Download Screening Exam. Paper JE-Mechanical 2018
This exam. Paper held on 20-05-2018. In this exam paper total 17o questions are asked which are 85 in marks.
Download JE -Mechanical Exam Paper
Ques:- When the molten metal id fed in the cavity of metallic mould by gravity the method of casting is known as
Ques:- A casting defect which occurs due to improper venting of sand is known as
Ans:- Blow holes
Ques:- Notching is the operation of
Ans:- Removal of metal to the desired shape from edge of a plate.
Ques:- A neutral flame is obtained by supplying
Ans:- Equal volume of oxygen and acetylene
Ques:- In fore hand welding the angle between the welding rod and the work is kept as
Ans:- 30 degree – 40 degree
Ques:- V- Block is used to
Ans:- Check the trueness of flat surfaces, Locate centre of round rods, Check surface roughness.
Ques:- A twist drill is specified by its
Ans:- Shank, material and diameter
Ques:- In shaper, the metal is removed duing
Ans:- Forward stroke
Ques:- EDM machining is applied for
Ans:- Shaping carbide dies and punches having complicated profile, Making large number of small holes in series and fuel nozzles , Embossing and engraving on harder materials.
Ques:- The work study is done by means of
Ans:- Stop watch
Ques:- The specific gravity of petrol is about
Ques:- Tachometer in a vehicle measures
Ans:- Engine r.p.m
Ques:- A hydraulic press is a device used
Ans:- To lift larger load by the application of a comparatively much smaller forces
Ques:- When absorvity = 1, reflectivity = 0 and tra`nsmittivity = 0, then the body is said to be a
Ans:- Black body
Ques:- An under in flated tyre will wear the thread most
Ans:- Near the edge
Ques:- The mechanical efficiency of an impulse turbine is the
Ans:- Ratio of actual work available at the turbine ti the energy imparted to the wheel.
Ques:- The efficiency of a reversible machine is
Ans:- More than 50%
Ques:- Streamlining of Automobile body is done to
Ans:- Minimize air resistance
Ques:- Engine is located in middle portion in some vehicles mainly to
Ans:- Better utilize the space
Ques:- The rolling resistance is because of the friction between the
Ans:- Tyre and road surface
Ques:- Comporession ratio of a petrol engine is nearly
Ans;- 8 : 1
Ques:- An engine has a clearance volume of 100 cm cube and a swept volume of 800 cm cube. The compression ratio is
Ans:- 9 : 1
Ques:- The frequency of flashing of light per minute in a direction (side turn) indicator is about
Ques:- Thinner is added to paint in order to
Ans:- Optimize its viscosity
Ques:- The brake pedal during ABS operation
Ans:- Transmits slight kickback to the drivers foot.
Ques:- The effect of vapour locking on the brake performance is that the
Ans:- Brakes fail completely
Ques:- The main function of master cylinder is to
Ans:- Convert brake pedal force into hydraulic pressure.
Ques:- The problems caused by the wheel imbalance are
Ans:- Steering wheel vibrations and uneven tyre wear.
Ques:- The basic purpose of providing caster angle on wheels is to
Ans:- Maintain directional stability.
Ques:- When the top of the wheel is titled outward, then it is called
Ans:- Positive Camber
Ques:- An over inflated tyre will wear the tread most near the
Ques:- The disadvantage of radial ply tyre compared to cross ply tyre is
Ans:- Uncomfortable ride at low speed.
Ques:- Another name for the steering link rod is
Ans:- Drag link
Ques:- Spring eyes in case of cars are usually lined with
Ans:- Rubber bushes
Ques;- The coil spring in wishbone suspension is placed between the
Ans:- Lower wishbone and cross member.
Ques:- Two speed reverse gear a`rrangement is generally provided in case of
Ques;- The maximum torque multiplication ratio in a torque converter is about
Ques:- A clutch is usually designed to transmit maximum torque which is
Ans:- 150 percent of the maximum engine torque.
Ques:- The maximum intensity of pressure which clutch facing can withstand without being damaged is about
Ans:- 100 kpa
Ques:- For aiming the head lights, the distance between the head lights and the screen should be
Ans:- 7.6 m
Ques:- The most commonly used car heater is the
Ans;- Hot water tyre
Ques:- A laminated glass when cracking
Ans:- Sandwiched layer traps the fragments.
Ques:- For measuring clearance between two flat surfaces the tool used is the
Ans:- Feeler gauge
Ques:- Ddometer is an instrument used for measurement of
Ques:- A square engine ia an engine having
Ans:- Bore and stroke equal
Ques:- On the compression stroke the rings are pressed against
Ans:- Bottom of groove
Ques:- A dish in the piston head is employed to
Ans:- Control compression ratio
Ques:- The purpose of piston rings is to control
Ans:- Combustion pressures, Cylinder wall lubrication, Oil consumption.
Ques:- The material used for inlet valve is usually
Ans:- Silico- chrome steel
Ques:- The valves have to be replaced if the metal to be removed for smoothening their end surfaces is more than
Ans:- 0.5 mm
Ques:- For checking the alignment of the crankshaft, the best method is to place it.
Ans:-On its ends
Ques:- Maximum allowable hydrocarbons in the car emission are approximately
Ans:- 100 PPM
Ques:- The position of the PCV valve plunger at idle speed is
Ans:- Towards the valve-outlet side.
Ques:- The material used for cylinder block are
Ans:- Cast iron and aluminium alloy
Ques:- Specific gravity of Diesel is about
Ques:- The cetane rating of diesel fuel is in the order of
Ques:- The function of a governor in automobiles is to
Ans:- Limit the vehicle speed
Ques:- The two rows of cylinders in a ‘V’ type engine are generally arranged at
Ans:- 60 degree
Ques:- The air gap between the central electrode and ground electrode of a spark plug is around
Ans:- 1 mm
Ques:- Which of the following oil is more viscous ?
Ans:- SAE 80
Ques:- The purpose of the thermostat is to keep the engine
Ans:- At desired temperature
Ques:- The fan in the Maruti Car is controlled
Ques:- The opening pressure of hole type nozzles varies from
Ans:- 17 – 34 m Pa
Ques:- Brake thermal efficiency for S.I. engine usually varies between
Ans:- 25% and 30%
Ques:- To increase output voltage, battery cells are connected in
Ques:-The negative plate of lead acid battery has
Ques:-Any short-circuits in the armature winding may be tested with a
Ques:-Robotic aircraft used extensively by the military is
Ques:- A rear horizontal stabilizer that that controls up and down or pitching motion of the aircraft nose is called
Ques:- Characteristic of the aircraft that permits you to maneuver it easily and allows it to withstand the stress resulting from the maneuver is known as
Ques:- The last point on an airfoil that interacts with the air flow around the wing is known as
Ans:- Trailing edge
Ques:- The horizontal line that passes through the centre of gravity of the aircraft perpendicular to its flight path is called
Ans:- Lateral axis
Ques:- The study or practice of travel through the air is called
Ques:- The study of forces and the resulting motion of objects through the air is called
Ques:- An aircraft that is designed to fly without an engine is
Ques:- Which of the following parameters has no effect on the inflow performance of a reservoir ?
Ans:-Production tubing diameter
Ques:- Which is not a cause of sand production ?
Ans:- Running casing
Ques:- Gas lift works mainly through
Ans:- Lowering bottom – hole pressure
Ques:- Which of the following does not change as a result of a well stimulation operation ?
Ans:- Ultimate well recovery
Ques:- Which of the following parameters need not to be considered when designing matrix acidizing treatment ?
Ans:- Formation closure stress
Ques:- The ignition quality of petrol is expressed by
Ans:- Octane number
Ques:- The fuels in order of decreasing knock tendency for spark ignition engines are
Ans:- Paraffin, napthene, aromatic
Ques:- Steam temperature control for the ESD boiler is achieved by
Ans:- Bypassing the superheater.
Ques:- Which of the following fuel oil impurities can cause maximum abrasive damage ?
Ans:- Catalytic Fines
Ques:- If an operating auxiliary boiler has a water pH reading of 7, you should
Ans:- Treat the water with caustic soda.
Ques:- Which term refers to a transverse curvature of the deck ?
Ques:- Thesite of Harappa is located on the bank of river
Ques:- Who among the following was a contemporary of Gautam Buddha ?
Ques:- The famous Khandariya Mahadev temple is located at
Ques:- Whose philosophy is called the Advaita ?
Ques:- The original name of Alauddin Khilji was
Ans:- Ali Gurshap
Ques:- Who after raising a successful rebellion, made Jahangir a captive in his own camp ?
Ans:- Mahabat Khan
Ques:- Goa was captured by the Portuguese in
Ques:- Who among the following first used the word ‘Swaeajya’ ?
Ans:- Bal Gangadhar Tilak
Ques:- The Continental Drift theory is given by
Ans:- Alfered Wegener
Ques:- As we proceed from equator to poles, the daily range of temperature tends to
Ques:- Which of the following is not a Baltic nation ?
Ques:- The vegetation which survives on aerial roots is
Ques:- Which one of the following does not have coal deposits ?
Ques:- Which one of the following is the oldest oil refinery in India ?
Ques:- Which one among the following peaks is the highest ?
Ques:-Which Indian city has the highest population, according to 2011 Census ?
Ques:-Which of the following places is not an iron-ore mining area ?
Ques:- Who of the following a`cted as the constitutional Advisor to the Constituent Assembly ?
Ques:- The words ‘Socialist’ and ‘Secular’ were added to our constitution by
Ans;- 42nd Amendment
Ques:- In which part of the constitution, details of citizenship are mentioned ?
Ques:- The term ‘Cabinet’ is mentioned in which of the following articles of the Constitution ?
Ans:- Article 352
Ques:- The system of Public interest Litigation has been introduce in India.
Ans:- By Judicial initiative.
Ques:- Ministers in a state get salaries as determined by
Ans:- State Legislature
Ques:- The executive power relating to concurrent subjects remain with the
Ques:- ‘Nirmal Gram Puraskar’ is related with
Ques:- What was the period of Plan Holiday ?
Ans:- 1956 – 61
Ques:- The Headquarters of SIDBI is located in
Ques:- Invisible export means export of
Ques:- What is the jeweller,s rouge ?
Ans:- Ferric oxide
Ques;- Mushrooms belong to
Ques:- Which among the following is the richest source of ascorbic acid ?
Ques;- INS Sardar Patel Naval base is located at
Ques:- The National Instituate of Ocean Technology is located at
Ques;- Which one of the following numbers is different from the rest ?
Ques:- As ‘Poster is related to ‘Wall’, in the same way, ‘ Photograph’ is related to :
Ques:- The number of Rajya Sabha seats from H.P. is
Ques:- Who was the first Chief Commissioner of H.P. ?
Ques:- Khajiar lake is located in which district of H.P. ?
Ques:- Great Himalayan National park is located in which district of H.P. ?
Ques:- Which Indian short film has recently won Best film Award at Best of India Short Film Festival in Los Angeles ?
Ques:- Which Indian para-athlete has recently secured the No. 1 rank in Asia in F 53 Javelin category ?
Ans:- Deepa Malik
Ques:- The 2018 Krishi Unnati Mela has started in which city ?
Ans:- New Delhi
Ques:- India’s first cloned Assamese buffalo male calf ‘Sach-Gaurav’ has born in which state ?
Ques:- The antonym of the word ‘Verbose’ is
Ques:- He…………….for her since morning.
Ans:- Has been waiting
Ques:- Meaning of the idiom ‘Wild cat strike’ is
Ans:- Strike not approved by the trade union
Ques:- The eye bolts are used for
Ans:- Lifting of heavy machine
Ques:- The parallel fillet weld is designed for
Ans:- Shear stress
Ques:- Two shafts will have equal strength if
Ans:- Angle of twist of both the shafts is same, material of both the shafts is same, twisting moment of both the shaft is same.
Ques:- Hook’s law holds good upto
Ans:- Elastic point
Ques:- A Concentrated load is one which
Ans:- Acts at a point on a beam
Ques:- When shear force is zero then the moment is………..at a point.
Ques:- If the slenderness ratio for a column is 100, then it is said to be a………………..
Ans:- Long column
Ques:- The type of space la“““““““““`ttice found in alpha-iron is
Ans:- Body centred cubic space lattice
Ques:- Which of the following process of steel making is in operation at Tata Iron and steel Works Jamshedpur ?
Ans:- Duplex Process
Ques:- The property of liquid by which offers resistance to the movement of one layer of a liquid over another adjacent layer of a liquid is called
Ques:- Force per unit length is the unit of
Ans:- Surface tension.
Ques:- The process generally used in summer air conditioning to cool and dehumidify the air is called
Ans:- Cooling and dehumidification
Ques:- In the psychometric chart, relative humidity lines are
Ans;- curved lines
Ques:- Mechanical efficiency of a centrifugal pump is the ratio of
Ans:- Energy available at the impeller to the energy supplied to the pump by the prime mover.
Ques:- One cubic metre of water weighs
Ans:- 1000 litre
Ques:- According to the Indian standards, a bolt thread of 6 mm size of coarse pitch and with allowances on the threads and normal tolerances grade is designated as
Ans:- M6 – 8d
Ques:- Traction control system in the automobile controls the
Ans:- Engine power during accrleration.
Ques:- Creep is the belt drive is due to
Ans:- uneven extension and contraction of the belt when it passes from tight side to slack side
Ques:- A spring controlled governor is said to be unstable when the controlling force
Ans:- increases as the radius of rotation increases
Ques:- A Hartnell governor is a
Ans:- Spring loaded governor
Ques:- Which of the following is the correct statement of second law of thermodynamics ?
Ans:- It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work.
Ques:- Otto cycle consists of
Ans:- Two constant volume and two isentropic processes.