Question19:-Among the following which is the book of Herman Gundert 7
A:-Puthan Pana
B:-Mishiha Charitham
C:-Sathyaveda Itihasam
D:-Janova Parvam
Correct Answer:- Option-C
Question20:-The Araya Samajam was founded by
A:-Sahodaran Ayyappan
B:-Pandit Karuppan
C:-Ayyankali
D:-Ayya Vaikunda Swamikal
Correct Answer:- Option-B
Question21:-Coating of fluorescent lamps
A:-Reduces glare
B:-Converts UV rays to visible light
C:-Converts visible light to UV rays
D:-Converts visible light to IR rays
Correct Answer:- Option-B
Question22:-If the supply frequency of a 4 pole induction motor is 50 Hz and that of rotor induced emf is 1.5 Hz, at what
speed the motor is running 7
A:-1500 rpm
B:-1490 rpm
C:-1455 rppm
D:-1425 ಗಾಗಾ
Correct Answer:- Option-C
Question23:-Calculate the average value of a sinusoidal voltage with a maximum value of 100 V.
A:-63.66 V
B:-70.71V
C:-31.84V
0:-141.4 ४
Correct Answer:- Option-A
Question24:-A coil consists of 700 tums and a current of 10 A on the coil gives rise to a flux of 1.2 mWb. Find the voltage
induced in the coil if the current is reversed in 0.02 second.
&:-0.9 mV
B:-1.43 mV
C:-1.96 mv
D:-1.68 mV
Correct Answer:- Option-D
Question25:-The open circuit test on transformer will provide the value of
A:-Core loss
B:-Full load Cu loss
C:-Cu loss at half load
D:-Total full load loss
Correct Answer:- Option-A
Question26:-As per IS classification, the minimum compressive strength of a first class brick should be
A:-75 Ko/ em™(2)
8:-100 Kg/"em~(2)"
C:-125 Ko/ em™(2)°
மயா
Correct Answer:- Option-B
Question27:-The workability of concrete is assessed through
1. Slump test
2. Compaction factor test

3. Setting time of cement
4. Le-Chatelier's apparatus

A:-land 2
B:-2 and 3
C:-3and 4
0:-4 1
Correct Answer:- Option-A