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Quiz 6
Mdcat-past-papers - NMDCAT Quiz
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Board: NMDCAT |
101. In step-up transformer, current across the secondary:
Increases
Decreases
Remain constant
Does not produce at all
102. Which is correct relation related to transformer?
Ns/Np = Vs/Vp
NsNp = Vs/Vp
Ns/Np = Vp/Vs
VsIp = VpIs
103. Ripple factor of full wave rectifier is:
1
1.21
0.48
0.51
104. There are initially 400 atoms in a radioactive substance. What would be the number of atoms after 3 half-lives?
25
50
200
400
105. Alpha particle has same electrons as:
H
H⁺
He
H₂
106. Positive rays are also called:
X-rays
Gamma rays
Alpha rays
Beta rays
107. High speed beta rays are:
Electron
Positron
Electron & Positron
Proton
108. While using radiation therapy, cancerous thyroid is treated with:
Carbon
²³⁵Uranium
Thorium
Iodine-131
109. Proton is made up of ----- quarks:
1 up, 2 down
2 up, 1 down
2 up, 2 down
1 up only
110. What is the value of up quark?
0.666666667
0.333333333
-0.666666667
-0.333333333
111. Number of quarks in hydrogen atom are:
1
3
5
7
112. Number of quarks are:
2
4
6
8
113. The cells which play very important role in developing immunity are:
Monocytes
Neutrophil
Lymphocytes
Thrombocytes
114. Regarding structure of human heart, Chordae tendinae are present in:
Atria
Pulmonary valve
Ventricles
Aortic valve
115. In human heart, the left atrium receives
The superior vena cava
The coronary sinus
The inferior vena cava
The four pulmonary veins
116. The contraction of papillary muscles is responsible for:
contraction of bicuspid valve
tricuspid valve
Mitral valve contraction
All of these
117. Chordae tendinae are present in ........ part of heart:
Aorta
Atrium
Right ventricle
In both ventricle
118. Which node of heart control heart rate?
SA node
AV node
Purkinje fibers
all of above
119. Which of following blood vessels have the highest pressure of blood:
Aorta
Pulmonary arteries
Pulmonary veins
Vena cava
120. The only vein in human body carrying oxygenated blood is :
Femoral
Pulmonary
Renal
iliac
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