DSSSB Pump Operator Paper 2014

DSSSB Fitter Electric/ Electric Driver/ Motorman/ Pump Driver/ Switch Board Operator Paper 2014

For a soruce of E.M.F., a raise in potential occurs when moving from
(a) positive to negative terminal of the source
(b) across the resistor in the same direction as that of current
(c) negative to positive terminal of the source
(d) across the resistor in the opposite direction as that of current

In a earth resistance tester or megger, to change the alternating voltage drop outside the instrument to direct voltage drop inside, the device employed is
(a) synchronous rotary rectifier
(b) current reverser
(c) synchronous condensor
(d) phase modifier

The diagram in which of the position of the components in the diagram bears a resemblance to their actual physical position
(a) layout diagram
(b) installation plan
(c) wiring diagram
(d) circuit diagram

The ratio between the set voltage range and resistance of the voltmeter is
(a) accuracy
(b) resolution
(c) range
(d) sensitivity

In a measuring instrument, if the pointer moves quickly to its final deflected position without any sort of oscillations, the damping is called
(a) critical damping
(b) under damping
(c) null damping
(d) over damping

A divider is NOT used for
(a) measuring distance between points
(b) scribing lines on metal being laid out
(c) transferring measurement from a rule
(d) scribing circles and arcs

The most commonly used hacksaw frame which provides better grip and control while sawing is
(a) bold frame
(b) adjustable frame
(c) adustable frame tubular type
(d) fixed frame

If a coil of resistance R and inductance L, its time constant is given by
(a) R/L
(b) L/R
(c) 1/LR
(d) LR

The reduction in inner conductive effect of the conducting material and increase in circuit resistance is due to
(a) dielectric stress
(b) hysteresis
(c) proximit effect
(d) skin effect

The strogest of the diamagnetic material is
(a) graphite
(b) glass
(c) bismuth
(d) sulphur

The method of charging secondary cells where the supply voltage is high voltage DC, but the battery is of low voltage is
(a) constant current method
(b) constant voltage method
(c) rectifier method
(d) trickle charge method

The current in a 200 mH coil increases from 2 to 5 ampere in 0.1 second. The self induced E.M.F is
(a) 3 V
(b) 6 V
(c) 9 V
(d) 12 V

The time in years a stored battery will produce at least 75% of its initial capacity is
(a) half life
(b) shelf life
(c) critical life
(d) useful life

To measure very high temperature of furnaces, we employ a thermocouple which is used in a
(a) thermometer
(b) thermistor
(c) pyrometer
(d) bolometer

For a wall thickness guage conduit of 2 mm, the nominal size of the metal conduit is
(a) 64 mm
(b) 50 mm
(c) 32 mm
(d) 38 mm