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Mechanic grade 2 IKSRTC) Exam on December29 2015 ACE KARU NAGAPPALLY 7034199928, 9037199928, www.aceonJinebooks.com -

1 The part of an engine, which is attached below the crankcase is a~Oil pan bcylinder head c)cylinder block d)None of these

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2.Highly finished cylinder liners are ry lin ja~ders bwetlines cboth (a) and (b) d)both liners are semi-finished 3.The type fit used to insert liners in engine cylinder is aclearance fit b interference fit c transition fit d either (a) or (c) 4.The top of the piston is called a~piston crown bpiston skirt c piston pin boss d piston land

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5.When the compression height of a piston increases, then the compression ratio is a increases b decreases increases nor ~ c)neither decreases (d)none of these

63he material generally used for piston rings are a~aluminium alloy bnickel alloy c)alloy cast iron d)aluminium alloy containing magnesium and iron

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7.On the compression stroke the rings are pressed against a top of groove b bottom of groove c)inner side of groove d)all of these 8.The primary purpose of a ring expander is to a~make up for cylinder wear bincrease static ring tension ~ c)decrease dynamic ring tension (d)reduce ring vibration 9.ln full-floating type, the transverse movement of piston pin restricted by acirclips b gudgeon pin c cotter pin d none of these 10.The twisting and bending of crankshaft is restricted by a~crank pin bmain journal ~ c)crank web

(d)flywheel end of crankshaft 11.Crankshafts are manufactur ed by acarstiing b fogn g c either (a) or (b) d)welding

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12.The mainjournal diameter of a crankshaft is usually a75% of the cylinder bore b 50% of the cylinder bore c 25% of the cylinder bore d 30% of the cylinder bore 137he engine bearings should have aconformability b score resistance c corrosion resistance d all the above 14.ln actual case, exhaust valve opens abefore T.D.0 b before B.D.0 at B.D.0 d c atT.D.0 15.1f the valve opens before T.D.0 or B.D.0 is known as avalve lead b valve lag c valve overlap d valve lash

16.Stem diameter of exhaust valve is aless than inlet valve b greater than inlet valve c equal to inlet valve d either (b) or (c) 1 7.The inlet valves are arranged on cylinder head and exhaust valves are arranged on cylinder block,type of engine is aI-head engine b L-head engine c T-head engine d F-head engine 18.The link which reverse the direction motion in a valve mechanism is (a)push rod rocker arm tappet Rvalve spring ratio 1 9.Speed between camshaft and crankshaft is (a'rl :2 (btl :4 (cjl:3 (d52:1 20.Exhaust valve face angle is (a)30 (b)45 (c)40 (d)25 21.The most commonly used valve in an Automobile engine is

a poppet valve b sleeve valve c rotary valve d none of these 22.The numberof main bearings in a 6-cylinder engine is usually a5 b6 c7 d8

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23.How many times in a second does each valve on a four stroke engine running at 2400r.p.m open and close a 1000 b 1200 c20 d4800

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24.Camshaft bearing clearance varies from (a)0.05-0.lmm (b)0.05-0.125mm (c)0.1-0.3mm (d)0.001-0.008mm 25.The crankshaft bending should not generally exceed (a)0.008mm (b)0.08mm (c)0.8mm d)8mm 26.The percentage of energy loss due to friction in an engine cylinderis b)5% (a)10% (d)15% (c)7% 27.ln air cooling system the heat

Civil Engineering for AE KWA[13/02/161 SSC Junior EngiNeer(20/12/20151 Averseer C 4(exam on 19/01/161 ACE KARUNAGAPPALLY 7034199928, 9037199928, www.aceonIinebooks.com -

Surveying 1 .For setting out the ri9ht angles the instrument used is a)Optical square b Aboney level c Alidade d ~Ceylon ghat tracer 2. Refraction error is the least in case of a~ Stadia tacheometry btangential tacheometry Subtense bar tacheometry Omnimeters

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3.Which one of the following conditions requires geodetic surveying ? aHorizontal curve ranging b Vertical curve ranging c Survey of a country d Reconnaissance survey

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4. Which one of the following is carried out by two theodolie method ? a Circular curve ranging b Tacheometric survey C Geodetic survey d Astronomical survey

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5. Which one of the following not strictly a method of remote sensing ? (a) Thermal and multi spe ctural scannig b micro wave sensing c Earth resource satellite d Stereoscopy

(C) Anal

6. Which one of the following surveys employs alidade ? a Contour survey b Archeological survey c)Plane table uryey d)Reconnaissance survey 7.Which one of the following verniers is employed in Abney level ? a Retrograde vernier bDouble vernier c Double folded vernier d Extended vernier 8. Which of the following instruments can be used as clinometer? aPrism square b Line ranger c Abney level d Optical squre 9.Which one of the following instruments have both horizon glass and index glass ? Optical square Line ranger Box sextant 4,Pedometer Select the correct answer using the codes ven below ~la)2 '3anc!4 b 1,3and 4. c)l and 3 d 2 and 4 .

10. Which one of the following surveys is required in observations of stars ? Astronomical survey Cadastral survey

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survey (d)Photogrammetric survey

11 Triangulation station selected close to the main station for avoiding intervening obstruction is called aEccentric station b pivot station c Satellite station d Tie station

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then the elevation of the turning point will be Increased Decreased c Same d Either (a) or (b) 1 6.Toobserve the includedangle accurately ,method preferred is aRepetition t b Reieration c By defection angles d Double precision

12 The method of orientin9 a planetable with two inaccessible points is known as aIntersection b Resection c Back -sighting d Two -point problem

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The size of a theodolite I defined by (a) The diameter of the graduated circle of lower plate (b)The diameter ofthegraduated circle of upper plate c) The height of the theodolite d)The length of the telescope

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Removal of parallax may be achieved by (a )Refocussing the objective b Refocussing the eyepiece c Refocussing the eyepiece and objective (d)Moving the shifting centre 1 5.lfatripodsettingofatheodolite being used asa level, changes in the interval that elapses between taking a FS and a BS,

17. In open traversing which of the following methods is preferred ? a~ Method of direct angles b Method of extriour angles c Method of deflection angles d) Method of interior angles ,

18.The departure ofa line ofa traverse is its length multiplied by Co a-sine of reduced bearing b sine of reduced bearing ~ c Secant of reduced bearing (d)Tangent of reduced bearing 19 .The polar axis of Earth is shorten than equatorial axis by a 4295m b 9542m c)42.95km d) None of these 20. Negative errors are caused in chain, when its length is (a)more than the standard

length (b) Less than the standard length Equal to the standard length Any one of the 21 .Theerror duetobad raging is a Compensation b Cumulative positive c Cumulative negative d (b)and(c) 22.Method used for chaining on sloping ground is (a) By stepping method (b) By hypotensual allowance method C) By clinometer method d) (a) and (b) 23.Generally while chaining the arrow which accompany with one chain must be 2 Nos b 5Nos d 12 NOs 0lONos 243he linen tape reinforced with brass or copper wires to prevent stretching or twisting of fibres is called a Linen tape b Metallic tape c Invar tape d Cloth tape

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253he length of an engineer's chain should be ? (a)lOOft b60ft (c) 30m d 20m 26. Offsets are

dissipated depends upon a mass flow rate of air b surface area of metal into contact with air thermal conductivity of metal all the above

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28.While lapping a valve, the lapping compound is applied to its a face b stem c guide d tip 29.The width of the valve seat should not be kept more than 0.2mm (b)O.5mm 1 .2mm (d)5mm

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30.The type of muffler which increases the exhaust back pressure is (a)wave cancellation type (b)resonance type (c)baffle type (d)absorber type

Answers 1(a) 2(at 6c) 7(b5 11(c) 1(a) 15(a) 16(b) 19(a) 20(b) 23(c) 24(b) 27(d) 28(a)

3(b) 4(a) 5(a) 8(a) 9(a) 10(c) 13(d) 14(b) 17(d) 18(b) 21(a) 22(c) 25(b) 26(a) 29(c) 30(c)

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a Chain lines out of alignment b Small measurements from chain line (c)Measurementstaken in chain surveying (d) None of these (b)

27.When a chain is used at a temperature more than the atmospheric temperature it was calibrated the error in measured length will be a Cumulative bCompensating c Negative d Observational error

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28.Adiscrepancyisthedifference between a True value and error b Measured value and Actual value Two measured values of the same quantity None of the above

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29.As per Indian standard; the length of one link in 30m chain should be la30 cm b 20cm c 40cm d 10 cm 303he scale on which three dimensions can be measured is known as a Plain scale b Diagonal scale cChord scale d Vernier scale

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Answers la Sc 9(c) 13a 17c 21b 25a 29a

2(c) 6(d) lOa 14c 18b 22d 26c 30b

3c 7d 1(c) 15c 19c 23c 27a

4(a 8(c 12d 16a 20a 24b 28c

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