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S.No Question Option A Option B Option C Option D Answer Solution Comments Status Action
1 The process used to manufacture plastic pipes, hoses, drinking straws, etc., is Extrusion moulding Injection moulding Blow moulding Vacuum forming a Comments Active
2 In the super finishing operation Both abrasive block and work rotate Both abrasive block and work reciprocate The work rotates and the abrasive block reciprocates The abrasive block rotates and the work reciprocates c Comments Active
3 The bonding material for grinding wheels is Silicon carbide Sodium silicate Boron carbide Aluminium oxide b Comments Active
4 The operation of producing grooves around the periphery of a cylindrical or conical work-piece is called Profile milling Gang milling Saw milling Helical milling d Comments Active
5 The operation of making a cone-shaped enlargement at the end of a hole to provide recess for the screw head is known as Counter boring Counter sinking Chamfering Spot facing b Comments Active
6 The device used for holding and rotating hollow workpiece for machining the outer cylindrical surface on a lathe is Mandrels Dogs Collet Angle plate a Comments Active
7 When there is a reduction in amplitude over every cycle of vibration, the body is said to have Free vibration Forced vibration Damped vibration Underdamped vibration c Comments Active
8 A dynamometer is a brake but in addition it has a device to Measure torque Measure frictional resistance Measure the balancing force Act as a speedometer b Comments Active
9 A Hartnell governor is a governor of the Spring controlled type Pendulum type Dead weight type Inertia type a Comments Active
10 The centrifugal tension in belt drive Decreases the power transmitted Increases the power transmitted Has no effect on the power transmitted Increases the power transmission up to a certain speed and then decreases a Comments Active
11 For high speed engines, the cam follower should move with Uniform velocity Simple harmonic motion Uniform acceleration and retardation Cycloidal motion d Comments Active
12 The crank and slotted lever mechanism is an inversion of slider crank chain, obtained by fixing the Crank Connecting rod Slider Frame b Comments Active
13 The non-destructive testing used to detect change in composition of a material is Liquid penetration test Ultrasonic test Eddy current test Radiography d Comments Active
14 In powder metallurgy, the range of particle size (in microns) is 4 to 200 0.300 to 0.003 100 to 2000 5000 to 6000 a Comments Active
15 The process used to reduce brittleness of hardened steel is called Annealing Normalizing Spheroidizing Tempering d Comments Active
16 Alloy of nickel (Ni) and iron (Fe) is termed as Invar Elinvar Constantan Monel a Comments Active
17 The alloying elements in high speed steel (HSS) in order of increasing proportions are Chromium, tungsten, vanadium Vanadium, chromium, tungsten Tungsten, vanadium, chromium Tungsten, chromium, vanadium b Comments Active
18 The engineering material test in which the test specimen is in the form of a simply supported beam is Izod impact test Charpy impact test Brinell hardness test Rockwell hardness test b Comments Active
19 The diameter of a shaft is increased from 25 mm to 50 mm. All other conditions remaining unchanged, the torque carrying capacity of the shaft will be increased by 2 times 4 times 8 times 16 times c Comments Active
20 In a strained material, one of the principal stresses is twice the other. The maximum shear stress is Ï„max>. The value of the maximum principal stress is Ï„max 2Ï„max 4Ï„max 8Ï„max c Comments Active
21 In simple bending of a beam, the relation among F,Y,M,I,E and R, where:
F = stress due to bending moment
Y = distance from neutral axis
M = bending moment
I = moment of inertia
E = Young’s modulus of elasticity
R = radius of curvature of neutral layer of the beam		 F/Y=M/E=I/R​ F/Y=M/R=E/I​ F/E=M/I=Y/R​ F/Y=M/I=E/R​ d Comments Active
22 The other name for a positive bending moment is sagging hogging inflation contraflexure a Comments Active
23 Resilience of a material plays an important role in thermal stress shock loading fatigue] pure static loading b Comments Active
24 The modulus of rigidity and the modulus of elasticity of a material are 84 GPa and 210 GPa respectively. The Poisson’s ratio and bulk modulus of the material are 0.25 GPa and 140 GPa 0.25 GPa and 250 GPa 0.14 GPa and 140 GPa 0.14 GPa and 250 GPa a Comments Active
25 Hooke’s law is valid up to the elastic limit yield point ultimate point limit of proportionality d Comments Active
26 The jigs that are used to drill a series of equidistant holes along a circle are index jigs plate-type jigs open-type jigs pot-type jigs a Comments Active
27 Fixed time between order and a variable order quantity is the characteristic of a continuous inventory system periodic inventory system two-bin system MRP system b Comments Active
28 In the work study, the graphic symbol shown below refers to operation inspection delay transport c Comments Active
29 The correct sequence of operations in production planning and control is scheduling → routing → dispatching → follow-up dispatching → routing → scheduling → follow-up routing → scheduling → follow-up → dispatching routing → scheduling → dispatching → follow-up d Comments Active
30 Material handling covers the following processes, except moving an assembly handling materials storing the product drilling a hole d Comments Active
31 The layout where materials are fed into the first machine and finished products come out of the last machine is product layout process layout fixed position layout cellular manufacturing layout a Comments Active
32 Among the following, the most flexible production system is batch production job-shop production mass production continuous production b Comments Active
33 The acronym PLC stands for Pressure Load Control Pressure Loss Chamber Pneumatic Latching Circuit Programmable Logic Controller d Comments Active
34 The Bureau of Indian Standards Bulletin refers the graphic symbol shown below to accumulators compressors FRL unit throttle valves c Comments Active
35 The gas used in compressed gas (or gas-charged) accumulator is usually oxygen carbon dioxide nitrogen sulphur c Comments Active
36 The valve that regulates the rate of fluid flow to different parts of a hydraulic system is pressure regulating valve pressure limiting valve sequence valve needle valve d Comments Active
37 A cylinder that provides a relatively long working stroke for an overall reduced length by employing several pistons which slide inside each other is called tandem cylinder telescopic cylinder dual linear cylinder through rod cylinder a Comments Active
38 The pump that is categorized in positive displacement pumps, is screw pump centrifugal pump axial flow pump radial flow pump a Comments Active
39 The scientific principle that makes hydraulic systems possible, is Boyle’s law Pascal’s principle Bernoulli’s principle The fluid flow principle b Comments Active
40 Anti-friction bearings are] Journal bearings] Sleeve bearings Ball and roller bearings Gas lubricated bearings c Comments Active
41 The most important dimension in the design of a nut is height pitch diameter inside diameter outside diameter a Comments Active
42 Helical compression springs subjected to axial loading, with which of the following ends offer better sitting? Plain ends Squared ends Plain ground ends Squared ground ends c Comments Active
43 To ensure self-locking in a screw jack, it is essential that the helix angle is larger than friction angle smaller than friction angle equal to friction angle such as to give maximum efficiency in lifting b Comments Active
44 In the bushed pin type flexible coupling, the bushes are made of rubber plastic gunmetal aluminium a Comments Active
45 A feather key is generally loose in shaft and tight in hub tight in shaft and loose in hub tight in both shaft and hub loose in both shaft and hub b Comments Active
46 The process of creating mechanisms and shapes of mechanical elements for a machine to get the desired output for a given input is called analysis innovation synthesis designing c Comments Active
47 Successful project managers spend most of their time in planning with their personnel planning with the top management communication with the project team studying project results c Comments Active
48 The result of the economic order quantity (EOQ) formula indicates the annual quantity of inventory to be carried annual usage of materials during the year safety stock plus estimated inventory for the year quantity of each individual order during the year d Comments Active
49 In ABC analysis of stock control, the C category goods should have tight control less tight control no control simplest possible control d Comments Active
50 The finance manager is accountable for arrangement of financial resources earning capital assets of the company effective management of a fund proper utilization of funds a Comments Active
51 The HR specialty who prepares job descriptions is called Compensation Manager EEO Coordinator Job Analyst Recruiter c Comments Active
52 The first and foremost function of management is planning organizing controlling coordination a Comments Active
53 The automobile chassis consists of engine, frame, power train, wheel, steering and the doors luggage boot braking system differential c Comments Active
54 The electrical system of an automobile contains battery, starting motor, ignition system, lighting system and invertors stabilizers alternators generators c Comments Active
55 The purpose of vehicle tyre plies is to increase tread life decrease noise level provide softer ride increase traction a Comments Active
56 The three types of spring used in automobile suspension system are coil, leaf and torsion bar helical, lever and torsion bar leaf, suppression and superlift lever, belleville and volute a Comments Active
57 The purpose of transmission in an automobile is to vary the speed of automobile torque at the road wheels power of the automobile fuel supply from the tank b Comments Active
58 The automobile clutch is located between the transmission and the engine rear axle propeller shaft differential a Comments Active
59 The Light Motor Vehicle (LMV) category includes motorbikes and cars cars and taxis taxis and buses buses and trains b Comments Active
60 Type of control chart plotted for the fraction of defective items in a sample is X-bar chart R-chart C-chart P-chart d Comments Active
61 Which of the following ensures the quality of products during the manufacturing process itself? Process control Process capability Product design rate Statistical control chart a Comments Active
62 Any measurable characteristic of a particular product or service is called statistics control quality performance c Comments Active
63 The instrument used to measure base pitch of a gear in the base tangent method is gear tooth Vernier caliper David Brown tangent caliper David Brown tangent comparator David Brown tangent micrometer c Comments Active
64 Thread gauges or screw gauges that are used to inspect external thread form plug screw gauges ring screw gauges external screw gauges All of the above b Comments Active
65 The closeness of two or more measurements to each other with respect to a given fixed input is called accuracy precision resolution sensitivity b Comments Active
66 The pollution significantly contributes to global pollution is soil pollution industrial pollution radioactive pollution water pollution b Comments Active
67 The radioactive material largely associated with bone cancer is Strontium-90 Radium-226 Thorium-232 Iodine a Comments Active
68 The process of burning municipal solid wastes in a properly designed furnace under suitable temperature and these operating conditions is called landfill recycling incineration vermicomposting c Comments Active
69 The most possible cause of tension, headache, high blood pressure, loss of concentration and loss of hearing abilities is water pollution air pollution noise pollution pesticide pollution c Comments Active
70 Amoebic dysentery is caused by virus bacterium helminthic protozoans d Comments Active
71 The Taj Mahal is threatened due to the effect of chlorine sulphur dioxide hydrogen oxygen b Comments Active
72 The largest ecosystem of the world is forests grasslands great lakes oceans d Comments Active
73 Which of the following parameters decreases during sensible heating of air? Dry bulb temperature Wet bulb temperature Specific humidity Relative humidity d Comments Active
74 Air refrigeration cycle is extensively used in aircraft because of low weight per tonne of refrigeration high heat transfer rate low temperature at high altitudes higher coefficient of performance a Comments Active
75 In a turbojet engine, the products of combustion after passing through the gas turbine are discharged into atmosphere diffuser discharge nozzle back to the compressor c Comments Active
76 High air-fuel ratio in gas turbines restricts damage to turbine blades reduces exhaust temperature increases power output improves thermal efficiency b Comments Active
77 The clearance volume of the air compressor is kept minimum because it results in minimum work permits isothermal compression greatly affects volumetric efficiency allows maximum compression to be achieved c Comments Active
78 A three-way catalytic converter cannot reduce the emission of hydrocarbon (HC) carbon monoxide (CO) nitrogen oxide (NO) suspended particulate matter (SPM) d Comments Active
79 Method commonly used for determination of indicated power of multicylinder SI engines is Morse test Willan’s line method viscous flow air meter eddy current dynamometer a Comments Active
80 In the diesel cycle, an increase in cut-off ratio will increase efficiency mean effective pressure maximum weight the engine weight b Comments Active
81 In manufacturing science, the acronym DNC stands for Digital Numerical Control Direct Numerical Control Double Numerical Control Democratic National Committee b Comments Active
82 Manufacturing system that brings together several technologies into coherent system is focused integration system automated integration system portable manufacturing system flexible manufacturing system d Comments Active
83 Which of the following is not an element of machine tool? Cutting tool Structure Spindles and bearings Drives b Comments Active
84 Feed drives in CNC milling machines are provided by synchronous motors induction motors stepper motors servo motors d Comments Active
85 The machining process that gives the highest rate of material removal is Ultrasonic Machining (USM) Chemical Machining (CHM) Electrochemical Machining (ECM) Electric Discharge Machining (EDM) c Comments Active
86 The machining method that is suitable for machining hard brittle materials such as glass is Ultrasonic Machining (USM) Chemical Machining (CHM) Electrochemical Machining (ECM) Electric Discharge Machining (EDM) a Comments Active
87 Air vessel is used in the reciprocating pumps to get reduction of suction heat reduction in cavitation continuous supply of liquid at uniform rate increase in supply of water c Comments Active
88 The shape of impeller vanes that are most commonly used in centrifugal type compressors is forward curved radial backward curved tangential b Comments Active
89 The forces on the buckets of Pelton turbines are determined by force balance energy equation continuity equation momentum equation d Comments Active
90 The Darcy-Weisbach equation is commonly used for finding loss of head due to friction in pipes loss of head due to turbulence loss of head due to bend in pipe loss of head due to sudden enlargement a Comments Active
91 A highly viscous fluid flowing at a low velocity is called steady flow uniform flow turbulent flow laminar flow d Comments Active
92 The specific weight of a fluid is 20000 N/m³. The gauge pressure in a tank bottom containing the fluid to a height of 0.2 m is 4000 N/m² 14000 N/m² 16000 N/m² 24000 N/m² a Comments Active
93 The ratio of the density of a fluid to the density of water is called specific volume specific weight specific gravity specific mass c Comments Active
94 For a given heat flow and for the same thickness, the temperature drop across the material will be maximum for Copper Steel Glass wool Refractory brick c Comments Active
95 The main aim of compounding in steam turbines is to Reduce motor speed Reduce turbine size Reduce steam consumption Improve efficiency a Comments Active
96 Economiser in a boiler is used to extract heat from flue gases for pre-heating Blow down Fuel oil Air for combustion of fuel Feed water d Comments Active
97 The gas constant (R) is equal to the Sum of two specific heats, Cp and Cv Difference of two specific heats, Cp and Cv Product of two specific heats, Cp and Cv Ratio of two specific heats, Cp and Cv b Comments Active
98 The parameter that remains constant in a throttling process is Internal energy Pressure Enthalpy Entropy c Comments Active
99 In thermodynamics, a fixed quantity of matter or a region in space chosen for study is called Thermodynamic cycle Thermodynamic system Thermodynamic process Thermodynamic law b Comments Active
100 The disadvantage with most of the renewable energy sources is that they_____. Are highly polluting Have high waste disposal cost Provide unreliable power supply Have high running cost c Comments Active