Industrial and Manufacturing

Q.1 Expected demand of a product is 150 per day. The lead time is days. An order is placed when inventory falls to 400 units. Safety stock is a) 1500 b) 2500 3) 3000 4) 4000 Q.2 In PERT expected time of an activity is based on the assumption that activity follows a) Poisson s distribution b) Binomial distribution c) Beta distribution d) Alpha distribution Q.3 Dummy activities are used in a network to a) Facilitate computation of slacks b) Satisfy precedence requirements c) Determine project completion time d) Avoid use of resources Q.4 Which one of the following methods can be used for forecasting when a demand pattern is consistently increasing or decreasing a) Regression analysis b) Moving average c) Variance analysis d) Weighted moving average Q.5 Which one of the following is a qualitative technique of demand forecasting a) Correlation and regression analysis b) Moving average method c) Delphi technique

d) Smoothing technique Q.6 Which of the following distributions is followed by the number of arrivals in a given time in a single server queuing model a) Negative exponential distribution b) Poisson distribution c) Normal distribution d) Beta distribution Q.7 The appraisal of the quality system of the entire plant is called a) Quality assurance b) Quality mindness c) Quality control d) Quality audit Q.8 Which one of the following statements is not correct for the TQC a) It is about the product quality and quality of all businesses processes b) It is restrict to product quality c) It utilize quality circle d) It utilize zero defect program Q.9 The number of defectives produced by a six sigma process (in parts per million) is a) 5.2 b) 4.2 c) 3.2 d) 2.2 Q.10 In a linear programming the problem has alternative optima a) If degeneracy is encountered b) If these are infinite solutions c) If the objective function is parallel to binding constraints d) The problem is poorly constructed Q.11 The material of pattern in case of investment casting is

a) Thermosetting resin b) Synthetic sand c) Wax d) Mercury Q.12 Slag in casting is a a) Surface defect b) Internal defect c) Crack d) Notch Q.13 the angle between the face and the flank of single point cutting tool is known as a) rake angle b) clearance angle c) lip angle d) point angle Q.14 the primary tool force used to calculate the total power consumption is machining is a) radial force b) tangential force c) axial force d) frictional force Q.15 the % of carbon in grey cast iron is in the range of a) 0.25 to 0.75% b) 1.25 to 1.75% c) 3 to 4 % d) 8 to 10% Q.16 a type of wear that occurs due to cutting action of particles in cutting fluid is referred as a) adhesion wear b) diffusion wear

c) erosive wear d) corrosive wear Q.17 which of the following process is most commonly used for forging of bolt head of hexagonal shape a) closed die drop forging b) open die upset forging c) closed die press forging d) open die progressive forging Q.18 drop forging is used to produce a) small components b) large components c) identical components in large number d) minimum size components Q.19 rolling very thin strip of mild steel requires a) large diameter roll b) small diameter roll c) high speed rolling d) rolling without friction Q.20 laser welding find widest application in a) heavy industry b) structural work c) process industry d) electronics industry Q.21 low hydrogen electrode are baked prior to use in order that a) proper strength is obtained b) welding is free from blow c) welding is free from moisture pick up d) current required is minimum

Q.22 TIG welding is best suited for welding a) mild steel b) stainless steel c) carbon steel d) aluminium Q.23 oxygen to acetylene ratio in case of neutral flame by weight is a) 0.8 : 1 b) 3 : 1 c) 1.2 : 1 d) 2 : 1 Q.24 the commonly used flux for brazing is a) resin b) NH4Cl c) borax d) soft iron Q.25 the acetylene cylinder is filled with a material saturated with a) calcium carbide b) calcium oxide c) acetone d) acetylene

Theory of Machines & Metrology

Q.1 the critical speed of rotating shaft depends upon a) mass b) stiffness c) mass and stiffness d) mass, stiffness and eccentricity Q.2 in forced vibration with viscous damping maximum amplitude occurs when frequency is a) equal to natural freq. b) slightly less than natural freq c) slightly greater than natural freq d) zero Q.3 for an underdamped harmonic oscillator resonance occurs a) when excitation freq is greater than undamped natural freq b) when excitation freq is less than undamped natural freq c) equal d) never occur Q.4 the balancing of reciprocating and rotating parts of an engine is necessary when it runs at a) slow b) medium c) high d) very slow Q.5 which one of the following governor is used to drive a gramophone a) watt governor b) porter governor c) pickering governor

d) hartnell governor Q.6 for minimizing speed fluctuation of an engine as prime mover it must have a) only flywheel fitted to the crank shaft b) a governor provided in the system c) both flywheel and governor d) neither a flywheel nor a governor Q.7 which governor cannot be isochronous a) hartnell b) Wilson and hartnell c) pickning d) porter Q.8 the function of flywheel is a) to maximize constant speed b) to reduce fluctuation of speed c) both a and b d) none Q.9 what is the value of pressure angle generally used in involute gear a) 35 b) 30 c) 25 d) 20 Q.10 which type of gears are used for shaft axis having an offset a) mitre gear b) spiral bevel c) hypoid gear d) zerol Q.11 the curved traced by the end of a thread as it unwound from a stationary cylinder is known as

a) circle b) cycloid c) epicycloid d) involute Q.12 radial cam are also known as a) disc cam b) cylinder cam c) tangent cam d) none Q.13 in a cam drive it is essential to offset the axis of a follower to a) decrease the side thrust between the follower and guide b)decrease the wear between follower and cam surface c) take care of space limitation d) reduce the cost Q.14 size of cam depends upon a) base circle b) pitch circle c) prime circle d) pitch curve Q.15 in a single slider crank mechanism when a slider is fixed it gives a) hand pump b) reciprocating engine c) quick return mechanism d) oscillating mechanism Q.16 which of the following higher pair a) belt and pulley b) screw pair

c) turning pair d) sliding pair Q.17 ring gauge is used to measure a) outside diameter but not roundness b) roundness but not outside diameter c) both outside diameter and roundness d) only external threads Q.18 tolerances are specified a) to obtain desired fits b) because it is not possible to manufacture a size exactly c) to obtain higher accuracy d) to have proper allowances Q.19 optical flats are made of a) quartz b) glass c) plastic d) steel Q.20 external taper can be accurately measure with the help of a) sine bar and slip gauges b) dividing head c) precision balls and height gauge d) combination sets Q.21 sine bar is specified by a) its total length b) centre distance between two rollers c) the size of the rollers d) the distance between rollers and upper distance

Q.22 surface plate is usually mad of grey cast iron because it provides a) non wearing plate b) very hard plate c) easy to cast plate d) lubrication due to graphite plates Q.23 the M and E systems in metrology are related to measurements of a) screw threads b) flatness c) angularity d) surface finish Q.24 in strain gauge dynamometers the use of how many active gauge makes the dynamometer more effective a) 1 b) 2 c) 3 d) 4 Q.25 what is the dominant direction of the tool marks or scratches in a surface texture having a directional quality called a) primary texture b) secondary texture c) lay d) flaw