Recent questions without an upvoted answer

A metal has $\text{FCC}$ crystal structure with $2.71 \mathrm{~g} / \mathrm{cm}^{3}$ of density and $26.98 \mathrm{~g} / \mathrm{mol}$ of atomic weight. The Avogadro's nu...

During orthogonal turning by using a single point cutting tool, feed rate is $0.24 \mathrm{~mm} / \mathrm{rev}$. The uncut chip thickness is $0.23$ mm. The shear angle, t...

A drill bit during its lifetime can produce $150$ through holes in a plate at a drill-speed of $200$ RPM. If the drill-speed increases to $300$ RPM , then it can produce ...

The activities of a PERT network and their corresponding activity time estimates (in weeks) i.e., optimistic ( $t_{o}$ ), most likely ( $t_{m}$ ), and pessimistic ( $t_{p...

I am 2nd year btech student(starting) i want to appear in gate exam in 3rd year respectively. i have 1.5 year for my prep .and my maths is weak ...please can someone sugg...

Suppose that with a pulley system, youneed to exert a force of 1,400 N to lifta heavy object. But without the pulleysystem, you need to exert 4,200 N tolift the object. W...

Two cars, $P$ and $Q$, start from a point $X$ in India at $10 \text{ AM}$ . Car $P$ travels North with a speed of $25 \mathrm{~km} / \mathrm{h}$ and car $Q$ travels East ...

The ceiling function of a real number $x$, denoted by $c e(x)$, is defined as the smallest integer that is greater than or equal to $x$. Similarly, the floor function, de...

$P$ and $Q$ play chess frequently against each other. Of these matches, $P$ has won $80 \%$ of the matches, drawn $15 \%$ of the matches and lost $5 \%$ of the matches.If...

Which one of the following options has the correct sequence of objects arranged in the increasing number of mirror lines (lines of symmetry)?Circle; Square; Equilateral t...

A final year student appears for placement interview in two companies, $S$ and $T$ . Based on her interview performance, she estimates the probability of receiving job of...

For the differential equation given below, which one of the following options is correct?$$ \frac{\partial^{2} u}{\partial x^{2}}+\frac{\partial^{2} u}{\partial y^{2}}=0 ...

If two unbiased coins are tossed, then what is the probability of having at least one head?$0.25$$0.5$$0.675$$0.75$

Let a spherical block of ice at $-7^{\circ} \mathrm{C}$ be exposed to atmospheric air at $30^{\circ} \mathrm{C}$ with the gravitational direction as shown in the figure b...

​​​​In a laboratory experiment using a scaled down model to measure scour at a bridge pier, the Froude number is important. The ratio of the prototype length to the model...

​​​In a psychrometric chart, one axis represents dry-bulb temperature. The axis, that is perpendicular to the dry-bulb temperature axis, representswet-bulb temperaturespe...

​​​​​Among the following surface hardening processes, steel is heated to the lowest temperature incarburizingcyanidingnitridingcarbonitriding

​The welding process commonly used for fabricating tailor-welded blanks of dissimilar thickness for automotive applications isgas weldinglaser weldingarc weldingfriction ...