APPSC AMVI study guide
APPSC AMVI · Work through your exam, one topic at a time.
The Assistant Motor Vehicle Inspector (AMVI) credential is issued by the Andhra Pradesh Public Service Commission (APPSC) for candidates who will enforce motor vehicle law, inspect vehicles for roadworthiness, investigate accidents, and support transport administration in Andhra Pradesh. It suits engineering graduates - typically mechanical or automobile engineering - who want a field-and-office regulatory role rather than a pure design job. The APPSC AMVI study guide has 6 sections and about 2,151 words.
01General Studies and Mental Ability for APPSC AMVI
APPSC screens AMVI candidates on AP-focused general studies - Indian polity, geography, economy, history and current affairs - plus a mental ability component of competitive-reasoning standard. Polity questions cluster around the Constitution (Fundamental Rights, Articles 12–35; DPSPs, Articles 36–51), Panchayati Raj under the 73rd and 74th Amendments, and Andhra Pradesh's post-2014 administrative structure created by the AP Reorganisation Act.
333 words, about 2 min02Theory of Machines and Mechanics
A mechanism is a constrained chain of links producing a definite motion; a machine is a mechanism that also transmits force and does useful work. Degrees of freedom follow the Kutzbach (Grübler) criterion for planar mechanisms: F = 3(n − 1) − 2j − h , where n = number of links including the fixed frame, j = number of lower pairs (revolute, prismatic) and h = number of higher pairs (cam, gear, roller contact).
394 words, about 2 min03Vehicle Systems, Chassis, Transmission and Brakes
The power flow is clutch or torque converter → gearbox → propeller shaft with universal joints → final drive → differential → half shafts. A single-plate dry clutch with a diaphragm spring is the norm in cars; the release bearing must have specified free play or the clutch slips.
359 words, about 2 min04Automotive Engines, Fuels, Emissions and Electrical Systems
A four-stroke SI engine runs suction, compression, power and exhaust in two crank revolutions; the CI engine inducts air only and injects fuel near TDC. Compression ratio CR = (Vs + Vc)/Vc.
361 words, about 2 min05Motor Vehicle Act, Rules and Transport Regulations
The Motor Vehicles Act 1988, the Central Motor Vehicles Rules 1989 and the Motor Vehicles (Amendment) Act 2019 govern licensing, registration, permits, insurance and penalties in Andhra Pradesh; enforcement is by the Transport Department and police. Licensing: Section 3 requires a valid licence; age is 16 for gearless motorcycles up to 50 cc with guardian consent, 18 for motorcycles with gear and non-transport LMV, 20 for transport vehicles.
366 words, about 2 min06Road Safety, Traffic Engineering and Accident Investigation
Road safety rests on the three E's - Engineering (road and vehicle design), Enforcement (law) and Education. Key design parameters come from IRC codes: reaction time is taken as 2.5 s for stopping sight distance and 2.0 s for overtaking sight distance.
338 words, about 2 min