QUESTION CODE: 139 GK
more than one option are correct i.e sundaland & sunderban.
REASON: SUNDERBAN is present in INDIA but it is not biodiversity hotspot
whereas SUNDALAND is biodiversity hotspot in south east asia (not in India)
https://en.wikipedia.org/wiki/Biodiversity_hotspot
QUESTION CODE: 135 GK
first satellite launch vehicle was used in 1979. It is not mentioned whether it was success or failure
https://en.wikipedia.org/wiki/Satellite_Launch_Vehicle
QUESTION CODE :247 TECH
For delta modulation n=1
we know that bandwidth =(n*fs)/2
therefore here n is fixed hence there is no requirement of higher bandwidth whereas in PCM n varies therefore bandwidth requirement is more
QUESTION CODE: 214 TECH
MORE THAN ONE OPTION ARE CORRECT
For wideband FM Bandwidth is given by two expression
1.B.W = 2(MODULATION INDEX + 1)*MAXIMUM SIGNAL FREQUENCY
2. B.W= 2(MAXIMUM SIGNAL FREQUENCY + FREQUENCY DEVIATION)
Therefore bandwidth is proportional to modulation index and it is also more than maximum signal frequency.
QUESTION CODE: 149 TECH
more than one option are correct
for constant voltage-resistance increases by 3 times
for constant power -resistance increases by 9 times
QUESTION CODE: 111 TECH
QUESTION MISPRINT
INCORRECT: LOAD COMMUNICATION
CORRECT :LOAD COMMUTATION
QUESTION CODE: 234 TECH
independent node = 4
independent loop = 7
it is asking about independent nodes
QUESTION CODE: 202 TECH
QUESTION MISPRINT
series generator must be replaced by differential compound generator
because The differential compound generator because of their large demagnetization armature reaction are used for welding where huge voltage drop and constant current is required.
QUESTION CODE:206 TECH
Squirrel cage is more efficient
QUESTION CODE 124 TECH
electrodynamometer is transfer instrument
QUESTION CODE: 126 TECH
ALL OPTION ARE INCORRECT
P=3Vph Iph cos theta
P=3.89 WATTS
QUESTION CODE 186 TECH
for maximum efficiency core loss = copper loss
therefore I =1.414 Amp
QUESTION CODE 114 TECH
Angle between phase voltage and line voltage is 30 deg.
Above objection is from my point of view so if you agree with same then do the objection so that we can be benefited.