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HSSC Junior Engineer (Electrical) & Operator Grade-1 Electrical Group -2
📆 October 25, 2024
Total Questions: 100
81.
Which metal is known for having the highest melting point and is used in applications requiring high operating temperatures ?
[]
(a) Copper
(b) Aluminium
(c) Tungsten
(d) Silver
(e) Unattempted
Correct Answer:
(c) Tungsten
82.
Which type of wind machines have rotors with axis parallel to the direction of the wind stream?
[]
(a) Darrieus type
(b) Propeller type
(c) Savonius type
(d) None of the above
(e) Unattempted
Correct Answer:
(b) Propeller type
83.
What is the purpose of a Human- Machine Interface (HMI) in Programmable Logic Controller (PLC) systems?
[]
(a) To provide power to the Programmable Logic Controller (PLC)
(b) To enable data storage
(c) For user interaction with the Programmable Logic Controller (PLC)
(d) To increase processing speed
(e) Unattempted
Correct Answer:
(c) For user interaction with the Programmable Logic Controller (PLC)
84.
What type of motion do electrons exhibit in a conductor due to thermal effects?
[]
(a) Random motion
(b) Linear motion
(c) Circular motion
(d) Oscillatory motion
(e) Unattempted
Correct Answer:
(a) Random motion
85.
A line passes through (2, 2) and is perpendicular in the line 3x + y = 3 its y-intercepts is: 1
[]
(a) 1/3
(b) 2/3
(c) 4/3
(d) 1
(e) Unattempted
Correct Answer:
(c) 4/3
86.
What does 'load factor' indicate in power systems?
[]
(a) Ratio of average load to maximum demand
(b) Total power consumed by a system
(c) Efficiency of power generation
(d) Voltage stability in the system
(e) Unattempted
Correct Answer:
(a) Ratio of average load to maximum demand
87.
How many bytes make 1 GB ?
[]
(a) 1024 KB
(b) 1024 PB
(c) 1024 MB
(d) 1024 TB
(e) Unattempted
Correct Answer:
(c) 1024 MB
88.
What is the primary factor that causes the scattering of electron waves in metals ?
[]
(a) High temperature
(b) External magnetic fields
(c) High electrical conductivity
(d) Lattice imperfections due to impurities and atomic oscillations
(e) Unattempted
Correct Answer:
(d) Lattice imperfections due to impurities and atomic oscillations
89.
What is the depth for drilling holes in geothermal energy fields for steam and water extraction?
[]
(a) 1 km
(b) 2 km
(c) 3 km
(d) 4 km
(e) Unattempted
Correct Answer:
(c) 3 km
90.
How does a synchronous counter differ from an asynchronous counter?
[]
(a) It uses less power
(b) All flip-flops are connected to the same clock
(c) It has a higher frequency limit
(d) It uses different types of flip-flops
(e) Unattempted
Correct Answer:
(b) All flip-flops are connected to the same clock
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