During Inelastic collision of two particles, which one of the following is conserved?
Question 2
The efficiency of a Reversed Carnot engine is 65%. If the direction of cycle is reversed, then the value of COP of reversed Carnot cycle will be:
Question 3
Which of the following is correct safe boundary for given theories
Question 4
The force on a particle of mass 1 kg is 2 kgf, the acceleration of the particle (in m/s2) is
Question 5
A particle while sliding down a smooth plane of 19.862 m length acquires a velocity of 19.86 m/sec. The inclination of plane is:-
Question 6
The apparent weight of a man in moving lift is less than his real weight when it is going down with _________.
Question 7
An elevator weighing 1000kg attains an upward velocity of 4 m/sec in two seconds with uniform acceleration. The tension in the supporting cables will be(g=10m/s2):-
Question 8
Which of the following is a destructive testing technique?
Question 9
The cracks in welding may be caused by the following except
Question 10
The best suited process to thick weld in single run is ___________.
Question 11
In brazing process the melting takes place in
Question 12
Two balls of same material and finish have their radius in the ratio of 2:1 and both are heated to same temperature and allowed to cool by radiation. Rate of cooling by big ball as compared to smaller one will be in the ratio of
Question 13
In a gas turbine plant, regeneration is done to
Question 14
The effect of considering friction in steam nozzle for the same pressure ratio leads to
Question 15
In the carburetor, high and low pressure is created with the help of:
Question 16
A Bell-Coleman air refrigeration cycle works as a reversed
Question 17
Efficiency of superheat Rankine cycle is more as compared to normal Rankine cycle as:
Question 18
For a diesel cycle, the clearance ratio is 10% and cut off takes place at 5% of stroke. The efficiency of the cycle is ________ %.
Question 19
For an Otto cycle, the efficiency of the cycle is 54%. The temperature at the start of compression is 15 °C. The temperature after compression is ____ K.
Question 20
Consider the beam shown in figure. The beam is simply supported at its left end A and fixed at its right end B. It carries a load that varies in intensity from zero at support A to ‘w’ at support B according to the relation . The reaction component at A is
Question 21
A body A of weight 10 kg with its C.G. 25 cm from the axis of rotation is to be balanced by another body B of weight 5 kg. The radius at which the C.G. of weight B should be placed is
Question 22
In case of a horizontal beam loaded under bending, the point of inflexion or contra flexure corresponds to a point on the beam, where
Question 23
Grey cast iron has ___________.
Question 24
A ball is thrown up. The sum of kinetic and potential energies will be maximum at
Question 25
The stream function for a two dimensional flow is given by Ψ= 4xy. The velocity at (3,3) is.
Question 26
The temperature reached in Plasma-Arc welding is nearly
Question 27
The power source used in GTAW process is of
Question 28
When the Brayton cycle working in the pressure limits of p1 and p2 is reversed and operated as a refrigerator, what is the ideal value of COP for such a cycle?
Question 29
When a body slides down an inclined surface, the acceleration (f) of the body is given by:-
Question 30
The amount of heat flow through a body by conduction is ______.
Question 31
For discharging large quantity of liquid, the pumps are connected in
Question 32
The length parameter used in defining a Froude no. applicable to channel flow is
Question 33
If the number of jets in Pelton turbine is increases to 4, then specific speed is increased by factor of______.
Question 34
Which of the following is not true about Prandtl Number?
Question 35
A composite wall is made of two layers of same thickness L and having same thermal conductivity K. The surface areas normal to the direction of heat flow is also equal. The equivalent thermal conductivity for the composite wall will be:-
Question 36
The desirable amount of fluoride ions in potable waters for optimal dental health is:
Question 37
The major green house gases contributing in global warming are
Question 38
When the measured and standard reference pressure level becomes equal, the sound pressure level (SPL) is equivalent to
Question 39
If an entity appears in only one relationship then it is:
Question 40
Copper wire is an example of –
Question 41
Which of the following is not an editor?
Question 42
Which of the following is related to upwelling off the coasts of Peru and Ecuador?
Question 43
Which of the following is used for measurment of high temperature
Question 44
Who Invented Ceiling fan ?
Question 45
What is the Freezing point of water?
Question 46
What is the accepted average Calorie requirement for rural area in India?