| Post Name | State Health Transport Officer |
|---|---|
| Department | Health Services |
| Question Paper Code | 128/2026/OL |
| Category Code | 536/2025 |
| Date of Test | 9 July 2026 |
| Exam Type | Online Examination |
| Total Questions | 100 |
1
Density of a fluid is defined as
Answer
D. Mass per unit volume
2
Specific volume is the reciprocal of
Answer
B. Density
3
The continuity equation is based on the law of conservation of
Answer
A. Mass
4
Chezy’s formula is mainly used for calculating velocity in
Answer
D. Open channels
5
Which of the following is a dynamic pump ?
Answer
C. Centrifugal pump
6
The overall efficiency of a pump is the ratio of
Answer
A. Output hydraulic power to input mechanical power
7
A U-tube Manometer works on
Answer
D. Hydrostatic law
8
According to Newton’s law of viscosity, shear stress is directly proportional to
Answer
C. Velocity gradient
9
A Venturimeter works on the principle of
Answer
A. Bernoulli’s theorem
10
Demulsibility is the property of oil to
Answer
B. Separate water quickly
11
Centrifugal Pump works on the principle of
Answer
C. Forced vortex flow
12
Reaction Turbine works on
Answer
B. Pressure energy and kinetic energy conversion
13
Which law of thermodynamics is used to measure the temperature ?
Answer
D. Zeroth law of thermodynamics
14
In a constant volume process the PVT relation will be
Answer
A. P₁/T₁ = P₂/T₂
15
The Second Law of Thermodynamics defines which of the following properties of a system ?
Answer
B. Entropy
16
Thermal efficiency of two stroke engine is less than of four stroke engine due to following reasons
Answer
A. Two-stroke engines have a lower compression ratio than four-stroke engines
17
The ratio of Brake power to Indicated power of an engine is called
Answer
B. Mechanical efficiency
18
Morse test is used to find the indicated power of following engines
Answer
C. Multi cylinder engines
19
The mechanism used to find the Brake Power of an engine.
Answer
B. Dynamometer
20
Stalling is related to following compressors
Answer
D. Axial flow compressor
21
Radiator of a car works based on the following mode of heat transfer
Answer
B. Forced convection
22
Unit of thermal conductivity.
Answer
A. W/(m·K)
23
Which of the following are the correct assumptions made in Fourier's Law of heat conduction ? 1) The heat flow is unidirectional. 2) The conduction of heat takes place in steady state condition. 3) There is internal heat generation.
Answer
B. Option 1, 2 are correct 3 is wrong
24
In a diesel engine, the process of fuel injection occurs approximately under which thermodynamic condition ?
Answer
A. Constant pressure process
25
Which of the following is a type of stress ?
Answer
A. Tensile stress
26
Poisson’s ratio is the ratio of
Answer
B. Lateral strain to longitudinal strain
27
According to Hooke’s Law, within the elastic limit
Answer
B. Stress is proportional to strain
28
Which modulus is the ratio of normal stress to longitudinal strain ?
Answer
C. Young’s Modulus
29
Which beam is fixed at one end and free at the other ?
Answer
C. Cantilever beam
30
The point beyond which a material undergoes permanent deformation is called
Answer
A. Elastic limit
31
Thermal stress is developed in a member when
Answer
A. Temperature changes and expansion/contraction is restrained
32
The force acting tangentially to a surface per unit area is known as
Answer
C. Shear stress
33
The bending moment at the free end of a cantilever beam carrying a point load at the free end is
Answer
C. Zero
34
Which of the following is a type of riveted joint ?
Answer
A. Lap joint
35
The relationship among Young’s Modulus (E), Bulk Modulus (K), and Poisson’s Ratio (μ) is
Answer
A. E = 3K(1 − 2μ)
36
The efficiency of a riveted joint is defined as
Answer
C. Strength of riveted joint / Strength of solid plate × 100
37
What is the primary function of a bearing ?
Answer
B. To reduce friction between moving parts
38
Which bearing is mainly used to support axial loads ?
Answer
C. Thrust bearing
39
Which of the following is a rolling contact bearing ?
Answer
B. Ball bearing
40
What is the main function of a governor in an engine ?
Answer
B. Control engine speed under varying loads
41
Which material contains more than 2% carbon ?
Answer
C. Cast iron
42
The bearing characteristic number is the ratio of
Answer
B. (Viscosity × Speed) / Pressure
43
The difference between the maximum and minimum speed during a cycle is known as
Answer
C. Fluctuation of speed
44
In a simple gear drive, the velocity ratio is equal to
Answer
A. Speed of driver / Speed of driven
45
Which of the following is a boiler mounting ?
Answer
C. Safety valve
46
Which heat treatment process is mainly used to soften steel and improve machinability ?
Answer
B. Annealing
47
A governor is said to be stable when
Answer
C. For every speed within the working range, there is only one radius of rotation and the radius increases with speed
48
The coefficient of fluctuation of speed is defined as
Answer
B. (Nmax - Nmin) / Nmean
49
Which of the following alloy steels is commonly used for making cutting tools due to its high hardness and wear resistance ?
Answer
C. High-speed steel (HSS)
50
The amount of fuel delivered by the injector depends upon
Answer
D. All of the above
51
Which of the following is correct about F head engine ?
Answer
C. Inlet valve is fitted as an overhead valve and the exhaust as a side valve
52
Which of the following is incorrect about antifreeze solution ?
Answer
B. Antifreeze solution has higher freezing point than water
53
_________ supports the valves and prevent them from moving in any direction other than up and down.
Answer
B. Valve guide
54
Which of the following is incorrect about thermostat valve ?
Answer
A. It permits slow engine warm-up
55
Which component of an engine controls the fluctuations in engine speed due to changes of load ?
Answer
D. Governor
56
Which of the following is not a part of diesel fuel injector ?
Answer
C. Rack
57
The drive for A.C. mechanical fuel pump is taken from
Answer
A. Camshaft
58
Which of the following statement is / are correct about engine cooling system ? (i) Radiator transfers heat from engine to the air. (ii) Inlet of the water pump connects to the radiator. (iii) Water pump is driven by the crankshaft.
Answer
A. All of these (i , ii and iii)
59
In a distributor type fuel injection pump, _______ helps to advance fuel injection timing.
Answer
B. Rotate the roller ring
60
Which of the following is commonly used as catalyst material in catalytic converter ?
Answer
A. Platinum
61
The small hole present on the body of a pintaux nozzle is known as
Answer
B. Auxiliary hole
62
Which of the following is incorrect about turbocharger ?
Answer
B. It’s compressor and turbine spin at different speeds
63
In a full-forward, Control chassis, the engine is mounted
Answer
C. Completely inside the driver’s cabin
64
The sub-frame is further supported by the main frame at
Answer
B. Three points
65
In suspension terminology “JOUNCE” is also known as
Answer
B. Compression
66
Spring rate is defined as the load required to
Answer
C. Move a spring a specified distance
67
______ Provides a pivoting joint that attaches the steering knuckle to the control arm.
Answer
D. Ball joint
68
Ackermann steering mechanism consists of
Answer
B. Turning pairs only
69
A steering system with a large gear ratio is generally
Answer
B. Less responsive
70
The upper and lower shafts in a collapsible steering column are connected using.
Answer
B. Shear pins
71
Steering axis inclination is also known as
Answer
C. King pin angle
72
The two basic types of brake calipers are
Answer
C. Fixed and Floating
73
The residual pressure in brake lines prevents
Answer
B. Air from entering the wheel cylinders
74
Wheel setback is defined as the
Answer
B. Difference in vehicle wheel base from one side to the other
75
The following statement is/are correct regarding the grooves on both sides of the friction disc clutch facing. (i) to prevent the facing from sticking to the flywheel face and pressure plate when the clutch disengages. (ii) it allows the facing to sticking to the flywheel and pressure plate when the clutch disengages. (iii) it allows the facing to sticking to the flywheel and pressure plate when the cIutch engages.
Answer
A. Only (i)
76
When considering a synchromesh gearbox, which of the following statements is/are correct regarding a synchronizing hub ? (i) The synchroniser hub is splined to the transmission output shaft. (ii) The synchroniser hub has external splines. (iii) The shift fork fit into the grooves in the synchroniser hub.
Answer
B. Both (i and ii)
77
In a torque tube type rear axle drive, which of the following is/are correct ? (i) The spring takes the weight of the body. (ii) The torque tube takes the weight of the body. (iii) The braking torque is taken by the spring. (iv) The driving thrust is taken by the spring.
Answer
D. Only (i)
78
Some front wheel drive car has noticeable torque steer tendency, which causes to (i) pull the car towards the side with the shorter half shaft. (ii) Change the caster angle. (iii) pull the car towards the side with the longer half shaft.
Answer
A. Only (iii)
79
Which of the following statement is /are true about inset wheels ? (i) The centre line of the rim coincident with the attachment face of the disc. (ii) The centre line of the rim is located outboard of the attachment face of the disc. (iii) The centre line of the rim is located inboard of the attachment face of the disc. (iv) The centre line of the rim tangent to the attachment face of disc.
Answer
B. Only (iii)
80
The purpose of sipes moulded into the ribs of tyre is/are (i) the hole which accommodates the valve for tyre inflation. (ii) the basic structure taking loads. (iii) to increase the traction ability. (iv) to provide radial support to the tyre.
Answer
D. Only (iii)
81
Which of the following statement is/are false about the torque converter ? (i) pump impeller coupled to the driving shaft. (ii) turbine runner coupled to the driver shaft. (iii) turbine runner coupled to the driven shaft. (iv) pump impeller coupled to the driven shaft.
Answer
C. Both (ii and iv)
82
While starting, which of the following solenoid windings is/are deactivated in a starter motor when the plunger disc makes contact with the solenoid terminals ? (i) Push - down winding (ii) Hold - in winding (iii) Pull - in winding (iv) Push - in winding
Answer
D. Only (iii)
83
In an electronic regulation system, the voltage output of an automobile alternator is controlled by varying. (i) the armature current through the stator. (ii) the field current through the rotor. (iii) the current through shunt winding in the Cut-out relay. (iv) the third brush control system.
Answer
B. Only (ii)
84
The critical voltage required to produce a spark across the electrodes of a sparkplug separated by a fuel charge is called (i) Pick-up voltage. (ii) Low tension voltage. (iii) Breakdown voltage. (iv) Kick-off voltage
Answer
C. Only (iii)
85
Which of the following factors is/are considered when deciding the firing order of a multi- cylinder internal combustion engine ? (i) Engine vibration. (ii) Engine cooling. (iii) Development of back pressure.
Answer
B. All of the (i, ii and iii)
86
Which of the following is/are the advantages of a distributor less ignition system over a distributor type ignition system ? (i) Decreased available time for coil saturation. (ii) Elimination of mechanical timing adjustment. (iii) Reduced radio frequency interference. (iv) Decreased time between firings.
Answer
C. Both (ii and iii)
87
The resistance that a material offers to pass the magnetic flux lines is called (i) impedance (ii) reactants (iii) reluctance (iv) capacitance.
Answer
A. Only (iii)
88
Which type of motor insurance policy is compulsory by law for every vehicle using a public road in India ?
Answer
C. Third party liability policy
89
The minimum distance required by a driver to bring the vehicle to a rest after sighting an object on the road is called
Answer
D. Stopping Sight Distance
90
Super elevation is provided on a road surface mainly to
Answer
B. Counteract centrifugal force on curves
91
In motor insurance, the Insured Declared Value of a vehicle represents the
Answer
A. Present market value taken as the maximum claim amount
92
In a Multi-Point Injection system, the component that acts as the brain and controls the quantity and timing of fuel is the
Answer
D. Electronic Control Module
93
A major advantage of the Common Rail Diesel Injection system is that the fuel injection pressure is
Answer
A. High and almost independent of engine speed
94
The oxygen (O2) sensor fitted in the exhaust pipe sends a feedback signal to the Electronic Control Module to
Answer
D. Keep the air-fuel ratio near the stoichiometric value
95
In a diesel engine, the emission of dense black smoke from the exhaust generally indicates
Answer
C. Incomplete combustion due to excess fuel
96
The Positive Crankcase Ventilation system mainly controls the emission of
Answer
C. Unburnt hydrocarbons present
97
A three-way catalytic converter is so named because it simultaneously controls which three pollutants ?
Answer
A. CO, HC and NOx
98
In a vehicle restraint system, the air bag is deployed by a signal received from the
Answer
B. Impact sensor
99
A vehicle immobilizer is an anti-theft device that
Answer
B. Prevents the engine from starting unless the correct transponder is used
100
In a series hybrid electric vehicle, the power flow arrangement is such that
Answer
D. The engine drives a generator and the electric motor drives the wheels
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