Instrumentation & Control Quiz Competition (Quiz-2)

--- bridge is used to measure dielectric losses 

• Schering Bridge
• Wheatstone Bridge
• Maxwell Bridge
• Heaviside Bridge

PMMC instruments used for ---------measurement

• AC

• DC

• Both AC and DC

• Only sinusoidal AC

Which of the following points is correct regarding an Ex – NOR gate in Digital Electronics?

• It is a one – bit comparator

• It is a buffer

• It is a one – bit inverter

• It is a universal gate

Which of these pins will allow to activate and deactivate a multiplexer?

• Enable pin
• Data pin
• Selection pin

• Preset pin

Which of the following represents Reynold number for laminar flow

• Re < 2000
• Re > 4000
• Re = 3000
• Re = 5000

The essential component of a toaster is an electrical element (a resisitor) that converts electrical energy to heat energy. Current drawn by a toaster with resistance of 15 ohm at 120 V in ampere is

(a)  

The frequency of the sinusoid v(t)= 12 cos(50t + 10°) in hertz is

(a)  

The total charge entering a terminal is given by q= 5t sin(4πt) mC. Then current at t = 0.5 s in mA

• 3.896

• 31.42

• 62.70

• 80.90

..............measures velocity at a point of fluid in a stream

• Anemometer
• Pitot Static tube

• Venturi meter

• Rotameter

Which of the following represents obstruction type flow measuring systems?

• Centrifugal force system

• Rotating vane system

• Flow Nozzle Device

• Pitot tube