Free Test Technical subjects – Railway...

Q1: Which device is used to convert AC to DC?

A. Transformer B. Rectifier C. Inverter D. Amplifier

Q2: Ohm’s Law relates voltage with what?

A. Current and resistance B. Power and energy C. Resistance and capacitance D. Current and power

Q3: Which of these is a non-renewable energy source?

A. Wind B. Solar C. Coal D. Hydro

Q4: What is the function of a capacitor?

A. Store charge B. Generate current C. Block DC D. Reduce power

Q5: Which metal is used for making aircraft bodies?

A. Copper B. Iron C. Aluminium D. Lead

Q6: What does CNC stand for in manufacturing?

A. Computerized Numerical Control B. Central Numeric Control C. Control Numeric Code D. Coded Number Control

Q7: Which type of welding uses a non-consumable electrode?

A. MIG welding B. TIG welding C. Arc welding D. Gas welding

Q8: Which motor is commonly used in electric trains?

A. DC series motor B. Shunt motor C. Stepper motor D. Induction motor

Q9: Hardness of a material is measured by?

A. Multimeter B. Hydrometer C. Brinell tester D. Tachometer

Q10: What is used to increase signal strength?

A. Rectifier B. Transformer C. Amplifier D. Oscillator

Q11: Which of these is a type of gear?

A. Ball B. Bevel C. Roller D. Toggle

Q12: SI unit of pressure is?

A. Bar B. Pascal C. Newton D. Joule

Q13: Which tool is used for measuring small gaps?

A. Caliper B. Feeler gauge C. Ruler D. Micrometer

Q14: AC stands for?

A. Air Conditioner B. Alternating Current C. All Current D. Applied Charge

Q15: What does a multimeter measure?

A. Only voltage B. Voltage, current and resistance C. Only current D. Only resistance

Q16: Which device stores energy in a magnetic field?

A. Resistor B. Capacitor C. Inductor D. Battery

Q17: What is the full form of LED?

A. Low Energy Display B. Light Emitting Diode C. Light Energy Device D. Limited Emission Diode

Q18: Which material is used in fuse wire?

A. Copper B. Lead C. Aluminium D. Tin-lead alloy

Q19: Which machine tool removes material using a rotating cutter?

A. Lathe B. Shaper C. Drill D. Milling machine

Q20: The symbol "Ω" represents what?

A. Voltage B. Current C. Power D. Resistance

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