Electronics Mechanic Mostly Asked MCQ PDF Part Three For RRB ALP/Technician CBT 2
Here we are providing mostly asked MCQ PDF of Electronics Mechanic Trade For RRB ALP/Technician CBT 2 stage exam,It will be provide help to aspirants who are going to appear this exam.Next part will be upload tomorrow.
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Question-1.Electrical braking preferred in industries is
1. None of these
2. Plugging
3. Regenerate breaking
4. Dynamic breaking
Answer-Regenerate breaking
Question-2. In Hand off
1. Process of transferring the call to the new base station
2. New channel allocation is done
3. Transfers the call
4. All of these
Answer –All of these
Question-3.Following is used an output device on a ladder diagram
1. Proximity sensor
2. Detent switch
3. All of these
4. Relay
Answer-Relay
Question-4.In PLC mounting rack s used for mouning
1. I/ O Module
2. Processor
3. All of these
4. Communication module
Answer –All of these
Question-5.The minimum spectrum allocation required for W-CDMA is
1. 2MH
2. 100KH
3. 5MH
4. 500KH
Answer-5MH
Question-6.The shape of the cellular region for maximum radio coverage is
1. Hexagon
2. Circular
3. Oval
4. Square
Answer-Hexagon
Question-7.The process of transferring a mobile station from one base station to another is
1. MSC
2. Forward channel
3. Roamer
4. Hand off
Answer –Hand off
Question-8.Type of electric drive used in cranes
1. Individual
2. Both Individual & Group
3. Group
4. Multi motor
Answer-Multi motor
Question-9.Rotating magnetic field is produced in a
1. Three phase induction motor
2. DC series motor
3. AC series motor
4. Single-phase induction motor
Answer-Three phase induction motor
Question-10.The starting torque in a single-phase induction motor is
1. Zero
2. High
3. Low
4. Very low
Answer-Zero
Question-11.The lubricator in a pneumatic ciurcuit is the
1. Last element in line
2. Second element in line
3. First element in line
4. Third element in line
Answer-Last element in line
Question-12.In pneumatic system, AND gate is also known as
1. None of these
2. Check valve
3. Shuttle valve
4. Dual pressure valve
Answer-Dual pressure valve
Question-13. If in induction machine is run at above synchronous speed,it acts as
1. An induction motor
2. An induction generator
3. None of these
4. A synchronous motor
Answer-An induction generator
Question-14.The capability of convent on relay systems for complex operations is _________that of the PLCs.
1. Unpredictable as
2. As good as
3. Poor than
4. Excellent than
Answer-Poor than
Question-15.Slip of an induct on motor increases with
1. Decrease in current and increase in torque
2. Decrease in current and torque
3. Increase in current and decrease in torque
4. Increase in current and torque
Answer-Increase In current and torque
Question-16.Carrier frequency of a TV remote control is in the range
1. Of infrared
2. Less than 1 GH
3. Less than 100 MH
4. Less than 2 GH
Answer-Of infrared
Question-17.Static convergence is done of the screen
1. Center
2. Edges
3. Right
4. Left
Answer-Center
Question-18. If the value of error Increases, the changing speed of controller output
1. Increases
2. Decrease
3. Cannot say
4. Remains constant
Answer-Remains constant
Question-19.AC power in a load can be controlled by using
1. Two SCR’s in parallel opposition
2. Two SCR’S in series
3. Three SCR’s in series
4. Four SCR’s in series
Answer-Two SCR’s n parallel opposition
Question-20.Condition/s of MCLR (master clear) pin allow to reset the PIC
1. Moderate
2. High
3. Low
4. All of these
Answer-Low
Question-21.The light output from an LED is a function of
1. None of these
2. Frequency
3. Current
4. Voltage
Answer-Current
Question-22.The basic elements of electric drive are
1. Electric motor
2. Electrical motor and control system
3. None of these
4. Control system
Answer-Electrical motor and control system
Question-23.The number of lines scanned per frame in the raster on the picture tube screen is
1. 262
2. 525
3. 20
4. 10
Answer -525
Question-24. In electropneumatic circuits
1. All of these
2. Spool is shifted by control air
3. Spool is shifted by electromotive force
4. Spool is shifted by signal air
Answer-Spool is shifted by electromotive force
Question-25.The phase difference between two winding of AC servomotor
1. 1200
2. 600
3. 900
4. 300
Answer-900
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