Time Left - 04:00 mins
RRB/SSC JE Electrical 2019 || Measurements Quiz 3
Attempt now to get your rank among 1225 students!
Question 1
In a three phase system power measured by using two wattmeter method and total power measured by both wattmeter is 50kW and power factor is 0.5 lagging. Reading of second wattmeter is –
Question 2
In a two wattmeter method reading of both wattmeter are 600W and 300W then find power factor if second wattmeter reading is taken after interchanging the connection of current coil –
Question 3
A 3 phase 20kVA load has power factor 0.866. If power is measured by two wattmeter method then find reading of each wattmeter when power factor is lagging –
Question 4
How many watt-seconds are supplied by a motor developing 2 hp (British) for 5 hours?
Question 5
In a balanced 3-phase circuit, the line current is 12 A. When the power is measured by two wattmeter method, one meter reads 11 kW while the other reads zero. Power factor of the load is
- 1225 attempts
- 5 upvotes
- 15 comments
Aug 14ESE & GATE EE
