Electric Energy Generation Utilization And Conservation Set 3
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This set of Electric Energy Generation Utilization and Conservation Multiple Choice Questions & Answers (MCQs) focuses on Electric Energy Generation Utilization And Conservation Set 3
Q1 | Which of the following has the highest value of thermal conductivity?
- water
- steam
- solid ice
- melting ice
Q2 | The basic electrical requirement in arc welding is that there should be
- coated electrodes
- high open-circuit voltage
- no arc blow
- d.c. power supply.
Q3 | A.C. welding machine cannot be used for welding
- mig
- atomic hydrogen
- resistance
- submerged arc.
Q4 | In electric welding, arc blow can be avoided by
- using bare electrodes
- welding away from earth ground connection
- using a.c. welding machines
- increasing arc length
Q5 | The major disadvantage of carbon arc welding is that
- there is occurrence of blow holes
- electrodes are consumed fast
- separate filler rod is needed
- bare electrodes are necessary.
Q6 | The free-running speed of a train does NOT depend on the
- duration of stops
- distance between stops
- running time
- acceleration.
Q7 | Longer coasting period for a train results in
- higher acceleration
- higher retardation
- lower specific energy consumption
- higher schedule speed.
Q8 | Skidding of a vehicle always occurs when
- braking effort exceeds its adhesive weight
- it negotiates a curve
- it passes over points and crossings
- brake is applied suddenly.
Q9 | In India diesel locomotives are manufactured at
- ajmer
- varanasi
- bangalore
- jamalpur
Q10 | The horsepower of steam locomotives is
- upto 1500
- 1500 to 2000
- 2000 to 3000
- 3000 to 4000
Q11 | In tramways which of the following motors is used?
- d.c. shunt motor
- d.c. series motor
- a.c. three phase motor
- a.c. single phase capacitor start motor
Q12 | In a steam locomotive electric power is provided through
- overhead wire
- battery system
- small turbo-generator
- diesel engine generator
Q13 | Which of the following drives is suitable for mines where explosive gas exists?
- steam engine
- diesel engine
- battery locomotive
- any of the above
Q14 | In case of locomotives the tractive power is provided by
- single cylinder double acting steam engine
- double cylinder, single acting steam engine
- double cylinder, double acting steam engine
- single stage steam turbine
Q15 | which of the following track is electrified
- delhi-bombay
- delhi-madras
- delhi-howrah
- delhi-ahmedabad
Q16 | For which of the following locomotives the maintenance requirements are the least?
- steam locomotives
- diesel locomotives
- electric locomotives
- equal in all of the above
Q17 | For 600 V D.C. line for tramcars, brack is connected to
- positive of the supply
- negative of the supply
- mid voltage of 300 v
- none of the above
Q18 | In case of---------free running and coasting periods are generally long.
- main-line service
- urban wervice
- sub-urban service
- all of the above
Q19 | The return circuit for tram cars is through
- neutral wire
- rails
- cables
- common earthing
Q20 | Fuse is a piece of wire of a materi
- high melting point
- low melting point
- moderate melting point
- none of the above
Q21 | Earthing is necessary to give protection against
- electric shock
- voltage fluctuation
- overloading
- high temperature of the conductors
Q22 | Static UPS requires
- only rectifier
- only inverter
- both inverter and rectifier
- none of the mentioned
Q23 | No discontinuity is observed in case of
- short break static ups configuration
- long break static ups configuration
- no break static ups configuration
- rotating type ups configuration
Q24 | Which is the material used to as anode in a lithium-ion battery?
- brass foil coated with graphite
- aluminum foil coated with graphite
- copper foil coated with graphite
- stainless steel coated with graphite
Q25 | What is the total number of cells present in a 12-volt battery?
- 5
- 6
- 3
- 4