01.Hot coffee stored in a well insulated thermos flask is an example of
isolated system.
02. Work transfer between the system and the surroundings
Depends on the path followed by the system.
03.Carnot cycle has maximum efficiency for
reversible engine.
04.In an Electrolux refrigerator
Ammonia is absorbed in hydrogen.
05.A spark plug gap is kept from
0.4 to 0.9 mm.
06.Benson boiler is one of the high pressure boilers having
Three drums.
07.The draught in locomotive boilers is produced by
Steam jet.
08.Surging basically implies
Unsteady, periodic and reversed flow.
09.Phenomenon of chocking in compressor means
fixed mass flow rate regardless of pressure ratio.
10.A four-bar chain has
all turning pairs.
11.Which one of the following drives is used for a constant velocity ratio, positive drive with large centre distance between the driver and driven shafts?
Chain drive.
12.The number of degrees of freedom of an epicyclic gear train is
Two.
13.The relation between number of pairs (P) forming a kinematic chain and the number of links (l)
l = 2p –4.
14.When a nut is tightened by placing a washer below it the bolt will be subjected to
tensile stress.
15.An aluminium member is designed on the basis of
yield stress.
16.Guest's theory is used for
ductile materials.
17.The head loss in turbulent flow in pipe varies
approximately as the square of the velocity.
18.A manometer is used to measure
high pressure.
19.When a body is placed over a liquid, it will float if
gravitational force is equal to the upthrust of the liquid.
20.The point of contraflexure occurs in
overhanging beams.
21.According to lami's theorem
if the three forces acting at a point are in equilibrium, then each force is proportionalto the sine of the angle between the other two.
22.Eutectoid reaction occurs at
723ºC.
23.The process of removing the burrs of flash from a forged component in drop forging is called
Trimming.
24.Wrought iron
is a ductile material
can be easily forged or welded,
cannot stand suden and excessive shocks,
all of these.
25.18 - 4 - 1 high speed steel contains
vanadium 1%, chromium 4% and tungsten 18%.
26.In a planer
tool is stationary and work reciprocates.
27.in shaper machine
work piece is fixed at the table and tool is in reciprocating.
isolated system.
02. Work transfer between the system and the surroundings
Depends on the path followed by the system.
03.Carnot cycle has maximum efficiency for
reversible engine.
04.In an Electrolux refrigerator
Ammonia is absorbed in hydrogen.
05.A spark plug gap is kept from
0.4 to 0.9 mm.
06.Benson boiler is one of the high pressure boilers having
Three drums.
07.The draught in locomotive boilers is produced by
Steam jet.
08.Surging basically implies
Unsteady, periodic and reversed flow.
09.Phenomenon of chocking in compressor means
fixed mass flow rate regardless of pressure ratio.
10.A four-bar chain has
all turning pairs.
11.Which one of the following drives is used for a constant velocity ratio, positive drive with large centre distance between the driver and driven shafts?
Chain drive.
12.The number of degrees of freedom of an epicyclic gear train is
Two.
13.The relation between number of pairs (P) forming a kinematic chain and the number of links (l)
l = 2p –4.
14.When a nut is tightened by placing a washer below it the bolt will be subjected to
tensile stress.
15.An aluminium member is designed on the basis of
yield stress.
16.Guest's theory is used for
ductile materials.
17.The head loss in turbulent flow in pipe varies
approximately as the square of the velocity.
18.A manometer is used to measure
high pressure.
19.When a body is placed over a liquid, it will float if
gravitational force is equal to the upthrust of the liquid.
20.The point of contraflexure occurs in
overhanging beams.
21.According to lami's theorem
if the three forces acting at a point are in equilibrium, then each force is proportionalto the sine of the angle between the other two.
22.Eutectoid reaction occurs at
723ºC.
23.The process of removing the burrs of flash from a forged component in drop forging is called
Trimming.
24.Wrought iron
is a ductile material
can be easily forged or welded,
cannot stand suden and excessive shocks,
all of these.
25.18 - 4 - 1 high speed steel contains
vanadium 1%, chromium 4% and tungsten 18%.
26.In a planer
tool is stationary and work reciprocates.
27.in shaper machine
work piece is fixed at the table and tool is in reciprocating.
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