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HSSC ALM (31-12-2023)
📆 November 13, 2024
Total Questions: 100
81.
The direction of force in a motoring action is determined by:
(a) Fleming's right hand rule
(b) Fleming's left hand rule
(c) End rule
(d) Right hand thumb rule
(e) Unattempted
Correct Answer:
(b) Fleming's left hand rule
82.
The shape of warning traffic sign is:
(a) Circular
(b) Square
(c) Rectangular
(d) Triangular
(e) Unattempted
Correct Answer:
(d) Triangular
83.
The simplified form of tan⁻¹(y/x) - tan⁻¹(x/y) is equal to:
(a) 0
(b) π/4
(c) π/2
(d) π
(e) Unattempted
Correct Answer:
(b) π/4
84.
The device that converts optical energy into electrical energy is:
(a) LED
(b) Photo detector
(c) Solar cell
(d) PIN diode
(e) Unattempted
Correct Answer:
(c) Solar cell
85.
__________ is a joint formed by joining two pieces of metal edge to edge.
(a) Lap joint
(b) Butt joint
(c) Tee joint
(d) Corner joint
(e) Unattempted
Correct Answer:
(b) Butt joint
86.
Which of the following is the ideal value of earthing resistance used for large power stations?
(a) 1 ohm
(b) 0.5 ohm
(c) 5 ohm
(d) 10 ohm
(e) Unattempted
Correct Answer:
(b) 0.5 ohm
87.
Among five characteristics of big data, __________ represents the rate at which the data under consideration are being generated and stored.
(a) Volume
(b) Velocity
(c) Variety
(d) Veracity
(e) Unattempted
Correct Answer:
(b) Velocity
88.
Fuse is always connected in __________ to the circuit.
(a) Parallel
(b) Neutral
(c) Series
(d) No such specification
(e) Unattempted
Correct Answer:
(c) Series
89.
The sides of an equilateral triangle are increasing at the rate of 4cm/sec. The rate at which its area is increasing, when the side is 14cm.
(a) 10 √3 cm²/sec
(b) 14 √3 cm²/sec
(c) 28 √3 cm²/sec
(d) 14 3cm²/sec
(e) Unattempted
Correct Answer:
(c) 28 √3 cm²/sec
90.
In 3 phase systems, 3 voltages have the same magnitude and frequency but with a phase difference of ........... degrees:
(a) 30
(b) 60
(c) 90
(d) 120
(e) Unattempted
Correct Answer:
(d) 120
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