Your next chapter starts hereExplore admission guide
PRACTICE QUESTION BANK

মেকানিক্যাল ইঞ্জিনিয়ারিং

Department
25948Questions
25948MCQ
0CQ / Written
0%0 covered

Subjects / বিষয়

Non-Technical · Shared by all departments

রসায়ন

15 chapters

6500 questions6500 MCQ0 CQ
0/6500 covered0%
0%

Non-Technical · Shared by all departments

গণিত

4 chapters

2500 questions2500 MCQ0 CQ
0/2500 covered0%
0%

Non-Technical · Shared by all departments

ইংরেজি

11 chapters

2800 questions2800 MCQ0 CQ
0/2800 covered0%
0%

Technical

ME/IPE/MME

12 chapters

7200 questions7200 MCQ0 CQ
0/7200 covered0%
0%

Questions

0 read · 0 practiced · 0 answered in exams
2161. MCQPractice set · Question 13

Lift constant velocity-তে চললে apparent weight কত?

a.
mg
b.
0
c.
m(g+a)
d.
m(g−a)

Correct answer: a

Acceleration zero, তাই N=mg।

Sign in to save reading progress

2162. MCQPractice set · Question 14

Gravitational potential energy-এর formula কী?

a.
U=−GMm/r
b.
U=GMm/r²
c.
U=GM/r
d.
U=m/r

Correct answer: a

Infinity reference নিলে U=−GMm/r।

Sign in to save reading progress

2163. MCQPractice set · Question 15

Near Earth potential energy change-এর formula কী?

a.
ΔU=mgΔh
b.
ΔU=mg/Δh
c.
ΔU=GMm/r²
d.
ΔU=mgh²

Correct answer: a

ছোট height-এর জন্য ΔU=mgΔh।

Sign in to save reading progress

2164. MCQPractice set · Question 16

Gravitational potential-এর formula কী?

a.
V=−GM/r
b.
V=−GMm/r
c.
V=GM/r²
d.
V=mg

Correct answer: a

Potential হলো unit mass-এর potential energy।

Sign in to save reading progress

2165. MCQPractice set · Question 17

Potential-এর SI unit কী?

a.
J/kg
b.
J
c.
N
d.
m/s²

Correct answer: a

Potential energy per unit mass-এর unit J/kg।

Sign in to save reading progress

2166. MCQPractice set · Question 18

Infinity-তে gravitational potential সাধারণত কত?

a.
0
b.
−∞
c.
GM
d.
g

Correct answer: a

Standard reference V(∞)=0।

Sign in to save reading progress

2167. MCQPractice set · Question 19

Earth-এর centre-এ gravitational field কত?

a.
0
b.
g
c.
infinite
d.
G

Correct answer: a

Symmetry-এর কারণে field cancel করে।

Sign in to save reading progress

2168. MCQPractice set · Question 20

Earth-এর centre-এ potential কি zero?

a.
না, finite negative
b.
হ্যাঁ সবসময়
c.
infinite
d.
positive

Correct answer: a

Field zero হলেও potential contributions যোগ হয় এবং finite negative থাকে।

Sign in to save reading progress

2169. MCQPractice set · Question 21

Escape velocity কী?

a.
gravity overcome করে infinity-তে যেতে minimum speed
b.
orbital speed only
c.
terminal speed
d.
sound speed

Correct answer: a

এটি এমন minimum speed যাতে body আর ফিরে না আসে।

Sign in to save reading progress

2170. MCQPractice set · Question 22

Escape velocity-এর formula কী?

a.
v_e=√(2GM/R)
b.
v_e=√(GM/R)
c.
v_e=GM/R²
d.
v_e=2GM/R

Correct answer: a

Energy conservation থেকে formula পাওয়া যায়।

Sign in to save reading progress