BUET Admission Mock Test 14

A train starts from rest. It acquires a speed of 25 ms−1 after 20 s. The total distance is:

1 Mark(s)

Your Answer:

500 m 500 m
31.25 m 31.25 m
300 m 300 m
250 m 250 m

The term hardware refers to:

1 Mark(s)

Your Answer:

computer manuals computer manuals
computer programs computer programs
machinery machinery
operating system operating system

The certain point where two rays meet to form an angle is called:

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Your Answer:

vertex vertex
acute angle acute angle
right angle right angle
obtuse angle obtuse angle

The measure of an obtuse angle is

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Your Answer:

A) A)
B) > 90° B) > 90°
C) = 90° C) = 90°
D) none of these D) none of these

Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same? (i) Good thermal conductivity (ii) Good electrical conductivity (iii) Ductility (iv) High melting point

1 Mark(s)

Your Answer:

A) (i) and (ii) A) (i) and (ii)
B) (i) and (iii) B) (i) and (iii)
C) (ii) and (iii) C) (ii) and (iii)
D) (i) and (iv) D) (i) and (iv)

The line joining the center of curvature and pole of the spherical mirror is known as:

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Your Answer:

center of curvature center of curvature
focal length focal length
principal axis principal axis
vertex vertex

A straight line parallel to time-axis on a distance-time graph tells that the object is:

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Your Answer:

at rest at rest
in motion in motion
moving with constant speed moving with constant speed
moving with variable speed moving with variable speed

A transparent polyethene sheet works as heat trapper because it:

1 Mark(s)

Your Answer:

traps radiations of sun inside only traps radiations of sun inside only
passes radiations of short wavelength only
traps long wavelength radiations traps long wavelength radiations
traps radiation of sun inside and passes radiations of short wavelength

{20 – [7 – (3 -2)] + 1/3 (4.2)} / 1.4 = ________?

1 Mark(s)

Your Answer:

11 11
12 12
14 14
19 19

Optics does not deal with ___________?

1 Mark(s)

Your Answer:

Nature of light waves Nature of light waves
Properties of light Properties of light
Characteristics of sound Characteristics of sound
Lenses and mirrors Lenses and mirrors

In vacuum, a coin and a feather dropped from the same height will reach the ground:

1 Mark(s)

Your Answer:

Simultaneously Simultaneously
Coin first Coin first
Feather first Feather first
Depends on orientation Depends on orientation

What is $\frac{31}{42} + \frac{11}{42}$?

1 Mark(s)

Your Answer:

$\frac{41}{42}$ $\frac{41}{42}$
1 1
$\frac{43}{42}$ $\frac{43}{42}$
$\frac{20}{21}$ $\frac{20}{21}$

A pendulum of length 0.65 m is taken to the moon. The period is 5.2 s. The value of "g" on the surface of the moon is:

1 Mark(s)

Your Answer:

1.5 ms-2 1.5 ms-2
0.948 ms-2 0.948 ms-2
0.35 ms-2 0.35 ms-2
2.35 ms-2 2.35 ms-2

|Pt(NH 3 ) 4 | |CuCl 4 | and |Cu(NH 3 ) 4 ||PtCl 4 | are known as

1 Mark(s)

Your Answer:

A) ionisation isomers. A) ionisation isomers.
B) coordination isomers B) coordination isomers
C) linkage isomers C) linkage isomers
D) polymerisation isomers D) polymerisation isomers

$\left|\begin{array}{cc} x & -7 \\ x & 5 x+1 \end{array}\right|$

1 Mark(s)

Your Answer:

A) 3x 2 + 4 A) 3x 2 + 4
B) x(5x + 8) B) x(5x + 8)
C) 3x + 4x 2 C) 3x + 4x 2
D) x(3x + 4) (5x + 8) D) x(3x + 4) (5x + 8)

For the rod in the previous question, the angular velocity $\omega$ acquired is:

1 Mark(s)

Your Answer:

$J/ML$ $J/ML$
$12J/ML$ $12J/ML$
$6J/ML$ $6J/ML$
$2J/ML$ $2J/ML$

Nitrobenzene on reaction with conc. HNO 3 /H 2 SO 4 at 80 – 100°C forms which one of the following products?

1 Mark(s)

Your Answer:

A) 1, 2-Dinitrobenzene A) 1, 2-Dinitrobenzene
B) 1, 3-Dinitrobenzene B) 1, 3-Dinitrobenzene
C) 1, 4-Dinitrobenzene C) 1, 4-Dinitrobenzene
D) 1, 2, 4-Trinitrobenzene D) 1, 2, 4-Trinitrobenzene

Which of following is not a base______________?

1 Mark(s)

Your Answer:

KOH KOH
NH3 NH3
PH3 PH3
BF3 BF3

Which oxide is most basic?

1 Mark(s)

Your Answer:

$\ce{MgO}$ $\ce{MgO}$
$\ce{Na2O}$ $\ce{Na2O}$
$\ce{Al2O3}$ $\ce{Al2O3}$
$\ce{SiO2}$ $\ce{SiO2}$

Microwaves are used for:

1 Mark(s)

Your Answer:

telecommunication telecommunication
satellite communication satellite communication
code transfer code transfer
fighting cancer fighting cancer

For a diatomic gas, the molar specific heat at constant volume $C_v$ is:

1 Mark(s)

Your Answer:

$3/2 R$ $3/2 R$
$R$ $R$
$5/2 R$ $5/2 R$
$7/2 R$ $7/2 R$

What is $16 \times 3$?

1 Mark(s)

Your Answer:

42 42
48 48
54 54
60 60

The rate of energy transferred if a current of 0.5 A passes through a bulb connected across a battery of 6 V for 20 s is:

1 Mark(s)

Your Answer:

80 J 80 J
20 J 20 J
30 J 30 J
60 J 60 J

The bond length of C=C is___________?

1 Mark(s)

Your Answer:

1.20A° 1.20A°
1.34A° 1.34A°
1.54A° 1.54A°
1.68A° 1.68A°

Among the following which arc ambidentate ligands? (i) SCN – (ii) NO$_{3}^{-}$ (iii) NO$_{2}^{-}$ (iv) C 2 O$_{4}^{2-}$

1 Mark(s)

Your Answer:

A) (i) and (iii) A) (i) and (iii)
B) (i) and (iv) B) (i) and (iv)
C) (ii) and (iii) C) (ii) and (iii)
D) (ii) and (iv) D) (ii) and (iv)

A wire is stretched by a certain amount. The work done is stored as:

1 Mark(s)

Your Answer:

Heat Energy Heat Energy
Elastic Potential Energy Elastic Potential Energy
Kinetic Energy Kinetic Energy
Chemical Energy Chemical Energy

The process in which the vapor molecules are recaptured by the molecules at the liquid surface is called:

1 Mark(s)

Your Answer:

evaporation evaporation
sublimation sublimation
condensation condensation
boiling boiling

Pair production can take place only with_________________?

1 Mark(s)

Your Answer:

X-rays X-rays
Gamma rays Gamma rays
UV-rays UV-rays
IR-rays IR-rays

The value of sin (2tan -1 (0.75)) is equal to

1 Mark(s)

Your Answer:

A) 0.75 A) 0.75
B) 1.5 B) 1.5
C) 0.96 C) 0.96
D) sin 1.5 96 D) sin 1.5 96

Find out the C.I on Rs.5000 at 4% p.a. compound half-yearly for 1 1/2 years.

1 Mark(s)

Your Answer:

Rs.420.20 Rs.420.20
Rs.319.06 Rs.319.06
Rs.306.04 Rs.306.04
Rs.294.75 Rs.294.75

After 2 half-lives, the fraction of nuclei remaining is:

1 Mark(s)

Your Answer:

45689 45689
45870 45870
45748 45748
42370 42370

Hoffmann bromamide reaction converts:

1 Mark(s)

Your Answer:

Amine to amide Amine to amide
Acid to amine Acid to amine
Amide to amine Amide to amine
Nitrile to amine Nitrile to amine

What is \$100 - 37$?

1 Mark(s)

Your Answer:

60 60
61 61
62 62
63 63

If −3 + (−7) − (+10) = −20 then −10 −7 + (−3) is equal to:

1 Mark(s)

Your Answer:

20 20
(−20) (−20)
(−15) (−15)
15 15

Moving along the circumference of a circle completes two revolutions. If the radius of the circular path is R, the ratio of displacement to the covered path will be_______________?

1 Mark(s)

Your Answer:

πR πR
2πR 2πR
0 0
4πR 4πR

The potential energy $U$ between two atoms in a diatomic molecule is given by $U(r) = A/r^{12} - B/r^6$. The equilibrium separation is:

1 Mark(s)

Your Answer:

$(2A/B)^{1/6}$ $(2A/B)^{1/6}$
$(A/B)^{1/6}$ $(A/B)^{1/6}$
$(2A/B)^{1/12}$ $(2A/B)^{1/12}$
$2A/B$ $2A/B$

Natural gas mostly consists of:

1 Mark(s)

Your Answer:

ethane ethane
butane butane
methane methane
pentane pentane

The general formula of carbohydrates is:

1 Mark(s)

Your Answer:

CnH2n+2 CnH2n+2
CnH2n CnH2n
CnH2n-2 CnH2n-2
Cx(H2O)y Cx(H2O)y

Which nitrogen oxide is paramagnetic?

1 Mark(s)

Your Answer:

$\ce{NO}$ $\ce{NO}$
$\ce{NO2}$ $\ce{NO2}$
$\ce{N2O}$ $\ce{N2O}$
$\ce{N2O5}$ $\ce{N2O5}$

The lines of the electric field were introduced by:

1 Mark(s)

Your Answer:

Newton Newton
Michael Faraday Michael Faraday
John burges John burges
Henry Pascal Henry Pascal

The two angles of any triangle are 60° and 40°. Then, the value of third angle is

1 Mark(s)

Your Answer:

A) 40° A) 40°
B) 60° B) 60°
C) 80° C) 80°
D) 50° D) 50°

A and B’s salaries together amount to Rs. 2,000. A spends 95% of his salary and B spends 85% of his. If now their savings are the same, what is A’s salary?

1 Mark(s)

Your Answer:

Rs.500 Rs.500
Rs.750 Rs.750
Rs.1250 Rs.1250
Rs.1500 Rs.1500

Which of the following statements is incorrect about fluorine_______________?

1 Mark(s)

Your Answer:

fluorine is restricted to -1 oxidation state
fluorine follows octet rule and as well as extended octet rule
fluorine has lowest dissociation energy among the halogens
both B and C both B and C

A person buys \$12$ pens for $₹10$ and sells \$10$ pens for $₹12$. Find the profit percentage.

1 Mark(s)

Your Answer:

0.44 0.44
0.4 0.4
0.48 0.48
0.36 0.36

Wattless current flows in a circuit containing:

1 Mark(s)

Your Answer:

Resistance only Resistance only
LCR LCR
Resistor and Inductor Resistor and Inductor
Pure Inductor or Capacitor Pure Inductor or Capacitor

Systolic pressure is called_______________?

1 Mark(s)

Your Answer:

Low blood pressure Low blood pressure
High blood pressure High blood pressure
Normal blood pressure Normal blood pressure
Abnormal blood pressure Abnormal blood pressure

Jayant drives x km in one hour. How much distance does he cover in 3 hours 40 minutes?

1 Mark(s)

Your Answer:

A) 3x + $\frac{2}{3}$ A) 3x + $\frac{2}{3}$
B) $\frac{2}{3}$x + 3 B) $\frac{2}{3}$x + 3
C) $\frac{11}{3}$x C) $\frac{11}{3}$x
D) $\frac{11}{3}$ + x (\frac{11}{3}\)x

The element having electronic configuration [kr] 4d10, 4f14,5s2,5p6,5d1,6s2 belongs to __________?

1 Mark(s)

Your Answer:

S-Block S-Block
P-Block P-Block
d-Block d-Block
f-Block f-Block

Antiperiplanar bonds in Newman projection:

1 Mark(s)

Your Answer:

0° apart 0° apart
180° apart 180° apart
90° apart 90° apart
120° apart 120° apart

Evaluating Your Answers

BUET Admission Mock Test 14 : Question 1 of 49