:-Machinability
C:-Weldability
D:-Hardenability
Correct Answer:- Option-B
Question40:-Moment of inertia of a body does not depend on
A:-Axis of rotation of the body
B:-Mass of the body
C:-Angular velocity of the body
D:-Distribution of mass in the body
Correct Answer:- Option-C
Question41:-Which of the following does not pertain to inventory management?
A:-Production schedule
B:-State of merchandise
C:-Control of stock
D:-Effective running of stores
Correct Answer:- Option-A
Question42:-In value engineering, the term value refers to
A:-relation between productivity and cost
B:-market value
C:-relation between cost and efficiency
D:-relation between function and cost
Correct Answer:- Option-D
Question43:-The throttling operation in a refrigeration cycle is carried out in
A:-evaporator
B:-capillary tube
C:-discharge valve
D:-expansion valve
Correct Answer:- Option-B
Question44:-The amount of moisture in air can be measured by
A:-Sling psychrometer
B:-Mass spectrometer
C:-Photometer
D:-Thermistor
Correct Answer:- Option-A
Question45:-Which of the following is not a correct statement?
A:-The balls in a ball bearing remain in position due to centrifugal force
B:-Cage is made hardest of all parts in ball bearings
C:-Spherical roller bearings have the capacity for self-alignment
D:-Roller bearings have higher load capacity than that of ball bearings for a given overall size
Correct Answer:- Option-A
Question46:-Which of the following thermocouples can measure temperature in a comparatively higher range?
A:-Chromel-alumel
B:-Iron-constantan
C:-Iridium-rhodium
D:-Platinum-rhodium
Correct Answer:- Option-C
Question47:-Gears produced by die casting are generally used for
A:-high torque transmission
B:-light duty
C:-low temperature application
D:-high axial thrust transmission
Correct Answer:- Option-B
Question48:-The difference between the maximum material limits of mating parts is known as
A:-Deviation
B:-Clearance
C:-Allowance
D:-Tolerance
Correct Answer:- Option-C
Question49:-Trimming is the process associated with
A:-Forging
B:-Press work
C:-Polishing of metals
D:-Electroplating
Correct Answer:- Option-B
Question50:-A dead weight tester is used for
A:-accurate measurement of load
B:-producing high pressure
C:-testing the magnitude of given weight
D:-calibrating pressure measuring instruments
Correct Answer:- Option-D
Question51:-With the percentage increase of carbon in steel
A:-Brittleness of steel decreases
B:-Strength of steel decreases
C:-Ductility of steel decreases
D:-Hardness of steel decreases
Correct Answer:- Option-C
Question52:-The refrigerant used in commercial ice plant is
A:-Air
B:-Carbon dioxide
C:-Ammonia
D:-Freon-12
Correct Answer:- Option-C
Question53:-The process of discovering and identifying the pertinent information relative to the nature of a specific job is
known as
A:-Job analysis
B:-Job description
C:-Job classification
D:-Job identification
Correct Answer:- Option-A
Question54:-Plug rolling is used to
A:-produce seamless tube
B:-reduce wall thickness and increase diameter of tubes
C:-produce collapsible tubes
D:-increase wall thickness of tubes
Correct Answer:- Option-B
Question55:-A circular shaft can transmit a torque of 5 kNm. If the torque is reduced to 4 kNm, then the maximum value of
bending moment that can be applied to the shaft is
A:-1 kNm
B:-2 kNm
C:-3 kNm
D:-4 kNm
Correct Answer:- Option-C
Question56:-Which of the following is not a scalar quantity?
A:-Mass
B:-Volume
C:-Time
D:-Acceleration
Correct Answer:- Option-D
Question57:-Kinematic viscosity is equal to
A:-Density/dynamic viscosity
B:-Dynamic viscosity/density
C:-Dynamic viscosity × density
D:-None of these
Correct Answer:- Option-B
Question58:-A boiler shell 200 cm diameter and plate thickness 1.5 cm is subjected to internal pressure of `”1.5 MN/m^2″` .
Then the hoop stress will be
A:-`”50 MN/m^2″`
B:-`”30 MN/m^2″
C:-`”100 MN/m^2″
D:-`”200 MN/m^2″
Correct Answer:- Option-C
Question59:-The cutting tool in a milling machine is mounted on
A:-Tool holder
B:-Arbor
C:-Column
D:-Spindle
Correct Answer:- Option-B
Question60:-Fusible plug is fitted in a boiler to
A:-extinguish fire in case of low water level
B:-prevent leakage of steam from boiler
C:-allow passage of only super heated steam from the boiler
D:-keep the boiler pressure within the prescribed limits
Correct Answer:- Option-A
Question61:-Which of the following is an amorphous material?
A:-Lead
B:-Rubber
C:-Mica
D:-Glass
Correct Answer:- Option-D
Question62:-Which of the following is used for bearing liner?
A:-Bronze
B:-Babbit metal
C:-Gun metal
D:-Brass
Correct Answer:- Option-B
Question63:-The weight of oxygen in atmospheric air is
A:-21%
B:-19%
C:-23%
D:-31%
Correct Answer:- Option-C
Question64:-A Pelton wheel turbine is ideally suited for
A:-High head and low discharge
B:-High head and high discharge
C:-Low head and low discharge
D:-Medium head and medium discharge
Correct Answer:- Option-A
Question65:-Which of the following is not the part of a shaper?
A:-Ram
B:-Table
C:-Cross slide
D:-Clapper box
Correct Answer:- Option-C
Question66:-Which of the following materials require the largest size of riser for the same size of casting?
A:-Cast iron
B:-Aluminium
C:-Steel
D:-Copper
Correct Answer:- Option-A
Question67:-On a psychrometric chart, the relative humidity lines are represented by
A:-uniformly spaced inclined lines
B:-uniformly spaced horizontal lines
C:-non-uniformly spaced inclined lines
D:-curved lines
Correct Answer:- Option-D
Question68:-The mathematical technique for finding the best use of limited resources in an optimum manner is known as
A:-Queuing theory
B:-Linear programming
C:-Operation research
D:-Network analysis
Correct Answer:- Option-B
Question69:-Rate of change of momentum takes place in the direction
A:-of applied force
B:-of motion
C:-opposite to the direction of applied force
D:-perpendicular to the direction of motion
Correct Answer:- Option-A
Question70:-Lean air-fuel mixture is required for
A:-acceleration
B:-idling
C:-starting
D:-cruising
Correct Answer:- Option-D
Question71:-A 100 cc engine has the following parameter as 100 cc
A:-cylinder volume
B:-clearance volume
C:-swept volume
D:-full tank capacity
Correct Answer:- Option-C
Question72:-Which of the following has maximum malleability?
A:-Lead
B:-Brass
C:-Wrought iron
D:-Aluminium
Correct Answer:- Option-A
Question73:-The ratio of actual damping coefficient to the critical damping coefficient is called as
A:-Magnification factor
B:-Damping factor
C:-Critical damping ratio
D:-Logarithmic decrement
Correct Answer:- Option-B
Question74:-Dehumidification is the process of removing moisture from air with dry bulb temperature
A:-decreasing
B:-increasing
C:-changing in any direction
D:-Remaining constant
Correct Answer:- Option-D
Question75:-Centrifugal pump is started with its delivery valve
A:-Kept fully closed
B:-Kept fully open
C:-Kept 50% open
D:-None of these
Correct Answer:- Option-A
Question76:-Bending operation should be performed
A:-At 30° to the grain direction
B:-Parallel to the grain direction
C:-There is no such criteria
D:-At right angle to the grain direction
Correct Answer:- Option-D
Question77:-De Lavel turbine is a
A:-simple impulse turbine
B:-multistage turbine
C:-simple reaction turbine
D:-velocity compounded impulse turbine
Correct Answer:- Option-A
Question78:-The refrigerant R-744 is
A:-ammonia
B:-freon-12
C:-carbon dioxide
D:-sulphur dioxide
Correct Answer:- Option-C
Question79:-The most flexible criteria for analysing an economic investmet is
A:-rate of return criteria
B:-salvage value
C:-present value method
D:-future value method
Correct Answer:- Option-B
Question80:-Which of the following represents a group incentive plan?
A:-Rowan plan
B:-Bedaux plan
C:-Halsey premium plan
D:-Scanlon plan
Correct Answer:- Option-D
Question81:-Indicated results are most accurate when the pointer in the analogue read out system lies
A:-around the mid-third of the scale
B:-in the first quarter of the scale
C:-in the second quarter of the scale
D:-around the full capacity of the scale
Correct Answer:- Option-A
Question82:-In a gas turbine cycle, the turbine output is 600 kJ/kg, the compressor work is 400 kJ/kg and the heat supplied is
1000 kJ/kg. The thermal efficiency of the cycle is
A:-60%
B:-40%
C:-20%
D:-80%
Correct Answer:- Option-C
Question83:-Collapsible toothpaste tubes are manufactured by
A:-Cupping
B:-Extrusion
C:-Cold rolling
D:-Deep drawing
Correct Answer:- Option-B
Question84:-A large clearance volume in a reciprocating compressor results in
A:-lower suction pressure
B:-increased volume flow rate
C:-reduced volume flow rate
D:-lower delivery pressure
Correct Answer:- Option-D
Question85:-The speed variation of the engine caused by the fluctuations of engine turning moment is controlled by
A:-Flywheel
B:-Throttle valve
C:-Governor
D:-D-slide valve
Correct Answer:- Option-A
Question86:-If the tearing efficiency of a riveted joint is 60%, then the ratio of pitch of diameter of rivet is
A:-0.20
B:-0.33
C:-0.40
D:-0.50
Correct Answer:- Option-C
Question87:-A bench vice has the following type of thread
A:-metric thread
B:-acme thread
C:-buttress thread
D:-square thread
Correct Answer:- Option-B
Question88:-All the thread characteristics can be measured precisely with
A:-Thread gauge
B:-Screw pitch gauge
C:-Micrometer with anvil
D:-Tool room microscope
Correct Answer:- Option-D
Question89:-A body cooling from 80°C to 70°C takes 10 minutes when left exposed to environmental conditions. If the body
is to cool further from 70°C to 60°C under the same external conditions, it will take
A:-more than 10 minutes
B:-same time of 10 minutes
C:-less than 10 minutes
D:-none of these
Correct Answer:- Option-A
Question90:-Which of the following is considered as comfort condition in air-conditioning?
A:-15°C DBT and 40% RH
B:-20°C DBT and 60% RH
C:-25°C DBT and 70% RH
D:-None of these
Correct Answer:- Option-B
Question91:-Mechanical strain gauges can measure
A:-static and dynamic strains
B:-dynamic strains only
C:-static strains only
D:-static and quasi-static strains
Correct Answer:- Option-D
Question92:-Efficiency of chimney draught is of the order of
A:-less than 1%
B:-2-3%
C:-5-6%
D:-8-10%
Correct Answer:- Option-A
Question93:-A step cone pulley is provided on a lathe to
A:-reverse the direction of spindle rotation
B:-change the spindle speed
C:-drive the lead screw
D:-give desired direction of movement of lathe carriage
Correct Answer:- Option-B
Question94:-Loam sand comprises of
A:-40% of clay and 10% moisture
B:-50% of clay and 10% moisture
C:-80% of clay and 20% moisture
D:-50% of clay and 18% moisture
Correct Answer:- Option-D
Question95:-In tool signature, nose radius is indicated
A:-in the middle
B:-in the beginning
C:-not indicated
D:-at the end
Correct Answer:- Option-D
Question96:-The primary tool force used in calculating the total power consumption in machining is
A:-radial force
B:-frictional force
C:-tangential force
D:-axial force
Correct Answer:- Option-C
Question97:-The brazing process is carried out in the temperature range
A:-60-150°C
B:-350-500°C
C:-180-250°C
D:-600-750°C
Correct Answer:- Option-B
Question98:-Steel balls are manufactured by
A:-casting
B:-sintering
C:-cold heading
D:-machining
Correct Answer:- Option-C
Question99:-Process of austempering results in the formation of
A:-Bainite structure
B:-Martensitic structure
C:-Carburized structure
D:-None of these
Correct Answer:- Option-A
Question100:-Which of the following has no unit?
A:-Surface tension
B:-Kinematic viscosity
C:-Strain
D:-Bulk modulus
Correct Answer:- Option-C