FPSC Jobs Assistant Engineer (E&M) Military Engineering Services MES Jobs Test MCQs Written Syllabus Past Papers PDF

Federal Public Service Commission FPSC Advertisement No. 10/2024

Vacancy Positions:

• Assistant Engineer (E&M) (BS-16) = 19 Posts

Minimum Qualification: Second Class or Grade ‘C’ Bachelor’s (04 years duration) Degree in Engineering (Electrical/ Mechanical) / B.Tech (Hons) (Electrical/ Mechanical) or equivalent qualification from a university recognized by the HEC.

Number of Vacancies: 19

Age limit: 20-28 years plus 5 years general relaxation in upper age limit.

Place of Posting: Anywhere in Pakistan

Online Application Closing Date: 21-10-2024. 

Top Jobs Test MCQs with answers for the position of Assistant Engineer (E&M) in Military Engineering Services (MES)

1. Principles of Electrical and Mechanical Engineering

Q1: What type of motor is used with hoists and cranes? Why?

Answer: DC Series Motor; it provides the required high starting torque, especially in lifting heavy weight loads.

Q2: The frequency of an AC supply is reduced to one-half its original value in an AC circuit.

Answer: The inductive reactance decreases, and if the circuit is the same, the current will also increase.

Q3: What is the purpose of a circuit breaker in an electrical distribution system?

Answer: It breaks off the current flow at a fault or overload condition for the protection of the circuit.

Q4: How does a star-delta starter reduce induction motor starting current?

Answer: The motor connections are set up in a star for a reduction in the voltages and, when in the running condition, are switched over to delta. Hence, it lowers the initial current.

3. Services of Buildings along with the HVAC Systems

Q5: Why a closed loop HVAC system necessarily requires expansion tank?

Answer: The expansion of the water upon heating should not be excessively high to let the system get destroyed so an expansion tank is placed to provide balance to water expansion.

Q6: Which of the following is the most commonly used sensor type in modern HVAC systems for indoor air quality control?

Answer: Carbon dioxide sensors; they help in the indoor air quality control through monitoring CO₂ levels and adjusting ventilation rates according to them.

4. Control Systems and Instrumentation

Q7: What is the purpose of a PID controller in an automation system?

A: The PID controller uses Proportional, Integral, and Derivative to control the desired setpoint of a process by minimizing errors with time by appropriate alterations in control output.

Q8: Why pressure transducers are used in hydraulic system?

A: Pressure monitoring and measurement inside hydraulic system for safety and operation control

5. Maintenance and Safety Procedure

Q9: Proper procedure of safe release of high voltage capacitor before maintenance:

Q10: Why lockout/tagout?

Why is it necessary for a person doing industrial maintenance work to follow lockout/tagout procedure?

Because during the procedure, the equipment shut off must be in proper order so that once started, the work will be finished without accidental energizing the equipment. Thus safety comes to the workers.

Q11: Why does the military prefer diesel generators more than gasoline generators in field deployments?

Answer: Because diesel generators are more efficient and have a longer service life under heavy loads as compared to gasoline generators; they meet the rugged requirement of military operations.

Q12: What are some issues to be considered in establishing an electrical supply system design of a remote military installation?

Answer: Reliability, maintainability, fuel availability, and robustness with regard to environmental challenges represent significant factors to ensure non-interrupted operation.

7. Real-World Problem-Solving Scenarios

Q13: For instance, for a three-phase induction motor that trips once every time it is turned on under load, likely causes?

Answer: Overload, voltage imbalance, wrong settings of protection relays or mechanical faults like bearing faults.

Q14: What is the sequence of power-up in emergency restoration of power for a military base?

Answer: Critical communication systems, medical facilities, security systems, and then non-critical loads, as required and on priority.

8. Electrical Design and Load Calculations

Q15: Which of the following factors is to be considered in sizing transformers in a new facility?

Answer: Load demand, future expansion, power quality, and efficiency requirements are the basic criteria through which the transformer can be able to meet the existing and future requirements.

Q16: What is the effect of power factor on the generator size?

Answer: Apparent power drawn increases by a low power factor. Thus, in order to meet the increased demand of current, a bigger generator has to be supplied for.