ইঞ্জিনিয়ারিং মেকানিক্স MCQ
101. Which of the following is the vector quantity?
Angular displacement
Angular velocity
Angular acceleration
All of these
102. The forces, which meet at one point, but their lines of action do not lie in a plane, are called-
coplanar non-concurrent forces
non-coplanar concurrent forces
non-coplanar non-concurrent forces
intersecting forces
103. Which of the following is not a scalar quantity?
Time
Mass
Volume
Acceleration
104. The resultant of the following three couples 20 kg force, 0.5 m arm, + ve sense 30 kg force, 1 m arm - ve sense 40 kg force, 0.25 m arm, + ve sense having arm of 0.5 m will be-
20 kg. (-ve) sense
20 kg. (+ve) serse
10 kg. (+ve) sense
10 kg. (-ve) sense
105. পুলির প্রথম পদ্ধতির জন্য ভেলোসিটি রেশিও –
n
n²
2^n
2^n -1
106. Which of the following is a scalar quantity?
Velocity
acceleration
volume
force
107. Which one is vector?
work
energy
speed
force
108. মেশিনের উত্তোলনে সর্বোচ্চ দক্ষতা-
1/m
V.R/m
m/V.R
1/m × V.R
109. একটি ফ্রেম স্ট্রাকচার সঠিক হবে, যবাহুসংখ্যা (2j - 3) এর……
সমান
কম
বেশি
কোনটিই নয়
110. 1kg force equal-
1.02N
9.8 niec
9.8N
1.2N
111. Two force P and working in the same direction. Then the total force is
P+Q
R
P-Q
P/Q
112. Two non-collinear parallel equal forces acting in opposite direction-
balance each other
constitute a moment
constitute a couple
constitute a moment of couple
113. Which of the following is not a vertor quantity?
Weight
Velocity
Acceleration
Force
114. পূর্ণাঙ্গ ট্রাস নির্ণয়ের সূত্র কোনটি?
j = 2n – 3
n = 2j - 3
n = 3 - 2j
n = 3j - 2
115. যে-সকল লোড বিমের একটি নির্দিষ্ট বিন্দুতে ক্রিয়া করে, তাকে লোড বলে।
কেন্দ্রীভূত
সমভাবে বিস্তৃত
অসমভাবে বিস্তৃত
কোনোটিই নয়
116. বস্তুর উপর বলসমূহ কয়ভাবে ক্রিয়া করে?
৯ ভাবে
৮ ভাবে
৭ ভাবে
১০ ভাবে
117. According to Lami's theorem-
three forces acting at a point will be in equilibrium
three forces acting at a point can be represented by a triangle, each side being proportional to force
if three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium
if three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two
118. If a number of forces act simultaneously on a particle, it is possible-
not a replace them by a single force
to replace them by a single force
to replace them by a single force through CG
to replace them by a couple
119. The resultant of two forces P and Q acting at an angle is
√P ² + Q ² + 2PQ sinθ
√P ² + Q ² + 2PQcosθ
√P ² + Q ² -2PQ sinθ
√P ² + Q ²- 2PQcosθ
120. The resultant of two force P & Q Such that P >Q) acting along the same straight line but in opposite direction is given by-
P+Q
P-Q
P/Q
Q/P