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You Are On Multi Choice Question Bank SET 3156
157801. The sand grains suited for small and intricate casting should be ?
(A): fine (B): medium (C): coarse (D): rounded
157802. The best moulding for producing plastic article is?
(A): green sand moulding (B): pit moulding (C): plaster moulding (D): injection moulding
157803. In bracing the commonly used flux is :
(A): copper (B): lead (C): boraux (D): sodium chloride
157804. The process used to fix ceramic tool with the tool body is?
(A): welding (B): bracing (C): soldering (D): clamping
157805. A mechanism that locks the lathe carriage to the lead screw for thread cutting is called :
(A): dog clutch (B): shim (C): half nut (D): fly cutter
157806. Which of the following is not prior to the reaming operation ?
(A): drilling (B): tapping (C): boring (D): counter boring
157807. Which of the following machinery use abrasive slurry ?
(A): Electric Discharge Machine (B): Flectro Chemical Machine (C): Ultrasonic Machine (D): Spark Erosion Machine
157808. Surface tension is a phenomenon due to :
(A): cohesion (B): cohesion and adhesion (C): inner diameter only (D): thickness and outer diameter
157809. A tube is specified by :
(A): outer diameter only (B): thickness and inner diameter (C): adhesion (D): cavitation
157810. Cavitation in centrifugal pump is due to :
(A): high discharge pressure (B): high discharge velocity’ (C): high discharge rate (D): low suction pressure
157811. For pumping slurry, the most suitable pump is :
(A): centrifugal pump (B): diaphragm pump (C): jet pump (D): reciprocating pump
157812. Notch is a device for measuring :
(A): flow velocity through a pipeline (B): rate of flow through a pipeline (C): flow velocity through a small channel (D): rate of flow through a small channel
157813. Which of the following turbine is used under low head and high discharge ?
(A): Pelton turbine (B): Francis turbine (C): Tubular turbine (D): Kaplan turbine
157814. A foot-valve provided m a pump is :
(A): pressure control valve (B): direction controlvalve (C): flow control valve (D): pressure relief valve
157815. The Young's modulus is depends on :
(A): stress (B): lateral stress (C): longitudinal stress (D): lateral strain
157816. Maximum compressive stress developed in a transversely loaded rectangular beam is on the?
(A): bottomlayer (B): neutralaxis (C): top layer (D): none of these
157817. When a body just begins to slide over the surface of another body, the maximum frictional force which comes into play is :
(A): sliding friction (B): limiting friction (C): rolling friction (D): kinetic friction
157818. Critical temperature of steam is :
(A): 1000C (B): 3030 C (C): 375° C (D): 400=C
157819. The heat absorbed by water at saturation temperature to get converted into dry steam at the same temperature is called :
(A): sensible heat (B): specificheat (C): total heat (D): latent heat
157820. The ratio between crank shaft speed and cam shaft speed of four stroke 1C engine is :
(A): 2 :1 (B): 1970-01-01 01:00:59 (C): 1970-01-01 01:02:00 (D): 1970-01-01 04:00:59
157821. Steam that exit from the nozzle has :
(A): high pressure and high velocity (B): high pressure and low velocity (C): low pressure and high velocity (D): low pressure and low velocity
157822. On a Mollier diagram, the ideal expansion process of a steam turbine can be represented
(A): drawing a vertical line (B): drawing a horizontal line (C): constant temperature line (D): constant dryness fraction line
157823. Bin card is used in :
(A): stores (B): administrative office (C): workshop (D): 5assembly shop
157824. The incentive wage plan, in which savings are expressed as a percentage of standard time is:
(A): Haslev plan (B): Bedaux plan (C): Lincon plan (D): Rowan plan
157825. CPM consider the trade off between cost and :
(A): time (B): machine (C): man power (D): material
157826. Merit rating is the method of determine :
(A): job identification (B): workers performanceona job (C): relative value of job (D): utility of a machine
157827. Routing and scheduling are integrated part of?
(A): product planning (B): work study (C): time study (D): quality control
157828. With increase in intake air temperature, the efficiency of an IC engine will ?
(A): increase (B): decrease (C): remains same (D): unpredictable
157829. Air petrol ratio for maximum power generation in spark ignition engine is about :
(A): 1970-01-01 06:01:00 (B): 12 : 1 (C): 1970-01-01 18:01:00 (D): 1899-12-31 00:01:00
157830. Stroke of an lC engine equals :
(A): half the crank radius (B): the crank radius (C): tw ice the crank radius (D): four times ofthe crankradius
157831. The float in the carburettor of a petrol engine controls :
(A): flow rate of fuel (B): flow rate of air (C): flow rate of air fuel mixture (D): level of the petrol in the float chamber
157832. Which of the following is the extensive property of the thermodynamic system ?
(A): volume (B): intensity of pressure (C): temperature (D): density
157833. First law of thermodynamics refers to conservation of :
(A): mass (B): momentum (C): energy (D): force
157834. Heat is being supplied to air in a cylinder fitted with a frictionless piston held by a constant weight, the process is :
(A): isothermal (B): adiabatic (C): isobark (D): isochoric
157835. One Ton ot refrigeration is equivalent to :
(A): 1 kW (B): 3.5 kW (C): 50 kW (D): 210 kW
157836. In which component of vapour compression refrigeration system, the enthalpy remains constant ?
(A): condenser (B): compressor (C): evaporator (D): throttle valve
157837. Which of the psychrometric processes is used in summer air conditioner ?
(A): sensible heating (B): cooling anddehumidification (C): sensible cooling (D): heating andhumidification
157838. Which of the following is an integrating type instrument ?
(A): Wattmeter (B): Energy meter (C): Megger (D): Voltmeter
157839. Example lor an absolute instrument is :
(A): Earth tester (B): Ammeter (C): Tangent Galvanometer (D): Power factor meter
157840. A repulsion type voltmeter when used on AC circuits, reads :
(A): Peak value (B): Mean value (C): Equivalent d.c. value (D): R.M.S. value
157841. Which type of wattmeter cannot be used for both a.c and d.c. ?
(A): Induction type (B): Dynamo meter type (C): Electrostatic type (D): None of the above
157842. P.M.M.C. instrument used only in :
(A): AC only (B): DC only (C): Both AC and DC (D): None of the above
157843. The ponter returns to initial position, when the current is removed, due to :
(A): Deflection torque (B): Controlling torque (C): Damping torque (D): All the above
157844. Which of the following is an active transducer ?
(A): Potentiometer device (B): Pirani gauge (C): Piezo electric pick up (D): Hall effect pick up
157845. One of the following can act as an inverse transducer :
(A): Capacitive transducer (B): Resistance potentiometer (C): Piezo electric crystal (D): Bourdon tube
157846. A resistance potentiometer is a?
(A): Zero order instrument (B): First order instrument (C): Second order instrument (D): None of the above
157847. In semi-conductor strain gauge, when tensile strain is applied :
(A): Resistance increases in N type of materials (B): Resistance increases in P type of materials (C): Resistance increases in both P type and N type materials (D): Resistance decreases in both P type and N type materials
157848. Which of the following properties is transformer core ?
(A): Low hysteresis loss (B): Adequate mechanical strength (C): High permeability (D): High thermal conductivity
157849. Which loss in a transformer varies significantly with load ?
(A): Copper loss (B): Core loss (C): Hysteresis loss (D): Eddy currentloss
157850. The function of breather in a transformer is :
(A): To provide cooling air (B): To provide oxygen (C): To filter the transformer oil (D): To prevent moisture entering into the transformer.
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