Two bulbs of rating 230V, 60W, and 230V, 100W are connected in parallel across supply mains, Identify the correct statement The 60W bulb will glow brighter Neither bulb will glow The 100W bulb will glow brighter Both will glow equally bright TRUE ANSWER : ? YOUR ANSWER : ?
With the current direction marked in the circuit shown, the net voltage applied is V1 −(V2 − V1) (V2 − V1) V2 TRUE ANSWER : ? YOUR ANSWER : ?
In a capacitor start single phase induction motor the current in the: Supply lines lead the voltage The main winding leads the voltage Starting winding leads the voltage Starting winding lags the voltage TRUE ANSWER : ? YOUR ANSWER : ?
Which motor is referred to as a universal motor? Series Single-phase induction Synchronous Shunt TRUE ANSWER : ? YOUR ANSWER : ?
A three-phase induction machine, when it is operating like a motor, the range of slip is given by −1 > s > −2 0 ≤ s ≤ 1 1 < a < 2 0 > s > −1 TRUE ANSWER : ? YOUR ANSWER : ?
In an AC network, the load connected is (10 + j10). The phase relation between the voltage applied and the current through the load is: Voltage leads current by 45° Voltage and current are in phase with each other Voltage lags current by 30° Voltage lags current by 45° TRUE ANSWER : ? YOUR ANSWER : ?
The amount of AC content present in the DC output of a rectifier is given by Peak factor Ripple factor Power factor Form factor TRUE ANSWER : ? YOUR ANSWER : ?
A synchronous motor runs at 600rpm, which of the following case is true? P = 10, f = 60 Hz P = 12, f = 60 Hz P= 12, f = 50 Hz P = 8, f = 50 Hz TRUE ANSWER : ? YOUR ANSWER : ?