Understanding the PAF Initial Test Preparation Process
Effective PAF initial test preparation is crucial for candidates aspiring to join the Pakistan Air Force. This preparation involves reviewing key subjects through various resources, including textbooks, online courses, and practice exams. Focusing on multiple-choice questions (MCQs) relevant to roles such as Aerotrade, General Duty (GC), Provost, Mechanical Transport Driver (MTD), and Fire Fighter helps candidates understand the types of questions they will encounter.
By utilizing structured study plans and consistently practicing with sample papers, candidates can enhance their knowledge and confidence, significantly improving their chances of success in the initial tests and advancing in their PAF journey.
Essential Tips for Effective PAF Initial Test Preparation
Q. Electric wire produces which field around it?
- A) Electric Field
- B) Magnetic Field
- C) Gravitational Field
- D) Electromagnetic Field
Correct Answer: B) Magnetic Field
Q. Unit of energy is ______.
- A) Joule
- B) Newton
- C) Watt
- D) Volt
Correct Answer: A) Joule
Q. Gravity of the moon is _____ times less than that of Earth.
- A) 1/3
- B) 1/4
- C) 1/5
- D) 1/6
Correct Answer: D) 1/6
Q. Energy stored in a dam is called _______.
- A) Kinetic Energy
- B) Thermal Energy
- C) Potential Energy
- D) Mechanical Energy
Correct Answer: C) Potential Energy
Q. Kelvin is the unit of _____.
- A) Pressure
- B) Energy
- C) Temperature
- D) Volume
Correct Answer: C) Temperature
Q. Displacement is a ____ quantity.
- A) Scalar
- B) Vector
- C) Constant
- D) Dynamic
Correct Answer: B) Vector
Q. If m = 50 kg and h = 30 m, then find Potential Energy (P.E)?
- A) 1500 N
- B) 14700 J
- C) 3000 N
- D) 6000 N
Correct Answer: B) 14700 J (or rounded figure 15000 N)
Q. Pascal is equal to _____.
- A) J/m²
- B) Nm²
- C) Nm⁻²
- D) J/s
Correct Answer: C) Nm⁻²
Q. Unit of power is called ______.
- A) Joule
- B) Watt
- C) Volt
- D) Ampere
Correct Answer: B) Watt
Q. Which substance has high heat capacity?
- A) Air
- B) Oil
- C) Water
- D) Sand
Correct Answer: C) Water
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Q. 1 Giga is equal to _____.
- A) 10
- B) 100
- C) 10⁶
- D) 10⁹
Correct Answer: D) 10⁹
Q. Who gave the idea of gravity?
- A) Einstein
- B) Galileo
- C) Newton
- D) Kepler
Correct Answer: C) Newton
Q. Unit of light is _____.
- A) Watt
- B) Lux / Candela
- C) Joule
- D) Lumen
Correct Answer: B) Lux / Candela
Q. Sound waves are also called _____?
- A) Transverse
- B) Longitudinal
- C) Electromagnetic
- D) Surface
Correct Answer: B) Longitudinal
Q. A lens which is curved inside and thick at the edges is called ____?
- A) Convex
- B) Concave
- C) Plano-concave
- D) Biconvex
Correct Answer: B) Concave
Q. To find the ratio of the speed of light in air to the speed of light in a medium, we use which law?
- A) Snell’s Law
- B) Refraction Law
- C) Newton’s Law
- D) Law of Reflection
Correct Answer: B) Refraction Law
Q. What is used to store chemical charge?
- A) Resistor
- B) Inductor
- C) Capacitor
- D) Transformer
Correct Answer: C) Capacitor
Q. In Hooke’s Law, force is directly proportional to……
- A) Mass
- B) Velocity
- C) Displacement
- D) Acceleration
Correct Answer: C) Displacement
Q. In thermal expansion, when the temperature of a substance increases, then its ______ also increases.
- A) Density
- B) Pressure
- C) Volume
- D) Mass
Correct Answer: C) Volume
Q. Loudness of a sound depends on___?
- A) Frequency
- B) Wavelength
- C) Amplitude
- D) Speed
Correct Answer: C) Amplitude
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Q. Metals are good conductors due to____?
- A) Free electrons
- B) Fixed atoms
- C) High density
- D) Low temperature
Correct Answer: A) Free electrons
Q. Which is a good insulator among Plastic, Metal, Water, and Silver?
- A) Plastic
- B) Metal
- C) Water
- D) Silver
Correct Answer: A) Plastic
Q. In an AC generator, the current is ____?
- A) Direct
- B) Alternating
- C) Pulsating
- D) Static
Correct Answer: B) Alternating
Q. Highly penetrating rays are called ____?
- A) Alpha
- B) Beta
- C) Gamma
- D) X-rays
Correct Answer: C) Gamma
Q. In gases, heat is transferred through_____?
- A) Conduction
- B) Convection
- C) Radiation
- D) All
Correct Answer: D) All
Q. If the distance between the ends of a metal is increased, then the rate of flow of heat is ____?
- A) Increased
- B) Decreased
- C) Unaffected
- D) Doubled
Correct Answer: B) Decreased
Q. How many methods of heat transfer are there?
- A) 1
- B) 2
- C) 3
- D) 4
Correct Answer: C) 3
Q. Thermal conductivity of water is ____.
- A) 0.598 W/m•K
- B) 1.0 W/m•K
- C) 0.3 W/m•K
- D) 2.5 W/m•K
Correct Answer: A) 0.598 W/m•K
Q. Thermal conductivity of brass is ____?
- A) 70 W/m•K
- B) 146.87 W/m•K
- C) 120 W/m•K
- D) 200 W/m•K
Correct Answer: B) 146.87 W/m•K
Q. Thermal conductivity of 304 stainless steel is _____?
- A) 500 W/m•K
- B) 1503 W/m•K
- C) 1000 W/m•K
- D) 2500 W/m•K
Correct Answer: B) 1503 W/m•K
You may like more MCQs related to PAF initial test preparation below
Creating a Study Schedule for PAF Initial Test Preparation
Q. 1 Mega is equal to ______?
- A) 10²
- B) 10³
- C) 10⁶
- D) 10⁹
Correct Answer: C) 10⁶
Q. Sound waves are which types of waves?
- A) Transverse Waves
- B) Longitudinal Waves
- C) Surface Waves
- D) Electromagnetic Waves
Correct Answer: B) Longitudinal Waves
Q. Gamma rays are _____?
- A) A type of particle
- B) A form of electromagnetic radiation (EMR)
- C) Sound waves
- D) Thermal energy
Correct Answer: B) A form of electromagnetic radiation (EMR)
Q. Which rays have high ionization power?
- A) Beta Particles
- B) Gamma Rays
- C) Alpha Particles
- D) X-rays
Correct Answer: C) Alpha Particles
Q. Unit of current is _____?
- A) Volt
- B) Ohm
- C) Ampere
- D) Watt
Correct Answer: C) Ampere
Q. What is the definition of current?
- A) The voltage in a circuit
- B) A flow of electrical charge carriers, usually electrons or electron-deficient atoms
- C) The resistance in a circuit
- D) The energy transferred per unit time
Correct Answer: B) A flow of electrical charge carriers, usually electrons or electron-deficient atoms
Q. Definition of resistance?
- A) A measure of the voltage in a circuit
- B) A measure of the opposition to current flow in an electrical circuit
- C) A measure of energy loss in a circuit
- D) A measure of power in a circuit
Correct Answer: B) A measure of the opposition to current flow in an electrical circuit
Q. Define velocity?
- A) The speed of an object in a vacuum
- B) The direction of the movement of the body or the object
- C) The distance covered in a given time
- D) The rate of acceleration
Correct Answer: B) The direction of the movement of the body or the object
Q. Dot and cross product are equal at which angle?
- A) 0 Degree
- B) 30 Degree
- C) 45 Degree
- D) 90 Degree
Correct Answer: C) 45 Degree
Q. Rate of change of momentum is called ____?
- A) Energy
- B) Work
- C) Force
- D) Power
Correct Answer: C) Force
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Q. Joule is a _____ quantity.
- A) Vector
- B) Scalar
- C) Complex
- D) Displacement
Correct Answer: B) Scalar
Q. Sand formula is _____.
- A) NaCl
- B) H₂O
- C) SiO₂
- D) CaCO₃
Correct Answer: C) SiO₂
Q. The value of ‘g’ is _____.
- A) 9.8 m/sec
- B) 9.8 m/sec²
- C) 9.8 km/hr
- D) 9.8 m
Correct Answer: B) 9.8 m/sec²
Q. Boiling point of water is _____.
- A) 90 °C
- B) 100 °C
- C) 110 °C
- D) 80 °C
Correct Answer: B) 100 °C
Q. A capacitor _____ the charges.
- A) Produces
- B) Dissipates
- C) Stores
- D) Transmits
Correct Answer: C) Stores
Q. A convex mirror of focal length f forms an image which is 1/n times the object. The distance of the object from the mirror is:
- A) (n+1)f
- B) (n-1)f
- C) (1-n)f
- D) (n²)f
Correct Answer: B) (n-1)f
Q. Consider a concave mirror of focal length 50 cm. Where should the object be placed so that its image is twice the size of the object and inverted?
- A) 50 cm
- B) 75 cm
- C) 100 cm
- D) 25 cm
Correct Answer: B) 75 cm
Q. An object 2 cm high is placed at a distance of 16 cm from a concave mirror, which produces a 3 cm high inverted image. What is the focal length of the mirror?
- A) -6.4 cm
- B) -9.6 cm
- C) -12 cm
- D) -15 cm
Correct Answer: B) -9.6 cm
Q. An erect image 3 times the size of the object is obtained with a concave mirror of radius of curvature 36 cm. What is the position of the object?
- A) -9 cm
- B) -12 cm
- C) -15 cm
- D) -18 cm
Correct Answer: B) -12 cm
Q. An object is placed at infinity in front of the convex mirror of radius of curvature 40 cm. How far is the image behind the mirror?
- A) 10 cm
- B) 20 cm
- C) 30 cm
- D) 40 cm
Correct Answer: B) 20 cm
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