IIT JEE Main 2017 (IIT Joint Entrance Exam – Main) JEE Main Online Mock Practice Test.
JEE Main Engineering Test MCQ Questions Answers for the admission in B.tech: This mock test having 25 question each, with four choices. On each click on answers system will tell you where the answers is correct or incorrect. You can view this JEE Main Test question are available for Physics and Chemistry details at the end of the quiz. You can also download JEE Main Previous Year Question Papers.
This JEE Main Entrance Exam questions answers are applicable for any kind of engineering entrance and B.Arch Entrance exam. You can practice as much as you can to gather knowledge of how to answers JEE Main Test critical type papers in short time and this can be a big factor for cracking All India Joint Entrance level exam.
JEE Main Online Mock Practice Test
JEE Main Online Practice Test  Physics
Question 1 
1:2:3  
1:3:5  
1:1:9  
1:8:18 
Question 2 
the intensity of the sound heard at the first resonance was more than that at the second resonance  
the prongs of the tuning fork were kept in a horizontal plane above the resonance tube  
the amplitude of vibration of the ends of the prongs is typically around 1 cm  
the length of the aircolumn at the first resonance was somewhat shorter than 1/4th of the wavelength of the sound in air 
Question 3 
directly proportional to L  
directly proportional to t  
Independent of L  
independent of t 
Question 4 
0.02 mm  
0.05 mm  
0.1 nun  
0.2 mm 
Question 5 
8.50 kHz  
8.25 kHz  
7.75 kHz  
7.50 kHz 
Question 6 
250 m/s  
250J m/s  
400 m/s  
500 m/s 
Question 7 
9 m/s  
12 m/s  
16 m/s  
21.33 m/s 
Question 8 
the process during (1w path A —, B is isothermal  
heat flows out of the gas during the path B — C — 1)  
work done during the path A B , C is zero  
positive work is done by the gas in the cycle ABCDA

Question 9 
pressure and temperature are both high  
pressure and temperature are both low  
pressure is high and temperature is low  
pressure is low and temperature is high 
Question 10 
5 grams  
10 grams  
20 grains  
40 grams 
Question 11 
10.2 ohm  
10.6 ohm  
10.8 ohm  
11.1 ohm 
Question 12 
0.9%  
2.4%  
3.1%  
4.2% 
Question 13 
4  
3  
2  
1 
Question 14 
The angular momentum of the charge —q is constant  
The linear momentum of the charge —q is constant  
The angular velocity of the charge q is constant  
The linear speed of the charge —q is constant 
Question 15 
the bulb glows dimmer  
the bulb glows brighter  
total impedance of the circuit is unchanged  
total impedance of the circuit increases 
Question 16 
virtual and at a distance of 16 cm from the mirror  
real and at a distance of 16 cm from the mirror  
virtual and at a distance of 20 cm from the mirror  
real amid at a distance of 20 cm from the mirror 
Question 17 
0%  
20%  
75%  
80% 
Question 18 
of the same frequency and with shifted mean position.  
of the same frequency and with the same mean position.  
of changed frequency and with shifted mean position.  
of changed frequency and with the same mean position. 
Question 19 
linear momentum of the system does not change in time kinetic  
energy of the system does not change in time  
angular momentum of the system does not change in time  
potential energy of the system does not change in time 
Question 20 
Error T in measuring T. the time period. Is 005 seconds  
Error / T in measuring T. the time period, is 1 second  
Percentage error in the determination of g is 5%  
Percentage error in the determination of g is 2.5% 
Question 21 
4.50 J  
7.50 J  
5.06 J  
14.06 J 
Question 22 
Restoring torque in case A = Restoring torque in case B  
Restoring torque in case A < Restoring torque in case B  
Angular frequency for case A > Angular frequency for case B.  
Angular frequency for case A 
Question 23 
If the electric field due to a point charge varies as r25 instead of r2, then the Gauss law will still be valid.  
The Gauss law can be used to calculate the field distribution around an electric dipole.
 
If the electric field between two point charges is zero somewhere, then the sign of the two charges is the same.  
The work done by the external force in moving a unit positive charge from point A at potential VA to point B at potential V8 is (VB — VA). 
Question 24 
(42. 56)  
(48, 48)  
(66, 33)  
(78, 39) 
Question 25 
Total momentum of the system is 3 kg ms1  
Momentum of 5 kg mass after collision is 4 kg ms  
Kinetic energy of the centre of mass Is 0.75 J  
Total kinetic energy of the system is 4 J 
List 
JEE Main Online Practice Test  Chemistry
Question 1 
NO  
NO4  
CN.  
N2 
Question 2 
0  
1  
2  
3 
Question 3 
electrolytic reduction  
roasting followed by reduction with carbon
 
roasting followed by’ reduction with another metal  
roasting followed by selfreduction 
Question 4 
alcoholic KOH  
alcoholic KOH followed by NaNH2  
aqueous KOH followed by NaNH2  
Zn/CH3OH 
Question 5 
Statementi is True, Staternent2 is True; Statement2 is a correct explanation for Statementi  
Statementi is True; Statement2 is True; Statement2 is NOT a correct explanation for Statementi  
Statementi is True, Statement2 is False  
Statementi is False, Statement2 is True

Question 6 
3  
4  
5  
6 
Question 7 
Statementi is True, Statcment2 is True; Statement2 is a correct explanation for Statementi  
Statementi is True, Statement2 is True; Statement2 is NOT a correct explanation for Statementi  
Statementi is True, Statement2 is False  
Statementi is False, Stat.ement2 is True

Question 8 
25  
33  
50  
75 
Question 9 
Statementi is True, Statement2 is True; Statement2 is a correct explanation for Statementi  
Statementi is True, Statement2 is True; Statement2 is NOT a correct explanation for Statementi  
Statementi is True, Statement2 is False  
Statementi is False, Statement2 is True 
Question 10 
0.5  
1  
2  
3 
Question 11 
Statementi is True, Statement2 is True; Statement2 is a correct explanation for Statementi  
Statementi is True, Statement2 is True; Statcmcnt2 is NOT a correct explanation for Statementi  
Statementi is True, Statement2 is False  
Statementi is False, Statement2 is True 
Question 12 
StatementI is True, Statement2 is True; Statement2 is a correct explanation for Statementi  
Statementi is True, Statcment2 is True; Statement2 is NOT a correct explanation for Statementi  
Statementi is True, Statemcnt2 is False  
Statementi is False, Statement2 is True 
Question 13 
variable radii and a fixed centre at (0, 1)  
variable radii and a fixed centre at (0, —1)  
fixed radius 1 and variable centres along the xaxis  
fixed radius 1 and variable centres along the yaxis 
Question 14 
Statementi is True, Statemcnt2 is True; Statement2 is a correct explanation for Statementi  
Statementi is True, Statement2 is True; Statement2 is NOT a correct explanation for Statementi  
Statementi is True, Statement2 is False  
Statementi is False, Statement2 is True 
Question 15 
360  
192  
96  
48 
Question 16 
Statementi is True, Statement2 is True; Statement2 is a correct explanation for Statementi  
Statementi is True, Statement2 is True; Statement2 is NOT a correct explanation for Statementi  
StatementI is True, Statement2 is False  
StatementI is False, Statement2 is True 
Question 17 
Statement1 is True, Statoment2 is True; St.atement2 is a correct explanation for Statement1  
Statement1 is True, Stat.ement2 is True; Statemcnt2 is NOT a correct explanation for Statement1  
Statement1 is True, Statement2 is False
 
Statement1 is False, Statement2 is True 
Question 18 
Statementi is True, Statement2 is True; Stat..ement2 is a correct explanation for Statementi  
Statementi is True, St.atement2 is True; Statement2 is NOT a correct explanation for Statementi  
Statementi is True, Statement2 is False  
Statementi is False, Statement2 is True 
Question 19 
Statement1 is True, Statement2 is True; Statement2 is a correct explanation for Statement1  
Statement1 is True, Statement2 is True; Statcment2 is NOT a correct explanation for Statement1  
Statement1 is True, Statement2 is False
 
Statement1 is False, Statement2 is True

Question 20 
low reactivity with metal  
ability to lower the melting point of metal  
flammability  
high calorific value 
Question 21 
Statementi is True, Statement2 is True; Statement2 is a correct explanation for Statementi  
Statementi is True, Statement2 is True; Statement2 is NOT a correct explanation for Statementi  
StatementI is True, Statement2 is False  
Statementi is False, Statement2 is True 
Question 22 
linear  
planar  
pyramidal  
Tshaped 
Question 23 
no point  
one point  
two points  
more than two points 
Question 24 
oxidizing  
reducing  
unreactive  
strongly basic 
Question 25 
0.5  
1.0  
2.0  
3.0 
List 
 [sb_parent]
[sb_child_list]
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