Introduction: Preparing for Navy Ordnance Branch Tests
If you’re looking to join the prestigious Pak Navy through the Navy Ordnance Branch, preparing for the initial tests is a crucial step toward securing your future. The Navy Ordnance Branch tests are collected to pass the students in the initial tests and ensure they meet the high standards of the Pak Navy. Luckily, you can now prepare for these tests free of cost with access to past papers that reflect the actual exam format. These resources will help you understand the test pattern, sharpen your skills, and boost your confidence. Whether you’re preparing for the written exam or practical assessments, our comprehensive guide on the Navy Ordnance Branch tests will provide you with the tools you need to succeed.
Paper Pattern for Pak Navy Ordnance Branch Tests
If you want to prepare initial tests of Pak Navy Ordnance Branch Tests then it has two types of paper,
- Intelligence Tests (It includes verbal and Non-Verbal Intelligence Tests)
- Academic Test (It includes purely subject related mcqs against which degree you have applied.
In intelligence tests students are to face 84 verbal intelligence tests in 30 minutes and 64 Non verbal intelligence tests in 25 to 30 minutes, depends on policy.
Pak Navy Ordnance Branch Tests MCQs with Answers
Most important Navy Ordnance Branch tests are given below.
Q1: What is the unit of electrical resistance?
(a) Ampere
(b) Ohm
(c) Watt
(d) Volt
Answer: (b) Ohm
Q2: Which of the following is the main function of a transformer?
(a) Change voltage
(b) Store energy
(c) Increase current
(d) Increase power
Answer: (a) Change voltage
Q3: In an AC circuit, what does the reactance depend on?
(a) Resistance
(b) Inductance and capacitance
(c) Voltage
(d) Power
Answer: (b) Inductance and capacitance
Q4: What is the formula to calculate the power in an AC circuit?
(a) P = VI
(b) P = Vยฒ/R
(c) P = IยฒR
(d) P = VI cos(ฮธ)
Answer: (d) P = VI cos(ฮธ)
Q5: What type of current is used in transformers?
(a) Direct current
(b) Alternating current
(c) Pulsating current
(d) None of the above
Answer: (b) Alternating current
Q6: Which of the following materials has the highest thermal conductivity?
(a) Wood
(b) Steel
(c) Copper
(d) Air
Answer: (c) Copper
Q7: What is the unit of work done in mechanical systems?
(a) Joule
(b) Newton
(c) Watt
(d) Kilowatt
Answer: (a) Joule
Q8: In thermodynamics, what is the first law of thermodynamics?
(a) Energy can neither be created nor destroyed
(b) Heat flows from cold to hot
(c) Entropy always increases
(d) Energy is destroyed in every process
Answer: (a) Energy can neither be created nor destroyed
Q9: Which of the following is a type of power transmission in mechanical systems?
(a) Direct current
(b) Chain drive
(c) Diode
(d) Capacitor
Answer: (b) Chain drive
Q10: What is the main function of a heat exchanger in mechanical systems?
(a) Absorb heat
(b) Transfer heat between two fluids
(c) Convert heat to electrical energy
(d) Increase temperature of fluid
Answer: (b) Transfer heat between two fluids
Q11: Which of the following systems is used in Mechatronics?
(a) Control systems
(b) Mechanical systems
(c) Electrical systems
(d) All of the above
Answer: (d) All of the above
Q12: In a mechatronic system, what is the main purpose of sensors?
(a) To measure temperature
(b) To convert mechanical energy into electrical energy
(c) To detect and measure physical quantities
(d) To regulate power
Answer: (c) To detect and measure physical quantities
Q13: What is a primary characteristic of a mechatronic system?
(a) Use of mechanical and electrical components only
(b) Integration of mechanical, electrical, and computing elements
(c) Use of hydraulic power
(d) Use of chemical reactions
Answer: (b) Integration of mechanical, electrical, and computing elements
Q14: What does PLC stand for in mechatronics?
(a) Programmable Logic Controller
(b) Pneumatic Logic Circuit
(c) Phase Lock Controller
(d) Power Line Carrier
Answer: (a) Programmable Logic Controller
Q15: What is the key function of actuators in mechatronic systems?
(a) Sensing the environment
(b) Converting electrical signals to physical movement
(c) Storing energy
(d) Processing data
Answer: (b) Converting electrical signals to physical movement
Q16: Which of the following is used to store electrical energy in an electronic circuit?
(a) Transistor
(b) Capacitor
(c) Diode
(d) Resistor
Answer: (b) Capacitor
Q17: What is the main purpose of a diode in electronic circuits?
(a) Amplify current
(b) Regulate voltage
(c) Allow current to flow in one direction only
(d) Store energy
Answer: (c) Allow current to flow in one direction only
Q18: Which of the following is NOT a type of semiconductor material?
(a) Silicon
(b) Germanium
(c) Copper
(d) Gallium
Answer: (c) Copper
Q19: In a digital circuit, what does a logic gate perform?
(a) Storage of data
(b) Conversion of analog to digital signals
(c) A specific logical operation on one or more binary inputs
(d) Amplification of signals
Answer: (c) A specific logical operation on one or more binary inputs
Q20: What is the main purpose of an op-amp in electronics?
(a) To amplify weak signals
(b) To store energy
(c) To switch signals
(d) To regulate voltage
Answer: (a) To amplify weak signals
Navy Ordnance Branch Tests for Initial Tests of SSC
Most famous and current past papers of Navy Ordnance Branch tests.
Q1: What is the unit of capacitance?
(a) Henry
(b) Farad
(c) Volt
(d) Ohm
Answer: (b) Farad
Q2: Which material is commonly used as an insulator in electrical cables?
(a) Copper
(b) Aluminum
(c) Rubber
(d) Iron
Answer: (c) Rubber
Q3: What is the primary purpose of a fuse in an electrical circuit?
(a) Regulate current
(b) Store energy
(c) Prevent overcurrent damage
(d) Increase voltage
Answer: (c) Prevent overcurrent damage
Q4: In a synchronous motor, the rotor speed is determined by:
(a) The load
(b) The number of poles in the motor
(c) The voltage supply
(d) The temperature
Answer: (b) The number of poles in the motor
Q5: What is the effect of increasing the resistance in a series circuit?
(a) Current decreases
(b) Voltage increases
(c) Power increases
(d) Current remains unaffected
Answer: (a) Current decreases
Q6: Which device is used to convert alternating current (AC) to direct current (DC)?
(a) Transformer
(b) Rectifier
(c) Inductor
(d) Capacitor
Answer: (b) Rectifier
Q7: Which principle does a hydraulic press operate on?
(a) Bernoulli’s principle
(b) Archimedes’ principle
(c) Pascalโs principle
(d) Newtonโs law
Answer: (c) Pascalโs principle
Q8: Which of the following is most commonly used for mechanical power transmission?
(a) Belts
(b) Gears
(c) Shafts
(d) Pulleys
Answer: (b) Gears
Q9: In a four-stroke engine, how many strokes are required to complete one cycle?
(a) One
(b) Two
(c) Three
(d) Four
Answer: (d) Four
Q10: The purpose of a flywheel in mechanical systems is to:
(a) Store rotational energy
(b) Increase friction
(c) Convert kinetic energy to heat
(d) Regulate temperature
Answer: (a) Store rotational energy
Q11: What type of signal is commonly used for communication in mechatronic systems?
(a) Analog
(b) Digital
(c) Both analog and digital
(d) None of the above
Answer: (c) Both analog and digital
Q12: Which component is used to measure the flow of current in a circuit?
(a) Capacitor
(b) Voltmeter
(c) Ammeter
(d) Thermistor
Answer: (c) Ammeter
Q13: Which system is used to regulate the speed of an electric motor?
(a) Thermal system
(b) Mechanical system
(c) Electronic control system
(d) Hydraulic system
Answer: (c) Electronic control system
Q14: In a pneumatic system, what is typically used as the driving force?
(a) Air pressure
(b) Electrical current
(c) Hydraulic fluid
(d) Magnetic field
Answer: (a) Air pressure
Q15: Which component in an electronic circuit is used for switching?
(a) Resistor
(b) Transistor
(c) Capacitor
(d) Inductor
Answer: (b) Transistor
Q16: What is the primary function of an inverter in an electronic system?
(a) Convert DC to AC
(b) Increase voltage
(c) Store energy
(d) Regulate current
Answer: (a) Convert DC to AC
Q17: In a mechanical system, what is the purpose of a bearing?
(a) Store energy
(b) Reduce friction
(c) Transfer power
(d) Control temperature
Answer: (b) Reduce friction
Q18: What is the effect of increasing the supply voltage on the current in a resistive circuit?
(a) The current decreases
(b) The current increases
(c) The current remains unaffected
(d) The voltage drops
Answer: (b) The current increases
Q19: What is the purpose of a rectifier circuit in an electronic system?
(a) Convert DC to AC
(b) Regulate voltage
(c) Convert AC to DC
(d) Amplify signals
Answer: (c) Convert AC to DC
Q20: Which of the following is an example of a mechanical power transmission system?
(a) Electric motor
(b) Hydraulic pump
(c) Belt and pulley
(d) Transistor circuit
Answer: (c) Belt and pulley
Navy Ordnance Branch Tests with Answers for Initial Academic Tests
Most repeated Navy Ordnance Branch tests are given to pass the initial tests of Pak Navy.
Q1: Which of the following is a property of an ideal transformer?
(a) Zero losses
(b) Infinite efficiency
(c) Constant voltage output
(d) All of the above
Answer: (d) All of the above
Q2: In a three-phase AC circuit, what is the phase difference between the three voltages?
(a) 180ยฐ
(b) 120ยฐ
(c) 90ยฐ
(d) 60ยฐ
Answer: (b) 120ยฐ
Q3: Which of the following is a function of a rectifier in a power supply circuit?
(a) Increase voltage
(b) Convert AC to DC
(c) Filter noise
(d) Control current
Answer: (b) Convert AC to DC
Q4: In an electric motor, what is the function of the commutator?
(a) Increase speed
(b) Change direction of current
(c) Reduce wear on brushes
(d) Regulate voltage
Answer: (b) Change direction of current
Q5: What does the Faradayโs law of electromagnetic induction state?
(a) The current is proportional to voltage
(b) A change in magnetic field induces an electromotive force
(c) Voltage is inversely proportional to resistance
(d) Energy is conserved in the system
Answer: (b) A change in magnetic field induces an electromotive force
Q6: Which of the following is used to increase or decrease the voltage in an AC circuit?
(a) Capacitor
(b) Inductor
(c) Transformer
(d) Resistor
Answer: (c) Transformer
Q7: What is the efficiency of a machine that outputs 500 W of power and takes in 700 W of power?
(a) 50%
(b) 70%
(c) 85%
(d) 100%
Answer: (b) 70%
Q8: What type of engine uses both fuel and compressed air for power generation?
(a) Electric engine
(b) Internal combustion engine
(c) Hybrid engine
(d) Pneumatic engine
Answer: (c) Hybrid engine
Q9: Which mechanical property is most closely related to the ability of a material to return to its original shape after deformation?
(a) Ductility
(b) Hardness
(c) Elasticity
(d) Toughness
Answer: (c) Elasticity
Q10: In a hydraulic system, what does Pascalโs law state?
(a) The force applied is inversely proportional to the area
(b) The pressure is the same throughout the fluid in an enclosed system
(c) Force is proportional to mass
(d) Fluid moves from lower to higher pressure areas
Answer: (b) The pressure is the same throughout the fluid in an enclosed system
Q11: What is the primary function of an actuator in a mechatronic system?
(a) Convert digital signals to mechanical motion
(b) Measure environmental conditions
(c) Process data
(d) Store energy
Answer: (a) Convert digital signals to mechanical motion
Q12: Which of the following is a commonly used material for making the housing of mechatronic systems?
(a) Plastic
(b) Aluminum
(c) Glass
(d) Rubber
Answer: (b) Aluminum
Q13: What is the purpose of the feedback loop in a control system?
(a) To generate energy
(b) To stabilize the system and maintain desired output
(c) To enhance the power
(d) To convert analog signals to digital
Answer: (b) To stabilize the system and maintain desired output
Q14: Which of the following sensors is most commonly used to measure temperature?
(a) Pressure sensor
(b) Proximity sensor
(c) Thermocouple
(d) Light sensor
Answer: (c) Thermocouple
Q15: What is a key feature of an industrial robot used in mechatronics?
(a) Ability to perform repetitive tasks with precision
(b) Ability to generate electricity
(c) Ability to create data backups
(d) Ability to store large amounts of data
Answer: (a) Ability to perform repetitive tasks with precision
Q16: What is the function of a flywheel in a mechanical system?
(a) Regulate temperature
(b) Store energy to smooth out fluctuations
(c) Reduce noise
(d) Increase pressure
Answer: (b) Store energy to smooth out fluctuations
Q17: Which of the following components is used to store electrical energy in an electric circuit?
(a) Inductor
(b) Capacitor
(c) Resistor
(d) Diode
Answer: (b) Capacitor
Q18: Which of the following devices is used to convert electrical energy into mechanical energy?
(a) Motor
(b) Generator
(c) Rectifier
(d) Transformer
Answer: (a) Motor
Q19: What is the basic function of a voltage regulator in an electronic circuit?
(a) To increase voltage
(b) To store voltage
(c) To maintain a constant voltage level
(d) To filter noise
Answer: (c) To maintain a constant voltage level
Q20: In a mechatronic system, what is the purpose of a microcontroller?
(a) To store data
(b) To control the operation of sensors and actuators
(c) To convert power from AC to DC
(d) To amplify signals
Answer: (b) To control the operation of sensors and actuators
Online Practice of Electrical Engineering in Navy Ordnance Branch tests
Online Practice of Past Questions of Mechanical Engineering
Online Practice of Past Questions of Electronics MCQs
Online Practice of Mechatronics Engineering MCQs
Online Practice of Intelligence Tests for Ordnance Branch Tests
Related: Pak Navy Weapon Engineering MCQs with Correct Answers
Join Shaheen Forces Academy for More updates of Navy Ordnance Branch
Sonic Intelligence 2026
Pierce the cognitive sound barrier for the 2026 screening. Access verified Verbal and Non-Verbal reasoning banks for Pakistan Army, Navy, and PAF officer selection.
Army Navy PAF Success Hub
The 2026 aerodynamic core for military preparation. Download wave-verified PDF past papers and master ISSB and Cadet College entrance exams with Mach-speed focus.
