SPSC – Sindh Public Service Commission 2021 Past Paper with Answers

Practice the SPSC – Sindh Public Service Commission 2021 past paper with 423 solved MCQs, answers and topic coverage.

423 solved MCQs across 8 approved papers

SPSC - ASI Past Paper 2021 (Morning)SPSC - ASI · 2021 SPSC - Combined Competitive Examination Past Paper 08-08-2021SPSC - Combined Competitive Examination · 2021 SPSC - Lecturer Botany Past Paper 2021 (Evening)SPSC - Lecturer Botany · 2021 SPSC - Lecturer Botany Past Paper 2021 (Morning)SPSC - Lecturer Botany · 2021 SPSC - Lecturer Chemistry Past Paper 2021 (Evening)SPSC - Lecturer Chemistry · 2021 SPSC - Lecturer Chemistry Past Paper 2021 (Morning)SPSC - Lecturer Chemistry · 2021 SPSC - Lecturer Physics Past Paper 2021 (Evening)SPSC - Lecturer Physics · 2021 SPSC - Lecturer Physics Past Paper 2021 (Morning)SPSC - Lecturer Physics · 2021

Which of the following organization was established in November 1945?Answer: UNESCO The Black Forest is located in which country?Answer: Germany The purpose of a moderator in a nuclear reactor is to ______?Answer: Slow down fast neutrons to increase the probability of capture by uranium If dark matter did not exist it is likely that ______?Answer: The universe would begin contracting soon A 20-F capacitor is charged to 200V. It's stored energy is _______?Answer: 40000 J A standing wave ______?Answer: Can be constructed from two similar waves travelling in opposite directions Two uniform spheres are pivoted on horizontal axes that are tangent to their surfaces. The one with the longer period of oscillation is the one with _______?Answer: The larger radius One revolution is the same as ______?Answer: 2π rad The momentum of an object at a given instant is independent of its ______?Answer: Acceleration The amount of work required to stop a moving object is equal to ______?Answer: The kinetic energy of the object A line drive to the short stop is caught at the same height as it was it was originally hit. Over it's entire flight the work done by gravity and the work done by air resistance, respectively are _____?Answer: Zero; negative An object moving in a circle at constant speed ______?Answer: Has an acceleration of constant magnitude A ball is thrown upward into the air with a speed that is greater than terminal speed. On the way up it shows and after it's speed equals the terminal speed but before it gets to the top of its trajectory ____?Answer: It continues to slow down A feather and a lead ball are dropped from the rest in vacuum on the moon. The acceleration of the feather is ______?Answer: The same as that of the lead ball What is the internal energy of a system?Answer: The energy of the atoms of the system Wheatstone bridge is ______?Answer: Circuit A Wheatstone bridge is an electrical circuit used to measure an unknown electrical resistance by balancing two legs of the bridge circuit. It consists of four resistors—two known, one unknown, and one variable—and a sensitive ammeter (or galvanometer). The bridge is balanced when the variable resistor is adjusted so that no current flows through the ammeter, allowing the unknown resistance to be calculated with high precision using a simple formula.Answer: 47000 A stone is projected vertically upwards from the ground at an initial speed of 15 m/s air resistance is negligible. What is the maximum height reached by the stone?Answer: 11 m If the mass of a particle is zero its speed must be ______?Answer: c Light from some stars shows an apparent change in frequency because of ______?Answer: Relative motion A virtual image is one _______?Answer: From which light rays diverge but do not pass through For an electromagnetic wave the direction of the vector EXB gives _____?Answer: The direction of the wave propagation Lenz' Law can explain _____?Answer: Diamagnetism only A square loop of wire lies in the plane of the page. A decreasing magnetic field is directed into page. The induced current in the loop is ____?Answer: Counterclockwise A constant current is tent through a helical coil. The coil ______?Answer: Tends to get shorter A hollow metal sphere is charged to a potential V. The potential at its center is _____?Answer: V The sweetest sugar is ______?Answer: Fructose Which of the following instrumental component is not required in atomic emission spectrometer?Answer: Monochromator Following properties will decrease with increase in temperature except?Answer: Vapor pressure What is the value of 89.0°C on the Kelvin scale?Answer: 362 K