Let r1 and r2 be the roots of quadratic equation x² + 5x + 6 = 0, then which of the following is NOT true?
Anonymous Quiz
17%
1/r1 + 1/r2 = -5/6
67%
r1² + r2² = -13
17%
r1r2 = 6
0%
r1 + r2 = -5
Consider the set A= {1, 3, 5, 7, 9, 11}, then which of the following is true about the number of subsate of A and the number of proper subsate of A?
Anonymous Quiz
68%
The number of subsate of A is 2⁶.
16%
The number of proper subsate of A is 2⁶
12%
The number of subsate of A is 2⁶ -1.
4%
The number of proper subsate of A is 2⁶ + 1.
Maths (Natu) 2016 UEE Join us @qubeeacademy .pdf
1.4 MB
Maths (Natural ) 2016 UEE
Credit: Channel Members (Thank you)
English, Maths, Aptitude, chemistry, physics Biology, Geography, History and Economics 👇👇👇👇
@maths_group11
@maths_group11
Credit: Channel Members (Thank you)
English, Maths, Aptitude, chemistry, physics Biology, Geography, History and Economics 👇👇👇👇
@maths_group11
@maths_group11
2016 Aptitude UEE Natural Join us @qubeeacademy .pdf
2 MB
2016 Aptitude UEE Natural
An effort is 200N is applied on to a wedge of 4cm thick and 12cm long to split a log of 500N into parts. Then what is the efficiency of the wedge?
Anonymous Quiz
41%
83.33%
27%
75%
32%
80. 34%
0%
66.67%
Which simple machine can not be used to increase force?
Anonymous Quiz
15%
Lever
24%
Wheel and axle
48%
Fixed pulley
13%
Movable pulley
❤3
A 10cm long and 2cm wide metal wedge is used to split a wood. What is the velocity ratio of the wedge?
Anonymous Quiz
7%
3
37%
0.2
50%
5
7%
20
A screw shaft has a diameter of 4cm and its adjacent threads are 0.314cm apart. What is the velocity ratio of the screw?
Anonymous Quiz
17%
10
50%
20
13%
30
21%
40
If an inclined plane of 4m length and 1m height has an efficiency of 0.5, what is its mechanical advantage?
Anonymous Quiz
6%
3
76%
2
15%
5
3%
6
Which one of the following statement is true about the classes of lever in simple machines?
Anonymous Quiz
50%
In 2nd class lever, load is located between effort and fulcrum.
22%
In 3rd class lever, fulcrum is located between load and effort.
22%
In 1st class lever, effort is located between fulcrum and load.
6%
In 2nd class lever, VR is less than MA.
Given GCF(18,x) = 6 and LCM (18, x) = 72 then what is the value of "x"?
Anonymous Quiz
15%
26
23%
12
57%
24
4%
18
👍4❤2
Which one of the following statement is true about simple machines?
Anonymous Quiz
17%
If the machine is speed multipliers, then its VR > 1 due to its distance moved by load is large.
20%
If the machine is force multipliers, then its MA is greater than VR due to its load is large.
20%
If the machine has no energy loses, its efficiency is greater than 1 due to its MA is equal to VR.
43%
If the machine is force multipliers, its VR > 1 due to its distance moved by load is less.
If the efficiency of one machine is 100%, then which one of the following is not true?
Anonymous Quiz
3%
Its velocity ratio is equal to MA.
12%
Its IMA is equal to its AMA.
35%
There is no energy loses in the machine.
50%
The types of machines must be inclined plane, screw, and wedge to get 100% efficiency.
🥰2
A 200N force is required to be applied at one end of 1m long lever. If the distance from the effort to fulcrum is 80cm, inorder to lift a load of 600N placed at the other end. What is the efficiency of the lever?
Anonymous Quiz
31%
83%
42%
75%
19%
17%
8%
25%
Which one of the following is NOT true about pulley systems?
Anonymous Quiz
44%
Fixed pulley has velocity ratio of 2.
14%
Movable pulley has velocity ratio of 2.
28%
Compound pulley is a combination of fixed and movable pulley.
14%
Fixed pulley has no mechanical advantage.