Assistant Engineer Exam Solved Question Paper with Answer
Q. Which one of the following physical quantities, is not defined in the terms of force per unit area :
pressure
strain
stress
Young’s modulus
Q. The distance moved by a moving body is equal to:
area between the distance-time graph and distance axis
area between the speed-time graph and time axis
area between the distance-time graph and time axis
area between the speed-time graph and distance axis.
Q. A beaker containing water weighs 100 gm. It is placed on the pan of a balance and a piece of metal weighing 70 gm. and having a volume of 10cc. is placed inside the water in the beaker.The weight of the beaker and the metal would be :
170gm.
100gm.
160gm.
30gm.
Q. For the same kinetic energy, the momentum shall be maximum for:
electron
proton
deuteron
alpha particle
Q. The common balance works on the principle of equality of:
forces
moments of forces
masses
masses of pans
Q. A particle moves in a circle of radius R with a constant speed under a centripetal force F.The work done in completing a full circle is:
2RF
?R2F
2?RF
Zero
Q. When two quantities are plotted on the graph paper against each other and the result so obtained is a st. line, then
Both the quantities are equal
The quantities are inversely proportional to each other
Sum of both is zero
The quantities are proportional to each other
Q. What is the order of magnitude of 260°?
103
104
102
10
Q. The maximum value of g is:
At the poles
At the top of the Mount Everest
At the equator
Below the sea level
Q. A fixed volume of gas at 27°C exerts a pressure of 750 mm. If the gas is heated to a pressure of 1500mm., temperature must be:
600°C
327°C
54°C
13.5°C
Q. A body of mass 2 kg acted upon by a constant force, travels a distance of 3 metres in the first second and a further distance of meter in the next second. The force acting on the body is?
12 Newtons
8 Newtons
4 Newtons
1 Newton
Q. Two forces each equal to P acting at a point have no resultant. The angle between the two forces must be equal to:
180°
90°
0°
120°
Q. A jet engine works on the principle of:
conservation of energy
conservation of momentum
conservation of mass
conservation of temperature
Q. A sharp knife cuts much better than a blunt one because?
Area of sharp knife is much less than the area of the blunt one
sharp knife is brighter
sharp knife is colder
sharp knife is costly
Q. A man carries a heavy box on his head on a horizontal plane from one place to another. In this he does?
maximum work
no work
negative work
minimum work
Q. The bob of a second’s pendulum is replaced by another bob of double mass. The new time period will be:
4 sec.
2 sec.
1 sec
3 sec.
Q.A device for measuring temperatures at a distance is
gas thermometer
mercury thermometer
radiation
maximum-minimum thermometer
Q. A piece of ice is floating in a concentrated solution of common salt (in water) in a pot. When ice melts completely, the level of solution will:
go up
remain the same
go down
first go up then go down
Q. A radioactive source has a half-life of 30 days. During a period of 90 days the fraction of atoms that have decayed would be
100%
87.5%
64%
50%
Q. A black body emits:
radiations of all wavelengths
no radiations
radiations of only one wavelength
radiations of selected wavelengths
Q. A near sighted person cannot see distinctly beyond 50 cm. from his eye. The power in diopter of spectacle lenses which will enable him to see distant objects clearly is
50
-50
2
-2
Q. Size of a nucleus is of the order of?
10-18m
10-14m
10-10m
10-6m
Q. The freezing point on a thermometer is marked as 20° and the boiling point as 150°C. A temperature of 60°C on this thermometer will be read as:
40°
65°
98°
110°
Q. In isothermal expansion of an ideal gas:
heat content remains constant
temperature remains constant
both heat content and temperature remain constant
pressure and temperature of the gas remain constant
Q. A man standing between two cliffs hears the first echo of a sound after 2 sec.and the second echo 3 sec. after the initial sound. If the speed of sound be 330 m/sec. the distance between the two cliffs should be
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