SAMPLE PAPER FOR HAL & DRDO Hi, This is kishore I have appeared for HAL AND DRDO Examination held on 7th February 2010 . Below are some of the questions which had appeared in the examination and I am providing for u on the memory basis so that it would give u an idea for exam preparation . My advice is just stick to the basic concepts thank All the Bessst
| 1 | Castiron is best welded by -______ |
| 2 | Reaming is done by ________ |
| 3 | Relation between circular pitch and diametrical pitch ________ |
| 4 | Internal energy is a function of ________ |
| 5 | COP of carnot refrigator ________ |
| 6 | Ignition quality is a measure of ________ |
| 7 | Which is not a casting defect (select out of 4 opions) |
| 8 | Heat pump is derived from which law________ |
| 9 | Milling cutter operates against________ cutter |
| 10 | PERT & BAR charts are used for ________ |
| 11 | Rocket works on the principle ________ |
| 12 | Heat transfer is related to which law________ |
| 13 | Micrometer does not consist of ________ (Select out of 4 options) |
| 14 | A fastener is specified by ________ |
| 15 | I law of thermodynamics deals with________ |
| 16 | Long columns may fail in ________ |
| 17 | Equivalent length for a beam with one fixed end free end ________ |
| 18 | The following are boiler accessories ____(Select out of 4 options |
| 19 | Funtion of fusible plug________ |
| 20 | A Bench vice has ________ threads |
| 21 | Knuckle threads transmits________ |
| 22 | Slip gauges are joined by ________ |
| 23 | Angle plate is always used with ________ |
| 24 | Chaplets are used for ________ |
| 25 | Riser is used for ________ |
| 26 | Sprue is meant for ________ |
| 27 | In blanking operation clearance is provided on ________ |
| 28 | Use of comperator________ |
| 29 | Thickness of sheet metal lies in the range of ________ |
| 30 | Tail stock is used for holding tools for performing ________ operations |
| 31 | Nose radius is indicated ________ in the tool signature |
| 32 | For cutting brass ________ coolent is requied |
| 33 | Knurling operators is used for ________ |
| 34 | The following is the stronget bond (Select out of 4 options |
| 35 | No. of links for a simple machine __________ |
| 36 | MIG uses __________electrode |
| 37 | Flux used for brazing __________ |
| 38 | A section having no joint __________ |
| 39 | Ratio of oxygen to Acetylene in neutral flame __________ |
| 40 | Cold working is carried out at __________ temperature |
| 41 | Carbide tips are joined by __________ |
| 42 | In SAW welding arc is produced between __________ |
| 43 | __________ is poorest conductor of electricity (Select out of 4 options |
| 44 | (Select out of 4 option __________ is not function of normalizing |
| 45 | Ornaments are made by __________ |
| 46 | Cheek is a __________ part of moulding box |
| 47 | Metal removal rate is more in __________ machining |
| 48 | Hallow mandrees are used for__________ |
| 49 | Refactoriness of sand is more with __________ sand |
| 50 | Orsat apparatus is used for __________ |
| 51 | __________ is advantage of forging |
| 52 | In 18 – 4- 1 steel, 18 refers to __________ |
| 53 | Steels with carbon % .6-1.5% are known as __________ |
| 54 | Maximum stress a metal can withstand beyond which permanent elongation starts _______ |
| 55 | For self-locking effiency of machine should be __________ |
| 56 | Maximum efficiency of screw jack when x = 30 |
| 57 | When a material is constrained tomove & heated __________ stresses are developed |
| 58 | When B.M is maximum S.F. is __________ |
| 59 | When load at free end of cantilever is increased failure occurs at __________ |
| 60 | Max B.M. for simply supported beam with UDL over entire length is __________ |
| 61 | A material obeys hookes law upto __________ |
| 62 | Proof resilience is given by __________ |
| 63 | T/J relation is used to give __________ |
| 64 | Newton law of viscosity gives relationship between __________ |
| 65 | Centre of buyoance is ________ |
| 66 | Metacentre height is defined as __________ |
| 67 | Velocity ratio is __________ propotional to diameter |
| 68 | T1/T2 = __________ for V – belt |
| 69 | Poise is the unit of __________ |
| 70 | Differential manometer is used to measure __________ |
| 71 | Crowing on the pulley is used to __________ |
| 72 | For maximum power belt speed is given by __________ |
| 73 | In V-belt contact between pulley & belt is __________ |
| 74 | Generally cotter & spigot joint tranmits __________ |
| 75 | Gear train used in clocks __________ |
| 76 | Closed sytem is one which permits __________ |
| 77 | -37F = __________ C |
| 78 | Reversed braytone cycle is __________ |
| 79 | Flow pattern observedafter opening tap __________ |
| 80 | __________ requires heavier flywheel ( 2stroke or 4 stroke) |
| 81 | Watts governor height is given by __________ |
| 82 | Fly wheel is meant for __________ |
| 83 | Wet steam is completely specified by __________ |
| 84 | Critical pressure ratio is given for __________ |